CN216782982U - Environment-friendly flexible polyurethane synthetic leather - Google Patents
Environment-friendly flexible polyurethane synthetic leather Download PDFInfo
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- CN216782982U CN216782982U CN202220027951.8U CN202220027951U CN216782982U CN 216782982 U CN216782982 U CN 216782982U CN 202220027951 U CN202220027951 U CN 202220027951U CN 216782982 U CN216782982 U CN 216782982U
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Abstract
The utility model is suitable for the technical field of artificial leather, and relates to environment-friendly flexible polyurethane synthetic leather which comprises an outer leather layer, wherein the upper surface of the outer leather layer is provided with a hydrophobic structured pattern, the outer surface of the outer leather layer is plated with a plurality of oil-wax film layers, the surface of the outermost oil-wax film layer is coated with a fire retardant, a water-based polyurethane adhesive layer is arranged between the outer leather layer and the inner leather layer, the interior of the water-based polyurethane adhesive layer does not contain methyl formamide, toluene and methyl ethyl ketone, the leather is environment-friendly, safe and pollution-free, a temperature-isolating cavity is formed in the inner leather layer, the temperature-isolating cavity is oval, the side surface of the temperature-isolating cavity is provided with a pulling-resistant filling hole, the oval temperature-isolating cavity is formed in the leather, so that the cost of raw materials can be reduced, the internal temperature of the leather can be effectively kept, the hydrophobic structured pattern is arranged on the outer surface of the leather, the moisture can be effectively guided to volatilize, and the leather not only has better waterproofness and warmth, and the use of raw materials is reduced.
Description
Technical Field
The utility model is suitable for the technical field of artificial leather, and particularly relates to environment-friendly flexible polyurethane synthetic leather.
Background
At present, the production and use of synthetic leather have been known for many years and are generally classified into two main categories according to the raw materials: synthetic leather of polyvinyl chloride (PVC) and synthetic leather of Polyurethane (PU). The polyurethane synthetic leather has the characteristics which are most similar to those of natural leather by adjusting raw materials and processes, and has the advantages of durability, good texture, good air permeability and the like, so the polyurethane synthetic leather is more extensive than polyvinyl chloride synthetic leather. The polyurethane synthetic leather can be generally classified into dry synthetic leather and wet synthetic leather according to the difference of the manufacturing method. The dry synthetic leather is lighter and more like real leather than the polyvinyl chloride synthetic leather, and does not go moldy, but has the big defect of being less fleshy and therefore poorer in touch, so that the dry synthetic leather is usually attached to the wet synthetic leather again to make the flesh thereof full. The wet synthetic leather is made up by using "wet process" and adopting the process of impregnating base cloth (cloth) in PU resin compounding liquor, then making PU resin coating, wet coagulation, water washing (in the tank body containing dimethyl formamide DMF solvent) and baking in oven so as to make the resin attached to the base cloth be cured and solidified so as to obtain the invented wet synthetic leather. The common polyurethane synthetic leather is formed by adhering wet synthetic leather and dry synthetic leather by using an adhesive. Because the wet synthetic leather is washed with DMF solvent in the manufacturing process, DMF is a toxic chemical agent, can be dissolved in water to cause water pollution and can cause harm to human health, and the market needs an environment-friendly flexible polyurethane synthetic leather.
SUMMERY OF THE UTILITY MODEL
The utility model provides environment-friendly flexible polyurethane synthetic leather, and aims to solve the problem that the polyurethane synthetic leather is not environment-friendly.
The utility model is realized in such a way, the environment-friendly flexible polyurethane synthetic leather comprises an outer leather layer, the upper surface of the outer leather layer is provided with a hydrophobic structured pattern, the outer surface of the outer leather layer is plated with a plurality of oil wax film layers, the surface of the outermost oil wax film layer is coated with a fire retardant, a waterborne polyurethane adhesive layer is arranged between the outer leather layer and the inner leather layer, the waterborne polyurethane adhesive layer does not contain methyl formamide, toluene and methyl ethyl ketone, a temperature-insulating cavity is arranged inside the inner leather layer, the temperature-insulating cavity is oval, and the side surface of the temperature-insulating cavity is provided with a pulling-resistant filling hole.
Furthermore, the side surface of the main hydrophobic main channel of the hydrophobic structured pattern is provided with an auxiliary hydrophobic main channel, and the auxiliary hydrophobic main channel and the main hydrophobic main channel form an angle of ninety degrees.
Furthermore, the height of the auxiliary hydrophobic main road close to the main hydrophobic main road is higher than the height far away from the main hydrophobic main road.
Furthermore, the surface of the outer leather layer is provided with a sterilization air hole which is round, and the lower side of the outer leather layer is provided with a waterproof and breathable nano film.
Furthermore, the upper surface of the inner leather layer is provided with a groove, and the groove can increase the bonding area of the inner leather layer and the outer leather layer.
Furthermore, the anti-pulling filling hole of the inner leather layer is square, and a limiting hollow cylindrical block is arranged inside the anti-pulling filling hole.
Furthermore, an environment-friendly adhesive is arranged between the limiting hollow cylindrical blocks.
Furthermore, main fiber yarns are arranged inside the limiting hollow cylindrical block, auxiliary fiber yarns are circumferentially arrayed around the main fiber yarns, and the main fiber yarns and the auxiliary fiber yarns are soft in texture.
The beneficial technical effects related to the implementation of the utility model are as follows: the leather is internally provided with the oval heat insulation cavity, so that the cost of raw materials can be reduced, the internal temperature of the leather can be effectively kept, the hydrophobic structural pattern is arranged on the outer surface of the leather, the water volatilization can be effectively guided, and the leather not only has better waterproofness and heat retention, but also reduces the use of the raw materials.
Drawings
FIG. 1 is a structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is an elevational view of the present invention with respect to an inner leather layer;
FIG. 5 is an enlarged partial view of A of FIG. 1;
fig. 6 is a partially enlarged view of B in fig. 2.
In the figure: 1. an outer leather layer; 2. a hydrophobic structured pattern; 3. an inner leather layer; 4. a water-based polyurethane adhesive layer; 5. a thermal insulation cavity; 6. pulling-resistant filling holes; 7. a main drainage trunk; 8. a secondary drainage trunk; 9. sterilizing the air holes; 10. a waterproof breathable nanofilm; 11. a groove; 12. limiting the hollow cylindrical block; 13. a main fiber filament; 14. secondary fiber filaments; 15. an environment-friendly adhesive.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1-6, the utility model relates to an environment-friendly flexible polyurethane synthetic leather, which comprises an outer leather layer 1, wherein a hydrophobic structured pattern 2 is arranged on the upper surface of the outer leather layer 1, a plurality of oil wax film layers are plated on the outer surface of the outer leather layer 1, a flame retardant is coated on the surface of the outermost oil wax film layer, a water-based polyurethane adhesive layer 4 is arranged between the outer leather layer 1 and the inner leather layer 3, the inside of the water-based polyurethane adhesive layer 4 does not contain methylformamide, methylbenzene and methyl ethyl ketone, a temperature insulation cavity 5 is formed inside the inner leather layer 3, the temperature insulation cavity 5 is oval, and the side surface of the temperature insulation cavity 5 is provided with a pulling-resistant filling hole 6.
An auxiliary hydrophobic main channel 8 is arranged on the side face of the main hydrophobic main channel 7 of the hydrophobic structured pattern 2, and the auxiliary hydrophobic main channel 8 and the main hydrophobic main channel 7 form a ninety degree angle.
The height of the auxiliary hydrophobic trunk road 8 close to the main hydrophobic trunk road 7 is higher than that of the auxiliary hydrophobic trunk road far from the main hydrophobic trunk road 7, and the hydrophobic structured pattern 2 can effectively utilize gravitational potential energy to increase the volatilization area of moisture in the process of flowing the moisture from top to bottom.
The surface of the outer leather layer 1 is provided with a sterilization air hole 9, the sterilization air hole 9 is circular, the lower side of the outer leather layer 1 is provided with a waterproof breathable nano-film 10, and the waterproof breathable nano-film 10 can effectively prevent water from entering the inner leather layer.
The upper surface of the inner leather layer 3 is provided with a groove 11, and the groove 11 can increase the bonding area between the inner leather layer 3 and the outer leather layer 1.
The anti-pulling filling hole 6 of the inner leather layer is square, and a limiting hollow cylindrical block 12 is arranged inside the anti-pulling filling hole 6.
An environment-friendly adhesive 15 is arranged between the limiting hollow cylindrical blocks 12.
The inside of the limiting hollow cylindrical block 12 is provided with a main fiber 13, the periphery of the main fiber 13 is circumferentially arrayed with an auxiliary fiber 14, and the main fiber 13 and the auxiliary fiber 14 are soft.
Example one
In the first embodiment, referring to fig. 1 to 6, a hydrophobic structured pattern 2 is disposed on an upper surface of an outer leather layer 1, an auxiliary hydrophobic trunk 8 is disposed on a side surface of a main hydrophobic trunk 7 of the hydrophobic structured pattern 2, the auxiliary hydrophobic trunk 8 forms an ninety degree angle with the main hydrophobic trunk 7, the auxiliary hydrophobic trunk 8 is higher than the main hydrophobic trunk 7, the hydrophobic structured pattern 2 can effectively utilize gravitational potential energy to increase the water volatilization area in the water flow from top to bottom, a plurality of oil wax film layers are plated on an outer surface of the outer leather layer 1, a fire retardant is coated on an outermost oil wax film layer, an aqueous polyurethane adhesive layer 4 is disposed between the outer leather layer 1 and the inner leather layer 3, the aqueous polyurethane adhesive layer 4 does not contain methyl formamide, toluene or methyl ethyl ketone therein, is environmentally friendly and safe and pollution-free, a thermal insulation cavity 5 is formed inside the inner leather layer 3, the heat insulation cavity 5 can reduce the use of materials and can provide a good heat insulation effect, the heat insulation cavity 5 is oval, and the side surface of the heat insulation cavity 5 is provided with a pulling-resistant filling hole 6.
Example two
In this embodiment two, refer to fig. 1-6, in the in-service use, it has the bleeder vent 9 of disinfecting to set up through outer leather layer 1 surface, under the shining of sunshine, can effectually kill multiple bacterium, possess multiple functions such as formaldehyde removal, deodorization, anti-soil, air-purifying, this leather has set up waterproof ventilative nanomembrane 10, can effectively avoid moisture to get into inner leather layer 3, and inner leather layer 3 upper surface is equipped with recess 11, recess 11 can increase the bonding area of inner leather layer 3 and outer leather layer 1, it is more firm to make inner leather layer 3 and outer leather layer 1 bond, when the leather receives the pulling, the inside main cellosilk 13 of spacing hollow cylinder piece 12, vice cellosilk 14 can bear the pulling power, increase the coefficient of tension of leather.
The beneficial technical effects related to the implementation of the utility model are as follows: the leather is internally provided with the oval heat insulation cavity, so that the cost of raw materials can be reduced, the internal temperature of the leather can be effectively kept, the hydrophobic structural pattern is arranged on the outer surface of the leather, the water volatilization can be effectively guided, and the leather not only has better waterproofness and heat retention, but also reduces the use of the raw materials.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a flexible polyurethane synthetic leather of environment-friendly, its characterized in that, includes outer leather layer (1), outer leather layer (1) upper surface is equipped with hydrophobic structure ization pattern (2), multilayer oily wax rete has been plated to outer leather layer (1) surface, outermost oily wax rete surface coating fire retardant, be equipped with waterborne polyurethane adhesive linkage (4) between outer leather layer (1) and inner leather layer (3), inside methylformamide, toluene, the methyl ethyl ketone of not containing of waterborne polyurethane adhesive linkage (4), inside the opening of inner leather layer (3) has temperature-isolating cavity (5), temperature-isolating cavity (5) are oval, temperature-isolating cavity (5) side is opened there is the stretching-resistant filling hole (6).
2. An environment-friendly flexible polyurethane synthetic leather according to claim 1, wherein the side of the main hydrophobic main channel (7) of the hydrophobic structured pattern (2) is provided with an auxiliary hydrophobic main channel (8), and the auxiliary hydrophobic main channel (8) and the main hydrophobic main channel (7) form an angle of ninety degrees.
3. An environment-friendly flexible polyurethane synthetic leather according to claim 2, wherein the height of the secondary hydrophobic main channel (8) close to the primary hydrophobic main channel (7) is higher than the height far away from the primary hydrophobic main channel (7).
4. The environment-friendly flexible polyurethane synthetic leather according to claim 1, wherein the surface of the outer leather layer (1) is provided with sterilization ventilation holes (9), the sterilization ventilation holes (9) are circular, and the lower side of the outer leather layer (1) is provided with a waterproof ventilation nano-film (10).
5. An environment-friendly flexible polyurethane synthetic leather according to claim 1, wherein the upper surface of the inner leather layer (3) is provided with a groove (11), and the groove (11) can increase the bonding area between the inner leather layer (3) and the outer leather layer (1).
6. The environment-friendly flexible polyurethane synthetic leather according to claim 1, wherein the pulling-resistant filling hole (6) of the inner leather layer is square, and a limiting hollow cylindrical block (12) is arranged inside the pulling-resistant filling hole (6).
7. An environment-friendly flexible polyurethane synthetic leather according to claim 6, wherein an environment-friendly adhesive (15) is arranged between the limiting hollow cylindrical blocks (12).
8. An environment-friendly flexible polyurethane synthetic leather according to claim 7, wherein a main fiber (13) is arranged inside the limiting hollow cylindrical block (12), secondary fiber (14) is arrayed around the circumference of the main fiber (13), and the main fiber (13) and the secondary fiber (14) are soft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220027951.8U CN216782982U (en) | 2022-01-06 | 2022-01-06 | Environment-friendly flexible polyurethane synthetic leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220027951.8U CN216782982U (en) | 2022-01-06 | 2022-01-06 | Environment-friendly flexible polyurethane synthetic leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216782982U true CN216782982U (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220027951.8U Active CN216782982U (en) | 2022-01-06 | 2022-01-06 | Environment-friendly flexible polyurethane synthetic leather |
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| Country | Link |
|---|---|
| CN (1) | CN216782982U (en) |
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2022
- 2022-01-06 CN CN202220027951.8U patent/CN216782982U/en active Active
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