The present invention relates to a stuffing material of down and feathers for thermal protection, particularly to a stuffing material of down stems for thermal protection.

Down and feathers are excellent natural stuffing materials for thermal protection and widely used in down coat, down quilt, down mattress and other beddings in batting forms. Since a down is flower shaped, that is, the down stems radiate from the calamus, its natural physical structure determines that it is unstable in the products, and easy to fuzz the production process for the products is very complex, low efficient and material-consuming; and the product with the stuffing material is uneven and appears unsightly and bulky, thus resulting in a low grade. A feather is flat and with a shaft in the middle distributed with barbules every 50µ moutward. Only a few amounts of small soft feathers can be used as batting material for stuffing, and most of the big feathers are abandoned due to the stiffness of the shaft, thus resulting in a waste of resource.

The object of the present invention is to provide a tailorable stuffing material of down stems for thermal protection in order to solve the problems including the conventional down and/or feather batting stuffing materials in the products are unstable and easy to fuzz; the production process for the products is complex, low efficient and material-consuming; the surface is uneven and the appearance is unsightly and bulky, thus resulting in a low grade. Only a few amounts of small soft feathers can be used as batting material for stuffing, and most of the big feathers are abandoned, thus resulting in a waste of resource.

The object of the present invention is accomplished by stuffing with down stems, in which the down stems are intercrossed and interlinked with each other, and the crossing and linking points are bonded with the adhesive forming a web piece structure.

The down stems intercross and wind together by textile fibers.

The crossing and winding points between the stems and the textile fibers are affixed by textile fibers with lower melting point.

The stems employ at least one of the single stems made from the washed duck down/feather, goose down/feather, and down stems produced during the conventional down processing.

The adhesive employs natural resins, polyurethanes, polyacrylates, polyethylacetates, polyvinyl chlorides or acrylic emulsion.

The textile fibers employ at least one of natural fibers, such as cotton, hemp, wool and silk, chemical fibers, such as terylen, polyamide, acrylon, chlorofiber, polyurethanes, viscose, PE/PET bicomponent fiber, ES composite fiber, and polypropylene fiber with lower melting point.

The present invention has the advantages of: (1) the stuffing material provides an even and flat structure, which is tailorable and non-fuzzing, and the manufacture process for the products is very simple, efficient and material saving; (2) fine barbules are distributed outward along the stems every 50µm, and with the nodes and/or barbicels thereon forming more tiny spaces for retaining more still air, thereby providing good performance of wind-proofing and thermal protecting, and providing a good look without bulky appearance, thus resulting in a high grade; (3) the combination of stems and textile fibers can utilize the advantages of excellent strength, hydroscopicity and cohesion, thus producing stuffing materials of down stems having various properties; (4) big feathers and branches can be used so as to sufficiently utilize the resource instead of waste.

• FIG. 1 is a schematic view of the structure according to the present invention.

With reference to the figure, stem 1 employs at least one of the single stems made of the washed duck or goose down/feather by removing off the calamus or shaft. The barbules 2 distributed outward along the main stem of the stem 1 every 50µm are allowed to intercross and interlink with nodes 3 and/or barbicels 4 distributed on the barbules by nonwoven techniques, and then the crossing and linking points are bonded together by applying adhesive 5 to form a web piece structure; or textile fibers 6 are added into the stem 1, and intercrossed and wound with the barbules 2, nodes 3 and/or barbicels 4 on the stem 1 by nonwoven techniques to form a web piece structure; or at least one kind of textile fibers 6 with lower melting point are added into the stem 1 and intercrossed and wound with the barbules 2, nodes 3 and/or barbicels 4 on the stem 1 by nonwoven techniques, and then the crossing and winding points are affixed by the textile fibers with lower melting point, thus forming a web piece structure. The adhesive 5 employs natural resins, polyurethanes, polyacrylates, polyethylacetates, polyvinyl chlorides and/or acrylic emulsions. The textile fibers 6 employ at least one of: natural fibers such as cotton, hemp, wool and silk, chemical fibers, such as terylen, polyamide, acrylon, chlorofiber, polyurethanes, viscose, PE/PET bicomponent fiber, ES composite fiber, and polypropylene fiber with lower melting point.