A new type of fabric and a new leather product in which collagen fiber bundles form a network structure

Abstract

The invention discloses a new type of fabric and a brand new leather product in which collagen fiber bundles form a network structure. The fabric includes a bottom yarn weaving layer, and also includes collagen fiber bundles, and the bottom yarns inserted into the bottom yarn weaving layer protrude on the surface of the bottom yarn weaving layer, and the protruding collagen fiber bundles and their branches interweave to form a network structure, wherein a part of the branch in the collagen fiber bundle is sheathed on the ground yarn so that at least one end of the part of the branch protrudes from the ground yarn braided layer. Leather products include the aforementioned novel fabrics and leather coverings. The novel fabric and leather products have good mechanical properties due to the formation of a network structure.

Description

technical field [0001] The invention relates to a new type of fabric and a brand new leather product in which collagen fiber bundles form a network structure. Background technique [0002] The cortex is mainly used in tanning. The longitudinal section of the cortex is divided into three layers: the epidermis, the dermis and the subcutaneous tissue. The dermis is between the epidermis and the subcutaneous tissue, and the dermis is divided into the papillary layer and the reticular layer. The papillary layer is a thin layer of loose connective tissue close to the epidermis, which protrudes toward the epidermis to form a dermal papilla; after the leather is finished, the surface of the papillary layer is also called the grain surface of the finished leather, so this layer is called the grain surface layer in the tanning industry. The reticular layer is the thicker dense connective tissue below the papillary layer, in which thick collagen fiber bundles interweave into a net shap...

AI Technical Summary

Problems solved by technology

(3) Since the interstitial fibers are difficult to completely remove during the tanning process, the interstitial fibers will solidify and harden after the animal leather gradually loses water. In order to avoid the hardening of the raw hides, fatliquor is usually added to the animal leather The fatliquoring agent acts as a lubricant, and once the animal leather with the fatliquoring agent is washed with water, the fatliquoring agent will be lost, causing the hide to harden. Therefore, the animal leather is not suitable for washing

[0019] No matter which kind of artificial fur is mentioned above, the materials that form the fluff are generally synthetic fibers, animal hair, etc., and these materials are monofilament without branch structure. One end passes through the bottom yarn from the bottom and then goes up from the other side of the bottom yarn, so that the synthetic fiber or animal hair protrudes from the bottom yarn to form fluff, and the synthetic fiber or animal hair is clamped and fixed by the adjacent bottom yarn, so that , once the clamping force is not enough, it is prone to depilation, and each fluff and the bottom yarn are connected by a single interweaving point, and the strength of the connection is low, resulting in poor mechanical properties of artificial fur. In addition, if thick fluff is to be formed, then Requires a lot of synthetic fibers or animal hair

[0020] Since the fluff of the existing fur adopts monofilament fiber or animal hair, it is impossible to form a network structure outside the bottom yarn weaving layer

[0021] In the current actual production process, a large amount of leather scraps will be produced, and these leather scraps are limited in length due to the separated fibers, therefore, the leather scraps cannot be better utilized, resulting in a lot of waste and environmental pollution

Images