CN101746203B - Preparation method of wire drawing decorative film - Google Patents

Preparation method of wire drawing decorative film Download PDF

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Publication number
CN101746203B
CN101746203B CN 200910175221 CN200910175221A CN101746203B CN 101746203 B CN101746203 B CN 101746203B CN 200910175221 CN200910175221 CN 200910175221 CN 200910175221 A CN200910175221 A CN 200910175221A CN 101746203 B CN101746203 B CN 101746203B
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China
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roll
wire
base
decorative
layer
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CN 200910175221
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Chinese (zh)
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CN101746203A (en
Inventor
罗超
刘彦峰
任卫强
王佃飞
尚秋鸣
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保定乐凯新材料股份有限公司
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Publication of CN101746203A publication Critical patent/CN101746203A/en
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Abstract

The invention relates to a preparation method of wire drawing decorative film, the decorative film is composed of a substrate, a multi-functional layer, a decorative layer and a sticking layer which are sequentially overlapped, surface wire drawing is carried out to the substrate to form a wire-drawing linear surface, the wire drawing procedure is carried out on a surface wire drawing machine, a roll pair is arranged on the surface wire drawing machine, the substrate penetrates through the roll pair, and the roll pair is composed of an upper roll and a lower roll, raised lines are arranged on the surface of the lower roll, the linear velocity difference between the upper roll and the lower roll is 50-150m/min, the upper roll and the lower roll are drive rolls, and the speed of the upper and the speed of the substrate are simultaneous. In the preparation method, the obtained wire drawing decorative film has good performance and low cost, is suitable for the processing technology of surface decoration of various plastic pieces and can be widely applied to the decoration of the plastic pieces such as home appliances, mobile phones and automobiles and the like.

Description

A kind of preparation method of wire drawing decorative film
Technical field
The present invention relates to a kind of decorating film, particularly have the decorating film of wire drawing effect.
Background technology
Along with the development of society, parts such as household electrical appliance, automobile, mobile phone have all adopted working of plastics in a large number, and the requirement of its incrustation is more and more higher.At present, the working of plastics surface metalation is decorated and is adopted plating, vacuum deposition process or hot transfer foil.The electroplating technology production environment is relatively poor, and is unfavorable to workers ' health, and to the having relatively high expectations of working of plastics, no longer adopt in a lot of fields.Vacuum deposition process makes fast progress in the film field in recent years, but higher to the processing charges of moulding plastic.And transfer film is dry process technology, can realize multiple decorative effect, is conducive to environmental protection, can both adopt on present most of household electrical appliances, automobile, the mobile phone component.Adopt the decorating film structure of this technology complicated; transfer coated generally all more than four layers; its structure sheaf comprises: carry base, release layer, protective layer, decorative layer and adhesive layer; some product also comprises supporting layer or adhesive force promoting layer between decorative layer and adhesive layer; these product structures are more complicated; the production cost height, the manufacturing process complexity.
Application number is that 200810079885.3 Chinese patent discloses a kind of decorating film, and this decorating film comprises base material, decorative layer, adhered layer and multi-functional layer, but this product does not have the wire drawing effect.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of preparation method of wire drawing decorative film, and its drawing process is simple, and the decorate properties of the decorating film that obtains is good, cost is lower.
For addressing the above problem, the technical scheme that the present invention takes is:
A kind of preparation method of wire drawing decorative film, described decorating film is made up of base material, multi-functional layer, decorative layer and the adhered layer together of superimposed preparation successively, and described base material carries out surperficial wire drawing, and formation has the surface of wire streakline; Wire-drawing process is finished at surperficial wire drawing machine, at surperficial wire drawing machine pair roller is set, base material is by passing in the pair roller, pair roller is made up of top roll and lower roll, the streakline of projection is set on the surface of lower roll, linear differential between described top roll and the lower roll is 50~150m/min, and top roll and lower roll all are drive rolls, and wherein top roll and base material speed are synchronous.
The preparation method of above-mentioned wire drawing decorative film, described pair roller is 0.2~0.6MPa to the pressure of base material.
The preparation method of above-mentioned wire drawing decorative film, the streakline of described lower roll is straight line, surface line density is 5~100/mm.
The preparation method of above-mentioned wire drawing decorative film, described top roll and lower roll rotate in the same way.
The preparation method of above-mentioned wire drawing decorative film, described base material thickness is 15~50 microns.
The preparation method of above-mentioned wire drawing decorative film, described multi-functional layer adopts the raw material of following weight parts to make:
Polymethyl methacrylate 45.0;
Phenylethylene-maleic anhydride resin 50.0;
Dimethyl silicone polymer 5.0;
Ethyl acetate 300;
Toluene 400;
Butanone 700.
In order to obtain having the decorating film of wire drawing effect, can obtain by base material being carried out the wire drawing processing.Cause the part of multi-functional layer to come off easily if carry out the wire drawing processing to multi-functional layer, the fine and closely woven degree of wire drawing is difficult to hold, and through the whole decorative effect of influence after the wire drawing processing.Handle and base material is carried out wire drawing, avoided above-mentioned generation of defects, to the not influence of whole decorative effect, so the present invention has adopted base material is carried out the wire drawing processing.
The base material of the wire drawing decorative film among the present invention is polyester film (PET), and the thickness of base material is 15~50 microns, is preferably 20~30 microns.If the thickness of base material is less than 15 microns, then the undercapacity of base material causes base material to disconnect in the wire drawing processing procedure easily; If thickness is greater than 50 microns, then product is in the thermoprint process, and heat can not be delivered to adhered layer well, influences the attachment fastness of thermoprint, also increases product cost.Thickness is that 15~50 microns base material, especially thickness are 20~30 microns base material, and its intensity satisfies the wire drawing requirement, is conducive to the application processing of product.
Accompanying drawing 1 has shown the structural representation of wire drawing machine, it comprises pair roller wire drawing part, cleaning part and drying nest, it utilizes top roll and lower roll that substrate surface is carried out wire drawing and handles, the surface wire drawing is realized by the speed difference friction of top roll, lower roll and base material, top roll and base material are synchronous, and the speed difference between two rollers is 50~150m/min.Speed difference is during less than 50m/min, and the wire drawing uniformity of substrate surface is bad and the phenomenon of broken string arranged; Speed difference is during greater than 150m/min, and the bad control of the tension force of system for drawing causes base material sideslip or disconnection easily, has destroyed the regularity of wire drawing and the stability of production.Speed difference is in 50~150m/min scope, and uniformity and the regularity of wire drawing effect are better, and stable processing technique is conducive to serialization production.
Pressure differential between top roll and the lower roll influences the wire drawing degree of depth of base material, and finally influences the wire drawing effect.Among the present invention, the pressure of top roll and lower roll is controlled by cylinder, and pressure differential is 0.2~0.6MPa.When pressure differential causes the degree of depth deficiency of wire drawing, surperficial wire drawing DeGrain during less than 0.2MPa easily; When pressure differential during greater than 0.6MPa, frictional force is bigger between lower roll and base material, causes the base material distortion easily.
Equally, the line density of lower roll also influences the wire drawing effect.The selection of line density determines by the wire drawing effect, and the thicker wire drawing effect then line density of lower roll is little, and the line density of careful wire drawing effect requirements lower roll is big, and the line density of the lower roll among the present invention is 5~100/mm.If the line density of lower roll is less than 5/mm, then the pressure differential of wire drawing processing requirements is bigger, and pressure differential causes the base material distortion too greatly easily; If the line density of lower roll is greater than 100/mm, then processing cost is higher, and wire drawing degree of depth deficiency, influences the wire drawing effect, can not satisfy production requirement.The line density of lower roll can satisfy the wire drawing requirement of different depth in 5~100/mm scope, and can cooperate preferably with speed difference, pressure differential between the roller.
The degree of depth of lower roll surface strain line is lower than 10 microns at the 10-50 micron, and is higher to processing request, realizes that cost is higher, greater than 50 microns, can cause in the degree of depth of substrate surface wire drawing excessive, unfavorable to the coating film forming of back coating.
When by top roll and lower roll substrate surface being carried out the wire drawing processing, top roll and lower roll can be in the same way, also can be reverse, preferably in the same way, because under condition in the same way, can adopt bigger pressure differential and can not cause distortion and the disconnection of base material, but under the reverse conditions, when pressure differential is big, cause base material distortion or disconnection easily.
When wire drawing was handled, top roll was rubber roll, and lower roll is the metal wire roller, and accompanying drawing 2 is the schematic surface of lower roll.
After the substrate surface wire drawing is handled, produce the dirt chip and accumulate static at substrate surface easily, behind top roll and lower roll, need to clean and drying.Be service sink as 3 among Fig. 1, clean and adopt water and ultrasonic cleaning combination, so both removed the chip of generation, eliminated static again, be conducive to follow-up coating again.Dry employing infra-red drying because infra-red drying technology is simple and reduced the requirement of drying process to dry road length, does not influence back processing and properties of product, and 4 in the accompanying drawing 1 is the hothouse signal.
Multi-functional layer has the function of peeling off and defencive function, and it can be peeled off from base material when transfer printing molded, forms protective layer on the decorative layer surface after the transfer printing.This multi-functional layer also can add special pigment with decorative layer is compounded to form decorative effect, also can add man-hour additional hologram or transfer printing after table print other picture and text.The thickness of multi-functional coatings is 1.0~5.0 μ m, preferably 1.0~3.0 μ m.Coating methods such as it can be coated with by reverse roll, notch board coating, anilox roll coating, the coating of Fructus Hordei Germinatus rod are coated on substrate surface.
In order to make multi-functional layer have above-mentioned performance, component and the parts by weight thereof of multi-functional layer are: acrylic resin 25.0~75.0; Functional resin 15.0~45.0; Organic siliconresin 5.0~10.0; Auxiliary agent 0~10.0; Solvent 1000~1500.
Acrylic resin is the matrix resin of coating, and its effect is weatherability, alcohol resistance and the transparency that improves coating, and adjusts hardness and the fragility of multi-functional coatings.Described acrylic resin can be thermoplastic acrylic resin or crosslinked acrylic resin.Wherein, thermoplastic acrylic acid has excellent alcohol resistance and excellent compatibility, being fit to thermoplastic acrylic resin of the present invention can be polymethyl methacrylate, methyl methacrylate/ethyl ester copolymer or methyl methacrylate/positive butyl ester copolymer, thermoplastic acrylic acid A11 as ROHM AND HAAS, A21, B99, E-2045, E-2046, the E-2016 of the color special company of fine jade, the MB2952 of mitsubishi chemical industry, BR73, BR106 etc.; Crosslinked acrylic resin can be Hydroxylated acrylic resin or ultraviolet curing acrylic resin.The Hydroxylated acrylic resin that is suitable for inventing is the acrylic copolymer of hydroxyl, as FS-2970, the FS2050 etc. of the modest chemical industry of moral or state Longhua worker's 821-60,828-7,886-70 etc.; Being suitable for light-cured acrylic resin of the present invention is the light-cured acrylic oligomer, as CN2302, the CN2304 etc. of Sartomer company or the ALMATEX 208 of Mitsui chemistry etc.
The effect of functional resin is the hear resistance that improves coating, to guarantee the high glaze of decorative layer, improves its solvent resistance simultaneously.Described functional resin can be styrene-maleic anhydride copolymer, celluosic resin, isocyanate resin, one or more in the amino resins.The heat resisting temperature that isocyanate resin and above-mentioned carboxylic acid resin cooperate to guarantee coating is at 120 ℃~130 ℃, is fit to isocyanate resin of the present invention and can is polyurethanes or HDI prepolymer, MDI prepolymer.Styrene-maleic anhydride copolymer (SMA) cooperates with above-mentioned acrylic resin, can make the heat resisting temperature of coating reach 140 ℃~150 ℃, be fit to styrene-maleic anhydride copolymer of the present invention and be high Tg type (Tg>150 ℃), as the SMA1000 of Sartomer company, SMA1000P etc.Amino resins cooperates with above-mentioned Hydroxylated acrylic resin, and the heat resisting temperature of coating is reached about 160 ℃, is the amino resins that rapid draing is solidified but be fit to amino resins of the present invention, as 582-2 type amino resins.The adding of celluosic resin can improve hardness and the fragility of coating, and the situation of peeling off after the adjustment thermoprint, be fit to celluosic resin of the present invention and comprise cellulose acetate-butyrate (CAB), cellulose-acetate propionate (CAP) or nitrocellulose (NC), as the CAB381 of Yi Shi Man, CAP482 etc.
The effect of organic siliconresin is the levelability that improves multi-functional layer coating, surface anti sticking company property after thermoprint stripping performance and the transfer printing, anti-scratching wearproof, being fit to organic siliconresin of the present invention can be dimethyl silicone polymer, as DC11, the DC14 of Dow Corning Corporation, DC18 etc.
The effect of auxiliary agent is to promote coating rapid draing to solidify, it is acid catalyst, initator or curing accelerator, be applicable to that acid catalyst of the present invention can be p-methyl benzenesulfonic acid, as AKTIV AD3302, the AKTIVBD7741 etc. of Guangzhou Ou Peng chemical industry Co., Ltd; Be applicable to that curing accelerator of the present invention can be laurate two fourth tin or butyl laurate two fourth tin.Be applicable to that light trigger of the present invention can be I type light trigger, as the Irgacure@1000 of Ciba.
Decorative layer can be metal level, wood grain layer or fluorescence coating, wherein, metal level mold pressing partial holography is as requested decorated picture and text, and it can deposit on the multi-functional layer by vacuum evaporation or vacuum sputtering, and wood grain layer and fluorescence coating can be coated on the multi-functional layer by coating method.
Adhered layer has splendid adhering to decorative layer, and the base material decorated such as PMMA, ABS, PS, PC, PVC etc. are had good adhesion effect, and this adhered layer is the hot pressing activated form, and its thickness is 1 μ m to 5 μ m.Being fit to adhered layer of the present invention is the acrylic resin copolymer, the cooperation of polyamide or mylar, and filler is silica or titanium dioxide.Coating methods such as adhered layer can be coated with by reverse roll, notch board coating, anilox roll coating, the coating of Fructus Hordei Germinatus rod are coated on the decorative layer.
Wire drawing decorative film of the present invention can prepare by following method:
Be that 50~150m/min, pressure differential are that the surface line density of 0.2~0.6MPa, lower roll is under the condition of 5~100/mm at speed difference, by top roll and lower roll substrate surface carried out wire drawing and handle, clean then and dry; Be coated with multi-functional layer by modes such as the coating of Fructus Hordei Germinatus rod, notch board coating, anilox roll coating, reverse roll coatings, and then applied decorative layer and adhesive linkage, wire drawing decorative film obtained.
Compare with product with prior art, the preparation method of the wire drawing decorative film that provides of the present invention, its drawing process is simple, the decorating film that obtains simple in structure, decorate properties is good, cost is low, be suitable for existing flat method, boiling hot method, dummy slider injection moulding, the in-mold transfer printing etc. of scalding to the processing technology of working of plastics incrustation, can be widely used in the decoration of working of plastics such as household electrical appliances, mobile phone, automobile.
Description of drawings
Fig. 1 is treatment process schematic diagram of the present invention;
Fig. 2 is the surperficial streakline schematic diagram of lower roll.
Each label is among the figure: 1. top roll; 2. lower roll; 3. service sink; 4. hothouse; 5. base material.
The specific embodiment
The present invention will be further described below in conjunction with embodiment.
Among following each embodiment, multi-functional layer adopts following prescription (weight portion), but is not limited thereto.
Polymethyl methacrylate 45.0;
Phenylethylene-maleic anhydride resin 50.0;
Dimethyl silicone polymer 5.0;
Ethyl acetate 300;
Toluene 400;
Butanone 700;
Embodiment 1
Adopt the PET base material of 15 micron thickness, under the following conditions the PET substrate surface being carried out wire drawing handles: base material speed is 80m/min, top roll and base material are synchronous, speed is 80m/min, lower roll and top roll are in the same way, speed is 20m/min (speed difference is 60), and the pressure differential of top roll and lower roll is 0.4MPa, and the surface line density of lower roll is selected 10/mm for use.On this base material be 2.0 microns multi-functional layer then by anilox roll coating method coating thickness.
Vacuum evaporation metal level on multi-functional layer on metal level is 3 microns adhered layer again by anilox roll coating method coating thickness, obtains wire drawing decorative film, carries out performance test then.
Embodiment 2
Adopt the PET base material of 20 micron thickness, under the following conditions the PET substrate surface being carried out wire drawing handles: base material speed is 100m/min, top roll and base material are synchronous, speed is 100m/min, lower roll and top roll are in the same way, speed is 50m/min (speed difference is 50), and the pressure differential of top roll and lower roll is 0.3MPa, and the surface line density of lower roll is selected 15/mm for use.On this base material be 2.0 microns multi-functional layer then by anilox roll coating method coating thickness.
Vacuum evaporation metal level on multi-functional layer on metal level is 3 microns adhered layer again by anilox roll coating method coating thickness, obtains wire drawing decorative film, carries out performance test then.
Embodiment 3
Adopt the PET base material of 30 micron thickness, under the following conditions the PET substrate surface being carried out wire drawing handles: base material speed is 60m/min, top roll and base material are synchronous, speed is 60m/min, lower roll and top roll are reverse, speed is 10m/min (speed difference is 70), and the pressure differential of top roll and lower roll is 0.2MPa, and the surface line density of lower roll is selected 100/mm for use.On this base material be 2.0 microns multi-functional layer then by anilox roll coating method coating thickness.
Vacuum evaporation metal level on multi-functional layer on metal level is 3 microns adhered layer again by anilox roll coating method coating thickness, obtains wire drawing decorative film, carries out performance test then.
Embodiment 4
Adopt the PET base material of 50 micron thickness, under the following conditions the PET substrate surface being carried out wire drawing handles: base material speed is 160m/min, top roll and base material are synchronous, speed is 160m/min, lower roll and top roll are in the same way, speed is 10m/min (speed difference is 150), and the pressure differential of top roll and lower roll is 0.6MPa, and the surface line density of lower roll is selected 5/mm for use.On this base material be 2.0 microns multi-functional layer then by anilox roll coating method coating thickness.
Vacuum evaporation metal level on multi-functional layer on metal level is 3 microns adhered layer again by anilox roll coating method coating thickness, obtains wire drawing decorative film, carries out performance test then.
Embodiment Definition Paste fastness The alcohol resistance scrubbing number of times Integrality is shifted in thermoprint
Embodiment 1 Qualified Qualified ??>50 Noresidue on the base material
Embodiment 2 Qualified Qualified ??>50 Noresidue on the base material
Embodiment 3 Qualified Qualified ??>50 Noresidue on the base material
Embodiment 4 Qualified Qualified ??>50 Noresidue on the base material
The method of testing of definition is with reference to the method for testing of BB/T 0031-2006.
Paste the method for testing of fastness: under boiling hot 150~200 ℃ of conditions, with plane gold stamping machine with the sample thermoprint to the ABS plastic, then tape base is peeled, after drawing lattice with hundred lattice cuttves, paste with adhesive tape, place and tore in about one minute, decorative cover keeps gloss, do not peel off be qualified.
The alcohol resistance scrubbing method of testing: sample is flat boiling hot or boiling hot on ABS plastic spare, adopt the instrument of anti-solvent wiping dress alcohol, heavy burden 500g, wiping is once to calculate back and forth.
By data in the table as can be seen, the wire drawing decorative film performance that obtains after the substrate surface wire drawing processing is met the requirements, so both reduced the coating number of plies in the manufacture process, reduced raw-material consumption and manufacturing cost again.

Claims (6)

1. the preparation method of a wire drawing decorative film, described decorating film is made up of base material, multi-functional layer, decorative layer and the adhered layer together of superimposed preparation successively, described multi-functional layer has the function of peeling off and defencive function, can peel off from base material when transfer printing molded, can form protective layer on the decorative layer surface after the transfer printing, it is characterized in that, carry out surperficial wire drawing at described base material, formation has the surface of wire streakline, wire-drawing process is finished at surperficial wire drawing machine, at surperficial wire drawing machine pair roller is set, base material is by passing in the pair roller; Pair roller is made up of top roll (1) and lower roll (2), the streakline of projection is set on the surface of lower roll (2), linear differential between described top roll (1) and the lower roll (2) is 50~150 m/min, and top roll (1) and lower roll (2) all are drive rolls, and wherein top roll (1) is synchronous with base material speed.
2. according to the preparation method of the described wire drawing decorative film of claim 1, it is characterized in that: described pair roller is 0.2~0.6 MPa to the pressure of base material.
3. according to the preparation method of the described wire drawing decorative film of claim 2, it is characterized in that: the streakline of described lower roll (2) is straight line, and surface line density is 5~100/mm.
4. according to the preparation method of the described wire drawing decorative film of claim 3, it is characterized in that: described top roll (1) and lower roll (2) rotate in the same way.
5. according to the preparation method of the described wire drawing decorative film of claim 4, it is characterized in that: described base material thickness is 15~50 microns.
6. according to the preparation method of claim 1,2,3,4 or 5 described wire drawing decorative films, it is characterized in that: described multi-functional layer adopts the raw material of following weight parts to make:
Polymethyl methacrylate 45.0,
Phenylethylene-maleic anhydride resin 50.0,
Dimethyl silicone polymer 5.0,
Ethyl acetate 300,
Toluene 400,
Butanone 700.
CN 200910175221 2009-11-25 2009-11-25 Preparation method of wire drawing decorative film CN101746203B (en)

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Application Number Priority Date Filing Date Title
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CN101746203B true CN101746203B (en) 2013-07-03

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102009508B (en) * 2010-10-21 2012-12-12 东莞光群雷射科技有限公司 Process for producing film with brushed lines
CN102643585A (en) * 2012-04-18 2012-08-22 上海维凯化学品有限公司 Laser electrolytic aluminum coating composition and preparation method thereof
CN102658742B (en) * 2012-05-11 2014-07-16 保定乐凯新材料股份有限公司 Transfer print type decorative film suitable for cold wave technology
CN102851715B (en) * 2012-09-27 2014-12-31 厦门建霖工业有限公司 Method for directly plating plastic with drawn wire appearance
CN105172453B (en) * 2015-08-13 2017-12-08 宁波雅歌新材料科技有限公司 A kind of preparation method of drawing film
CN107399177A (en) * 2016-05-19 2017-11-28 嘉兴艾森压烫科技有限公司 One kind reversion wire drawing blocking film and preparation method thereof
CN106114045A (en) * 2016-06-23 2016-11-16 温州晨辉包装材料有限公司 Efficient stable imitates the processing method of metal wire-drawing decorating film

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KR20060071968A (en) * 2004-12-22 2006-06-27 용강호 Transfer sheet film using highlight vapeur deposition
CN2907504Y (en) * 2006-05-15 2007-06-06 毛昱峰 Shell coated with film of saucepan using slow fire
CN201020894Y (en) * 2007-02-08 2008-02-13 林建东 Environment-friendly type wire-drawing aluminum foil filming sheet
CN201128344Y (en) * 2007-12-29 2008-10-08 佛山美利澳电器科技有限公司 Intimating metal drawing sticking film
CN101417579A (en) * 2008-12-03 2009-04-29 中国乐凯胶片集团公司 Decorating film

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Publication number Priority date Publication date Assignee Title
KR20060071968A (en) * 2004-12-22 2006-06-27 용강호 Transfer sheet film using highlight vapeur deposition
CN2907504Y (en) * 2006-05-15 2007-06-06 毛昱峰 Shell coated with film of saucepan using slow fire
CN201020894Y (en) * 2007-02-08 2008-02-13 林建东 Environment-friendly type wire-drawing aluminum foil filming sheet
CN201128344Y (en) * 2007-12-29 2008-10-08 佛山美利澳电器科技有限公司 Intimating metal drawing sticking film
CN101417579A (en) * 2008-12-03 2009-04-29 中国乐凯胶片集团公司 Decorating film

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