CN219820842U - Composite leather fiber microfiber leather similar to cowhide of head layer - Google Patents
Composite leather fiber microfiber leather similar to cowhide of head layer Download PDFInfo
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- CN219820842U CN219820842U CN202321224848.3U CN202321224848U CN219820842U CN 219820842 U CN219820842 U CN 219820842U CN 202321224848 U CN202321224848 U CN 202321224848U CN 219820842 U CN219820842 U CN 219820842U
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- Prior art keywords
- fiber
- base cloth
- leather
- dermis
- composite
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- 239000000835 fiber Substances 0.000 title claims abstract description 132
- 239000010985 leather Substances 0.000 title claims abstract description 55
- 229920001410 Microfiber Polymers 0.000 title claims abstract description 26
- 239000003658 microfiber Substances 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000004744 fabric Substances 0.000 claims abstract description 73
- 210000004207 dermis Anatomy 0.000 claims abstract description 38
- 239000003292 glue Substances 0.000 claims abstract description 28
- 230000035515 penetration Effects 0.000 claims abstract description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 39
- 238000000605 extraction Methods 0.000 claims description 13
- 230000002500 effect on skin Effects 0.000 claims description 9
- 239000004745 nonwoven fabric Substances 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 125000003944 tolyl group Chemical group 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000002649 leather substitute Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 239000002759 woven fabric Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000035699 permeability Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004332 deodorization Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920006052 Chinlon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- -1 i.e. Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model relates to the technical field of artificial leather, in particular to composite dermis fiber microfiber leather similar to head layer cowhide, which comprises a base cloth and a layer of dermis fiber on the back of the base cloth, wherein the dermis fiber is interluded with the fiber of the base cloth to realize the fixation of the dermis fiber and the base cloth; the base cloth is formed with a layer of glue with a certain thickness in a front penetration mode, and the glue layer bonds the fibers of the base cloth with the dermis fibers inserted into the base cloth.
Description
Technical Field
The utility model relates to the technical field of artificial leather, in particular to composite dermis fiber microfiber leather similar to head layer cowhide.
Background
Natural leather has excellent characteristics and is widely used for producing daily necessities and industrial products, but has long manufacturing period, low yield and high cost, and along with the growth of world population, the demand for leather is increasing, and the limited quantity of natural leather can not meet the market demand. Accordingly, many industries have largely adopted artificial leather to replace natural leather.
Microfiber leather, i.e., microfiber synthetic leather, is one of the artificial leathers widely used in the fields of luggage, clothing, footwear, vehicle interior and furniture, and as shown in fig. 1, generally comprises a layer of base cloth 3 and a layer of dermis fiber 1 compounded on the surface of the base cloth 3. The base fabric 3 is generally a non-woven fabric, and in order to enhance the connection firmness between the dermis fiber 1 and the base fabric 3, a layer of glue 2 is generally coated on the surface of the base fabric 3 to connect the dermis fiber. The defects of the microfiber leather are as follows: after the glue is solidified, a layer of film is formed to block holes of the base cloth, so that the air permeability, the moisture absorption and deodorization effects are affected, the whole microfiber leather is harder, the texture and the comfort degree are affected, and the effect of the cowhide on the head layer is difficult to achieve or approach, so that the problem needs to be solved.
Disclosure of Invention
The utility model aims to overcome the defects in the background technology and provide the composite dermis fiber microfiber leather similar to the first-layer cowhide, which has the effect similar to the first-layer cowhide and physical properties.
The technical scheme adopted by the utility model is as follows: the composite dermis fiber microfiber leather similar to the cowhide of the head layer comprises a base cloth and a layer of dermis fiber on the back surface of the base cloth, wherein the dermis fiber is interpenetrated and bonded with the fiber of the base cloth, so that the fixation of the dermis fiber and the base cloth is realized; the base cloth is formed with a layer of glue with a certain thickness in a front penetration mode, and the glue layer bonds the fibers of the base cloth with the dermis fibers inserted into the base cloth.
Preferably, the leather fabric further comprises a layer of woven fabric, the woven fabric is arranged between the leather fibers and the base fabric, the leather fibers are simultaneously interpenetrated and bonded with the fibers of the woven fabric and the fibers of the base fabric, and the leather fibers, the woven fabric and the base fabric are fixedly connected.
Preferably, the base fabric is a nonwoven fabric, and the fibers thereof are sea-island fibers.
Preferably, the sea-island fiber of the base cloth is an ultra-fine fiber which is defibrated after penetrating the glue.
Preferably, the thickness of the glue is one half to one third of the total thickness of the leather fiber and the base cloth after being fixedly connected.
Preferably, the glue is PU resin resistant to toluene extraction.
Preferably, the length of the dermis fiber is 3-8mm.
Preferably, the sea-island fiber is toluene extraction type superfine indefinite island nylon/polyester fiber or PVA water-soluble sea-island fiber.
The utility model has the beneficial effects that: (1) In the utility model, the leather fiber is fixed on the back of the base cloth through processes such as hydroentanglement, and no film formed by glue is arranged between the leather fiber and the base cloth, so that the leather fiber has good air permeability and texture; (2) A woven fabric is arranged between the dermis fiber and the base fabric, so that the tensile strength is improved; (3) Glue is permeated into the front surface of the base fabric to strengthen the dermis fiber, so that the dermis fiber is prevented from falling off; (4) The base cloth adopts sea-island fibers, sea can be eliminated through a defibration process, ultrafine fibers serving as islands are reserved, a plurality of gaps are formed, the weight is reduced, the air permeability can be increased, the front surface of the base cloth can be prevented from being completely sealed by glue, the softness and texture can be improved, and the effect and physical properties similar to those of the cowhide of the head layer are achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of a conventional microfiber leather.
FIG. 2 is a schematic cross-sectional view of embodiment 1 of the present utility model.
FIG. 3 is a schematic cross-sectional view of embodiment 2 of the present utility model.
Fig. 4 is a schematic diagram of an island fiber in which "sea" is eliminated by a defibration process, and ultrafine fibers remain as "islands".
The drawings are as follows: leather fiber 1, glue 2, base cloth 3, woven cloth 4, sea 5.1 and island 5.2.
Detailed Description
The objects, technical solutions and advantages of the present utility model will be further described with reference to the accompanying drawings and examples, but the present utility model is not limited to the following examples, for the purpose of making the objects, technical solutions and advantages of the present utility model more clearly understood by those skilled in the art.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model.
Example 1
As shown in fig. 2, the present embodiment provides a composite dermal fiber microfiber leather similar to a head layer cowhide, which comprises a layer of base cloth 3 and a layer of dermal fibers 1 on the back surface of the base cloth 3. The fibers of the dermis fiber 1 and the base cloth 3 are penetrated and bonded by a water needling process, so that the dermis fiber 1 and the base cloth 3 are fixedly connected. The front surface of the base cloth 3 is formed into a layer of glue 2 penetrating into the base cloth 3 by a scraping penetration method, and the layer of glue 2 bonds the fibers of the base cloth 3 with the dermis fibers 1 penetrating into the base cloth 3. According to the rule of infiltration, generally, the closer to one side of the dermis fiber 1, the less glue 2 is infiltrated, so that the whole base fabric is prevented from being infiltrated with the glue, and the softness and the air permeability are prevented from being affected. The thickness of the glue 2 penetrating the base cloth 3 is one half to one third of the total thickness of the leather fiber 1 and the base cloth 3 after being fixedly connected. Generally, the thickness of the dermal fiber 1 is 60-70% of the total thickness, and the thickness of the base cloth 3 is 30-40% of the total thickness. In order to avoid dissolution during defibration, the glue 2 is a PU resin resistant to extraction by toluene.
The dermis fiber 1 is extracted from dermis leftover materials, and the length is 3-8mm. The base fabric 3 is a nonwoven fabric (i.e., a nonwoven fabric), and the fibers thereof are sea-island fibers. And the sea-island fibers of the base cloth 3 are defibrated after the base cloth 3 is permeated into the glue 2, so as to obtain the superfine fibers. The sea-island fiber is toluene extraction type superfine indefinite island nylon/polyester fiber or PVA water-soluble sea-island fiber.
The method of example 1 is as follows:
1. the raw materials are dermis fibers with the length of 3-8mm extracted from dermis leftover materials, and toluene extraction type nylon superfine short fibers with indefinite islands, or toluene extraction type polyester superfine short fibers with indefinite islands, or PVA water-soluble sea island fibers, and the toluene extraction type nylon superfine short fibers with indefinite islands are taken as an example.
2. Toluene extraction type indefinite island chinlon superfine short fiber is produced into a fiber with gram weight of 200-350g/m by a needling method 2 Density of 0.18-0.2g/m 3 Is a superfine fiber non-woven fabric substrate; the leather fiber is uniformly formed into the gram weight of 250-500g/m by wet papermaking (or air-laid) process technology 2 The leather fiber net is overlapped on the superfine fiber non-woven fabric base material and enters an extra-high water pressure (not less than 200-450 kg) water jet reinforcement process, leather fibers are brought into fiber gaps of the needle-punched non-woven fabric through the water jet reinforcement process, the original non-woven base material is further encrypted, and then a denser leather fiber and superfine fiber non-woven base material roll are obtained through a thermal shrinkage drying (toluene extraction type superfine fiber heat shrinkage) process; the front surface of the superfine fiber of the leather fiber and superfine fiber nonwoven substrate roll is coated with PU resin (water or oil) which is resistant to extraction of toluene through a coating and scraping penetration method, the thickness of coating and scraping penetration is controlled, the thickness is controlled to be one half to one third of the total thickness after the leather fiber 1 and the substrate 3 are fixedly connected, then the leather fiber enters a toluene extraction and defibration process, as shown in figure 4, the sea 5.1 part of the superfine short fiber is removed, the 5.2 part of the island is reserved (gaps are generated after the sea 5.1 is removed, the air permeability can be ensured, the blocking of glue is avoided), and the novel composite leather fiber superfine fiber leather material with soft hand feeling, moisture absorption and deodorization functions is obtained. The subsequent product can be used for veneering or spraying frosting on the basis of the new material according to the actual application requirement of the product, and dyeing to obtain the new material product of the composite leather fiber microfiber leather with the scalp-like effect with different effects.
Example 2
As shown in fig. 3, this embodiment further includes a woven fabric 44 on the basis of embodiment 1, wherein the woven fabric 44 is disposed between the dermis fiber 1 and the base fabric 3, and the dermis fiber 1 is simultaneously interlaced with the fibers of the woven fabric 4 and the fibers of the base fabric 3, so as to achieve the fixation of the dermis fiber 1, the woven fabric 4 and the base fabric 3, and the thickness of the woven fabric 44 is about 10% of the total thickness after the fixation of the dermis fiber 1, the woven fabric 4 and the base fabric 3.
The natural head layer cowhide has compact structure and finer fiber diameter, the fiber is penetrated, cohesive and wound through the water needling process and the glue to achieve compactness, the physical properties of the head layer cowhide are presented, the fiber is reduced to achieve a fine diameter through the fiber splitting of the island fiber, and the soft hand feeling of the head layer cowhide is presented. The material adopts fiber extracted from leather leftover materials and toluene extracted superfine indefinite island nylon (polyester) fiber (or PVA water-soluble sea island fiber) as raw materials, and is compounded by a non-woven fabric process and subjected to PU coating and fiber opening treatment to form the integrated composite leather fiber microfiber leather new material, which has the moisture absorption and deodorization effects of the leather fiber and the excellent physical and mechanical properties of microfiber with high strength and high tearing.
The foregoing description is only of the preferred embodiments of the present utility model, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides a kind of first layer cow hide's compound dermis fibre microfiber leather, includes base cloth (3) and one deck dermis fibre (1) of its back, its characterized in that:
the dermis fiber (1) is interpenetrated and bonded with the fiber of the base cloth (3), so that the dermis fiber (1) is fixedly connected with the base cloth (3);
the base cloth (3) is formed with a layer of glue (2) with a certain thickness in a front penetration mode, and the layer of glue (2) bonds the fibers of the base cloth (3) with the dermis fibers (1) penetrating into the base cloth (3).
2. The scalp-like composite dermal fiber microfiber leather of claim 1 wherein: the leather fabric comprises a base cloth (3) and is characterized by further comprising a layer of woven cloth (4), wherein the layer of woven cloth (4) is arranged between the leather fiber (1) and the base cloth (3), and the leather fiber (1) is simultaneously interpenetrated and clasped with the fiber of the woven cloth (4) and the fiber of the base cloth (3), so that the leather fiber (1), the woven cloth (4) and the base cloth (3) are fixedly connected.
3. A scalp-like composite dermis fiber microfiber leather according to claim 1 or 2, characterized in that: the base cloth (3) is a non-woven fabric, and the fibers of the base cloth are sea-island fibers.
4. A scalp-like composite dermal fiber microfiber leather according to claim 3 wherein: the sea-island fiber of the base cloth (3) is a superfine fiber which is defibrated after penetrating the glue (2), and a gap is formed between the superfine fiber and the glue (2).
5. The scalp-like composite dermal fiber microfiber leather of claim 4 wherein: the thickness of the glue (2) is one half to one third of the total thickness of the leather fiber (1) and the base cloth (3) after being fixedly connected.
6. The scalp-like composite dermal fiber microfiber leather of claim 5 wherein: the glue (2) is PU resin resistant to toluene extraction.
7. The scalp-like composite dermal fiber microfiber leather of claim 6 wherein: the length of the dermis fiber (1) is 3-8mm.
8. The scalp-like composite dermal fiber microfiber leather of claim 7 wherein: the sea-island fiber is toluene extraction type superfine indefinite island nylon/polyester fiber or PVA water-soluble sea-island fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224848.3U CN219820842U (en) | 2023-05-19 | 2023-05-19 | Composite leather fiber microfiber leather similar to cowhide of head layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224848.3U CN219820842U (en) | 2023-05-19 | 2023-05-19 | Composite leather fiber microfiber leather similar to cowhide of head layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219820842U true CN219820842U (en) | 2023-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321224848.3U Active CN219820842U (en) | 2023-05-19 | 2023-05-19 | Composite leather fiber microfiber leather similar to cowhide of head layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219820842U (en) |
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2023
- 2023-05-19 CN CN202321224848.3U patent/CN219820842U/en active Active
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