CN102797195B - Method for reducing organosilicon transfer of release paper - Google Patents

Method for reducing organosilicon transfer of release paper Download PDF

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CN102797195B
CN102797195B CN201210277014.9A CN201210277014A CN102797195B CN 102797195 B CN102797195 B CN 102797195B CN 201210277014 A CN201210277014 A CN 201210277014A CN 102797195 B CN102797195 B CN 102797195B
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release liners
release
organosilicon
viscose glue
layer
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CN102797195A (en
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葛允林
张曙明
王炎
杨其文
陈伟
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CHUZHOU YUNLIN DIGITAL IMAGING SUPPLIES CO LTD
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CHUZHOU YUNLIN DIGITAL IMAGING SUPPLIES CO LTD
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Abstract

The invention relates to a method for reducing organosilicon transfer of release paper, which is achieved via rolling the release layer of the release paper by using viscose glue before coating pressure-sensitive adhesive on the release paper. The viscose glue is nonpolar group graft acrylic acid ester pressure-sensitive adhesive, with a molecular structure which has the general formula as show in the specification, wherein n is 3-20, at least one of R1 and R2 is a cycloalkyl or an alkyloxy and the other one is H, R3 is a short-chain alkyl, a long-chain alkyl or an aromatic group, and X is an ester group. The initial adhesion of the viscose glue is 2.0-5.0 N/mm, the release layer of the release paper is an organosilicon release layer, and the rolling pressure is 100-500 N. The amount of impurity and uncured silicone oil on release layer surfaces of the release paper being processed by the method is little; and after gluing with the viscose glue, the amount of transferred silicon is little and the viscosity of the viscose glue reduces little, therefore enabling the viscose to have a relatively high caking property retention rate. The method can be widely applied in the application fields of release paper and binders with simple technology and convenient operation.

Description

A kind of method that reduces the transfer of release liners organosilicon
Technical field
The present invention relates to a kind of method that release liners organosilicon shifts that reduces, particularly a kind of method of the release layer processing by release liners realizes and reduces the method that release liners organosilicon shifts.
Background technology
Organo silicon release paper claims again barrier paper (release paper), the history of existing four more than ten years.Since the eighties, China's pressure sensitive adhesive goods and self adhesive material have significantly fast development, follow above-mentioned industrial expansion, release liners process industry also has very large development, all needs release liners supporting such as multiple producers such as producing pressure-sensitive adhesive trade mark body paper, two-sided tape, foam tape, the laminating of various vamp material self-adhesion.
Main component in organo silicon release paper: cured modified organosilicon, its surface tension is very low and isolation effect is good, industrial general employing applies layer of polyethylene (PE) film on body paper, again organosilicon coating is sprayed in this PE film, form organosilicon membrane, each component modification organic silicone oil carries out suitable being cross-linked under certain condition, control the molecular weight between crosslink density and crosslinking points, can regulate within the specific limits the peeling force of organic silicon coating, thereby make the release liners of various peeling forces, to adapt to many requirements of different product.
But, in a large amount of actual application, find, when the silicon face of release liners and adhesive plaster and after, in the time peeling off release liners again, the little molecule silicone oil of the silicon face of release liners can transfer on glue and silicon transfer amount more, the viscosity of viscose glue just greatly reduces, even be reduced to 50 ~ 60% of its original cohesive force, thereby affect its practical application, as on as pressure-sensitive adhesive trade mark body paper, the reduction of this label paper cohesive force can cause label paper to bubble, come off, thereby affects the attractive in appearance and practicality of goods.Analyze and thisly occur that viscose glue power decrease reason is: it is incomplete that the defect that release silicone oil is produced coating process causes silicon layer to solidify, and easily shifts; The normal benzene using of release silicone oil, dimethylbenzene, gasoline equal solvent corrosion part glue-line; Conventional release silicone oil adopts condensation reaction organosilicon, can produce little Molecular Adsorption such as more alcohol, amine and water etc. and pollute glue-line etc. in course of reaction.
Publication number CN101050608A discloses in a kind of low transfer mould paper and manufacture method thereof, its main technical point is in coating drying technology, be provided with the baking oven of 7 sections of warm areas, the highest baking temperature is 150 ℃ ~ 180 ℃, after the release liners of preparing by this technique and viscose glue laminating, silicon transfer amount is few, and the viscosity of viscose glue reduces little, thereby makes viscose glue have higher caking property retention rate.But this technique serviceability temperature is higher, makes in body paper water remove rear generation and shrink and cause release layer to produce defect; Meanwhile, in this formula system, there is a large amount of toluene (89.5 ~ 97.96%), made to be difficult to remove completely in later stage drying course, can cause environmental pollution and improve the problems such as the little molecular transfer rate of release liners.Prior art all exists silicone oil can not carry out solidifying of complete proportioning, many and the uncured silicone oil of residual silicone oil component is not due to firm with the bonding of base material, thereby be easy to transfer to glue-line, and in prior art not the transfer for the unreacted silicone oil of this release layer effective method was proposed.
Summary of the invention
The object of the invention is this defect to prior art, a kind of method that release liners organosilicon shifts that reduces is provided, thereby easily shift to glue-line the deficiency that causes viscose viscosity to overcome in prior art silicone oil in release liners.
A kind of method that release liners organosilicon shifts that reduces provided by the present invention is carried out release liners and is solidified the little molecule processing of silicon layer removal silicone oil before release liners pressure-sensitive adhesive coating; The described silicone oil processing of going is to adopt a kind of viscose glue to roll release liners coated face;
Described viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, because the uncured silicon completely of cured layer main body of oil is dimethyl silicone polymer (molecular weight is 200 ~ 300), three hydrogen atoms on this compound structure methyl are because the rotation of methyl occupies larger space, thereby increase the intermolecular distance of adjacent siloxanes, because six powers of intermolecular force and intermolecular distance are inversely proportional to, therefore dimethyl silicone polymer intermolecular interaction force rate hydrocarbon is weak a lot, its surface tension is less than hydrocarbon, for nonpolar molecule, on acrylate pressure-sensitive adhesive in the present invention grafting non-polar group, utilize on the one hand the viscosity of acrylate, uncured silicone oil bonds, utilize on the other hand similar compatibility principle, non-polar group grafted acrylate can play suction-operated to uncured silicone oil, thereby removal silicone oil, the initial bonding strength of viscose glue is the peel strength that 2.0 ~ 5.0N/mm(is less than organosilicon cured layer), described rolling pressure is 100 ~ 500N,
The release layer of described release liners is silicone release layer.
As preferred technical scheme:
Method as above, the general formula of described non-polar group graft polypropylene acid esters is:
Figure BDA00001978354400021
Wherein n is 3 ~ 20, R 1and R 2in have one at least for cycloalkyl or alkoxyl, all the other are H, R 3for short-chain alkyl, chain alkyl or aromatic radical, X is ester group group; The initial bonding strength of described viscose glue is 2.0 ~ 5.0N/mm; Rolling pressure is 100 ~ 500N;
Method as above, non-polar group in described non-polar group grafted acrylate is the one in short-chain alkyl, chain alkyl, aromatic radical, cycloalkyl or alkoxyl, wherein short-chain alkyl refers to that the carbon number of an end of the chain on group is the alkyl of 1 ~ 5, as methyl (CH 3), ethyl (CH 2cH 3), propyl group (CH2CH 2cH 3), isopropyl (CH (CH 3) 2), normal-butyl (CH 2cH 2cH 2cH 3) etc.; Chain alkyl refers to that the carbon number of an end of the chain on group is the alkyl of 6 above (comprising 6), as octyl, and dodecyl, octadecyl etc.; Aromatic radical refers to that on phenyl or phenyl, part H is replaced the group obtaining by other alkyl, as phenyl (Ph), p-methylphenyl (Ph-CH 3) etc.; Cycloalkyl refers to saturated cyclic carbon-chain structure group, or the multiring structure group that links together of multiple ring, as pentamethylene base, cyclopropane base etc.; Alkoxyl refers to the group generating after alkyl is connected with oxygen atom, as methoxyl group (OCH 3), ethyoxyl (OCH 2cH 3) etc.;
Method as above, the acrylate in described non-polar group grafted acrylate is the one in methyl acrylate, ethyl acrylate or butyl acrylate; Described non-polar group replaces methylene (CH in described acrylic ester unit 2-) thereby on 1 ~ 3 H be grafted on acrylate, percent grafting is 1 ~ 10%, described non-polar group is also lipophile group simultaneously, the access of non-polar group can played the adsorbing while to the silicone oil of release liners, due to the lipophile of group, described non-polar group grafted acrylate can with SGA system in other oil-soluble constitents compatible, also maintained the high initial bonding strength of SGA;
Method as above, described rolling refers to that release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller; The described viscose glue of surface coating of described milling roller; The speed of milling roller and transport roller is 10 ~ 100m/min;
Method as above, the base stock of described release liners is Ge Laxin paper, Singh draws papery ground fine and close, even, has good internal intensity and light transmittance, has high temperature resistant, moistureproof and grease proofing function as the base stock of release liners;
Method as above, the leaching membrane layer of described release liners is PET thin layer, PE thin layer, PP thin layer, PVC thin layer, CPP thin layer, BOPP thin layer or THIN COMPOSITE rete.On the base material body paper through corona treatment, this thin film layer of film can improve the adhesive force of thin layer on base material body paper, improves the resistance to water of paper simultaneously, and after making moist, size is difficult for changing, and still keeps the advantage that paper creep resistant is good;
Method as above, described silicone release layer is additional organosilicon layer, additional organosilicon easily carries out MOLECULE DESIGN, namely easily control state of cure by the raw material proportioning that regulates monomer, thereby it is not exclusively curing to reduce organosilicon, additional organosilicon is compared with one-component and condensed type organic silicon simultaneously, in curing, can not produce small-molecule substance, thereby the pollution to release layer of avoiding, has guaranteed the cleaning of release cured layer, reduce the transfer of silicon to adhesive tape.
Beneficial effect:
1, in the present invention, adopt high initial bonding strength but remove unreacted silicone oil on release layer lower than the polyacrylate pressure-sensitive of the peel strength of organosilicon cured layer, reduce the transfer of silicone oil to adhesive tape, guarantee the clean without local defect of release layer, improved the residual bonding rate of adhesive tape;
2, in the present invention, propose to remove the polyacrylate pressure-sensitive use non-polar group grafting of silicone oil, utilize similar compatibility principle to carry out Adsorption for unreacted silicone oil, the polyacrylate pressure-sensitive of non-polar group grafting is easy to system, and silica removal oiliness can be more excellent.
The polyacrylate pressure-sensitive roller of the coating non-polar group grafting 3, proposing in the present invention rolls that to remove the technique of silicone oil simple, and handled easily, can be widely used in release liners, binding agent Application Areas.
The specific embodiment
Face, in conjunction with the specific embodiment, is further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 2.0N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400041
Wherein n is 3, R 1for pentamethylene base, R 2for H, R 3for methyl, X is carbomethoxy.Removing the processing of little molecule silicone oil is to adopt viscose glue to rolling processing; Rolling pressure is 100N; The release layer of release liners is additional organosilicon release layer.
Embodiment 2
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 5.0N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400042
Wherein n is 20, R 1for methoxyl group, R 2for cyclopropane base, R 3for octadecyl, X is ethoxycarbonyl; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 500N; The release layer of release liners is additional organosilicon release layer.
Embodiment 3
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 3.0N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Wherein n is 10, R 1for ethyoxyl, R 2for pentamethylene, R 3for ethyl, X is propyl ester base, R 1and R 2total percent grafting be 1%; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 400N; The release layer of release liners is condensed type organic silicon release layer, the leaching membrane layer of release liners is PET thin layer, release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller, and the surface of milling roller applies above-mentioned viscose glue; The speed of milling roller and transport roller is 10m/min.
Embodiment 4
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 4.0N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400052
Wherein n is 10, R 1for cyclopropane base, R 2for H, R 3for tolyl, X is butyl ester base, R 1and R 2total percent grafting be 10%; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 200N; The release layer of release liners is additional organosilicon release layer, the leaching membrane layer of release liners is PE thin layer, release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller, and the surface of milling roller applies above-mentioned viscose glue; The speed of milling roller and transport roller is 100m/min.
Embodiment 5
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 3.5N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400061
Wherein n is 15, R 1for H, R 2for methoxyl group, R 3for octyl, X is butyl ester base, R 1and R 2total percent grafting be 5%; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 200N; The release layer of release liners is additional organosilicon release layer, the leaching membrane layer of release liners is PP thin layer, release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller, and the surface of milling roller applies above-mentioned viscose glue; The speed of milling roller and transport roller is 50m/min.
Embodiment 6
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 5N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400062
Wherein n is 20, R 1for H, R 2for pentamethylene, R 3for isopropyl, X is carbomethoxy, R 1and R 2total percent grafting be 2%; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 450N; The release layer of release liners is additional organosilicon release layer, the leaching membrane layer of release liners is PVC thin layer, release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller, and the surface of milling roller applies above-mentioned viscose glue; The speed of milling roller and transport roller is 50m/min.
Embodiment 7
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 3N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400071
Wherein n is 8, R 1for H, R 2for cyclopropane, R 3for normal-butyl, X is carbomethoxy, R 1and R 2total percent grafting be 9%; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 450N; The release layer of release liners is condensation silicone release layer, the leaching membrane layer of release liners is CPP thin layer, release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller, and the surface of milling roller applies above-mentioned viscose glue; The speed of milling roller and transport roller is 100m/min.
Embodiment 8
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 4.5N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400072
Wherein n is 16, R 1for methoxyl group, R 2for cyclopropane, R 3for dodecyl, X is ethoxycarbonyl, R 1and R 2total percent grafting be 9%; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 450N; The release layer of release liners is condensation silicone release layer, the leaching membrane layer of release liners is CPP thin layer, release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller, and the surface of milling roller applies above-mentioned viscose glue; The speed of milling roller and transport roller is 100m/min.
Embodiment 9
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 4.5N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400081
Wherein n is 14, R 1for methoxyl group, R 2for pentamethylene, R 3for phenyl, X is ethoxycarbonyl, R 1and R 2total percent grafting be 7%; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to rolling processing, and rolling pressure is 150N; The release layer of release liners is addition silicone release layer, the leaching membrane layer of release liners is BOPP thin layer, release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller, and the surface of milling roller applies above-mentioned viscose glue; The speed of milling roller and transport roller is 25m/min.
Embodiment 10
A kind of method that release liners organosilicon shifts that reduces of the present invention, before release liners pressure-sensitive adhesive coating, adopting initial bonding strength is that the release layer that the viscose glue of 2.5N/m rolls release liners carries out the little molecule silicone oil of the removal processing of release layer, viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure BDA00001978354400082
Wherein n is 4, R 1for pentamethylene base, R 2for H, R 3for propyl group, X is carbomethoxy.Removing the processing of little molecule silicone oil is to adopt viscose glue to rolling processing; Rolling pressure is 100N; The release layer of release liners is additional organosilicon release layer.

Claims (9)

1. reduce the method that release liners organosilicon shifts, it is characterized in that: the release layer that carries out release liners before release liners pressure-sensitive adhesive coating is removed the processing of little molecule silicone oil; The processing of the little molecule silicone oil of described removal is to adopt viscose glue to roll processing to the release layer of release liners;
Described viscose glue is non-polar group graft acrylic acid ester pressure-sensitive, and its general formula of molecular structure is:
Figure FDA0000481754000000011
Wherein n is 3～20,
R 1and R 2in have one at least for cycloalkyl or alkoxyl, all the other are H,
R 3for short-chain alkyl, chain alkyl or aromatic radical,
X is ester group group;
The initial bonding strength of described viscose glue is 2.0～5.0N/mm;
The release layer of described release liners is silicone release layer;
The described pressure rolling is 100～500N;
Total percent grafting of described R1 and R2 is 1～10%.
2. a kind of method that release liners organosilicon shifts that reduces according to claim 1, is characterized in that, described silicone release layer is additional organosilicon layer.
3. a kind of method that release liners organosilicon shifts that reduces according to claim 1, it is characterized in that, described rolling refers to that release liners is between transport roller and milling roller, rolling roll surface contacts with release liners coated face, transport roller contacts with release liners base stock, the switched in opposite of milling roller and transport roller, realizes the regulation and control of milling roller for the rolling pressure of release liners coated face by the distance of controlling between milling roller and transport roller; The described viscose glue of surface coating of described milling roller; The speed of milling roller and transport roller is 10～100m/min.
4. a kind of method that release liners organosilicon shifts that reduces according to claim 1, is characterized in that, the base stock of described release liners is Ge Laxin paper; The leaching membrane layer of described release liners is PET thin layer, PE thin layer, PP thin layer, PVC thin layer, CPP thin layer or BOPP thin layer.
5. a kind of method that release liners organosilicon shifts that reduces according to claim 1, is characterized in that, described short-chain alkyl refers to that the carbon number of an end of the chain on group is the alkyl of 1～5, is methyl, ethyl, propyl group, isopropyl or normal-butyl; Described chain alkyl refers to that the carbon number of an end of the chain on group is 6 or 6 above alkyl, is octyl, dodecyl or octadecyl.
6. a kind of method that release liners organosilicon shifts that reduces according to claim 1, is characterized in that, described aromatic radical refers to that on phenyl or phenyl, part H is replaced the group obtaining by other alkyl, is phenyl or p-methylphenyl.
7. a kind of method that release liners organosilicon shifts that reduces according to claim 1, is characterized in that, described cycloalkyl refers to saturated cyclic carbon-chain structure group, is pentamethylene base or cyclopropane base.
8. a kind of method that release liners organosilicon shifts that reduces according to claim 1, is characterized in that, described alkoxyl refers to the group generating after alkyl is connected with oxygen atom, is methoxy or ethoxy.
9. a kind of method that release liners organosilicon shifts that reduces according to claim 1, is characterized in that, described ester group group is the one in carbomethoxy, ethoxycarbonyl or butyl ester base.
CN201210277014.9A 2012-08-06 2012-08-06 Method for reducing organosilicon transfer of release paper Active CN102797195B (en)

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CN101050608A (en) * 2006-04-03 2007-10-10 上海大昭和纸加工有限公司 Low transfer mould paper and its producing method
CN102277793A (en) * 2011-08-22 2011-12-14 福建师范大学 Preparation method of release paper with #-shaped groove structure

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US6312777B1 (en) * 1993-04-06 2001-11-06 Decora Incorporated Methods and composition for making a pressure sensitive adhesive coated laminate

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CN101050608A (en) * 2006-04-03 2007-10-10 上海大昭和纸加工有限公司 Low transfer mould paper and its producing method
CN102277793A (en) * 2011-08-22 2011-12-14 福建师范大学 Preparation method of release paper with #-shaped groove structure

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