CN106636493B - A kind of production technology preparing cladding using two layers of sheepskin scytoblastema - Google Patents
A kind of production technology preparing cladding using two layers of sheepskin scytoblastema Download PDFInfo
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- CN106636493B CN106636493B CN201710022136.6A CN201710022136A CN106636493B CN 106636493 B CN106636493 B CN 106636493B CN 201710022136 A CN201710022136 A CN 201710022136A CN 106636493 B CN106636493 B CN 106636493B
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- Prior art keywords
- scytoblastema
- sheepskin
- layers
- weight ratio
- cladding
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Classifications
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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
Abstract
The present invention relates to leather processing technique fields, and in particular to a kind of production technology that cladding is prepared using two layers of sheepskin scytoblastema includes the following steps: (1) selection: using two layers of sheepskin scytoblastema；(2) it sprays: spraying one layer of cracking resin for synthesizing in the flannelette of two layers of sheepskin scytoblastema；(3) it transfers: the transfer membrane with metal broken face effect is transferred to the surface of two layers of sheepskin scytoblastema by gilding press, cladding is made.Production craft step of the invention is simple, convenient operation and control, and quality is stablized, and high production efficiency, raw material is cheap and easy to get, and cladding utilization rate is high, and production cost is low, can large-scale industrial production；Finished product cladding obtained has metal broken face effect, reaches the application requirement of first layer lether material, the added value of finished product cladding has obtained significantly being promoted, high financial profit.
Description
Technical field
The present invention relates to leather processing technique fields, and in particular to a kind of production that cladding is prepared using two layers of sheepskin scytoblastema
Technique.
Background technique
Leather is widely used in surface of people's livelihood articles, such as tables and chairs, sofa, footwear material, clothing etc., increases people's livelihood articles
Texture, aesthetic feeling or durability.Leather can be roughly divided into rtificial leather and natural leather.Natural leather, which refers to, to be taken animal fur and gives
With drying, cleaning, softening, dyeing, deburring, the manufacture crafts processing such as cut after, form surfacing and strong but pliable in texture skin
Material.
Existing two layers of sheepskin is since fineness is inadequate, low in glossiness, is only used for the lining of production cladding, cannot function as producing
The surface material of product comes using application range is restricted, and the economic benefit is not high for cladding obtained.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, two layers of sheep are utilized the purpose of the present invention is to provide a kind of
Skin scytoblastema prepares the production technology of cladding, and the production craft step is simple, convenient operation and control, and quality is stablized, high production efficiency,
Raw material is cheap and easy to get, and cladding utilization rate is high, and production cost is low, can large-scale industrial production；Finished product cladding obtained has gold
Belong to broken face effect, reaches the application requirement of first layer lether material, the added value of finished product cladding has obtained significantly being promoted, economic benefit
It is high.
The purpose of the invention is achieved by the following technical solution: a kind of production work preparing cladding using two layers of sheepskin scytoblastema
Skill includes the following steps:
(1) two layers of sheepskin scytoblastema selection: are used；
(2) it sprays: spraying one layer of cracking resin for synthesizing in the flannelette of two layers of sheepskin scytoblastema；
(3) it transfers: the transfer membrane with metal broken face effect is transferred to the surface of two layers of sheepskin scytoblastema by gilding press,
Cladding is made.
Preferably, in the step (2), cracking resin for synthesizing is made of the raw material of following weight percent:
Waterborne polyurethane resin 40-80%
Thickener 2-6%
Emulsifier 1-5%
Levelling agent 2-4%
Water surplus.
Cracking resin for synthesizing of the invention is by using above-mentioned raw materials, and the weight proportion of each raw material of strict control, tortoise obtained
Crack resin has many advantages, such as good film-forming property, is firmly bonded, coating solvent resistant, cold-resistant, hydrolysis, heat-proof aging, is mentioned with the present invention
The advantages that finished product made of the cracking resin for synthesizing of confession has crazing effect good, and kishke feel is strong, and quality is fine and smooth, good permeability.
Preferably, the waterborne polyurethane resin is aliphatic polyurathane emulsion, aliphatic polyurethane dispersion liquid or fat
At least one of race's aqueous polyurethane.
By using above-mentioned polyurethane resin, cracking resin for synthesizing obtained has good film-forming property, is firmly bonded, coating the present invention
The advantages that solvent resistant, cold-resistant, hydrolysis, heat-proof aging.
Preferably, the waterborne polyurethane resin is aromatic urethane lotion, aromatic urethane dispersion liquid and fragrance
At least one of race's aqueous polyurethane.
By using above-mentioned polyurethane resin, cracking resin for synthesizing obtained has good film-forming property, is firmly bonded, coating the present invention
The advantages that solvent resistant, cold-resistant, hydrolysis, heat-proof aging.
Preferably, the thickener is nonionic polyurethane Associative thickener.
For the present invention by using nonionic polyurethane Associative thickener, thickening effect is good, cracking resin for synthesizing obtained at
Film property is good, is firmly bonded.
The mixing that the emulsifier is made of nonylphenol polyoxyethylene ether and lauryl sodium sulfate with weight ratio 1-2:1
Object.
The present invention, as emulsifier, and controls its weight by using nonylphenol polyoxyethylene ether and lauryl sodium sulfate
Than for 1-2:1, emulsifying effectiveness is good, and cracking resin for synthesizing stability obtained is good.
The mixing that the levelling agent is made of organosilicon levelling agent and acrylate leveling agent with weight ratio 0.8-1.2:1
Object.
The present invention is used in compounding by using organosilicon levelling agent and acrylate leveling agent as levelling agent, and controls it
Weight ratio is 0.8-1.2:1, and levelling effect is good, cracking resin for synthesizing good film-forming property obtained.
Preferably, in the step (3), transfer membrane is aluminum plated PET film, PET film with a thickness of 0.12-0.16mm, aluminize
Layer with a thickness of 0.02-0.06mm.
For the present invention by using aluminum plated PET film as transfer membrane, transfer effect is good, so that cladding surface has preferably
Metal broken face effect.
Preferably, the PET film is made of the raw material of following parts by weight:
80-120 parts of PET resin
10-30 parts of glass fibre
5-15 parts of filler
6-10 parts of elastomeric modification agent
4-8 parts of impact modifier
4-8 parts of fire retardant
1-5 parts of coupling agent
1-3 parts of nucleating agent
0.5-1.5 parts of lubricant
0.5-1.5 parts of antioxidant.
PET film of the invention is by using above-mentioned raw materials, and the weight proportion of each raw material of strict control, PET film obtained
With the mechanical properties such as preferable elasticity, stretching, bending, impact, thermal deformation behavior, excellent combination property.
Preferably, the PET resin is characterized PET tree of the viscosity in 0.8-1.2dL/g, molecular weight 5,000-10,000
Rouge.
PET resin of the present invention by using intrinsic viscosity in 0.8-1.2dL/g, molecular weight 5,000-10,000, system
The PET film obtained has the mechanical properties such as preferable elasticity, stretching, bending, impact, thermal deformation behavior.
The glass fibre is filament diameter in 20-40 μm, short glass fiber of the length at 500-1000 μm.
The present invention by using filament diameter in 20-40 μm, length in 500-1000 μm of short glass fiber, improve
The heat resistance of PET film, dimensional stability, rigidity, and the mechanical performances such as tensile strength and bending strength are significantly improved, and make PET
Film has good abrasion resistance, heat resistance, oil resistivity and chemical resistance, is also greatly reduced the water absorption rate and receipts of PET film
Shrinkage has excellent dimensional stability and excellent mechanical strength.
The filler be by partial size 10-100nm powdered whiting at 10-100 μm of nanometer calcium carbonate and partial size
The mixture formed with weight ratio 0.5-1.5:1.
The present invention is filled out by using the nanometer calcium carbonate and partial size of 10-100nm in 10-100 μm of powdered whiting conduct
It fills agent to be used in compounding, and controlling its weight ratio is 0.5-1.5:1, and the wear resistance of PET film can be improved, improve the wearability of material
And anti-slippery, tensile strength, tearing strength etc. are improved.
Preferably, the elastomeric modification agent is acrylate and the Bifunctionalized vinyl elastomer of ethylene oxidic ester.
The present invention by using acrylate and the Bifunctionalized vinyl elastomer of ethylene oxidic ester as elastomeric modification agent,
Elasticity is good for PET film obtained, and tensile strength and elongation are big, PET film elasticity be improved significantly.
The impact modifier is by methyl methacrylate-butadiene-styrene terpolymer and methacrylic acid-
The mixture that butadiene-styrene copolymer is formed with weight ratio 1.6-2.4:1.
The present invention is by using methyl methacrylate-butadiene-styrene terpolymer and methacrylic acid-fourth two
Alkene-styrol copolymer is used in compounding as impact modifier, and controlling its weight ratio is 1.6-2.4:1, can reduce resin
Melt viscosity, the processing performance for improving mobility, improving plastics；Can also improve the impact strength of PET film, resistance to low temperature,
Weathering performance, the service life for extending product.
The fire retardant is by brominated epoxy resin, antimony oxide and polytetrafluoroethylene (PTFE) with weight ratio 1.4-2.2:0.5-
1.5:1 the mixture of composition.
The present invention is used in compounding by using brominated epoxy resin, antimony oxide and polytetrafluoroethylene (PTFE) as fire retardant,
And controlling its weight ratio is 1.4-2.2:0.5-1.5:1, can achieve good flame retardant effect, moreover it is possible to improve the processability of material
Energy and mechanical performance.
The coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.The present invention is by using γ-glycidol
For ether oxygen propyl trimethoxy silicane as coupling agent, coupling effect is good, and PET film obtained has preferable elasticity, stretches, is curved
The mechanical properties such as song, impact, thermal deformation behavior.
Preferably, the nucleating agent is made of nano montmorillonite and aryl orthophosphate with weight ratio 0.8-1.2:1 mixed
Close object.
The present invention is used in compounding by using nano montmorillonite and aryl orthophosphate as nucleating agent, and controls its weight ratio
For 0.8-1.2:1, PET film obtained has the mechanical properties such as preferable elasticity, stretching, bending, impact, thermal deformation behavior.
The lubricant is by poly- methyl silicon systems spheroidal particle, octadecanoid acid -2-(methylol) -2- [[(1- oxo 18
Alkyl) oxygroup] methyl] -1,3- glyceryl ester and pentaerythritol stearate with weight ratio be mixing of form of 2-4:1.5-2.5:1
Close object.
The present invention is by using poly- methyl silicon systems spheroidal particle, octadecanoid acid -2-(methylol) -2- [[(1- oxo 18
Alkyl) oxygroup] methyl] -1,3- glyceryl ester and pentaerythritol stearate are used in compounding as lubricant, and control its weight
Than for 2-4:1.5-2.5:1, can make material in process improves the mobility of material and the release property of product.
The mixture that the antioxidant is made of antioxidant 1010 and irgasfos 168 with weight ratio 1-2:1.
The present invention is used in compounding by using antioxidant 1010 and irgasfos 168 as antioxidant, and controls its weight ratio
For 1-2:1, it can delay or inhibit the progress of material oxidation process, to prevent the aging of material and prolong its service life.
The beneficial effects of the present invention are: production craft step of the invention is simple, convenient operation and control, and quality is stablized,
High production efficiency, raw material is cheap and easy to get, and cladding utilization rate is high, and production cost is low, can large-scale industrial production.
Finished product cladding produced by the present invention has metal broken face effect, reaches the application requirement of first layer lether material, finished product cladding
Added value obtained significantly being promoted, high financial profit.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of production technology being prepared cladding using two layers of sheepskin scytoblastema, is included the following steps:
(1) two layers of sheepskin scytoblastema selection: are used；
(2) it sprays: spraying one layer of cracking resin for synthesizing in the flannelette of two layers of sheepskin scytoblastema；
(3) it transfers: the transfer membrane with metal broken face effect is transferred to the surface of two layers of sheepskin scytoblastema by gilding press,
Cladding is made.
In the step (2), cracking resin for synthesizing is made of the raw material of following weight percent:
Waterborne polyurethane resin 40%
Thickener 2%
Emulsifier 1%
Levelling agent 2%
Water surplus.
The waterborne polyurethane resin is aliphatic polyurathane emulsion.
The waterborne polyurethane resin is aromatic urethane lotion.
The thickener is nonionic polyurethane Associative thickener；The emulsifier be by nonylphenol polyoxyethylene ether and
The mixture that lauryl sodium sulfate is formed with weight ratio 1:1；The levelling agent is by organosilicon levelling agent and acrylate stream
The mixture that flat agent is formed with weight ratio 0.8:1.
In the step (3), transfer membrane is aluminum plated PET film, PET film with a thickness of 0.12mm, aluminium coated with a thickness of
0.02mm。
The PET film is made of the raw material of following parts by weight:
80 parts of PET resin
10 parts of glass fibre
5 parts of filler
6 parts of elastomeric modification agent
4 parts of impact modifier
4 parts of fire retardant
1 part of coupling agent
1 part of nucleating agent
0.5 part of lubricant
0.5 part of antioxidant.
Embodiment 2
The difference of the present embodiment and above-described embodiment 1 is:
In the step (2), cracking resin for synthesizing is made of the raw material of following weight percent:
Waterborne polyurethane resin 60%
Thickener 4%
Emulsifier 3%
Levelling agent 3%
Water surplus.
The waterborne polyurethane resin is aliphatic polyurethane dispersion liquid.
The waterborne polyurethane resin is aromatic urethane dispersion liquid.
The thickener is nonionic polyurethane Associative thickener；The emulsifier be by nonylphenol polyoxyethylene ether and
The mixture that lauryl sodium sulfate is formed with weight ratio 1.5:1；The levelling agent is by organosilicon levelling agent and acrylate
The mixture that levelling agent is formed with weight ratio 1:1.
In the step (3), transfer membrane is aluminum plated PET film, PET film with a thickness of 0.14mm, aluminium coated with a thickness of
0.04mm。
The PET film is made of the raw material of following parts by weight:
100 parts of PET resin
20 parts of glass fibre
10 parts of filler
8 parts of elastomeric modification agent
6 parts of impact modifier
6 parts of fire retardant
3 parts of coupling agent
2 parts of nucleating agent
1 part of lubricant
1 part of antioxidant.
Embodiment 3
The difference of the present embodiment and above-described embodiment 1 is:
In the step (2), cracking resin for synthesizing is made of the raw material of following weight percent:
Waterborne polyurethane resin 80%
Thickener 6%
Emulsifier 5%
Levelling agent 4%
Water surplus.
The waterborne polyurethane resin is aliphatic polyurethane aqueous solution.
The waterborne polyurethane resin is aromatic urethane aqueous solution.
The thickener is nonionic polyurethane Associative thickener；The emulsifier be by nonylphenol polyoxyethylene ether and
The mixture that lauryl sodium sulfate is formed with weight ratio 2:1；The levelling agent is by organosilicon levelling agent and acrylate stream
The mixture that flat agent is formed with weight ratio 1.2:1.
In the step (3), transfer membrane is aluminum plated PET film, PET film with a thickness of 0.16mm, aluminium coated with a thickness of
0.06mm。
The PET film is made of the raw material of following parts by weight:
120 parts of PET resin
30 parts of glass fibre
15 parts of filler
10 parts of elastomeric modification agent
8 parts of impact modifier
8 parts of fire retardant
5 parts of coupling agent
3 parts of nucleating agent
1.5 parts of lubricant
1.5 parts of antioxidant.
Embodiment 4
The difference of the present embodiment and above-described embodiment 1 is:
The PET resin is characterized PET resin of the viscosity in 0.8dL/g, molecular weight 5,000；The glass fibre is
Filament diameter is in 20 μm, short glass fiber of the length at 500 μm；The filler be by partial size 10nm nanometer calcium carbonate
The mixture formed with partial size in 10 μm of powdered whiting with weight ratio 0.5:1.
The elastomeric modification agent is acrylate and the Bifunctionalized vinyl elastomer of ethylene oxidic ester；It is described impact-resistant modified
Agent is by methyl methacrylate-butadiene-styrene terpolymer and Methacrylate-butadiene-styrene
The mixture formed with weight ratio 1.6:1；The fire retardant be by brominated epoxy resin, antimony oxide and polytetrafluoroethylene (PTFE) with
The mixture of weight ratio 1.4:0.5:1 composition；The coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.
The mixture that the nucleating agent is made of nano montmorillonite and aryl orthophosphate with weight ratio 0.8:1；The profit
Lubrication prescription is by poly- methyl silicon systems spheroidal particle, octadecanoid acid -2-(methylol) -2- [[(1- oxo octadecyl) oxygroup] first
Base] -1,3- glyceryl ester and pentaerythritol stearate be with mixture that weight ratio is that 2:1.5:1 is formed；The antioxidant is
The mixture being made of antioxidant 1010 and irgasfos 168 with weight ratio 1:1.
Embodiment 5
The difference of the present embodiment and above-described embodiment 2 is:
The PET resin is characterized PET resin of the viscosity in 1dL/g, molecular weight 8,000；The glass fibre is single
Silk diameter is in 30 μm, short glass fiber of the length at 800 μm；The filler be by partial size 50nm nanometer calcium carbonate and
The mixture that partial size is formed in 50 μm of powdered whiting with weight ratio 1:1.
The elastomeric modification agent is acrylate and the Bifunctionalized vinyl elastomer of ethylene oxidic ester；It is described impact-resistant modified
Agent is by methyl methacrylate-butadiene-styrene terpolymer and Methacrylate-butadiene-styrene
The mixture formed with weight ratio 2:1；The fire retardant is by brominated epoxy resin, antimony oxide and polytetrafluoroethylene (PTFE) with weight
Measure the mixture formed than 1.8:1:1；The coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.
The mixture that the nucleating agent is made of nano montmorillonite and aryl orthophosphate with weight ratio 1:1；The lubrication
Agent is by poly- methyl silicon systems spheroidal particle, octadecanoid acid -2-(methylol) -2- [[(1- oxo octadecyl) oxygroup] methyl] -
The mixture that 1,3- glyceryl ester and pentaerythritol stearate are formed with weight ratio for 3:2:1；The antioxidant is by antioxygen
The mixture that agent 1010 and irgasfos 168 are formed with weight ratio 1.5:1.
Embodiment 6
The difference of the present embodiment and above-described embodiment 3 is:
The PET resin is characterized PET resin of the viscosity in 1.2dL/g, molecular weight 10,000；The glass fibre is
Filament diameter is in 40 μm, short glass fiber of the length at 1000 μm；The filler be by partial size 100nm nano-calcium carbonate
The mixture that calcium and partial size are formed in 100 μm of powdered whiting with weight ratio 1.5:1.
The elastomeric modification agent is acrylate and the Bifunctionalized vinyl elastomer of ethylene oxidic ester；It is described impact-resistant modified
Agent is by methyl methacrylate-butadiene-styrene terpolymer and Methacrylate-butadiene-styrene
The mixture formed with weight ratio 2.4:1；The fire retardant be by brominated epoxy resin, antimony oxide and polytetrafluoroethylene (PTFE) with
The mixture of weight ratio 2.2:1.5:1 composition；The coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.
The mixture that the nucleating agent is made of nano montmorillonite and aryl orthophosphate with weight ratio 1.2:1；The profit
Lubrication prescription is by poly- methyl silicon systems spheroidal particle, octadecanoid acid -2-(methylol) -2- [[(1- oxo octadecyl) oxygroup] first
Base] -1,3- glyceryl ester and pentaerythritol stearate be with mixture that weight ratio is that 4:2.5:1 is formed；The antioxidant is
The mixture being made of antioxidant 1010 and irgasfos 168 with weight ratio 2:1.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (3)
1. a kind of production technology for preparing cladding using two layers of sheepskin scytoblastema, characterized by the following steps:
(1) two layers of sheepskin scytoblastema selection: are used；
(2) it sprays: spraying one layer of cracking resin for synthesizing in the flannelette of two layers of sheepskin scytoblastema；
(3) it transfers: the transfer membrane with metal broken face effect is transferred to the surface of two layers of sheepskin scytoblastema by gilding press, be made
Cladding；
Wherein, in the step (2), cracking resin for synthesizing is made of the raw material of following weight percent:
The thickener is nonionic polyurethane Associative thickener；The emulsifier is by nonylphenol polyoxyethylene ether and 12
Sodium alkyl sulfate is with weight ratio (1-2): 1 mixture formed；The levelling agent is by organosilicon levelling agent and acrylate stream
Flat agent is with weight ratio (0.8-1.2): 1 mixture formed；
Wherein, in the step (3), transfer membrane is aluminum plated PET film, PET film with a thickness of 0.12-0.16mm, the thickness of aluminium coated
Degree is 0.02-0.06mm；
The PET film is made of the raw material of following parts by weight:
The waterborne polyurethane resin is that aliphatic polyurathane emulsion, aliphatic polyurethane dispersion liquid or aliphatic polyurethane are water-soluble
At least one of liquid, alternatively, in aromatic urethane lotion, aromatic urethane dispersion liquid and aromatic urethane aqueous solution
At least one；
The PET resin be characterized viscosity 0.8-1.2dL/g, molecular weight 5,000-10,000 PET resin；The glass
Fiber is filament diameter in 20-40 μm, short glass fiber of the length at 500-1000 μm；The filler is existed by partial size
The nanometer calcium carbonate of 10-100nm and partial size are in 10-100 μm of powdered whiting with weight ratio (0.5-1.5): 1 mixing formed
Object.
2. a kind of production technology for preparing cladding using two layers of sheepskin scytoblastema according to claim 1, it is characterised in that: institute
Stating elastomeric modification agent is acrylate and the Bifunctionalized vinyl elastomer of ethylene oxidic ester；The impact modifier is by methyl
Methylacrylate-butadiene-styrene copolymer and Methacrylate-butadiene-styrene are with weight ratio
(1.6-2.4): the mixture of 1 composition；The fire retardant is by brominated epoxy resin, antimony oxide and polytetrafluoroethylene (PTFE) with weight
It measures than (1.4-2.2): (0.5-1.5): the mixture of 1 composition；The coupling agent is γ-glycidyl ether oxygen propyl trimethoxy
Silane.
3. a kind of production technology for preparing cladding using two layers of sheepskin scytoblastema according to claim 1, it is characterised in that: institute
Nucleating agent is stated by nano montmorillonite and aryl orthophosphate with weight ratio (0.8-1.2): 1 mixture formed；The lubricant
Be by poly- methyl silicon systems spheroidal particle, octadecanoid acid -2- (methylol) -2- [[(1- oxo octadecyl) oxygroup] methyl] -1,
3- glyceryl ester and pentaerythritol stearate are with weight ratio for (2-4): (1.5-2.5): 1 mixture formed；The antioxygen
Agent is by antioxidant 1010 and irgasfos 168 with weight ratio (1-2): 1 mixture formed.
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| CN108534661A (en) * | 2018-03-30 | 2018-09-14 | 山东高速科技发展集团有限公司 | A kind of strain transducer and its application method of monitoring asphalt pavement rut compressive strain |
| CN111910440B (en) * | 2020-08-06 | 2021-07-09 | 安丹达工业技术(上海)有限公司 | Formula for cracking foam coating and fabric with cracking foam coating |
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| CN104999823A (en) * | 2015-08-04 | 2015-10-28 | 任福海 | Gilded film with metal burst effect and manufacturing process thereof |
| CN105482384A (en) * | 2015-12-29 | 2016-04-13 | 深圳华力兴新材料股份有限公司 | High-formability PET (polyethylene terephthalate) engineering plastic and preparation method thereof |
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Address after: 523000 Daojiao Town, Dongguan City, Guangdong Province Changping Baidai Industrial Park Applicant after: DONGGUAN TIANYI NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 523000 Daojiao Town, Dongguan City, Guangdong Province Changping Baidai Industrial Park Applicant before: TIN YI LEATHER CO.,LTD. |
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Address after: 516699 No. 004, pinqinghu Enterprise Service Center, No. 1, Dongcheng Road, Dongpu, Shanwei City, Guangdong Province Patentee after: Guangdong Tianyi new material technology Co.,Ltd. Address before: 523000 Daojiao Town, Dongguan City, Guangdong Province Changping Baidai Industrial Park Patentee before: DONGGUAN TIANYI NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A production process for preparing leather from two-layer sheepskin embryo Effective date of registration: 20220711 Granted publication date: 20190521 Pledgee: SHANWEI RURAL COMMERCIAL BANK Co.,Ltd. Pledgor: Guangdong Tianyi new material technology Co.,Ltd. Registration number: Y2022440000158 |