CN114318883B - A method for making phantom line embossed leather - Google Patents
A method for making phantom line embossed leather Download PDFInfo
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- CN114318883B CN114318883B CN202111663011.4A CN202111663011A CN114318883B CN 114318883 B CN114318883 B CN 114318883B CN 202111663011 A CN202111663011 A CN 202111663011A CN 114318883 B CN114318883 B CN 114318883B
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- 239000010985 leather Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims description 10
- 238000004040 coloring Methods 0.000 claims abstract description 78
- 238000005507 spraying Methods 0.000 claims abstract description 53
- 238000004049 embossing Methods 0.000 claims abstract description 42
- 239000000853 adhesive Substances 0.000 claims abstract description 32
- 230000001070 adhesive effect Effects 0.000 claims abstract description 32
- 238000005498 polishing Methods 0.000 claims abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 14
- 239000002649 leather substitute Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 8
- 229920005749 polyurethane resin Polymers 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 239000004800 polyvinyl chloride Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000002203 pretreatment Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000007639 printing Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010409 ironing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
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- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention provides a manufacturing method of a multicolor line embossed leather, which comprises the following steps: (1) polishing the skin blank by using a polishing machine; (2) pretreating the polished leather blank, spraying an adhesive once, and rolling to polish once; (3) spraying tanning slurry on the pretreated leather blank, spraying once, tumbling once, repeating for three times, and tanning to obtain the nitro leather; (4) the nitro-skin is subjected to primary coloring of a color changing film; (5) secondary coloring with a multicolor film; (6) and embossing the leather subjected to secondary coloring by using an embossing machine to obtain the patterned leather with the magical color lines. The patterned leather with the magical color lines, which is manufactured by the invention, belongs to natural embossing, has high wear resistance, uneven surface and three-dimensional sense, can reflect light with different wavelengths under the irradiation of light rays, has the effect of capturing the light, enhances the adhesion degree of the color by spraying tanning materials for multiple times, prolongs the service life of leather, and also plays the role of enhancing the strength of the leather.
Description
Technical Field
The invention belongs to the field of leather making technology, and particularly relates to a manufacturing method of a multicolor line embossed leather.
Background
When the leather is surface pattern treated, the technological process mainly includes embossing, pattern ironing and printing. The embossed leather is made by applying a special pattern to leather by pressure. The pattern ironing process is to use various colors of gilding paper to be processed by hot pressing; the printing technology is to print patterns on the reverse suede of leather by using oily oil printing abrasive as sizing agent.
The three methods have certain requirements on leather, in particular to a pattern-ironing and printing process, the adopted gilding paper and printing ink are prepared from powder particles as main raw materials, after the gilding paper and printing ink are subjected to hot stamping or printing plates, color forms can only be generated on the surface of the leather, but the color forms can not be fused with the nature of the leather, and the pattern gradually disappears and cracks are generated after the gilding paper and the printing ink are folded and softened, so that the quality of a product is poor, and the service life is reduced.
Based on the technical reasons, the leather is pre-treated by adopting the embossing process, then tanned and then colored, and the tanned sizing agent used can be fused with the leather intrinsic fiber frame to permeate so that the treated leather is durable and wear-resistant, and the flower shape is unchanged after being folded and softened.
Disclosure of Invention
Based on the prior art, the invention aims to provide the manufacturing method of the patterned leather with the magical color lines, which has the advantages of high wear resistance, uneven surface and three-dimensional sense, can reflect light with different wavelengths under the irradiation of light rays, has the effect of capturing the light color, enhances the adhesion degree of the color by spraying the tanning material for multiple times, prolongs the service life of the leather, and also has the effect of enhancing the strength of the leather.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the manufacturing method of the magic color line embossed leather comprises the following steps:
(1) polishing the skin blank by using a polishing machine;
(2) pretreating the polished skin blank;
(3) spraying tanning slurry on the pretreated leather blank, and tanning the obtained nitro leather;
(4) the nitro-skin is subjected to primary coloring of a color changing film;
(5) secondary coloring with a multicolor film;
(6) and embossing the leather subjected to secondary coloring by using an embossing machine to obtain the patterned leather with the magical color lines.
In order to better realize the invention, the leather blank in the step (1) is polyvinyl chloride artificial leather or polyurethane artificial leather, and the polishing speed of the polishing machine is 0.5-1.5 m/min.
In order to better realize the invention, further, the skin blank is pretreated in the step (2), the pretreatment method comprises the steps of uniformly mixing an adhesive 5025 and water according to a proportion, uniformly spraying the mixture on the surface of the skin blank by a spraying machine, wherein the spraying temperature is 110-130 ℃, rolling the skin blank once after the spraying is finished, the conveying speed is 2-6 m/min, and cooling the skin blank to normal temperature, wherein the mass ratio of the adhesive to the water is 5025: water=100:100.
In order to better realize the invention, the tanning slurry in the step (3) comprises the following components in parts by mass: 90-110 parts of acrylic resin 527, 180-220 parts of polyurethane resin 317, 630-770 parts of foaming imitation resin 8523, 45-55 parts of white paint, 9-11 parts of adhesive Aku and 5-110 parts of adhesive 50290.
In order to better realize the invention, the tanning method in the step (3) is to uniformly mix tanning slurry according to a proportion, spray-coat the leather blank which is finished in the step (2) at the spraying temperature of 110-130 ℃, roll-polish after the spraying is finished, and cool to normal temperature after repeating for three times at the conveying speed of 2-6 m/min.
In order to better realize the invention, the color changing film used in the step (4) for one time is NP003R-020, the coloring temperature is 140-150 ℃, the coloring pressure is 0.5-0.7 MPa, the oil pressure of a coloring machine is 0.2-0.4 MPa, the speed of a drying roller is 2-6 m/min, the roller is polished once, and the roller is left for 4-6 hours for natural cooling.
In order to better realize the invention, the multicolor film used in the step (5) is EA-005, the coloring temperature is 135-145 ℃, the coloring pressure is 0.5-0.7 MPa, the oil pressure of a coloring machine is 0.2-0.4 MPa, the speed of a drying roller is 2-6 m/min, the roller is polished once, and the roller is left for 4-6 h for natural cooling.
In order to better realize the invention, the embossing temperature in the step (6) is 80-90 ℃, the pressure is 12-15 MPa, the pressure is maintained for 4-10 s, the number of the pressing plate is XJ-Strip, the embossing is performed once, and the embossing is naturally cooled to normal temperature after the embossing is completed.
Advantageous effects
The beneficial effects of the invention are as follows:
(1) The leather is pre-treated, tanned and then colored, and the tanned sizing agent can be dissolved and permeated with the leather essential fiber frame, so that the treated leather is durable and wear-resistant, and the flower shape is unchanged after being folded and softened.
(2) The embossing process is adopted, the secondary color painting is carried out at high temperature, the adhesion degree of the color is enhanced, the service life of the leather is prolonged, and the effect of enhancing the strength of the leather can be achieved.
(3) The tanning slurry disclosed by the invention is prepared from acrylic resin 527, polyurethane resin 317, foaming complementary imitation resin 8523, white paint, adhesive Aku and adhesive 5025, has good elastic property, is not easy to break, has good extensibility, is not easy to exude in a finished product after being used, does not have side reaction with other materials, is nontoxic and harmless after being used for a long time, and has small influence on environmental pollution.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
The embodiment provides a manufacturing method of a multicolor line embossed skin, which comprises the following steps:
(1) polishing the skin blank by using a polishing machine: the leather blank is polyvinyl chloride artificial leather or polyurethane artificial leather, and the polishing speed of the polishing machine is 0.5m/min;
(2) pretreating the polished leather blank: the pretreatment method comprises the steps of uniformly mixing an adhesive 5025 and water according to a proportion, uniformly spraying the mixture on the surface of a leather blank by using a spraying machine, wherein the spraying temperature is 110 ℃, performing roll finishing once after the spraying is finished, the conveying speed is 2m/min, and cooling to normal temperature, wherein the mass ratio of the adhesive to the water is 5025: water = 100:100;
(3) the pretreated leather blank is sprayed with tanning slurry, and the tanning slurry comprises the following components in parts by mass: uniformly mixing 527 parts of acrylic resin 527, 317 180 parts of polyurethane resin, 8523 630 parts of foaming imitation resin, 45 parts of white paint, 9 parts of adhesive Aku and 5025 90 parts of adhesive, spraying the leather blank subjected to the step (2) at 110 ℃, rolling after spraying, enabling the conveying speed to be 2m/min, repeating for three times, cooling to normal temperature, and tanning to obtain the nitro leather:
(4) the nitro-coating is subjected to primary coloring of the color changing film: the color changing film used for coloring is NP003R-020, the coloring temperature is 140 ℃, the coloring pressure is 0.7MPa, the oil pressure of a coloring machine is 0.4MPa, the speed of a drying roller is 2m/min, the roller is polished once, and the roller is left for 6h for natural cooling;
(5) secondary coloring with a multicolor film: the multicolor film used for secondary coloring is EA-005, the coloring temperature is 135 ℃, the coloring pressure is 0.7MPa, the oil pressure of a coloring machine is 0.4MPa, the speed of a drying roller is 2m/min, the roller is polished once, and the roller is left stand for 6h for natural cooling.
(6) Embossing by an embossing machine for leather with secondary coloring: the embossing temperature is 80 ℃, the pressure is 15MPa, the pressure is maintained for 10s, the number of the pressing plate is XJ-Strip, the embossing is carried out once, and the product is naturally cooled to normal temperature after the embossing is finished, so that the multicolor line embossed skin is obtained.
Example 2
The embodiment provides a manufacturing method of a multicolor line embossed skin, which comprises the following steps:
(1) polishing the skin blank by using a polishing machine: the leather blank is polyvinyl chloride artificial leather or polyurethane artificial leather, and the polishing speed of the polishing machine is 0.9m/min;
(2) pretreating the polished leather blank: the pretreatment method comprises the steps of uniformly mixing an adhesive 5025 and water according to a proportion, uniformly spraying the mixture on the surface of a leather blank by using a spraying machine, wherein the spraying temperature is 120 ℃, performing roll finishing once after the spraying is finished, the conveying speed is 3m/min, and cooling to normal temperature, wherein the mass ratio of the adhesive to the water is 5025: water = 100:100;
(3) the pretreated leather blank is sprayed with tanning slurry, and the tanning slurry comprises the following components in parts by mass: the method comprises the steps of uniformly mixing the tanning slurry according to a proportion by weight of 527 parts of acrylic resin, 317 190 parts of polyurethane resin, 8523 680 parts of foaming imitation resin, 48 parts of white paint, 9 parts of adhesive Aku and 5025 95 parts of adhesive, spraying the leather blank finished in the step (2) at the spraying temperature of 115 ℃, carrying out roll finishing after the spraying is finished, enabling the conveying speed to be 3m/min, repeating the steps for three times, cooling to normal temperature, and tanning to obtain the nitro leather:
(4) the nitro-coating is subjected to primary coloring of the color changing film: the color changing film used for coloring is NP003R-020, the coloring temperature is 142 ℃, the coloring pressure is 0.7MPa, the oil pressure of a coloring machine is 0.4MPa, the speed of a drying roller is 3m/min, the roller is polished once, and the roller is left for 6h for natural cooling;
(5) secondary coloring with a multicolor film: the multicolor film used for secondary coloring is EA-005, the coloring temperature is 138 ℃, the coloring pressure is 0.7MPa, the oil pressure of a coloring machine is 0.4MPa, the speed of a drying roller is 3m/min, the roller is polished once, and the roller is left stand for 6h for natural cooling.
(6) Embossing by an embossing machine for leather with secondary coloring: the embossing temperature is 85 ℃, the pressure is 14MPa, the pressure is maintained for 10s, the number of the pressing plate is XJ-Strip, the embossing is carried out once, and the color-changing wire embossed skin is obtained after the natural cooling to the normal temperature after the embossing is finished.
Example 3
The embodiment provides a manufacturing method of a multicolor line embossed skin, which comprises the following steps:
(1) polishing the skin blank by using a polishing machine: the leather blank is polyvinyl chloride artificial leather or polyurethane artificial leather, and the polishing speed of the polishing machine is 1.0m/min;
(2) pretreating the polished leather blank: the pretreatment method comprises the steps of uniformly mixing an adhesive 5025 and water according to a proportion, uniformly spraying the mixture on the surface of a leather blank by using a spraying machine, wherein the spraying temperature is 120 ℃, performing roll finishing once after the spraying is finished, the conveying speed is 3m/min, and cooling to normal temperature, wherein the mass ratio of the adhesive to the water is 5025: water = 100:100;
(3) the pretreated leather blank is sprayed with tanning slurry, and the tanning slurry comprises the following components in parts by mass: 527 100 parts of acrylic resin, 317 200 parts of polyurethane resin, 8523 700 parts of foaming imitation resin, 50 parts of white paint, 10 parts of adhesive Aku and 5025 100 parts of adhesive, uniformly mixing tanning slurry according to a proportion, spraying the leather blank finished in the step (2) at the spraying temperature of 120 ℃, carrying out roll finishing after the spraying is finished, cooling to normal temperature after repeating for three times, and tanning to obtain the nitro leather:
(4) the nitro-coating is subjected to primary coloring of the color changing film: the color changing film used for coloring is NP003R-020, the coloring temperature is 145 ℃, the coloring pressure is 0.6MPa, the oil pressure of a coloring machine is 0.3MPa, the speed of a drying roller is 4m/min, the roller is polished once, and the roller is left for 5h for natural cooling;
(5) secondary coloring with a multicolor film: the multicolor film used in the secondary coloring is EA-005, the coloring temperature is 140 ℃, the coloring pressure is 0.6MPa, the oil pressure of a coloring machine is 0.3MPa, the speed of a drying roller is 4m/min, the roller is polished once, and the roller is left stand for 5h for natural cooling.
(6) Embossing by an embossing machine for leather with secondary coloring: the embossing temperature is 85 ℃, the pressure is 13MPa, the pressure is maintained for 8s, the number of the pressing plate is XJ-Strip, the embossing is carried out once, and the color-changing wire embossed skin is obtained after the natural cooling to the normal temperature after the embossing is finished.
Example 4
The embodiment provides a manufacturing method of a multicolor line embossed skin, which comprises the following steps:
(1) polishing the skin blank by using a polishing machine: the leather blank is polyvinyl chloride artificial leather or polyurethane artificial leather, and the polishing speed of the polishing machine is 1.2m/min;
(2) pretreating the polished leather blank: the pretreatment method comprises the steps of uniformly mixing an adhesive 5025 and water according to a proportion, uniformly spraying the mixture on the surface of a leather blank by using a spraying machine, wherein the spraying temperature is 125 ℃, performing roll finishing once after the spraying is finished, and cooling to normal temperature, wherein the mass ratio of the adhesive to the water is 5025: water = 100:100;
(3) the pretreated leather blank is sprayed with tanning slurry, and the tanning slurry comprises the following components in parts by mass: 527 105 parts of acrylic resin, 317 210 parts of polyurethane resin, 8523 730 parts of foaming imitation resin, 53 parts of white paint, 10 parts of adhesive Aku and 5025 105 parts of adhesive, uniformly mixing tanning slurry according to a proportion, spraying the leather blank finished in the step (2) at the spraying temperature of 125 ℃, carrying out roll finishing after the spraying is finished, enabling the conveying speed to be 5m/min, cooling to normal temperature after repeating for three times, and tanning to obtain the nitro leather:
(4) the nitro-coating is subjected to primary coloring of the color changing film: the color changing film used for coloring is NP003R-020, the coloring temperature is 148 ℃, the coloring pressure is 0.6MPa, the oil pressure of a coloring machine is 0.3MPa, the speed of a drying roller is 5m/min, the roller is polished once, and the roller is left for 5h for natural cooling;
(5) secondary coloring with a multicolor film: the multicolor film used for secondary coloring is EA-005, the coloring temperature is 142 ℃, the coloring pressure is 0.6MPa, the oil pressure of a coloring machine is 0.3MPa, the speed of a drying roller is 5m/min, the roller is polished once, and the roller is left stand for 5h for natural cooling.
(6) Embossing by an embossing machine for leather with secondary coloring: the embossing temperature is 88 ℃, the pressure is 13MPa, the pressure is maintained for 6s, the number of the pressing plate is XJ-Strip, the embossing is carried out once, and the color-changing wire embossed skin is obtained after the natural cooling to the normal temperature after the embossing is finished.
Example 5
The embodiment provides a manufacturing method of a multicolor line embossed skin, which comprises the following steps:
(1) polishing the skin blank by using a polishing machine: the leather blank is polyvinyl chloride artificial leather or polyurethane artificial leather, and the polishing speed of the polishing machine is 1.5m/min;
(2) pretreating the polished leather blank: the pretreatment method comprises the steps of uniformly mixing an adhesive 5025 and water according to a proportion, uniformly spraying the mixture on the surface of a leather blank by using a spraying machine, wherein the spraying temperature is 130 ℃, performing roll finishing once after the spraying is finished, the conveying speed is 6m/min, and cooling to normal temperature, wherein the mass ratio of the adhesive to the water is 5025: water = 100:100;
(3) the pretreated leather blank is sprayed with tanning slurry, and the tanning slurry comprises the following components in parts by mass: 527 110 parts of acrylic resin, 317 220 parts of polyurethane resin, 8523 770 parts of foaming imitation resin, 55 parts of white paint, 11 parts of adhesive Aku, 5025 110 parts of adhesive, uniformly mixing tanning slurry according to a proportion, spraying the leather blank finished in the step (2) at the spraying temperature of 130 ℃, carrying out roll finishing after the spraying is finished, enabling the conveying speed to be 6m/min, cooling to normal temperature after repeating for three times, and tanning to obtain the nitro leather:
(4) the nitro-coating is subjected to primary coloring of the color changing film: the color changing film used for coloring is NP003R-020, the coloring temperature is 150 ℃, the coloring pressure is 0.5MPa, the oil pressure of a coloring machine is 0.2MPa, the speed of a drying roller is 6m/min, the roller is polished once, and the roller is left for 4h for natural cooling;
(5) secondary coloring with a multicolor film: the color-changing film used for secondary coloring is EA-005, the coloring temperature is 145 ℃, the coloring pressure is 0.5MPa, the oil pressure of a coloring machine is 0.2MPa, the speed of a drying roller is 6m/min, the roller is polished once, and the roller is left stand for 4h for natural cooling.
(6) Embossing by an embossing machine for leather with secondary coloring: the embossing temperature is 90 ℃, the pressure is 12MPa, the pressure is maintained for 4s, the number of the pressing plate is XJ-Strip, the embossing is carried out once, and the color-changing wire embossed skin is obtained after the natural cooling to the normal temperature after the embossing is finished.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The manufacturing method of the magic color line embossed leather is characterized by comprising the following steps of:
(1) polishing the skin blank by using a polishing machine;
(2) pretreating the polished skin blank;
(3) spraying tanning slurry on the pretreated leather blank, and tanning the obtained nitro leather;
(4) the nitro-skin is subjected to primary coloring of a color changing film;
(5) secondary coloring with a multicolor film;
(6) embossing the leather with secondary coloring by using an embossing machine to obtain the patterned leather with the magical color lines;
the leather blank in the step (1) is polyvinyl chloride artificial leather or polyurethane artificial leather, and the polishing speed of a polishing machine is 0.5-1.5 m/min;
in the step (2), the skin blank is pretreated, the pretreatment method comprises the steps of uniformly mixing an adhesive 5025 and water according to a proportion, uniformly spraying the mixture on the surface of the skin blank by using a spraying machine, wherein the spraying temperature is 110-130 ℃, rolling and polishing are carried out once after the spraying is finished, the conveying speed is 2-6 m/min, and cooling to normal temperature, wherein the mass ratio of the adhesive to the water is the adhesive 5025: water = 100:100;
the tanning slurry comprises the following components in parts by mass: 90-110 parts of acrylic resin 527, 180-220 parts of polyurethane resin 317, 630-770 parts of foaming imitation resin 8523, 45-55 parts of white paint, 9-11 parts of adhesive Aku and 5-110 parts of adhesive 50290;
the tanning method in the step (3) comprises the steps of uniformly mixing tanning slurry according to a proportion, spraying the leather blank after the step (2) is completed at 110-130 ℃, carrying out roll finishing after the spraying is completed, and cooling to normal temperature after repeating for three times at the conveying speed of 2-6 m/min;
the color changing film used in the step (4) for one-time coloring is NP003R-020, the coloring temperature is 140-150 ℃, the coloring pressure is 0.5-0.7 MPa, the oil pressure of a coloring machine is 0.2-0.4 MPa, the speed of a drying roller is 2-6 m/min, the roller is polished once, and the roller is kept stand for 4-6 h and naturally cooled;
the multicolor film used in the secondary coloring is EA-005, the coloring temperature is 135-145 ℃, the coloring pressure is 0.5-0.7 MPa, the oil pressure of a coloring machine is 0.2-0.4 MPa, the speed of a drying roller is 2-6 m/min, the roller is polished once, and the roller is kept stand for 4-6 h and naturally cooled;
and (3) embossing in the step (6) at the temperature of 80-90 ℃, under the pressure of 12-15 MPa, for 4-10 s, wherein the number of the pressing plate is XJ-Strip, embossing is performed once, and natural cooling is performed to normal temperature after embossing is completed.
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| CN202111663011.4A CN114318883B (en) | 2021-12-31 | 2021-12-31 | A method for making phantom line embossed leather |
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| Title |
|---|
| 无铬鞣剂的研究现状与进展（续）;薛思怡，王学川等;《中国皮革》;第50卷(第9期);15-21 * |
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| CN114318883A (en) | 2022-04-12 |
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Denomination of invention: A method for making embossed leather with iridescent lines Granted publication date: 20231010 Pledgee: Quanzhou Bank Co.,Ltd. Zhangpu Branch Pledgor: ZHANGZHOU XIANGZHOU LEATHER Co.,Ltd. Registration number: Y2024980033393 |
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