CN222201941U - High-strength waterproof PU synthetic leather - Google Patents
High-strength waterproof PU synthetic leather Download PDFInfo
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- CN222201941U CN222201941U CN202421016388.XU CN202421016388U CN222201941U CN 222201941 U CN222201941 U CN 222201941U CN 202421016388 U CN202421016388 U CN 202421016388U CN 222201941 U CN222201941 U CN 222201941U
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- 239000002649 leather substitute Substances 0.000 title claims abstract description 63
- 239000010410 layer Substances 0.000 claims abstract description 172
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 30
- 239000002344 surface layer Substances 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims description 91
- 238000010521 absorption reaction Methods 0.000 claims description 23
- 239000004744 fabric Substances 0.000 claims description 18
- 239000003063 flame retardant Substances 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 14
- 229920001778 nylon Polymers 0.000 claims description 6
- 239000002318 adhesion promoter Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
本实用新型公开了一种高强度防水PU合成革，属于合成革技术领域，合成革本体设置有PU面层、加强层和内层，PU面层、加强层和内层之间相互连接固定，PU面层包括PU层、助粘层和表面涂层，助粘层固定粘接在PU层的表面，表面涂层涂布在助粘层的表面，加强层包括防水层、第一抗拉层、第二抗拉层和连接筋，第一抗拉层和第二抗拉层通过连接筋连接一体，该高强度防水PU合成革，通过设置的加强层，不仅可以增加PU面层以及内层的抗拉强度，同时可以避免PU面层、加强层和内层之间分离，大大的提高了合成革的抗拉抗撕裂强度，并且通过设置的表面涂层和防水层，使得合成革具有双重防水的功能，同时可以增加PU面层表面的耐磨和阻燃性能。
The utility model discloses a high-strength waterproof PU synthetic leather, belonging to the technical field of synthetic leather. The synthetic leather body is provided with a PU surface layer, a reinforcement layer and an inner layer. The PU surface layer, the reinforcement layer and the inner layer are mutually connected and fixed. The PU surface layer comprises a PU layer, an adhesion-promoting layer and a surface coating. The adhesion-promoting layer is fixedly bonded to the surface of the PU layer, the surface coating is coated on the surface of the adhesion-promoting layer, the reinforcement layer comprises a waterproof layer, a first tensile layer, a second tensile layer and connecting ribs, the first tensile layer and the second tensile layer are connected as a whole through the connecting ribs. The high-strength waterproof PU synthetic leather can increase the tensile strength of the PU surface layer and the inner layer through the reinforcement layer, and can avoid separation between the PU surface layer, the reinforcement layer and the inner layer, thereby greatly improving the tensile and tearing strength of the synthetic leather. The surface coating and the waterproof layer are provided, so that the synthetic leather has a double waterproof function, and can increase the wear resistance and flame retardancy of the surface of the PU surface layer.
Description
Technical Field
The utility model relates to the technical field of synthetic leather, in particular to high-strength waterproof PU synthetic leather.
Background
The PU synthetic leather is polyurethane synthetic leather, the surface skin is polyurethane component, the back is cloth base, the leather has the advantages of good cold resistance, ventilation, washability, convenient processing, preferential price and the like, is widely applied to the decoration of bags, clothes, shoes, vehicles and furniture, has the advantages which are incomparable with the PVC synthetic leather, is a more ideal material for replacing natural leather, but the performance of the PU synthetic leather can not meet the use requirements of people along with the development of society.
For example, the flexible resistant PU synthetic leather of publication No. CN217047833U is disclosed, including first stretch-proofing cloth, PU synthetic leather basic unit, first reinforcing grafting cloth, second reinforcing grafting cloth and second PU surface course, the top of PU synthetic leather basic unit is provided with the second and strengthens the connecting cloth layer, and the bottom of PU synthetic leather basic unit is provided with first reinforcing connecting cloth layer, the both ends of PU synthetic leather basic unit all are provided with first stretch-proofing cloth, and the inside of first stretch-proofing cloth all evenly installs the stretch-proofing elastic cotton strip of third, the top of second reinforcing connecting cloth layer is provided with first PU surface course, and the top of first PU surface course is provided with first moisture absorption ventilative layer, first reinforcing grafting cloth is evenly installed to the bottom of first PU surface course, the top of second reinforcing connecting cloth layer evenly is provided with first spread groove, the bottom of first reinforcing connecting cloth layer is provided with second PU surface course, and the second reinforcing grafting cloth is evenly installed to the top of second PU surface course, the bottom of first reinforcing connecting cloth layer evenly is provided with the second spread groove.
According to the scheme disclosed by the above, although the bending resistance performance of the PU synthetic leather is improved, when the PU synthetic leather is pulled and torn by external force, the PU synthetic leather can possibly cause tearing and layering of the synthetic leather, the waterproof performance of the PU synthetic leather is insufficient, the service life of the synthetic leather is shortened, and meanwhile, the use requirements of people cannot be met.
Disclosure of utility model
Aiming at the problems in the prior art, the utility model aims to provide the high-strength waterproof PU synthetic leather, which can not only increase the tensile strength of a PU surface layer and an inner layer through the arranged reinforcing layer, but also avoid the separation among the PU surface layer, the reinforcing layer and the inner layer, greatly improve the tensile and tearing resistance of the synthetic leather, and the synthetic leather has double waterproof functions through the arranged surface coating and waterproof layer, and can also increase the wear resistance and flame retardance of the surface of the PU surface layer.
In order to solve the problems, the utility model adopts the following technical scheme.
The utility model provides a high strength waterproof PU synthetic leather, includes the synthetic leather body, the synthetic leather body is provided with PU surface course, enhancement layer and inlayer, interconnect is fixed between PU surface course, enhancement layer and the inlayer, the PU surface course includes PU layer, helps bonding layer and surface coating, helping bonding layer fixed bonding at the surface on PU layer, surface coating is helping the surface on bonding layer, the enhancement layer includes waterproof layer, first tensile layer, second tensile layer and tie bar, first tensile layer and second tensile layer are connected integratively through the tie bar, the tie bar is fixed to be compounded in waterproof layer, the inlayer includes moisture absorption layer, water conservancy diversion layer and flame retardant coating, mutual fixed connection between moisture absorption layer, water conservancy diversion layer and the flame retardant coating, this high strength waterproof PU synthetic leather through the enhancement layer that sets up, not only can increase the tensile strength of PU surface course and inlayer, can avoid the separation between PU surface course, enhancement layer and the inlayer simultaneously, great improvement the tensile strength of synthetic leather to through the surface coating and the waterproof layer that sets up, make the dual function of waterproof layer and fire-retardant surface can increase the fire-retardant performance of PU.
Further, the shape size of first tensile layer and second tensile layer is the same, first tensile layer and second tensile layer all adopt nylon fiber to weave and form, the splice bar adopts stranded nylon fiber to strand and forms, and first tensile layer, second tensile layer and splice bar can increase PU synthetic leather's mechanical strength, improves PU synthetic leather's tensile, resistance to compression and anti layering's performance.
Furthermore, the waterproof layer is made of polyurethane waterproof adhesive, and the two surfaces of the waterproof layer are fixedly adhered to the surfaces of the PU layer and the moisture absorption layer respectively, so that the waterproof performance of the PU synthetic leather can be improved.
Furthermore, the moisture absorption layer is made of a high polymer moisture absorption material, the guide layer is made of a long fiber material, and the thickness of the moisture absorption layer is larger than that of the guide layer, so that the PU synthetic leather clothing has the moisture absorption and sweat removal functions.
Furthermore, the surface of flame retardant coating is provided with the bleeder vent of equidistance distribution, the flame retardant coating adopts wear-resisting fire-retardant fabric to make, can increase the fire behavior of PU synthetic leather surface material inboard surface.
Furthermore, the surface coating is formed by coating the wear-resistant waterproof flame-retardant coating, so that the wear-resistant, waterproof and flame-retardant performances of the surface of the PU layer can be improved.
Furthermore, the adhesion promoter layer is formed by coating a PU adhesion promoter, so that the adhesive force of the surface coating on the surface of the PU layer can be increased.
Compared with the prior art, the utility model has the advantages that:
According to the scheme, through the reinforcing layer, the tensile strength of the PU surface layer and the inner layer can be increased, meanwhile, the separation among the PU surface layer, the reinforcing layer and the inner layer can be avoided, and the tensile tearing strength of the synthetic leather is greatly improved.
According to the scheme, the surface coating and the waterproof layer are arranged, so that the synthetic leather has a double waterproof function, and meanwhile, the wear resistance and the flame retardance of the surface of the PU surface layer can be improved.
Drawings
FIG. 1 is a perspective view of the overall structure of the present utility model;
FIG. 2 is a side view of the overall structure of the present utility model;
Fig. 3 is an enlarged view of a portion a of fig. 2;
Fig. 4 is a bottom view of the flame retardant layer structure of fig. 2.
The reference numerals in the figures illustrate:
1 PU surface layers, 11 PU layers, 12 adhesion-promoting layers, 13 surface coatings, 2 reinforcing layers, 21 waterproof layers, 22 first tensile layers, 23 second tensile layers, 24 connecting ribs, 3 inner layers, 31 moisture absorption layers, 32 diversion layers, 33 fireproof layers and 34 ventilation holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-4, a high strength waterproof PU synthetic leather, including the synthetic leather body, the synthetic leather body is provided with PU surface course 1, enhancement layer 2 and inlayer 3, PU surface course 1, interconnect is fixed between enhancement layer 2 and the inlayer 3, PU surface course 1 includes PU layer 11, help the bonding layer 12 and surface coating 13, help the bonding of bonding layer 12 at the surface of PU layer 11, surface coating 13 coats on helping the surface of bonding layer 12, another surface of PU surface course 1 also is equipped with helps the bonding coating, can increase PU surface course 1 and waterproof layer 21's bonding strength, enhancement layer 2 includes waterproof layer 21, first tensile layer 22, second tensile layer 23 and tie bar 24, first tensile layer 22 and second tensile layer 23 are connected integratively through tie bar 24, can increase PU synthetic leather length direction, width direction and thickness direction's tensile tear resistance, tie bar 24 are fixed to be compounded in waterproof layer 21, inlayer 3 includes moisture absorption layer 31, water conservancy diversion layer 32 and flame retardant layer 33, moisture absorption layer 31, moisture absorption layer 32 and moisture absorption layer 33 are fixed connection each other between the water conservancy diversion layer 32 and the flame retardant layer 33, moisture absorption layer 31 adopts the high-permeable layer 32 to make moisture absorption layer 32 to make the inside moisture absorption layer has the moisture absorption function and has the large-absorbing layer 32.
The shape size of the first tensile layer 22 is the same with that of the second tensile layer 23, the first tensile layer 22 and the second tensile layer 23 are both woven by nylon fibers, the connecting ribs 24 are formed by twisting a plurality of strands of nylon fibers, the mechanical strength of the PU synthetic leather can be increased by the first tensile layer 22, the second tensile layer 23 and the connecting ribs 24, the tensile, compression and delamination resistance of the PU synthetic leather are improved, the ventilation holes 34 distributed at equal intervals are formed in the surface of the fireproof layer 33, the fireproof layer 33 is made of wear-resistant flame-retardant fabrics, and the fireproof performance of the inner side surface of the PU synthetic leather fabric can be increased.
The waterproof layer 21 is made of polyurethane waterproof adhesive, two surfaces of the waterproof layer 21 are fixedly adhered to the surfaces of the PU layer 11 and the moisture absorption layer 31 respectively, so that the waterproof performance of PU synthetic leather can be improved, the surface coating 13 is formed by coating wear-resistant waterproof flame-retardant paint, the wear-resistant, waterproof and flame-retardant performances of the surface of the PU layer 11 can be improved, the adhesion promoting layer 12 is formed by coating PU adhesion promoter, and the adhesive force of the surface coating 13 on the surface of the PU layer 11 can be improved.
This high strength waterproof PU synthetic leather is when receiving length direction and width direction's external force to pull and tear, first tensile layer 22 and second tensile layer 23 can increase PU synthetic leather length direction and width direction's tensile strength, when PU synthetic leather receives thickness direction's external force to pull and tear, connecting rib 24 can increase PU synthetic leather thickness direction's tensile strength, can not layering between PU surface course 1, enhancement layer 2 and inlayer 3, through the enhancement layer 2 of setting, not only can increase PU surface course 1 and inlayer 3's tensile strength, separation between PU surface course 1 can be avoided simultaneously, enhancement layer 2 and inlayer 3, great improvement synthetic leather's tensile tear strength, and through surface coating 13 and waterproof layer 21 of setting, make synthetic leather have dual waterproof function, wear-resisting and the fire resistance that can increase PU surface course 1 surface simultaneously.
The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.
Claims (7)
1. The high-strength waterproof PU synthetic leather comprises a synthetic leather body, wherein the synthetic leather body is provided with a PU surface layer (1), a reinforcing layer (2) and an inner layer (3), and is characterized in that the PU surface layer (1), the reinforcing layer (2) and the inner layer (3) are fixedly connected with each other, the PU surface layer (1) comprises a PU layer (11), an adhesion-promoting layer (12) and a surface coating (13), the adhesion-promoting layer (12) is fixedly adhered to the surface of the PU layer (11), the surface coating (13) is coated on the surface of the adhesion-promoting layer (12), the reinforcing layer (2) comprises a waterproof layer (21), a first tensile layer (22), a second tensile layer (23) and a connecting rib (24), the first tensile layer (22) and the second tensile layer (23) are integrally connected through the connecting rib (24), the connecting rib (24) is fixedly compounded in the waterproof layer (21), the inner layer (3) comprises a moisture absorption layer (31), a diversion layer (32) and a fire-proof layer (33), and the diversion layer (31) are fixedly connected with each other.
2. The high-strength waterproof PU synthetic leather according to claim 1, wherein the first tensile layer (22) and the second tensile layer (23) are the same in shape and size, the first tensile layer (22) and the second tensile layer (23) are woven by nylon fibers, and the connecting ribs (24) are formed by twisting a plurality of strands of nylon fibers.
3. The high-strength waterproof PU synthetic leather according to claim 1, wherein the waterproof layer (21) is made of polyurethane waterproof adhesive, and two surfaces of the waterproof layer (21) are fixedly bonded with surfaces of the PU layer (11) and the moisture absorption layer (31) respectively.
4. The high-strength waterproof PU synthetic leather of claim 1, wherein the moisture absorption layer (31) is made of a high-molecular moisture absorption material, the diversion layer (32) is made of a long fiber material, and the thickness of the moisture absorption layer (31) is larger than that of the diversion layer (32).
5. The high-strength waterproof PU synthetic leather according to claim 1, wherein the surface of the fireproof layer (33) is provided with ventilation holes (34) distributed at equal intervals, and the fireproof layer (33) is made of wear-resistant flame-retardant fabric.
6. The high-strength waterproof PU synthetic leather according to claim 1, wherein the surface coating (13) is formed by coating wear-resistant waterproof flame-retardant paint.
7. The high-strength waterproof PU synthetic leather according to claim 1, wherein the adhesion promoter layer (12) is formed by coating a PU adhesion promoter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421016388.XU CN222201941U (en) | 2024-05-11 | 2024-05-11 | High-strength waterproof PU synthetic leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421016388.XU CN222201941U (en) | 2024-05-11 | 2024-05-11 | High-strength waterproof PU synthetic leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222201941U true CN222201941U (en) | 2024-12-20 |
Family
ID=93868641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421016388.XU Active CN222201941U (en) | 2024-05-11 | 2024-05-11 | High-strength waterproof PU synthetic leather |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222201941U (en) |
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2024
- 2024-05-11 CN CN202421016388.XU patent/CN222201941U/en active Active
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