(19)
(11)EP 3 653 357 A1

(12)EUROPEAN PATENT APPLICATION

(43)Date of publication:
20.05.2020 Bulletin 2020/21

(21)Application number: 19200496.8

(22)Date of filing:  13.12.2013
(51)International Patent Classification (IPC): 
B29C 33/42(2006.01)
B29C 41/40(2006.01)
A41D 19/04(2006.01)
A41D 19/015(2006.01)
B29C 41/14(2006.01)
A41D 19/00(2006.01)
B29L 31/48(2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(62)Application number of the earlier application in accordance with Art. 76 EPC:
13899233.4 / 3079513

(71)Applicant: Covco (H.K.) Limited
Wanchai, Hong Kong (HK)

(72)Inventor:
  • FURLONG, John Joseph
    Bangkok (TH)

(74)Representative: McGuire, Gillian Margaret 
Carpmaels & Ransford LLP One Southampton Row
London WC1B 5HA
London WC1B 5HA (GB)

 
Remarks:
This application was filed on 30-09-2019 as a divisional application to the application mentioned under INID code 62.
Remarks:
Claims filed after the date of filing of the application/date of receipt of the application (Rule 68(4) EPC).
 


(54)AMBIDEXTROUS FISH SCALE-TEXTURED GLOVE


(57) The described invention relates to an ambidextrous working glove having fish scale-textured inner and outer surfaces and methods of making same.




Description

FIELD OF THE INVENTION



[0001] The described invention relates to an ambidextrous working glove having fish scale-textured inner and outer surfaces and methods of making same.

BACKGROUND



[0002] Typical uses of working gloves include food processing, chemical handling, pesticide spraying, and the like. The thickness of working gloves should not hamper tactile sensation. However, the working gloves should be strong enough to resist rupture. It is desirable in working gloves to provide roughened or textured inner and outer surfaces, since working gloves with smooth surfaces make gripping items difficult for a wearer. A textured outer surface enables a wearer to adequately grip items that may be slippery. In addition, the inner surface of the glove is in close contact with the wearer's skin and does not absorb the wearer's perspiration. A textured inner surface may reduce the likelihood of slippage of the wearer's hand inside the working glove during use that may be caused by perspiration, wherein the textured inner surface may enable the perspiration to flow away from any pressured surface without "skating" of the glove over the surface of the wearer's hand.

[0003] Current attempts to form a glove with textured inner and outer surfaces have employed methods whereby a texture is imparted to the inner surface by using a textured form, and either treating the film forming the glove in a manner that erodes the film thereby creating texture on the outer surface, or by spraying particles onto the outer surface of the glove. Such methods are unsatisfactory, due to various factors, such as, for example, lack of dexterity, difficulty in donning, non-uniform thickness of the glove causing the glove to rupture during use.

[0004] Current working gloves frequently utilize donning powders, such as, for example, cornstarch or talc, to enable a wearer to don the glove more easily. However, donning powders can contaminate wounds, irritate skin, leave a residue on equipment and clothing, and mechanically interfere with some procedures that a user may perform while wearing the working glove.

[0005] Previous attempts to ameliorate the slippage of the glove caused by the wearer's perspiration have proved unsuccessful. For example, cotton flock linings frequently are only able to absorb small amount of perspiration before losing their effectiveness.

[0006] Additionally, present methods to impart a contact-reducing texture to the inner surface of the glove to ameliorate the effects of the wearer's perspiration and/or aid donning frequently reduce mechanical performance of the glove, leading to rupture of the glove.

[0007] Accordingly, there remains a need for a working glove with textured inner and outer surfaces, with improved dexterity, ease of donning and a reduced frequency of failure during use.

SUMMARY



[0008] The present invention provides an ambidextrous working glove having fish scale-textured inner and outer surfaces and methods of making same.

[0009] In one embodiment, the present invention provides a method for making an ambidextrous working glove having fish scale-textured inner and outer surfaces comprising the steps of:
  1. a. providing a first polymer solution;
  2. b. providing a coagulant solution;
  3. c. providing a second polymer solution;
  4. d. providing at least one former having a fish scale-textured surface and dipping the at least one former into the coagulant solution to coat the at least one former with coagulant;
  5. e. removing the at least one former from the coagulant solution and drying the coagulant coating on the at least one former;
  6. f. dipping the at least one former coated with coagulant into the first polymer solution, and allowing the first polymer solution to coat the at least one former;
  7. g. removing the at least one former from the first polymer solution and drying the polymer coating on the at least one former, forming a film;
  8. h. washing the film on the at least one former, and dipping the film coated at least one former into a second polymer solution, and allowing the second polymer solution to coat the film; and
  9. i. stripping the glove from the at least one former.


[0010] In one embodiment, the ambidextrous working glove of the present invention complies with at least one requirement selected from the group consisting of FFDCA requirements for food handling, European Standard EN374-3, European Standard EN388:2003, European Standard EN374-2, European Standard EN420:2003, European Standard EN1186:2002, and European Standard EN421:2010.

[0011] In one embodiment, the ambidextrous working glove of the present invention complies with FFDCA requirements for food handling.

[0012] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard EN374-3.

[0013] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard EN388:2003.

[0014] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard EN374-2.

[0015] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard EN420:2003.

[0016] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard EN1186:2002.

[0017] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard EN421:2010.

[0018] In one embodiment, the at least one former has a fish scale-textured surface that imparts a fish scale-texture to the ambidextrous working glove of the present invention. In one embodiment, the fish scale-textured surface of the at least one former imparts a fish scale-texture to the inner and outer surfaces of the ambidextrous working glove of the present invention.

[0019] In one embodiment, first polymer solution is a synthetic rubber copolymer solution. The synthetic rubber copolymer solution may be a solution comprising a copolymer of acetonitrile and butadiene.

[0020] In one embodiment, first polymer solution is a latex solution.

[0021] In one embodiment, second polymer solution is a solution that allows the ambidextrous working glove of the present invention to slide over a wearer's hand while the glove is being donned. In one embodiment, the second polymer solution is a polyurethane solution.

[0022] In one embodiment, the present invention provides an ambidextrous working glove having fish scale-textured inner and outer surfaces.

[0023] In one embodiment, the present invention provides at least one former for making an ambidextrous an ambidextrous working glove having fish scale-textured inner and outer surfaces wherein:
  1. a. the surface of the at least one former is textured on the front and back of the region of the at least one former that forms the fingers of the ambidextrous working glove;
  2. b. the surface of the at least one former is textured on the region of the at least one former that forms the palm of the ambidextrous working glove;
  3. c. the surface of the at least one former is textured on the region of the at least one former that forms the back of the ambidextrous working glove; and
  4. d. the surface of the at least one former is textured on the region of the at least one former that forms the region of the thumb that faces the palm of the ambidextrous working glove.

BRIEF DESCRIPTION OF THE DRAWINGS



[0024] 

Figure 1 depicts one method by which one embodiment of the ambidextrous working glove of the present invention may be formed.

Figure 2 shows an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention.

Figure 3 shows the dimensions of the fish scale pattern etched or engraved into an at least one former used to make one embodiment of the ambidextrous working glove of the present invention.

Figure 4 shows a perspective view of an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention.

Figure 5 shows a front view of an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention.

Figure 6 shows a rear view of an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention.

Figure 7 panel a) shows a left view of an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention. Panel b) shows a right view of an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention.

Figure 8 panel a) shows a top view of an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention. Panel b) shows a bottom view of an at least one former that is utilized to form one embodiment of the ambidextrous working glove of the present invention.

Figure 9 shows one embodiment of the ambidextrous working glove of the present invention on an at least one former prior to stripping from the former.

Figure 10 panel (a) shows the palm of one embodiment of the ambidextrous working glove of the present invention. Panel (b) shows the back of one embodiment of the wearable glove of the present invention.

Figure 11 shows the inner surface of one embodiment of the ambidextrous working glove of the present invention.

Figure 12 shows a perspective view of one embodiment of the ambidextrous working glove of the present invention.

Figure 13 shows a front view of one embodiment of the ambidextrous working glove of the present invention.

Figure 14 shows a rear view of one embodiment of the ambidextrous working glove of the present invention.

Figure 14 panel a) shows a left view of one embodiment of the ambidextrous working glove of the present invention. Panel b) shows a right view of one embodiment of the ambidextrous working glove of the present invention.

Figure 16 panel a) shows a top view of one embodiment of the ambidextrous working glove of the present invention. Panel b) shows a bottom view of one embodiment of the ambidextrous working glove of the present invention.


DETAILED DESCRIPTION



[0025] In one embodiment, the ambidextrous working glove of the present invention is formed on at least one former, which may be suitably mounted on a desired carrier, such as a movable board or a conveyor chain, The at least one former is carried sequentially through a series of steps as illustrated schematically in Figure 1. In forming the ambidextrous working glove of the present invention, it is preferable to dip the at least one former into a bath of suitable coagulant material. The coagulant may control the thickness of the film of the first polymer solution that forms on the at least one former, that forms the ambidextrous working glove of the present invention. Alternatively, the coagulant may assist in the later removal of the ambidextrous working glove of the present invention from the at least one former. Alternatively, the coagulant solution may control the thickness of the film of the first polymer solution and may assist in the later removal of the ambidextrous working glove of the present invention from the at least one former. The at least one former is dipped into a slip dip bath of a first polymer solution to form a film on the at least one former. The film coated at least one former is passed through an oven to solidify the film. The solid film coated at least one former is then washed or leached to remove any contaminants, then the washed solid film coated at least one former is then dipped into a second polymer solution that coats the solid film coated at least one former. A bead is formed on the coated film on the at least one former, and the finished glove is then stripped from the at least one former.

[0026] In certain embodiments, the coated film may be treated before the finished glove is stripped from the at least one former. The treatment may be vulcanization. Alternatively, the coated film may be treated with at least one additional chemical. Examples of the at least one additional chemical may include antimicrobial agents, such as the antimicrobial coating disclosed in EP 1965719 A2.

[0027] Referring to Figure 1, an ambidextrous working glove having fish scale-textured inner and outer surfaces is made via a method comprising the steps of:
  1. a. providing a first polymer solution;
  2. b. providing a coagulant solution;
  3. c. providing a second polymer solution;
  4. d. providing at least one former having a fish scale-textured surface and dipping the at least one former into the coagulant solution to coat the at least one former with coagulant;
  5. e. removing the at least one former from the coagulant solution and drying the coagulant coating on the at least one former;
  6. f. dipping the at least one former coated with coagulant into the first polymer solution, and allowing the first polymer solution to coat the at least one former;
  7. g. removing the at least one former from the first polymer solution and drying the polymer coating on the at least one former, forming a film;
  8. h. washing the film on the at least one former, and dipping the film coated at least one former into a second polymer solution, and allowing the second polymer solution to coat the film; and
  9. i. stripping the glove from the at least one former.


[0028] In one embodiment, the finished gloves may then be further processed. Such further processing may include, for example, packaging, sterilization, and the like.

[0029] In one embodiment, prior to removal of the finished glove from the at least one former, the finished glove may be treated with at least one additional chemical. Examples of the at least one additional chemical may include antimicrobial agents, such as the antimicrobial coating disclosed in EP 1965719 A2. The inner surface of the finished glove may be treated with at least one additional chemical. Alternatively, the outer surface of the finished glove may be treated with at least one additional chemical. Alternatively, both the inner and outer surface of the finished glove may be treated with at least one additional chemical.

[0030] The first polymer solution may be any polymer suitable for forming a working glove that complies with at least one requirement selected from the group consisting of FFDCA requirements for food handling, European Standard EN374-3, European Standard EN388:2003, European Standard EN374-2, European Standard EN420:2003, European Standard EN1186:2002, and European Standard EN421:2010.

[0031] The first polymer solution may be any polymer suitable for forming a working glove that complies with European Standard EN374-3 for chemical resistance. Alternatively, the first polymer solution may be any polymer suitable for forming a working glove that complies with FFDCA requirements for food handling. Alternatively, the first polymer solution may be any polymer suitable for forming a working glove that complies with European Standard EN388:2003 for protective gloves against mechanical risks. Alternatively, the first polymer solution may be any polymer suitable for forming a working glove that complies with European Standard EN374-2. Alternatively, the first polymer solution may be any polymer suitable for forming a working glove that complies with European Standard EN420:2003. Alternatively, the first polymer solution may be any polymer suitable for forming a working glove that complies with European Standard EN1186:2002. Alternatively, the first polymer solution may be any polymer suitable for forming a working glove that complies with European Standard EN421:2010.

[0032] In one embodiment, the first polymer solution is latex. In an alternate embodiment, the first polymer solution is a synthetic rubber copolymer solution. The synthetic rubber copolymer may be a solution comprising a copolymer of acetonitrile and butadiene.

[0033] In one embodiment, the first polymer solution is a solution comprising a mixture of nitrile latex, sulphur, zinc oxide, titanium dioxide, zinc dibutyldithiocarbamate (ZDBC), ammonia, vultamol and potassium hydroxide.

[0034] In one embodiment, the solution the first polymer solution is a solution comprising a mixture of nitrile latex, sulphur, zinc oxide, titanium dioxide, ZDBC, ammonia, vultamol and potassium hydroxide is formed according to the mixture set forth in Table 1 below.
Table 1
ChemicalParts per hundred of rubber
Nitrile latex (43% v/v, initial concentration) 100
Sulphur powder 1.34
Zinc oxide 1.74
Titanium dioxide 1.88
ZDBC 1.05
Ammonia (12% v/v initial concentration) 3.60
Vultamol 0.23
Potassium hydroxide 0.87


[0035] In one embodiment, the first polymer solution is the solution comprising the copolymer of acetonitrile and butadiene disclosed in WO2007105122 A1.

[0036] In one embodiment, the first polymer solution is the solution comprising the copolymer of acetonitrile and butadiene disclosed in EP1435374 A2.

[0037] In one embodiment, the first polymer solution is the solution comprising the copolymer of acetonitrile and butadiene disclosed in EP1260549 A1.

[0038] In one embodiment, the first polymer solution is the solution comprising the copolymer of acetonitrile and butadiene disclosed in EP0925329 B1.

[0039] The first polymer solution may contain additional additives, such as, for example, colorants, preservatives, fragrances, and the like.

[0040] The coagulant solution may be a calcium nitrate solution. In one embodiment the coagulant solution is a 35% w/v solution of calcium nitrate. Alternatively, the coagulant solution may be the coagulant solution disclosed in EP1638423 B1.

[0041] In one embodiment, the at least one former has a fish scale-textured surface that imparts a fish scale-texture to the ambidextrous working glove of the present invention. In one embodiment, the fish scale-textured surface of the at least one former imparts a fish scale-texture to the inner and outer surfaces of the ambidextrous working glove of the present invention. One of ordinary skill in the art can readily appreciate that not all surface textures on the at least one former are capable of imparting a surface texture to both the inner and outer surface of an ambidextrous working glove of the present invention.

[0042] In one embodiment, the measured thickness of the glove in a textured area is greater than the measured thickness of the glove measured in a non-textured area. The thickness of the glove may be measured by any suitable method, such as, for example, via the use of a micrometer.

[0043] In one embodiment, the textured surface measured thickness of the glove in a textured area is 10% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 15% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 20% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 25% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 30% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 35% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 40% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 45% greater than the measured thickness of the glove measured in a non-textured area. In an alternate embodiment, the measured thickness of the glove in a textured area is 50% greater than the measured thickness of the glove measured in a non-textured area.

[0044] In one embodiment, the textured inner and outer surfaces of the ambidextrous working glove of the present invention is formed by the direct transfer function of the surface texture of the at least one former. A preferred textured former surface for the ambidextrous working glove of the present invention has been found to be provided by at least one form that has a fish-scale textured finish. Transfer texturing from such a surface provides a highly desirable textured interior and outer surfaces. The textured interior surface provides a highly desirable hand-engaging surface and the textured exterior surface provides highly desirable grip.

[0045] One of ordinary skill in the art can readily appreciate that the ability of the at least one former to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention can vary in response to a variety of factors including, but not limited to the polymer forming the film of the working glove, the thickness of the working glove, and the shape and/or depth of the texture of the at least one former.

[0046] In one embodiment, 100% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, less than 100% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 90% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 80% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 70% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 60% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 50% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 40% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 30% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 20% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention. In an alternate embodiment, 10% of the surface of the former is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention.

[0047] In one embodiment, the surface of the at least one former is textured on the front and back of the region of the at least one former that forms the fingers of the ambidextrous working glove of the present invention. In one embodiment, the surface of the at least one former is textured on the region of the at least one former that forms the palm of the ambidextrous working glove of the present invention. In one embodiment, the surface of the at least one former is textured on the region of the at least one former that forms the back of the ambidextrous working glove of the present invention. In one embodiment, the surface of the at least one former is textured on the region of the at least one former that forms the region of the thumb that faces the palm of the ambidextrous working glove of the present invention.

[0048] In one embodiment, the texture transferred or imparted to the inner and outer surfaces of the ambidextrous working glove of the present invention does not weaken the glove. In one embodiment, the texture transferred or imparted to the inner and outer surfaces of the ambidextrous working glove of the present invention does not affect removal of the glove from the at least one former.

[0049] In one embodiment, an individual fish-scale in the textured surface of the at least one former is etched into the at least one former at a depth of about 0.4 mm, and is about 2.3 mm wide and 3.4 mm high.

[0050] Figures 2 to 8 show various views of an at least one former that is used to form one embodiment of the ambidextrous working glove of the present invention, showing how the individual fish scales are etched into the at least one former.

[0051] The size of the at least one former determines the size of the ambidextrous working glove of the present invention. For example, a "small" former would be used to form a "small" glove, and so on.

[0052] Referring to Figure 3, showing an at least one former that is used to form one "large" sized embodiment of the ambidextrous working glove of the present invention, the area of the former that is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention is defined as follows: The width of the area shown by line "A" is 60 mm; the width of the area shown by line "B" is 96 mm; the width of the area shown by line "C" is 83 mm; the width of the area shown by line "D" is 88 mm; the width of the area shown by line "E" is 26 mm; the width of the area shown by line "F" is 17 mm; the width of the area shown by line "G" is 19 mm; the width of the area shown by line "H" is 16 mm; the width of the area shown by line "I" is 17 mm; the length of the area shown by line "J" is 50 mm; the length of the area shown by line "K" is 195 mm; the length of the area shown by line "L" is 218 mm; the length of the area shown by line "M" is 207 mm; and the length of the area shown by line "N" is 95 mm. The width of the former indicated at line "A" is 97 mm; the width of the former indicated at line "B" is 115 mm; the width of the former indicated at line "C" is 122 mm; the width of the former indicated at line "D" is 110 mm; the width of the former indicated at line "E" is 35.5 mm; the width of the former indicated at line "F" is 35 mm; the width of the former indicated at line "G" is 36 mm; the width of the former indicated at line "H" is 34 mm; and the width of the former indicated at line "I" is 30 mm.

[0053] In an alternate embodiment, the former that is used to form one "small" sized embodiment of the ambidextrous working glove of the present invention, the area of the former that is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention is defined as follows: The width of the area shown by line "A" is 45 mm; the width of the area shown by line "B" is 76 mm; the width of the area shown by line "C" is 73 mm; the width of the area shown by line "D" is 88 mm; the width of the area shown by line "E" is 16 mm; the width of the area shown by line "F" is 14 mm; the width of the area shown by line "G" is 15 mm; the width of the area shown by line "H" is 13 mm; the width of the area shown by line "I" is 13 mm; the length of the area shown by line "J" is 45 mm; the length of the area shown by line "K" is 172 mm; the length of the area shown by line "L" is 184 mm; the length of the area shown by line "M" is 172 mm; and the length of the area shown by line "N" is 85 mm. The width of the former indicated at line "A" is 82.5 mm; the width of the former indicated at line "B" is 95.5 mm; the width of the former indicated at line "C" is 106 mm; the width of the former indicated at line "D" is 88.5 mm; the width of the former indicated at line "E" is 29 mm; the width of the former indicated at line "F" is 29 mm; the width of the former indicated at line "G" is 31 mm; the width of the former indicated at line "H" is 30 mm; and the width of the former indicated at line "I" is 29 mm.

[0054] In an alternate embodiment, the former that is used to form one "medium" sized embodiment of the ambidextrous working glove of the present invention, the area of the former that is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention is defined as follows: The width of the area shown by line "A" is 50 mm; the width of the area shown by line "B" is 86 mm; the width of the area shown by line "C" is 74 mm; the width of the area shown by line "D" is 79 mm; the width of the area shown by line "E" is 20 mm; the width of the area shown by line "F" is 16 mm; the width of the area shown by line "G" is 18 mm; the width of the area shown by line "H" is 15 mm; the width of the area shown by line "I" is 14 mm; the length of the area shown by line "J" is 46 mm; the length of the area shown by line "K" is 182 mm; the length of the area shown by line "L" is 195 mm; the length of the area shown by line "M" is 186 mm; and the length of the area shown by line "N" is 95 mm. The width of the former indicated at line "A" is 89 mm; the width of the former indicated at line "B" is 105 mm; the width of the former indicated at line "C" is 115 mm; the width of the former indicated at line "D" is 100 mm; the width of the former indicated at line "E" is 33 mm; the width of the former indicated at line "F" is 32 mm; the width of the former indicated at line "G" is 32.5 mm; the width of the former indicated at line "H" is 30 mm; and the width of the former indicated at line "I" is 27.5 mm.

[0055] In an alternate embodiment, the former that is used to form one "extra large" or "XL" sized embodiment of the ambidextrous working glove of the present invention, the area of the former that is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention is defined as follows: The width of the area shown by line "A" is 66 mm; the width of the area shown by line "B" is 92 mm; the width of the area shown by line "C" is 90 mm; the width of the area shown by line "D" is 95 mm; the width of the area shown by line "E" is 26 mm; the width of the area shown by line "F" is 17 mm; the width of the area shown by line "G" is 17 mm; the width of the area shown by line "H" is 17 mm; the width of the area shown by line "I" is 16 mm; the length of the area shown by line "J" is 55 mm; the length of the area shown by line "K" is 208 mm; the length of the area shown by line "L" is 220 mm; the length of the area shown by line "M" is 208 mm; and the length of the area shown by line "N" is 105 mm. The width of the former indicated at line "A" is 101 mm; the width of the former indicated at line "B" is 115 mm; the width of the former indicated at line "C" is 134 mm; the width of the former indicated at line "D" is 116 mm; the width of the former indicated at line "E" is 37.5 mm; the width of the former indicated at line "F" is 38 mm; the width of the former indicated at line "G" is 37.5 mm; the width of the former indicated at line "H" is 35 mm; and the width of the former indicated at line "I" is 31.5 mm.

[0056] In an alternate embodiment, the former that is used to form one "extra extra large" or "XXL" sized embodiment of the ambidextrous working glove of the present invention, the area of the former that is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention is defined as follows: The width of the area shown by line "A" is 67 mm; the width of the area shown by line "B" is 101 mm; the width of the area shown by line "C" is 108 mm; the width of the area shown by line "D" is 103 mm; the width of the area shown by line "E" is 23 mm; the width of the area shown by line "F" is 22 mm; the width of the area shown by line "G" is 21 mm; the width of the area shown by line "H" is 20 mm; the width of the area shown by line "I" is 19 mm; the length of the area shown by line "J" is 54 mm; the length of the area shown by line "K" is 207 mm; the length of the area shown by line "L" is 222 mm; the length of the area shown by line "M" is 211 mm; and the length of the area shown by line "N" is 100 mm. The width of the former indicated at line "A" is 109 mm; the width of the former indicated at line "B" is 119 mm; the width of the former indicated at line "C" is 140 mm; the width of the former indicated at line "D" is 126 mm; the width of the former indicated at line "E" is 40 mm; the width of the former indicated at line "F" is 40 mm; the width of the former indicated at line "G" is 41 mm; the width of the former indicated at line "H" is 38 mm; and the width of the former indicated at line "I" is 38 mm.

[0057] In an alternate embodiment, the former that is used to form one "extra extra extra large" or "XXXL" sized embodiment of the ambidextrous working glove of the present invention, the area of the former that is textured to impart or transfer a texture to both the inner and outer surfaces of the ambidextrous working glove of the present invention is defined as follows: The width of the area shown by line "A" is 62 mm; the width of the area shown by line "B" is 103 mm; the width of the area shown by line "C" is 112 mm; the width of the area shown by line "D" is 110 mm; the width of the area shown by line "E" is 24 mm; the width of the area shown by line "F" is 20 mm; the width of the area shown by line "G" is 20 mm; the width of the area shown by line "H" is 20 mm; the width of the area shown by line "I" is 18 mm; the length of the area shown by line "J" is 54 mm; the length of the area shown by line "K" is 205 mm; the length of the area shown by line "L" is 224 mm; the length of the area shown by line "M" is 212 mm; and the length of the area shown by line "N" is 105 mm. The width of the former indicated at line "A" is 124 mm; the width of the former indicated at line "B" is 144 mm; the width of the former indicated at line "C" is 156 mm; the width of the former indicated at line "D" is 136 mm; the width of the former indicated at line "E" is 40.5 mm; the width of the former indicated at line "F" is 39 mm; the width of the former indicated at line "G" is 40 mm; the width of the former indicated at line "H" is 37.5 mm; and the width of the former indicated at line "I" is 34 mm.

[0058] The textured inner and outer surfaces of one embodiment of the ambidextrous working glove of the present invention can be greater detail in Figures 9 to 11. A graphical representation of the fish-scale textured outer surface of an ambidextrous working glove of the present invention is shown in Figures 12 to 16.

[0059] In one embodiment, the ambidextrous working glove of the present invention has a measured thickness in a non-textured area selected from the range of thicknesses spanning from about 6mil to about 10 mil.

[0060] In one embodiment, the ambidextrous working glove of the present invention has a weight of about 20 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 19 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 18 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 17 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 16 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 15 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 14 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 13 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 12 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 11 g. In an alternate embodiment, the ambidextrous working glove of the present invention has a weight of about 10 g.

[0061] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard EN420:2003 and A1:2009 clause 5 sizing and dexterity regulations.

[0062] In one embodiment, the ambidextrous working glove of the present invention complies with European Standard BS EN374:2003 chemical and micro-organism protection regulations.

[0063] In one embodiment, second polymer solution is a solution that allows the ambidextrous working glove of the present invention to slide over a wearer's hand while the glove is being donned. In one embodiment, the second polymer solution is a polyurethane solution.

[0064] In one embodiment, the second polymer solution is a solution comprising polyurethane (10% v/v final concentration), and 12% ammonia (2% final concentration) in water.

[0065] In one embodiment, the second polymer solution forms a cholorinated film on the inner surface of the ambidextrous working glove of the present invention. In one embodiment, the second polymer solution forms a cholorinated film on the inner surface of the ambidextrous working glove of the present invention according to the methods described in WO2010023634. In one embodiment, the second polymer solution is a polyisoprene solution. In one embodiment, the polyisoprene solution is the polyisoprene solution described in EP2381100 A1.

[0066] The present invention is further illustrated, but not limited by, the following examples.

EXAMPLES


Example 1: Testing Embodiments of the Ambidextrous Working Glove of the Present Invention for Resistance to Permeation by Chemicals According to BS EN 374-3:2003



[0067] Samples of powder-free 8 mil black, 10 mil black and 8 mil blue nitrile gloves were tested in accordance with BS EN 374:2003 part 3. The results are shown in the tables below. The permeation performance levels are defined as follows: Level 1 is defined as an observed measured breakthrough time of greater than 10 minutes. Level 2 is defined as an observed measured breakthrough time of greater than 30 minutes. Level 3 is defined as an observed measured breakthrough time of greater than 60 minutes. Level 4 is defined as an observed measured breakthrough time of greater than 120 minutes. Level 5 is defined as an observed measured breakthrough time of greater than 240 minutes. Level 6 is defined as an observed measured breakthrough time of greater than 480 minutes.
























Example 2: Testing Embodiments of the Ambidextrous Working Glove of the Present Invention for Sizing and Dexterity According to EN 420:2003 + A1:2009 Clause 5



[0068] Samples of powder-free 8 mil black, 10 mil black and 8 mil blue nitrile gloves were tested in accordance with EN 420:2003 + A1:2009 Clause 5. The results are shown in the tables below. The permeation performance levels are defined as follows: For sizing, the minimum size for a size 6 glove is 220 mm; the minimum size for a size 7 glove is 230 mm; the minimum size for a size 8 glove is 240 mm; the minimum size for a size 9 glove is 250 mm; the minimum size for a size 10 glove is 260 mm; the minimum size for a size 11 glove is 270 mm. For dexterity, level 1 is defined as a wearer picking up an 11mm diameter pin; level 2 is defined as a wearer picking up a 9.5mm diameter pin; level 3 is defined as a wearer picking up an 8mm diameter pin; level 4 is defined as a wearer picking up a 6mm diameter pin; level 5 is defined as a wearer picking up a 5mm diameter pin.







[0069] Publications cited throughout this document are hereby incorporated by reference in their entirety. Although the various aspects of the invention have been illustrated above by reference to examples and preferred embodiments, it will be appreciated that the scope of the invention is defined not by the foregoing description but by the following claims properly construed under principles of patent law.

Exemplary embodiments:



[0070] 
  1. 1. A method for making an ambidextrous working glove having fish scale-textured inner and outer surfaces comprising the steps of:
    1. a. providing a first polymer solution;
    2. b. providing a coagulant solution;
    3. c. providing a second polymer solution;
    4. d. providing at least one former having a fish scale-textured surface and dipping the at least one former into the coagulant solution to coat the at least one former with coagulant;
    5. e. removing the at least one former from the coagulant solution and drying the coagulant coating on the at least one former;
    6. f. dipping the at least one former coated with coagulant into the first polymer solution, and allowing the first polymer solution to coat the at least one former;
    7. g. removing the at least one former from the first polymer solution and drying the polymer coating on the at least one former, forming a film;
    8. h. washing the film on the at least one former, and dipping the film coated at least one former into a second polymer solution, and allowing the second polymer solution to coat the film; and
    9. i. stripping the glove from the at least one former.
  2. 2. The method of embodiment 1, wherein the ambidextrous working glove complies with at least one requirement selected from the group consisting of FFDCA requirements for food handling, European Standard EN374-3, European Standard EN388:2003, European Standard EN374-2, European Standard EN420:2003, European Standard EN1186:2002, and European Standard EN421:2010.
  3. 3. The method of embodiment 1, wherein the first polymer solution is a synthetic rubber copolymer solution.
  4. 4. The method of embodiment 4, wherein the synthetic rubber copolymer solution is a solution comprising a copolymer of acetonitrile and butadiene.
  5. 5. The method of embodiment 1, wherein the first polymer solution is latex.
  6. 6. The method of embodiment 1, wherein the second polymer solution is a solution that allows the ambidextrous working glove of the present invention to slide over a wearer's hand while the glove is being donned.
  7. 7. The method of embodiment 1, wherein the second polymer solution is a polyurethane solution.
  8. 8. The method of embodiment 1, wherein the film has a thickness selected from the range of thicknesses spanning from about 6mil to about 10 mil.
  9. 9. The method of embodiment 1, wherein the at least one former has a fish scale-textured surface that imparts a texture to the inner and outer surfaces of the ambidextrous working glove.
  10. 10. The method of embodiment 9, wherein the surface of the at least one former is textured on the front and back of the region of the at least one former that forms the fingers of the ambidextrous working glove.
  11. 11. The method of embodiment 9, wherein the surface of the at least one former is textured on the region of the at least one former that forms the palm of the ambidextrous working glove.
  12. 12. The method of embodiment 9, wherein the surface of the at least one former is textured on the region of the at least one former that forms the back of the ambidextrous working glove.
  13. 13. The method of embodiment 9, wherein the surface of the at least one former is textured on the region of the at least one former that forms the region of the thumb that faces the palm of the ambidextrous working glove.
  14. 14. An ambidextrous working glove formed by the method of embodiment 1.
  15. 15. A former for making an ambidextrous an ambidextrous working glove having fish scale-textured inner and outer surfaces wherein:
    1. a. the surface of the at least one former is textured on the front and back of the region of the at least one former that forms the fingers of the ambidextrous working glove;
    2. b. the surface of the at least one former is textured on the region of the at least one former that forms the palm of the ambidextrous working glove;
    3. c. the surface of the at least one former is textured on the region of the at least one former that forms the back of the ambidextrous working glove; and
    4. d. the surface of the at least one former is textured on the region of the at least one former that forms the region of the thumb that faces the palm of the ambidextrous working glove.



Claims

1. A method for making an ambidextrous working glove having fish scale-textured inner and outer surfaces comprising the steps of:

a. providing a first polymer solution;

b. providing a coagulant solution;

c. providing a second polymer solution;

d. providing at least one former having a fish scale-textured surface and dipping the at least one former into the coagulant solution to coat the at least one former with coagulant;

e. removing the at least one former from the coagulant solution and drying the coagulant coating on the at least one former;

f. dipping the at least one former coated with coagulant into the first polymer solution, and allowing the first polymer solution to coat the at least one former;

g. removing the at least one former from the first polymer solution and drying the polymer coating on the at least one former, forming a film;

h. washing the film on the at least one former, and dipping the film coated at least one former into a second polymer solution, and allowing the second polymer solution to coat the film; and

i. stripping the glove from the at least one former.


 
2. The method of claim 1, wherein the ambidextrous working glove complies with at least one requirement selected from the group consisting of FFDCA requirements for food handling, European Standard EN374-3, European Standard EN388:2003, European Standard EN374-2, European Standard EN420:2003, European Standard EN1186:2002, and European Standard EN421:2010.
 
3. The method of claim 1, wherein the first polymer solution is a synthetic rubber copolymer solution.
 
4. The method of claim 4, wherein the synthetic rubber copolymer solution is a solution comprising a copolymer of acetonitrile and butadiene.
 
5. The method of claim 1, wherein the first polymer solution is latex.
 
6. The method of claim 1, wherein the second polymer solution is a solution that allows the ambidextrous working glove of the present invention to slide over a wearer's hand while the glove is being donned.
 
7. The method of claim 1, wherein the second polymer solution is a polyurethane solution.
 
8. The method of claim 1, wherein the film has a thickness selected from the range of thicknesses spanning from about 6mil to about 10 mil.
 
9. The method of claim 1, wherein the at least one former has a fish scale-textured surface that imparts a texture to the inner and outer surfaces of the ambidextrous working glove.
 
10. The method of claim 9, wherein the surface of the at least one former is textured on the front and back of the region of the at least one former that forms the fingers of the ambidextrous working glove.
 
11. The method of claim 9, wherein the surface of the at least one former is textured on the region of the at least one former that forms the palm of the ambidextrous working glove.
 
12. The method of claim 9, wherein the surface of the at least one former is textured on the region of the at least one former that forms the back of the ambidextrous working glove.
 
13. The method of claim 9, wherein the surface of the at least one former is textured on the region of the at least one former that forms the region of the thumb that faces the palm of the ambidextrous working glove.
 
14. An ambidextrous working glove formed by the method of claim 1.
 
15. A former for making an ambidextrous an ambidextrous working glove having fish scale-textured inner and outer surfaces wherein:

a. the surface of the at least one former is textured on the front and back of the region of the at least one former that forms the fingers of the ambidextrous working glove;

b. the surface of the at least one former is textured on the region of the at least one former that forms the palm of the ambidextrous working glove;

c. the surface of the at least one former is textured on the region of the at least one former that forms the back of the ambidextrous working glove; and

d. the surface of the at least one former is textured on the region of the at least one former that forms the region of the thumb that faces the palm of the ambidextrous working glove.


 




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Cited references

REFERENCES CITED IN THE DESCRIPTION



This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description