CN112725545A - Coating processing technology of imitation oil-ground sanded leather - Google Patents
Coating processing technology of imitation oil-ground sanded leather Download PDFInfo
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- CN112725545A CN112725545A CN202011436060.XA CN202011436060A CN112725545A CN 112725545 A CN112725545 A CN 112725545A CN 202011436060 A CN202011436060 A CN 202011436060A CN 112725545 A CN112725545 A CN 112725545A
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/26—Leather tensioning or stretching frames; Stretching-machines; Setting-out boards; Pasting boards
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/40—Softening or making skins or leather supple, e.g. by staking, boarding, or crippling machines, by dry mills
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/46—Fluffing, buffing, or sanding
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/58—Drying
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a finishing processing technology of imitation oil-buffed leather, which comprises the following steps: drying and finishing crust leather → rolling grease → standing → sand ironing roller → pre-bottom coating → ironing roller → middle coating → top coating → standing → ironing roller → ironing hole roller → ironing roller → surface treatment → finished leather, wherein the grease used in the working procedure of rolling grease consists of 125 parts of water 100-; the finished leather has the advantages that the finished leather has frosted touch feeling, is strong in greasiness, good in ventilation and perspiration property, soft and plump, and more highlights the comfortable and natural leather feeling and excellent sanitary performance of natural leather, and the manufactured leather products such as shoes, boots, bags, sofas and the like are attractive, atmosphere and noble, and belong to fine products in leather products; meanwhile, the color fastness to rubbing is excellent, and the performances of dry rubbing resistance, wet rubbing resistance and sweat rubbing resistance can reach more than 4 grades.
Description
Technical Field
The invention relates to the technical field of leather-making chemistry and engineering, in particular to a finishing processing technology of oil-grinding-simulated sanded leather.
Background
The buffed leather is a high-grade leather product, but because the quality requirement on the raw leather is higher, and the buffing procedure is limited by the quality, the model and the technical degree of buffing, the leather loss and the waste of the leather to a certain degree are often caused. The buffed leather is imitated, namely, a specific leather coating chemical material is coated on the surface of crust leather, and then the buffed leather achieves the effect similar to the effect of sanding and raising by using a sandcloth through high-temperature mechanical action such as ironing; the oil-imitation buffed leather is evolved from the oil-imitation buffed leather, and not only is the finished leather required to have a buffed touch feeling, but also the finished leather needs to have a strong oil-lubrication touch feeling. The prior oil-imitating buffed leather mostly adopts solvent-type grease for endowing the finished leather with lasting oil-moistening touch feeling, and has the defects of low operability, safety and environmental protection.
Disclosure of Invention
The embodiment of the application provides a finishing processing technology of the oil-imitation buffed leather, solves the technical problems that solvent type grease is low in operability, safety and environmental friendliness when the oil-imitation buffed leather is prepared in the prior art, realizes compounding of mixed emulsion of sulfated synthetic grease and phospholipid with chlorinated paraffin, enables emulsion particles after compounding to be uniform, coats the emulsion particles on the surface of crust leather, promotes uniform distribution of grease in leather and on the surface of leather through high-temperature ironing, and endows finished leather with lasting oily feeling.
The embodiment of the application provides a finishing processing technology of oil-imitating buffed leather, which comprises the following steps: drying and finishing crust leather → roller coating grease → standing → sand ironing roller → pre-bottom coating → ironing roller → middle coating → top coating → standing → ironing roller → hair ironing roller → surface treatment → finished leather, wherein the grease formula used in the roller coating grease procedure comprises the following components: 100-125 parts of water, 75-80 parts of mixed emulsion of sulfated synthetic grease and phospholipid, 20-25 parts of chlorinated paraffin and 125 parts of penetrating agent.
Further, the preparation method of the grease comprises the following steps:
mixing the mixed emulsion of the sulfated synthetic oil and the phospholipid with chlorinated paraffin, stirring, adding 50-60 deg.C water, adding penetrant, and stirring.
Further, the mixed emulsion of the sulfated synthetic grease and the phospholipid is a compound grease formed by compounding sulfate-based grease and phosphate-based grease;
the penetrating agent is selected from one of anionic surfactant and nonionic surfactant.
Further, the pre-priming coating agent consists of 125 parts of water, 30-45 parts of aromatic polyurethane resin dispersion liquid and 20-25 parts of penetrating agent;
the aromatic polyurethane resin dispersion is a polymer generated by stepwise polymerization of aromatic diisocyanate and a hydroxyl compound, and the solid content of the polymer is 15-20%.
Further, the coating agents of the primary coating and the middle coating respectively comprise 250 parts of water 200-.
Furthermore, the top coating finishing agent comprises 125 parts of water 100-one, 15-20 parts of wax emulsion, 25-30 parts of oil-wax mixed emulsion, 20-25 parts of aromatic polyurethane resin dispersion liquid, 125 parts of self-extinction polyurethane resin emulsion, 20-25 parts of flatting agent and 5-8 parts of cross-linking agent.
Further, the finishing agent for surface treatment consists of 125 parts of water, 5-10 parts of wax emulsion and 40-45 parts of water splashing preventive.
Further, the crust leather drying and finishing method comprises the following steps: wringing and stretching → wet-stretching drying → hanging and drying → dampening → standing → shaking and softening → buffing → milling → drying of stretching plate.
Further, in the leather grinding process of the leather drying and finishing, the moisture content of the leather is controlled to be 21-25%, 2 times of grinding are carried out by 400 or 600-mesh sand paper, and 1 time of grinding is carried out by 800 or 1000-mesh sand paper, wherein 1 time of grinding is respectively carried out on the part between the abdomen and the ribs and the part between the neck and the shoulders by 400 or 600-mesh sand paper before leather grinding.
Furthermore, in the wet stretching plate process, the drying temperature is 45-50 ℃, the distance is 1-3cm, and the moisture content is controlled to be 55-70%;
the moisture content in the hanging, airing and drying process is controlled to be 10-15%;
the moisture content in the moisture regain process is controlled to be 21-25%;
the temperature in the sand ironing roller process is 120-130 ℃, and the pressure is 25-35 kgf;
the temperature in the ironing roller process is 120-130 ℃, and the pressure is 5-30 kgf;
the temperature in the pore roller ironing process is 120-130 ℃, and the pressure is 35-50 kgf;
the standing time in the standing procedure is 8-16 h;
the milling time in the milling procedure is 5-10h, the temperature is 25-30 ℃, and the humidity is 13-17%;
the number of stages in the oscillation softening process is 5 or 6;
the temperature in the toggling drying procedure is 45-50 ℃, and the distance is 5-10 cm.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the mixed emulsion of the sulfated synthetic grease and the phospholipid is easy to emulsify and disperse in water at 50-60 ℃, has excellent stability and permeability, and has excellent universality and compounding property; the chlorinated paraffin belongs to mineral oil, has polar groups (-Cl), has good affinity to leather fibers, and can endow finished leather with durable oily touch feeling, but the chlorinated paraffin is difficult to dissolve in water and is difficult to emulsify and disperse in the water. The chlorinated paraffin is emulsified and dispersed by adopting a mixed emulsion of sulfated synthetic grease and phospholipid, emulsion particles are uniform after the sulfated synthetic grease and the phospholipid are compounded, the emulsion particles are coated on the surface of crust leather, and the uniform distribution of the grease in the leather and on the leather surface is promoted through high-temperature ironing, so that the compactness of the leather body is increased, the waxy and oily touch feeling is given to the leather surface, and the fullness of the color of the leather surface is increased.
The pre-base coat selects the aromatic polyurethane resin dispersion liquid with excellent adhesiveness and leveling property, and is matched with a proper amount of penetrating agent to improve the permeability, so that the adhesion performance of a subsequent coating layer and a leather base material is improved; in the coating layers (primary coating, middle coating and top coating), self-extinction polyurethane resin is selected, does not contain any flatting agent, has fixed latex particle size and has excellent emulsion stability. After the resin forms a film, particles float on the surface of the film, the surface roughness is increased, the film is endowed with an excellent extinction effect, the covering property is improved, the defects of the grain surface of crust leather can be covered to a certain degree, the frosted touch feeling of the surface of finished leather is improved, and the extinction effect is automatically generated by the resin, so that the incompatibility of an extinction agent and the resin can be avoided, and the wear resistance, the bending resistance and the rubbing color fastness of the film are improved; the oil emulsion, the wax emulsion and the oil-wax mixed emulsion are adopted, and the purposes of covering the grain surface damage of the crust leather, improving the grain surface flatness and fineness and endowing the finished leather with delicate, oily and waxy touch feeling are achieved.
The application adopts wet toggling for drying, and the moisture content is controlled to be 55-70%; then hanging, airing and drying, controlling the water content to be 10-15%, and aiming at reducing the extensibility of crust leather, improving the grain surface evenness, keeping the softness of the leather body, improving the leather yield and reducing the loose surface rate.
The moisture content of the moisture regain process is controlled to be 21-25%, leather grinding is easy, control is easy, and the fluff length is moderate. When the moisture content of crust leather is less than 20%, the leather is ground, the fluff is extremely short, and the leather grinding operation is not easy to control; when the moisture content is more than 25 percent, the velvet is not easy to rise.
This application grinds 2 with 400 or 600 mesh abrasive paper earlier, grinds 1 with 800 or 1000 mesh abrasive paper afterwards, grinds 1 with 400 or 600 mesh abrasive paper respectively to the rib and the rib part between the ribs and the hips and the shoulders position before wherein buffing, reaches fine hair even, and the unanimous requirement of color and luster has effectively avoided because the position of leather collagen fiber bundle structure is poor, leads to the problem that fine hair is different in size.
The finished leather has the advantages that the finished leather has frosted touch feeling, is strong in greasiness, good in ventilation and perspiration property, soft and plump, and more highlights the comfortable and natural leather feeling and excellent sanitary performance of natural leather, and the manufactured leather products such as shoes, boots, bags, sofas and the like are attractive, atmosphere and noble, and belong to fine products in leather products; meanwhile, the color fastness to rubbing is excellent, and the performances of dry rubbing resistance, wet rubbing resistance and sweat rubbing resistance can reach more than 4 grades.
Detailed Description
In order to better understand the technical solutions, the technical solutions will be described in detail with reference to the description and the specific embodiments.
Example 1
A finishing processing technology of imitation oil-buffed sandleather comprises the following steps:
(1) preparation of oil and fat
100 parts of water, 80 parts of a mixed emulsion TRUPON DB (Thompler chemical Co., Ltd.) of sulfated synthetic oil and fat and phospholipid, 20 parts of chlorinated paraffin CORIPOL ICA (Delimity chemical Co., Ltd.), and 100 parts of a penetrant PT-4235 (Steyr Fine paint Co., Ltd.).
The preparation process comprises the following steps: firstly, 80 parts of sulfated synthetic oil and phospholipid mixed emulsion TRUPONDB and 20 parts of chlorinated paraffin Coripolic acid are mixed and stirred uniformly, then 100 parts of water with the temperature of 60 ℃ is added, and finally 100 parts of penetrating agent PT-4235 is added and stirred uniformly.
(2) Preparation of pre-base coating finishing agent
100 parts of water; 40 parts of aromatic polyurethane resin dispersion liquid RU-43-989 (Stelar Fine paint Co., Ltd.), and 20 parts of penetrating agent PT-4235 (Stelar fine paint Co., Ltd.).
(3) Preparation of base coat and intermediate coat finishing agent
200 parts of water, 100 parts of oil emulsion CHEM KO 2311 (Xiamenhauda trade company, Ltd.), 20 parts of WAX emulsion LANGROFIN TOUCHGW-6 (Thompella chemical company, Ltd.), 80 parts of oil-WAX mixed emulsion WAX 3390 (Xiamenhauda trade company, Ltd.), 100 parts of nonionic polyurethane resin dispersion TRUPOCRYL U-25-CA (Thompella chemical company, Ltd.), 40 parts of self-extinction polyurethane resin emulsion EX-WT-43-985 (Steyr fine paint Co., Ltd.), 25 parts of flatting agent LA-1688 (Steyr fine paint Co., Ltd.), 20 parts of penetrating agent PT-4235 (Steyr fine paint Co., Ltd.), 5 parts of pigment paste PPE DEEP BLACK A-ID (Steyr fine paint Co., Ltd.), and 12 parts of dye solution Black W LD-5932 (Steyr fine paint Co., Ltd.).
(4) Preparation of top coating finishing agent
100 parts of water; 15 parts of WAX emulsion LANGROFIN TOUCH GW-6 (Toepler chemical Co., Ltd.), 30 parts of oil-WAX mixed emulsion WAX 3390 (Xiamen Haodya trade Co., Ltd.), 20 parts of aromatic polyurethane resin dispersion RU-43-989 (Stelar Fine paint Co., Ltd.), 120 parts of self-extinction polyurethane resin emulsion EX-WT-43-985 (Stelar fine paint Co., Ltd.), 20 parts of flatting agent LA-1688 (Stelar fine paint Co., Ltd.), and 5 parts of crosslinking agent AQUALEN AKU (Stelar fine paint Co., Ltd.).
(5) Preparation of surface treatment finishing agent
100 parts of water, 10 parts of wax emulsion Langorofin Touchgw-6 (Toeplier chemical Co., Ltd.), and 45 parts of water repellent WR-5531 (Steyr fine paint Co., Ltd.).
(6) Operation process
Wringing and stretching → wet-stretching board drying (temperature is 50 ℃, spacing is 2cm, moisture content is controlled at 55-57%) → hanging and drying (moisture content is controlled at 10-12%) → moisture regain (moisture content is controlled at 21-23%) → standing (time is 12h) → vibration softening (grade 6) → leather grinding (moisture content of crust leather is controlled at 21-25%), firstly grinding 2 courses with 600-mesh sandpaper, and then grinding 1 course with 800-mesh sandpaper, wherein before grinding, 400-mesh sandpaper is used to respectively transversely grind 1 course of belly and neck and shoulder areas → softening (time is 6h, temperature is 25 ℃, humidity is 15%)) → stretching board drying (temperature is 50 ℃, spacing is 8cm) → grease → standing (time is 12h) → ironing roll (temperature is 120 ℃, pressure is 30kgf) → spraying and pre-coating → spraying under coating → coating under coating → temperature is 120 ℃ and pressure is 30kgf) → spraying and top ironing roll standing (time is 12h) → ironing roll standing and ironing roll At 120 c, a pressure of 5kgf) → ironing a burr roller (temperature of 120 c, pressure of 50kgf) → ironing a roller (temperature of 120 c, pressure of 5kgf) → surface treatment → finished leather.
Example 2
A finishing process of imitation oil-buffed leatherette is the same as that in example 1, except that:
(1) preparation of oil and fat
125 parts of water, 75 parts of mixed emulsion TRUPON DB (Toeplier chemical Co., Ltd.) of sulfated synthetic oil and fat and phospholipid, 25 parts of chlorinated paraffin CORIPOL ICA (Delimity chemical Co., Ltd.), and 100 parts of penetrating agent PT-4235 (Steyr fine coating Co., Ltd.).
The preparation process comprises the following steps: firstly, 75 parts of sulfated synthetic oil and phospholipid mixed emulsion TRUPON DB and 25 parts of chlorinated paraffin CORIPOL ICA are mixed and stirred uniformly, then 125 parts of water with the temperature of 60 ℃ is added, and finally 100 parts of penetrating agent PT-4235 is added and stirred uniformly.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (10)
1. A finishing processing technology of imitation oil-buffed sandleather comprises the following steps: drying and finishing crust leather → roller coating grease → standing → sand ironing roller → pre-bottom coating → ironing roller → middle coating → top coating → standing → ironing roller → hair ironing roller → surface treatment → finished leather, characterized in that the grease formula used in the roller coating grease process comprises: 100-125 parts of water, 75-80 parts of mixed emulsion of sulfated synthetic grease and phospholipid, 20-25 parts of chlorinated paraffin and 125 parts of penetrating agent.
2. The finish processing technology of the imitation oil-buffed sandleather according to claim 1, wherein the preparation method of the grease comprises the following steps:
mixing the mixed emulsion of the sulfated synthetic oil and the phospholipid with chlorinated paraffin, stirring, adding 50-60 deg.C water, adding penetrant, and stirring.
3. The finish processing technology of the imitation oil buffed leather according to claim 1 or 2,
the mixed emulsion of the sulfated synthetic grease and the phospholipid is composite grease formed by compounding sulfate-based grease and phosphate-based grease;
the penetrating agent is selected from one of anionic surfactant and nonionic surfactant.
4. The finishing process of imitation oil-sanded leather as claimed in claim 1, wherein the pre-primer coating agent comprises 125 parts of water, 30-45 parts of aromatic polyurethane resin dispersion liquid and 20-25 parts of penetrant;
the aromatic polyurethane resin dispersion is a polymer generated by stepwise polymerization of aromatic diisocyanate and a hydroxyl compound, and the solid content of the polymer is 15-20%.
5. The coating process of the imitation oil-ground sandleather as claimed in claim 1, wherein the primer coating and the middle coating are respectively composed of water 200-250 parts, oil emulsion 100-125 parts, wax emulsion 20-25 parts, oil-wax mixed emulsion 80-100 parts, nonionic polyurethane resin dispersion 100-125 parts, self-extinction polyurethane resin emulsion 40-50 parts, leveling agent 20-25 parts, penetrating agent 20-25 parts, pigment paste 5-8 parts, and dye liquor 10-15 parts.
6. The process for finishing imitation oil-sanded leather as claimed in claim 1, wherein the top coating agent comprises 125 parts of water 100, 15-20 parts of wax emulsion, 25-30 parts of oil-wax mixed emulsion, 20-25 parts of aromatic polyurethane resin dispersion, 125 parts of self-extinction polyurethane resin emulsion, 20-25 parts of leveling agent, and 5-8 parts of crosslinking agent.
7. The finishing process of imitation oil-sanded leather as claimed in claim 1, wherein the finishing agent for surface treatment comprises water 100-125 parts, wax emulsion 5-10 parts, and water repellent 40-45 parts.
8. The finish finishing process for imitation buffed leather according to claim 1, wherein the crust leather dry finishing comprises the following steps: wringing and stretching → wet-stretching drying → hanging and drying → dampening → standing → shaking and softening → buffing → milling → drying of stretching plate.
9. The process of claim 8, wherein the moisture content of the crust leather is controlled to 21-25% during the leather finishing process of the drying and finishing of the crust leather, 2 passes of 400 or 600 mesh abrasive paper are firstly used, and 1 pass of 800 or 1000 mesh abrasive paper is subsequently used, wherein 1 pass of 400 or 600 mesh abrasive paper is used for transverse grinding of the parts between the ventral ribs and the neck and shoulder parts before the leather is finished.
10. The finish processing technology of the imitation oil-buffed leather according to claim 8,
in the wet stretching plate process, the drying temperature is 45-50 ℃, the distance is 1-3cm, and the water content is controlled to be 55-70%;
the moisture content in the hanging, airing and drying process is controlled to be 10-15%;
the moisture content in the moisture regain process is controlled to be 21-25%;
the temperature in the sand ironing roller process is 120-130 ℃, and the pressure is 25-35 kgf;
the temperature in the ironing roller process is 120-130 ℃, and the pressure is 5-30 kgf;
the temperature in the pore roller ironing process is 120-130 ℃, and the pressure is 35-50 kgf;
the standing time in the standing procedure is 8-16 h;
the milling time in the milling procedure is 5-10h, the temperature is 25-30 ℃, and the humidity is 13-17%;
the number of stages in the oscillation softening process is 5 or 6;
the temperature in the toggling drying procedure is 45-50 ℃, and the distance is 5-10 cm.
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| CN202011436060.XA CN112725545A (en) | 2020-12-10 | 2020-12-10 | Coating processing technology of imitation oil-ground sanded leather |
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| CN202011436060.XA CN112725545A (en) | 2020-12-10 | 2020-12-10 | Coating processing technology of imitation oil-ground sanded leather |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114574082A (en) * | 2022-01-26 | 2022-06-03 | 浙江富邦汽车内饰科技有限公司 | Conductive leather for automobile interior decoration and preparation method thereof |
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| CN109825120A (en) * | 2019-01-31 | 2019-05-31 | 漳州香洲皮革有限公司 | Spill resistant agent and preparation method thereof, the method for preparing spill resistant leather with it |
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| CN114574082A (en) * | 2022-01-26 | 2022-06-03 | 浙江富邦汽车内饰科技有限公司 | Conductive leather for automobile interior decoration and preparation method thereof |
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