A NOVEL FABRIC AND A NEW LEATHER PRODUCT WITH COLLAGEN FIBER BUNDLES FORMING A RETICULAR STRUCTURE

Abstract

A fabric and a leather product in which collagen fiber bundles form a network structure has a base yarn woven layer, and also has collagen fiber bundles. The collagen fiber bundles sheathed in the base yarn woven layer protrude on the surface of the base yarn woven layer, and the protruding collagen fiber bundles and their branches are interwoven to form a network structure, where a part of the branches in the collagen fiber bundle is sheathed on the base yarn so that at least one end of the branch protrudes from the base yarn braided layer. Leather products may include these fabrics and leather surface layers.

Claims

1. A fabric in which collagen fiber bundles form a reticular structure, comprising: a base yarn braided layer; collagen fiber bundles, a base yarn of the collagen fiber bundles sheathed in the base yarn braided layer protrudes on a surface of the base yarn braided layer, and the protruding collagen fiber bundles and their branches are interwoven to form a reticular structure; wherein a part of the collagen fiber bundles are sheathed on the base yarn so that at least one end of partial branches protrudes from the base yarn braided layer.

2. The fabric with collagen fiber bundle forming a reticular structure according to claim 1, wherein the collagen fiber bundle forms a reticular structure on one side of a bottom yarn braided layer or the collagen fiber bundle forms a reticular structure on each side of the bottom yarn braided layer.

3. The fabric with a collagen fiber bundle forming a reticular structure according to claim 1, wherein the collagen fiber bundle forms a structure comprising more than one continuously connected “V”-shaped tissue on a bottom yarn braided layer.

4. The fabric with collagen fiber bundles forming a reticular structure according to claim 1, wherein other textile fibers are mixed in the collagen fiber bundles, and the collagen fiber bundles and their branches are interwoven with each other, and the collagen fiber bundles and their branches are interwoven with the other textile fibers to form a reticular structure.

5. The fabric with collagen fiber bundles forming a reticular structure according to claim 1, wherein a bottom yarn braided layer is a knitted or woven weave layer.

6. The fabric with collagen fiber bundles forming a reticular structure according to claim 1, wherein the fabric formed by the braided layer of a bottom yarn and the reticular structure is allowed to interweave the collagen fiber bundles and their branches with the bottom yarn a plurality of times through a finishing process.

7. A fabric formed by collagen fiber bundle yarns, comprising: a base yarn braided layer; and a base yarn in the base yarn braided layer being sheathed with collagen fiber bundle yarns, and the collagen fiber bundle yarns protruding from a surface of the base yarn braided layer in a loose hair reticular structure.

8. The fabric formed by means of collagen fiber bundle yarns according to claim 7, wherein the collagen fiber bundle yarns protruding from the surface of a bottom yarn braided layer are in the form of collagen fiber bundles and their branches interwoven in a reticular structure.

9. The fabric formed by collagen fiber bundle yarns according to claim 7, wherein other textile fibers are mixed in the collagen fiber bundle yarns, and the collagen fiber bundles and their branches are interwoven with each other, and the collagen fiber bundles and their branches are interwoven with the other textile fibers to form a reticular structure.

10. The fabric formed by collagen fiber bundle yarns according to claim 7, wherein the fabric formed by the braided layer of a bottom yarn and the reticular structure is allowed to interweave the collagen fiber bundle and its branches with the bottom yarn a plurality of times through a finishing process.

11. A leather product made from the fabric using collagen fiber bundles forming a reticular structure as claimed in claim 1, wherein a leather top layer is provided on one side of the fabric.

12. The leather product made from the fabric formed by collagen fiber bundle yarns as claimed in claim 7, wherein a leather top layer is provided on one side of the novel fabric.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0043] FIG. 1 is a schematic diagram of a novel fabric in which collagen fiber bundles form a reticular structure in Embodiment 1.

[0044] FIG. 2 is a schematic diagram of a knitting base yarn braided layer.

[0045] FIG. 3 is a schematic diagram of a woven base yarn braided layer.

[0046] FIG. 4 is a schematic diagram of collagen fiber bundles.

[0047] FIG. 5 is a schematic diagram of another structure of the novel fabric in which collagen fiber bundles form a reticular structure.

[0048] FIG. 6 is a schematic diagram of the novel fabric of Embodiment 2.

[0049] FIG. 7 is a schematic diagram of the novel fabric of Embodiment 3.

DETAILED DESCRIPTION

[0050] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

Embodiment 1

[0051] As shown in FIG. 1, the novel fabric in which collagen fiber bundles form a reticular structure comprises a base yarn braided layer 1 and collagen fiber bundles 2.

[0052] As shown in FIG. 2, the base yarn braided layer 1 may be a knitted braided layer, or a woven braided layer as shown in FIG. 3. The base yarn braided layer can be woven by filament, or by short fiber yarn, or by mixing filament and short fiber yarn.

[0053] As shown in FIG. 4, the collagen fiber bundle 2 is composed of a collagen fiber bundle body 21 and branches 22. The branch 22 is a gradual branch formed on the main body of the collagen fiber bundle. The gradual branch means that there are secondary branches from the main branch, and sub-branches are formed on the secondary branches, and so on.

[0054] As shown in FIG. 1 and FIG. 5, the collagen fiber bundles 2 sheathed in the base yarn braided layer 1 protrude on the surface of the base yarn braided layer, and the protruding collagen fiber bundles and their branches are interwoven to form a reticular structure 10. A part of the branches of the collagen fiber bundle is sheathed on the base yarn so that at least one end of the part of the branches protrudes, and the collagen fiber bundles form a structure composed of more than one continuous “V”-shaped tissues on the base yarn braided layer. Of course, the collagen fiber bundles that form a reticular structure can also be mixed with other textile fibers, such as chemical fibers and natural fibers. When this structure is adopted, other textile fibers mixed in will also be woven with the base yarn, and other textile fibers will interweave with collagen fiber bundles and their branches to form a reticular structure. If other textile fibers are added, the weight percentage of other textile fibers in the reticular structure is less than 60%.

[0055] In the process of sheathing the collagen fiber bundle into the base yarn, the collagen fiber bundle can also be entangled and braided with the base yarn under the action of the reverse blowing device through the reverse blowing device, so that the collagen fiber bundle and its branches can form multiple continuous V or W-shaped tissue structures in the novel fabric, making the combination of collagen fiber bundles and base yarn stronger.

[0056] The novel fabric formed by the base yarn braided layer and the reticular structure allows the collagen fiber bundles and their branches to be interwoven with the base yarn multiple times through post-finishing processes such as needle punching or spunlacing to make the novel fabric more compact.

[0057] As shown in FIG. 1, a reticular structure is formed on one side of the base yarn braided layer. As shown in FIG. 5, a reticular structure is formed on both sides of the base yarn braided layer.

[0058] In the present invention, the reticular structure is formed by the interweaving of collagen fiber bundles and their branches. The reticular structure comprises branches that are sheathed in and protruding from the base yarn braided layer, branches that are not sheathed on the base yarn, and the main body of collagen fibers, which are interwoven with each other. In addition, the reticular structure protrudes from the bottom yarn braided layer, which is different from the special three-dimensional reticular structure of the existing leather.

[0059] The collagen fiber bundles are taken from animal leather. The leather is formed by tanning the skin peeled off from the animal body after removing the epidermal layer and subcutaneous tissue layer and performing a series of physical, mechanical and chemical treatments on the remaining dermis layer. The collagen fiber is the main fiber in the dermis, which constitutes the main body of the dermis, accounting for 95% to 98% of all the fibers in the dermis, and the collagen fibers are in bundles. The state of the collagen fibers in leather is that the collagen fiber bundles are sometimes divided into several thinner collagen fiber bundles. These thinner collagen fiber bundles can be combined with other collagen fiber bundles to form a thicker fiber bundle. In this way, it keeps dividing and closing, interweaving and crisscrossing each other to form a special three-dimensional reticular braided structure. When making a new type of fabric, the collagen fiber bundles need to be unraveled from the animal leather first, and then the collagen fiber bundles need to be combed and then put on the base yarn. When the collagen fiber bundles are combed, the collagen fiber bundles continue to split, split into finer collagen fiber bundles or/and form hierarchical branches in the collagen fiber bundles. The thinner the main body of the fiber bundle, the finer the branches and the more branches. In this way, when the collagen fiber bundle is sheathed into the base yarn braided layer and the base yarn is woven, not only the main body of the collagen fiber bundle is sheathed with the base yarn, but also some branches can be sheathed with the base yarn. In this way, the interweaving points of each collagen fiber bundle and the base yarn braided layer are greatly increased, so that the connection strength between the collagen fiber bundle and the base yarn braided layer is improved, and the phenomenon of hair loss is less likely to occur. In addition, since the collagen fibers have branches, the collagen fiber bundles and their branches are interwoven to form a reticular structure protruding from the base yarn braided layer. The structure formed by the reticular structure and the base yarn braided layer greatly improves the strength and other mechanical properties of the novel fabric.

[0060] To sum up, the novel fabric of the present invention is relative to the structure of animal leather. (1) The novel fabric of the present invention is a reticular structure formed by collagen fiber bundles and their branches, which are sheathed on the base yarn braided layer with high structural strength, so that the collagen fiber bundles have a foundation, while the animal leather only forms a reticular structure, and its collagen fiber bundles do not have a foundation. (2) The collagen fiber bundles of the novel fabric of the present invention is an interwoven reticular structure that is emitted from the base yarn braided layer. The reticular structure is controllable, and the reticular structure of the animal leather will show a different structure and level of the reticular structure due to the difference of the animal leather. The reticular structure of the two is different. (3) When forming a new type of fabric in the present invention, a series of processes such as dissolving and combing animal leather are required. In this way, the collagen fiber bundles are mainly extracted to remove other fiber ingredients and non-fiber ingredients in animal leather. The novel fabric is mainly composed of the collagen fiber bundles and base yarns, and contains no or very little non-fibrous ingredients such as fibrous interstitium. It is not easy to appear the phenomenon of fabric hardening due to the existence of fibrous interstitium. Therefore, the finished product can be washed with water, and animal leather contains non-fibrous ingredients such as fibrous interstitium. After the animal leather gradually loses water, the fibers will solidify and become hard. In order to prevent the raw hides from hardening, fatliquors are usually added to the animal leather, and the fatliquors play the role of lubrication, and once the animal leather with fatliquor is washed with water, the fatliquor will be lost, causing the hide to become hard, so that it cannot be washed with water. (4) The novel fabric of the present invention is better than animal leather in properties such as mechanics and structure.

[0061] Compared with fur, the novel fabric of the present invention has a reticular structure interwoven by collagen fiber bundles and their branches in the shape of the base yarn, while the wool layer does not form a reticular structure in the existing fur. In addition, in the existing artificial fur, only the monofilament fibers are sheathed with the base yarn, while the collagen fiber bundle and its branches are sheathed on the base yarn in the present invention. Therefore, the novel fabric of the present invention has high strength and good mechanical properties.

Embodiment 2

[0062] As shown in FIG. 6, the novel fabric formed by collagen fiber bundle yarns comprises a base yarn braided layer 1. As shown in FIG. 2, the base yarn braided layer 1 is the same as the Embodiment 1.

[0063] The collagen fiber bundle yarn 20 is sheathed on the base yarn in the base yarn braided layer 1, and the collagen fiber bundle yarn protruding from the surface of the base yarn braided layer 1 has a loose wool reticular structure 10.

[0064] The collagen fiber bundle yarn is made by twisting collagen fiber bundle or other processes. As shown in FIG. 4, the structure of the collagen fiber bundle 2 is the same as the embodiment.

[0065] The above-mentioned new type of fabric is made by feeding collagen fiber bundle yarns while weaving the base yarn braided layer. The collagen fiber bundle yarns are sheathed on the base yarn braided layer to form a loop, and then through cutting pile, brushing and other finishing processes. On the surface of the base yarn braided layer, a loose wool reticular structure in which the collagen fiber bundles and their branches are interwoven is formed.

[0066] The above-mentioned loose hair reticular structure may be formed on one side of the base yarn braided layer, or may be formed on both sides of the base yarn braided layer. However, the collagen fiber bundle yarns sheathed on the base yarn braided layer exist in the form of yarns.

[0067] As another embodiment, the collagen fiber bundle yarn may also contain other textile fibers, such as chemical fibers or natural fibers, and the weight percentage of other textile fibers in the reticular structure is less than 60%.

[0068] The collagen fiber bundles form a special three-dimensional reticular woven structure as described in Embodiment 1. When making a novel fabric with this structure, the yarns formed by the collagen fiber bundles are sheathed into the base yarn braided layer and the base yarn is woven into a loop, so that the collagen fiber bundle yarns sheathed into the base yarn are always yarns, and the collagen fiber bundle yarns protruding from the base yarn braided layer have a loose reticular structure. In this way, the loose hair reticular structure is connected to the base yarn braid through the original collagen fiber bundle yarns at the root, so that the connection strength is high. The phenomenon of hair loss is not easy to occur, and the collagen fiber bundles and their branches in the scattered hair reticular structure are interwoven with each other. The structure formed by the collagen fiber bundle yarn and the base yarn braided layer greatly improves the strength and other mechanical properties of the novel fabric. The loose hair reticular structure is fluffy and has good warmth retention effect.

Embodiment 3

[0069] As shown in FIG. 7, the novel fabric formed by collagen fiber bundle yarns comprises a base yarn braided layer 1. As shown in FIG. 2, the base yarn braided layer 1 is the same as the Embodiment 1.

[0070] A collagen fiber bundle yarn 20 is sheathed on the base yarn in the base yarn braided layer 1, and the collagen fiber bundle yarn protruding from the surface of the base yarn braided layer 1 is a reticular structure 200 in which collagen fiber bundles and their branches are interwoven.

[0071] The Collagen fiber bundle yarn is made by twisting collagen fiber bundle or other processes. As shown in FIG. 4, the structure of the collagen fiber bundle 2 is the same as that of Embodiment 1.

[0072] The above-mentioned new type of fabric is made by feeding collagen fiber bundle yarns while weaving the base yarn braided layer. The collagen fiber bundle yarns are sheathed on the base yarn braided layer to form a loop, and then through the finishing processes such as cutting pile and brushing, the collagen fiber bundle and its branches are interwoven on the surface of the base yarn braided layer to form a loose wool reticular structure. Finally, after finishing processes such as acupuncture or spunlace, a dense reticular structure in which collagen fiber bundles and their branches are interwoven is formed on the surface of the bottom yarn braid. At the same time, some collagen fiber bundles and their branches are sheathed on the base yarn braid.

[0073] Another method of making the above-mentioned novel fabric is to feed the collagen fiber bundle yarn while weaving the base yarn braided layer, and the collagen fiber bundle yarn is sheathed on the base yarn braided layer to form a loop, then the looped collagen fiber bundle yarn protruding from the base yarn braid layer is opened through the finishing process such as needle punching or spunlacing, and then the looped collagen bundle yarn and the adjacent looped collagen fiber bundle yarn are interwoven again to re-establish a new dense reticular structure of collagen fiber bundles and their branches intertwined. At the same time, part of the collagen fiber bundles and their branches 100 are sheathed on the base yarn braid.

[0074] The aforementioned reticular structure may be formed on one side of the base yarn braided layer, or may be formed on both sides of the base yarn braided layer. However, the collagen fiber bundle yarns sheathed on the base yarn braided layer exist in the form of yarns.

[0075] As another embodiment, the collagen fiber bundle yarn may also comprise other textile fibers, such as chemical fibers or natural fibers, and the weight percentage of other textile fibers in the network structure is less than 60%.

[0076] The collagen fiber bundles form a special three-dimensional reticular woven structure as described in Embodiment 1. When making a novel fabric with this structure, the yarns formed by the collagen fiber bundles are sheathed into the base yarn braided layer and the base yarn is woven into a loop, so that the collagen fiber bundle yarns sheathed into the base yarn are always yarns, and after the collagen fiber bundle yarns protruding from the base yarn braided layer are dispersed, the collagen fiber bundle yarn is a reticular structure of collagen fiber bundles and their branches interwoven. In this way, the reticular structure is connected to the base yarn braided layer through the original collagen fiber bundle yarns at the root, so that the connection strength is high, the phenomenon of hair loss is not easy to occur, the collagen fiber bundles and their branches in the reticular structure are interwoven with each other, and part of the collagen fiber bundles and their branches can also be sheathed on the base yarn. The structure formed by the collagen fiber bundle yarn and the base yarn braided layer greatly improves the strength and other mechanical properties of the novel fabric.

[0077] Since the novel fabric in the embodiment can be used to produce a variety of other products, it is widely used.

[0078] In the current tanning industry, a large amount of leather leftovers are produced. In my country alone, there are about 1.4 million tons of leather leftovers. These leftovers are not only the natural and precious protein fiber resources bestowed by nature, but also contain a lot of chemical materials, electricity, heat, labor, etc. during the tanning process. Therefore, the development and reuse of this resource is extremely necessary.

[0079] In practical applications, the novel fabric can also be combined with the leather surface layer to form a new leather product with a reticular structure. The leather surface layer is PU or PVC. The leather surface layer can also be formed by coating or pasting other materials. The novel fabric and leather surface layer are made by existing methods. Since this new leather product does not contain or contains very few interstitial fibers, it can be washed with water. Moreover, it has the hygienic properties of real leather and gives full play to the excellent properties of collagen fiber as a resource. Of course, new fabrics can also be made into blankets, fabrics, etc. Since the above-mentioned new fabrics can be used to produce a variety of products, they are widely used.