CN104018359B - Surface self-extinction artificial leather material - Google Patents
Surface self-extinction artificial leather material Download PDFInfo
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- CN104018359B CN104018359B CN201410239815.5A CN201410239815A CN104018359B CN 104018359 B CN104018359 B CN 104018359B CN 201410239815 A CN201410239815 A CN 201410239815A CN 104018359 B CN104018359 B CN 104018359B
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Abstract
The invention relates to a surface self-extinction artificial leather material. The material comprises a base material consisting of a base cloth and a resin layer, and a surface treatment layer formed by coating treatment mixed liquid on the base material and curing, wherein the curing is performed in sections in sequence, and is respectively performed at 90+-20 DEG C and 100+-20 DEG C; and the treatment mixed liquid is mixed liquid prepared by a polyurethane component A, a polyurethane component B, a polyurethane component C and acrylic resin by the ratio of 50-100: 0.1-0.5: 0.01-0.1: 50-100. The artificial leather material has an excellent surface self-extinction effect, and overcomes the characteristic of weak scrape resistance caused by traditional additive delustering agent; and as a ladder-shaped drying temperature design is adopted, the attachment firmness of the treatment layer is largely improved compared with existing traditional products, and the cleanness resistance and the pollution resistance of the products can be improved to a certain extent.
Description
Technical field
The present invention relates to the technical field of chemical materials, more particularly, the present invention relates to a kind of surface from delustring artificial leather material.
Background technology
Delustring waterborne polyurethane coating agent is a kind of staple product in leather finishing agent, be mainly used in top finishing, its performance characteristics is good physical performance, comfortable feel, there is water-fast, solvent resistance, light fastness stability energy, wear-resisting Bearable dry and wet wipe performance preferably.Must have good eliminate optical property and storage stability in addition, require after covering with paint that the graining of leather, pore are clear, have lower glossiness, film forming has good penetrating outward appearance.
The delustring mechanism of surface dulling mainly has higher roughness in its film surface, thus light is carried out scattering to each different directions, reaches extinction effect.In the prior art, leather finishing agent manufacturer, when producing extinction type aqueous polyurethane product, for reaching good eliminate optical property, generally all needs additional delustering agent to realize, as added silica-based flatting silica, delustring wax etc.; The structure of this product exemplarily can be represented by accompanying drawing 1, and this product is made up of base cloth 1, resin bed 2 and surface-treated layer 3; Described surface-treated layer 3 has granular materials 4, and the particle sizing relying on these to expose can give described product extinction effect, but the particle exposed also cause simultaneously the scraping and wiping resistance performance of product and resistance to clean-up performance poor.
Summary of the invention
In order to solve above-mentioned technical problem existing in prior art, the object of the present invention is to provide a kind of surface from delustring artificial leather material.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of surface is from delustring artificial leather material, comprise the base material be made up of Ji Bu and resin bed, and coating processes mixed liquor and the surface-treated layer solidify to form on base material, it is characterized in that: described solidification is that segmentation carries out ground successively, it is respectively at 90 ± 20 DEG C, and 100 ± 20 DEG C are cured.
Wherein, the mixed liquor that is made up of polyurethane component A, polyurethane component B, polyurethane component C and acrylic resin of described process mixed liquor; Wherein, the mass ratio of described polyurethane component A, polyurethane component B, polyurethane component C and acrylic resin is 50 ~ 100:0.1 ~ 0.5:0.01 ~ 0.1:50 ~ 100.
Wherein, described resin bed is polyvinyl chloride resin layer or urethane resin layer.
Wherein, described base material is prepared by following steps: 1) component containing Corvic, mixed plasticizer, filler, heat-resisting stabilizing agent and pigment mixed in high speed dispersion mixer, whipping temp 120 ~ 130 DEG C; 2) material mixed is entered carry out in banbury mixing, melting temperature is 130 ~ 150 DEG C, then be expelled on opening rubber mixing machine, plasticated under the temperature conditions of 120 ~ 130 DEG C by two opening rubber mixing machines successively, then be delivered in four-roll calender and be rolled into the sheet material of thickness at 0.5 ± 0.1mm, then 3 are fitted in) scrim surfaces, the temperature of calender operation is 165 ~ 170 DEG C, laminate pressure >=1T; Sent in foaming machine or embossing machine after heating by semi-finished product after calender lamination, under the state of heat, carry out embossing to product, then through cooling and shaping, operations for forming temperature is 180 ~ 190 DEG C.
Wherein, described base material is prepared by following steps: be coated in release liners after the component containing Corvic, mixed plasticizer, filler, heat-resisting stabilizing agent and pigment being mixed, a coating binding agent after super-dry or foaming, afterwards the material of Ji Bu and coated binding agent is carried out compound after drying, release liners to be peeled off, obtain described base material, wherein, bake out temperature is 150 ~ 210 DEG C.
Wherein, described base material is prepared by following steps: be applied in release liners after the component containing polyurethane resin, solvent, filler, processing aid and pigment being mixed, a coating binding agent after super-dry or foaming, afterwards the material of Ji Bu and coated binding agent is carried out compound after drying, release liners to be peeled off, obtain described base material, wherein, bake out temperature is 120 ~ 170 DEG C.
Compared with prior art, surface of the present invention has following useful technique effect from delustring artificial leather material:
Surface of the present invention has extremely excellent surface from extinction effect from delustring artificial leather material surface, overcome the feature of the scratch resistance poor performance that traditional addition type delustering agent brings, and owing to have employed the design of stair-stepping bake out temperature, make the attachment fastness of processing layer more in the past traditional product have a very significant increase, resistance to cleaning capacity and the antipollution effect of product can be improved to a certain extent.
Accompanying drawing explanation
Fig. 1: the surface of prior art is from the schematic cross-section of delustring artificial leather material.
Fig. 2: surface of the present invention is from the schematic cross-section of delustring artificial leather material.
Detailed description of the invention
Below in conjunction with accompanying drawing, surface of the present invention is described in detail from the composition of delustring artificial leather material, function and preparation method etc.
As shown in Figure 1, surface of the present invention is from delustring artificial leather material, comprise the base material be made up of base cloth 10 and resin bed 20, and coating processes mixed liquor and the surface-treated layer 30 solidify to form on base material, described solidification is that segmentation carries out ground successively, it is respectively at 90 ± 20 DEG C, and 100 ± 20 DEG C are cured, and the thickness of the surface-treated layer of formation is 0.1 ~ 5 micron; The surface-treated layer 30 formed forms irregular surface texture, thus defines diffuse reflection, create extinction effect, owing to there is no the impact of external additive, surface not only hardness is higher, and scratch resistance is good, has good antipollution and resistance to clean effect.In the present invention, described resin bed can be polyvinyl chloride resin layer or urethane resin layer.Table 1 gives three kinds of compositions of the raw material as the resin bed in base material.The production technology of described three kinds of base materials is as follows respectively:
The raw material composition of resin bed in table 1 base material
Base material is production technology 1.:
1) mix: by material 1) inner all formula materials mix in high speed dispersion mixer, whipping temp 120 DEG C ~ 130 DEG C, mixing time 180s;
2) calendering formation: the material mixed is entered carry out in banbury mixing, melting temperature 130 DEG C ~ 150 DEG C mixing time 250s, then be expelled on opening rubber mixing machine, carry out plasticating after 15min under the temperature conditions of 120 DEG C ~ 130 DEG C by two opening rubber mixing machines successively, be delivered in four-roll calender and be rolled into the sheet material of thickness at 0.5mm ± 0.1mm, then 3 are fitted in) scrim surfaces, calender operating condition temperature 165 DEG C ~ 170 DEG C, speed of production 30m/min, laminate pressure >=1T.
3) thermoforming: the semi-finished product after calender lamination are sent into after heating in foaming machine or embossing machine, under the state of heat, embossing is carried out to product, then through cooling and shaping, operations for forming Conditions Temperature 180 DEG C ~ 190 DEG C, speed of production 10m/min, logical cooling water in knurling rolls.
Base material is production technology 2.
1) by material 1) inner all formula materials are coated in release liners after mixing, after drying room drying (or foaming), apply a binding agent again, afterwards 3) material of Ji Bu and coated binding agent carries out compound, after drying again, release liners peeled off, obtain the dry-press process base material being compounded with base cloth, wherein drying room temperature 150 DEG C-210 DEG C, speed (15 ± 20) m/min, base material coils into large volume after cooling.
Base material is production technology 3.
1) by material 2) inner all formula materials are coated in release liners after mixing, after drying room drying (or foaming), apply a binding agent again, afterwards 3) material of Ji Bu and coated binding agent carries out compound, after drying again, release liners peeled off, obtain the dry-press process base material being compounded with base cloth, wherein drying room temperature 120 DEG C-170 DEG C, speed (15 ± 20) m/min, base material coils into large volume after cooling.
Below with reference to specific embodiment, surface-treated layer of the present invention and technique thereof are introduced: process mixed liquor described in the present invention by proportioning be polyurethane component A, the polyurethane component B of 50 ~ 100:0.1 ~ 0.5:0.01 ~ 0.1:50 ~ 100, the mixed liquor that forms of polyurethane component C and acrylic resin.Wherein said polyurethane component A is by 4,4, and-methyl diphenylene diisocyanate (4,4 ,-MDI), polyester polyol, chain extender, catalyst, deionized water and surfactant form.Described polyurethane component B is made up of IPDI, polyether polyol, amine terminated polyether, chain extender, catalyst and deionized water.Described polyurethane component C is made up of IPDI, polyether polyol, terminal hydroxy group hydrogenated butadiene polymer, chain extender, catalyst and deionized water.Described chain extender is selected from least one in ethylene glycol, diethylene glycol (DEG), propylene glycol, dipropylene glycol, BDO, 1,3-BDO, 1,5-PD or ethylenediamine, is preferably ethylene glycol.Described catalyst is selected from least one in two stannous octoates, two sad dibutyl tins, dibutyl tin laurate, dibutyltin diacetate.Described polyester polyol is adipic acid system polyester-diol, such as PEBA-1500, and its hydroxyl value is 71 ~ 79mgKOH/g.Described polyether polyol is polytrimethylene ether glycol (DuPont Cerenol H series).Described acrylic resin is preferably water-borne acrylic resin (OPP-2).Described amine terminated polyether is the amine terminated polyether (Air products Versalink P-250) of virtue amino.Described terminal hydroxy group hydrogenated butadiene polymer end hydroxy butadiene catalytic hydrogenation to be obtained hydrogenation end hydroxy butadiene product (the Krasol HLBH-P3000 of Sartomer company of the U.S.)
Embodiment 1
In the present embodiment, described polyurethane component A is prepared by following steps: by 4 of 15.0 weight portions, the dibutyl tin laurate mixing of the PEBA-1500 of 4 ,-MDI, 8.0 weight portions, the ethylene glycol of 2.2 weight portions, 0.1 weight portion, then reacts 2.5 hours at 60 DEG C; Reactant liquor adds the deionized water of 36 weight portions and the dodecyl sodium sulfate of 0.8 weight portion after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component A.Described polyurethane component B is prepared by following steps: mixed by the dibutyl tin laurate of the amine terminated polyether of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 12.0 weight portions, 6.0 weight portions, 2.8 weight portions, 1.2 weight portions, 0.1 weight portion, then reacts 2.0 hours at 80 DEG C; Reactant liquor adds the deionized water of 30 weight portions and the dodecyl sodium sulfate of 1.0 weight portions after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component B.Described polyurethane component C is prepared by following steps: mixed by the dibutyl tin laurate of the terminal hydroxy group hydrogenated butadiene polymer of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 15.0 weight portions, 6.0 weight portions, 2.0 weight portions, 2.0 weight portions, 0.1 weight portion, then reacts 2.0 hours at 80 DEG C; Reactant liquor adds the deionized water of 32 weight portions and the dodecyl sodium sulfate of 1.0 weight portions after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component C.The water-borne acrylic resin of the polyurethane component B of the polyurethane component A of 50 weight portions, 0.5 weight portion, the polyurethane component C of 0.1 weight portion and 50 weight portions is heated to 50 ~ 60 stirrings, disperses within 1.0 hours, to obtain processing mixed liquor.Then on base material, be coated with above-mentioned process mixed liquor, then 90 DEG C of solidification process 1 minute, solidify process again 1 minute at 100 DEG C afterwards; Form the surface-treated layer that thickness is about 0.5mm.
Embodiment 2
In the present embodiment, described polyurethane component A is prepared by following steps: by 4 of 15.0 weight portions, the dibutyl tin laurate mixing of the PEBA-1500 of 4 ,-MDI, 8.0 weight portions, the ethylene glycol of 2.2 weight portions, 0.1 weight portion, then reacts 2.5 hours at 60 DEG C; Reactant liquor adds the deionized water of 36 weight portions and the dodecyl sodium sulfate of 0.8 weight portion after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component A.Described polyurethane component B is prepared by following steps: mixed by the dibutyl tin laurate of the amine terminated polyether of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 12.0 weight portions, 6.0 weight portions, 2.8 weight portions, 1.2 weight portions, 0.1 weight portion, then reacts 2.0 hours at 80 DEG C; Reactant liquor adds the deionized water of 30 weight portions and the dodecyl sodium sulfate of 1.0 weight portions after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component B.Described polyurethane component C is prepared by following steps: mixed by the dibutyl tin laurate of the terminal hydroxy group hydrogenated butadiene polymer of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 15.0 weight portions, 6.0 weight portions, 2.0 weight portions, 2.0 weight portions, 0.1 weight portion, then reacts 2.0 hours at 80 DEG C; Reactant liquor adds the deionized water of 32 weight portions and the dodecyl sodium sulfate of 1.0 weight portions after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component C.The water-borne acrylic resin of the polyurethane component B of the polyurethane component A of 100 weight portions, 0.5 weight portion, the polyurethane component C of 0.1 weight portion and 100 weight portions is heated to 50 ~ 60 stirrings, disperses within 1.0 hours, to obtain processing mixed liquor.Then on base material, be coated with above-mentioned process mixed liquor, then 90 DEG C of solidification process 1 minute, solidify process again 1 minute at 100 DEG C afterwards; Form the surface-treated layer that thickness is about 0.5mm.
Comparative example 1
In this comparative example, described polyurethane component A is prepared by following steps: by 4 of 15.0 weight portions, the dibutyl tin laurate mixing of the PEBA-1500 of 4 ,-MDI, 8.0 weight portions, the ethylene glycol of 2.2 weight portions, 0.1 weight portion, then reacts 2.5 hours at 60 DEG C; Reactant liquor adds the deionized water of 36 weight portions and the dodecyl sodium sulfate of 0.8 weight portion after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component A.Described polyurethane component B is prepared by following steps: mixed by the dibutyl tin laurate of the amine terminated polyether of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 12.0 weight portions, 6.0 weight portions, 2.8 weight portions, 1.2 weight portions, 0.1 weight portion, then reacts 2.0 hours at 80 DEG C; Reactant liquor adds the deionized water of 30 weight portions and the dodecyl sodium sulfate of 1.0 weight portions after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component B.The water-borne acrylic resin of the polyurethane component A of 50 weight portions, the polyurethane component B of 0.5 weight portion and 50 weight portions is heated to 50 ~ 60 stirrings, disperses within 1.0 hours, to obtain processing mixed liquor.Then on base material, be coated with above-mentioned process mixed liquor, then 90 DEG C of solidification process 1 minute, solidify process again 1 minute at 100 DEG C afterwards; Form the surface-treated layer that thickness is about 0.5mm.
Comparative example 2
In this comparative example, described polyurethane component A is prepared by following steps: by 4 of 15.0 weight portions, the dibutyl tin laurate mixing of the PEBA-1500 of 4 ,-MDI, 8.0 weight portions, the ethylene glycol of 2.2 weight portions, 0.1 weight portion, then reacts 2.5 hours at 60 DEG C; Reactant liquor adds the deionized water of 36 weight portions and the dodecyl sodium sulfate of 0.8 weight portion after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component A.Described polyurethane component C is prepared by following steps: mixed by the dibutyl tin laurate of the terminal hydroxy group hydrogenated butadiene polymer of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 15.0 weight portions, 6.0 weight portions, 2.0 weight portions, 2.0 weight portions, 0.1 weight portion, then reacts 2.0 hours at 80 DEG C; Reactant liquor adds the deionized water of 32 weight portions and the dodecyl sodium sulfate of 1.0 weight portions after being cooled to room temperature, stir, disperse within 1.0 hours, to obtain described polyurethane component C.The water-borne acrylic resin of the polyurethane component A of 50 weight portions, the polyurethane component C of 0.1 weight portion and 50 weight portions is heated to 50 ~ 60 stirrings, disperses within 1.0 hours, to obtain processing mixed liquor.Then on base material, be coated with above-mentioned process mixed liquor, then 90 DEG C of solidification process 1 minute, solidify process again 1 minute at 100 DEG C afterwards; Form the surface-treated layer that thickness is about 0.5mm.
The artificial leather material surface that embodiment and comparative example obtain has the roughness of concaveconvex structure, and glossiness test shows, above-mentioned artificial leather material all has good extinction effect.
Mechanics Performance Testing
Artificial leather material's sample of embodiment 1 ~ 2 and comparative example 1 ~ 2, carries out performance test.Test result is as shown in table 2 respectively.
Table 2
Show according to Mechanics Performance Testing, surface of the present invention not only has excellent in eliminate optical property from delustring artificial leather material, and by the synergy of polyurethane component B and polyurethane component C, also greatly improves the mechanical property of artificial leather material.
The foregoing is only the preferred embodiments of the present invention; can not be interpreted as limiting scope of the present invention with this, the equivalent distortion made in all scopes claimed at claims of the present invention and the embodiment of change are all in the present invention's scope required for protection.
Claims (5)
1. a surface is from delustring artificial leather material, comprise the base material be made up of Ji Bu and resin bed, and coating processes mixed liquor and the surface-treated layer solidify to form on base material, it is characterized in that: described solidification is that segmentation carries out ground successively, it is respectively at 90 ± 20 DEG C, and 100 ± 20 DEG C are cured; The mixed liquor that described process mixed liquor is made up of polyurethane component A, polyurethane component B, polyurethane component C and acrylic resin; Wherein, the mass ratio of described polyurethane component A, polyurethane component B, polyurethane component C and acrylic resin is 50 ~ 100:0.1 ~ 0.5:0.01 ~ 0.1:50 ~ 100; Described polyurethane component A is prepared by following steps: by 4 of 13.0 ~ 16.0 weight portions, the dibutyl tin laurate mixing of the PEBA-1500 of 4 '-MDI, 7.0 ~ 9.0 weight portions, the ethylene glycol of 2.0 ~ 2.5 weight portions, 0.1 ~ 0.2 weight portion, then reacts 2.0 ~ 3.0 hours at 55 ~ 65 DEG C; Reactant liquor adds the deionized water of 32 ~ 38 weight portions and the dodecyl sodium sulfate of 0.5 ~ 1.2 weight portion after being cooled to room temperature, stir, disperse to obtain described polyurethane component A; Described polyurethane component B is prepared by following steps: mixed by the dibutyl tin laurate of the amine terminated polyether of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 10.5 ~ 13.5 weight portions, 5.0 ~ 7.0 weight portions, 2.5 ~ 3.0 weight portions, 1.0 ~ 1.5 weight portions, 0.1 ~ 0.2 weight portion, then reacts 1.5 ~ 2.5 hours at 75 ~ 85 DEG C; Reactant liquor adds the deionized water of 28 ~ 32 weight portions and the dodecyl sodium sulfate of 0.8 ~ 1.2 weight portion after being cooled to room temperature, obtain described polyurethane component B after stirring, dispersion; Described polyurethane component C is prepared by following steps: mixed by the dibutyl tin laurate of the terminal hydroxy group hydrogenated butadiene polymer of the ethylene glycol of the polytrimethylene ether glycol of the IPDI of 13.5 ~ 16.5 weight portions, 5.0 ~ 7.0 weight portions, 1.5 ~ 2.5 weight portions, 1.8 ~ 2.2 weight portions, 0.1 ~ 0.2 weight portion, then reacts 2.0 hours at 75 ~ 85 DEG C; Reactant liquor adds the deionized water of 30 ~ 35 weight portions and the dodecyl sodium sulfate of 0.8 ~ 1.2 weight portion after being cooled to room temperature, stir, disperse to obtain described polyurethane component C.
2. surface according to claim 1 is from delustring artificial leather material, it is characterized in that: described resin bed is polyvinyl chloride resin layer or urethane resin layer.
3. surface according to claim 1 is from delustring artificial leather material, it is characterized in that: described base material is prepared by following steps: 1) component containing Corvic, mixed plasticizer, filler, heat-resisting stabilizing agent and pigment is mixed in high speed dispersion mixer, whipping temp 120 ~ 130 DEG C; 2) material mixed is entered carry out in banbury mixing, melting temperature is 130 ~ 150 DEG C, then be expelled on opening rubber mixing machine, plasticated under the temperature conditions of 120 ~ 130 DEG C by two opening rubber mixing machines successively, then be delivered in four-roll calender and be rolled into the sheet material of thickness at 0.5 ± 0.1mm, then 3 are fitted in) scrim surfaces, the temperature of calender operation is 165 ~ 170 DEG C, laminate pressure >=1T; Sent in foaming machine or embossing machine after heating by semi-finished product after calender lamination, under the state of heat, carry out embossing to product, then through cooling and shaping, operations for forming temperature is 180 ~ 190 DEG C.
4. surface according to claim 1 is from delustring artificial leather material, it is characterized in that: described base material is prepared by following steps: be coated in release liners after the component containing Corvic, mixed plasticizer, filler, heat-resisting stabilizing agent and pigment is mixed, a coating binding agent after super-dry or foaming, afterwards the material of Ji Bu and coated binding agent is carried out compound after drying, release liners to be peeled off, obtain described base material, wherein, bake out temperature is 150 ~ 210 DEG C.
5. surface according to claim 1 is from delustring artificial leather material, it is characterized in that: described base material is prepared by following steps: be applied in release liners after the component containing polyurethane resin, solvent, filler, processing aid and pigment is mixed, a coating binding agent after super-dry or foaming, afterwards the material of Ji Bu and coated binding agent is carried out compound after drying, release liners to be peeled off, obtain described base material, wherein, bake out temperature is 120 ~ 170 DEG C.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105544235B (en) * | 2015-12-02 | 2017-12-08 | 昆山阿基里斯人造皮有限公司 | A kind of artificial polyvinyl chloride leather production method |
| CN105482057B (en) * | 2015-12-21 | 2018-06-29 | 上海汇得科技股份有限公司 | A kind of soft full polyether-type hydrolysis is low to steep wet polyurethane resin and preparation method thereof |
| CN108300058B (en) * | 2017-09-07 | 2020-10-09 | 惠州长联新材料科技有限公司 | Inorganic matting powder-free water-based matting finishing agent for artificial leather surface treatment and preparation method thereof |
| CN107460741A (en) * | 2017-09-27 | 2017-12-12 | 东莞智国新材料科技有限公司 | The preparation method and product of a kind of composite artificial leather |
| CN110241473B (en) * | 2019-07-24 | 2022-09-02 | 华峰化学股份有限公司 | Preparation method of spandex with lasting aging resistance |
| CN115595804A (en) * | 2021-07-12 | 2023-01-13 | 本田技研工业（中国）投资有限公司（Cn） | Surface treatment film, artificial leather, and automobile seat |
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| CN2379353Y (en) * | 1999-05-18 | 2000-05-24 | 无锡市新区硕放八一塑料厂 | High-effect inner decoration sheet for automobile |
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Inventor after: Zhao Jianming Inventor after: Chen Qing Inventor after: Cheng Feng Inventor after: Lu Qinzhong Inventor after: Xu Qing Inventor after: Chen Jilan Inventor before: Zhao Jianming |
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Address after: 215300, Skylark road 288, Kunshan economic and Technological Development Zone, Jiangsu, Suzhou Patentee after: Kunshan Achilles New Material Technology Co., Ltd Address before: 215300, Skylark road 288, Kunshan economic and Technological Development Zone, Jiangsu, Suzhou Patentee before: Kunshan Achilles Artificial Leather Co., Ltd. |