| (19) |
 |
|
(11) |
EP 0 218 212 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
20.01.1988 Bulletin 1988/03 |
| (43) |
Date of publication A2: |
|
15.04.1987 Bulletin 1987/16 |
| (22) |
Date of filing: 03.10.1986 |
|
|
| (84) |
Designated Contracting States: |
|
BE DE ES FR GB IT NL SE |
| (30) |
Priority: |
09.10.1985 US 785940
|
| (71) |
Applicant: AIR PRODUCTS AND CHEMICALS, INC. |
|
() |
|
| (72) |
Inventors: |
|
- Marten, Finn Lennart
()
- Famili, Amir
()
|
|
| |
|
| (54) |
Low foaming, high weaving efficiency polyvinyl alcohol size composition |
(57) An aqueous size composition for cotton-containing textile yarn comprising in an aqueous
solution
(a) 100 parts polyvinyl alcohol
(b) 2-15 parts hydrophobic waxy material
(c) 0.2-5 parts ethylene oxide-propylene oxide surfactant which has a surface tension
between about 37 and 48 dynes/cm as a 0.1% aqueous solution at 25°C, and a foaming
number less than about 20 (ml foam/g solution)°F as a 7% aqueous polyvinyl alcohol
solution containing 11.4 parts hydrogenated tallow wax and 2 parts surfactant per
100 parts polyvinyl alcohol.