CN103252311B - Method for manufacturing mist surface release films used for pressure sensitive adhesive (PSA) - Google Patents
Method for manufacturing mist surface release films used for pressure sensitive adhesive (PSA) Download PDFInfo
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- CN103252311B CN103252311B CN201310175818.2A CN201310175818A CN103252311B CN 103252311 B CN103252311 B CN 103252311B CN 201310175818 A CN201310175818 A CN 201310175818A CN 103252311 B CN103252311 B CN 103252311B
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Abstract
The invention discloses a method for manufacturing mist surface release films used for pressure sensitive adhesive (PSA). The method includes the steps of firstly, painting a layer of mist surface release agent on a thin film substrate, and then drying the mist surface release agent. According to the raw material formula of the mist surface release agent, the mist surface release agent is composed of 30-35% of hydroxy silicone oil, 2-3% of curing agent, 2-6% of catalyst, 3-42% of polyurethane adhesive, 2-4% of gas phase silicon dioxide and 16-27% of filler. The curing agent is methyl hydrogen silicone oil; the catalyst is platinum; the filler is talc powder with the particle diameters less than or equal to 15 microns; the viscosity of the hydroxy silicone oil is 8000-16000 cps; the viscosity of the polyurethane adhesive is 2000-3000 cps. The method for manufacturing the mist surface release films used for the PSA is simple, saved in cost, convenient to operate and capable of producing the mist surface release films which are stable in release force and make the mist degree effect on a pressure sensing adhesive surface very good, and making the adhesive surface achieve a low reflective effect.
Description
Technical field
The present invention relates to the preparation method of Misty-faced release film for a kind of pressure sensitive adhesive, belong to separated type material preparing technical field.
Background technology
Mould release membrance is that silicone mould release is coated on the top layer of environmental-protecting material PET, PE, OPP film substrate, allows it for various organic pressure-sensing glue, can show extremely light and stable off-type force.
Different organic pressure-sensing glue is the pressure sensitivity glue etc. of PUR, acryl glue and rubber system for example, required mould release membrance off-type force is different, for needing, the viscosity of isolated product glue is different, and the corresponding adjustment of off-type force, makes it the off-type force that reaches extremely light and stable when peeling off.
Concavo-convex for what can make the glue face of pressure-sensing glue acquire a certain degree, glue face has certain mist degree (roughness) and low reflecting effect, and naked eyes have a kind of comfortable sensation while seeing glue face, and Misty-faced release film has played vital effect.
At present, the preparation method of Misty-faced release film is: film substrate is polished coarse by abrasive segments; Clean the dust on film substrate surface; Washing, after dust removal process again at film substrate surface-coated one deck mould release.The shortcoming of the method is: the weight of polishing is inconsistent, and film surface concavo-convex inhomogeneous causes the peeling force of mould release membrance unstable, have release bad risk, and the mist degree of pressure-sensing glue glue face is inhomogeneous, causes the waste of product.
Summary of the invention
The object of the invention is to provide the preparation method of Misty-faced release film for a kind of pressure sensitive adhesive.
For achieving the above object, the technical solution used in the present invention is: the preparation method of Misty-faced release film for a pressure sensitive adhesive, is mainly comprised of the following step:
The first step: be coated with one deck mist-surface release agent on film substrate, the composition of raw materials of this mist-surface release agent is comprised of the material of following quality percentage composition:
Described curing agent is Methyl Hydrogen Polysiloxane Fluid; Described catalyst is platinum; Described filler is that particle diameter is less than or equal to the talcum powder of 15 microns;
Second step: described mist-surface release agent is dried;
The viscosity of described hydroxy silicon oil is 14000cps;
The viscosity of described polyurethane binder is 2300cps.
Related content in technique scheme is explained as follows:
1,, in such scheme, mould release, claims again interleaving agent, antitack agent, remover.
2, in such scheme, described hydroxy silicon oil, English name is: Hydroxy silicone oil is to telomerize through ring body the oligosiloxane forming, and its structural formula is as follows:
Polysiloxane molecule main chain is Si-O key, and bond energy is 462KJ/mol, and the bond energy of C-O is 369KJ/mol, and the bond energy of Si-O is larger than C-O, so the good heat resistance of polysiloxanes.In addition, the bond distance of side chain Si-C is 0.193 nanometer, the bond distance of C-C is 0.154 nanometer, because the bond distance of Si-C is long, the steric hindrance that is connected in the methyl on Si atom is little, so methyl rotating photo is when freely, and while connecting methyl on C-C key, the steric hindrance of methyl is large, so methyl can not rotate freely.In addition, Si-O bond angle is larger than C-O key, and silicon atom is larger than carbon atom, methyl occupies suitable space around when Si-O key rotates, and intermolecular gravitation is diminished, between polysiloxane molecule, gravitation is little, illustrates that its cohesive energy is little, and resistance to bond and the cohesive energy of polymer are closely related.
3,, in such scheme, described Methyl Hydrogen Polysiloxane Fluid, has another name called polymethyl hydrogen siloxane, containing hydrogen silicone oil, high containing hydrogen silicone oil, poly-methyl hydrogen radical siloxane, the high containing hydrogen silicone oil of methyl, 202 high containing hydrogen silicone oils, the poly-methyl of trimethylsiloxy group end-blocking.English name Polymethylhydrosiloxane, PMHS.No. CAS: 63148-57-2; Molecular formula: C
3h
9oSi (CH
4oSi) nC
3h
9si.Its structural formula is as follows:
4,, in such scheme, under the condition that described hydroxy silicon oil and Methyl Hydrogen Polysiloxane Fluid exist at catalyst platinum, the mechanism type of the material generating after reaction is as follows:
5, in such scheme, described polyurethane binder is polyurethane adhesive, refers to the adhesive that contains carbamate groups (NHCOO-) or NCO (NCO) in strand.Polyurethane adhesive is divided into polyisocyanates and the large class of polyurethane two.In polyisocyanates strand, contain isocyano group (NCO) and carbamate groups (NHCOO-), therefore polyurethane adhesive shows activity and the polarity of height.With the base material that contains active hydrogen, as porous materials such as foam, plastics, timber, leather, fabric, paper, potteries, and the material of any surface finish such as metal, glass, rubber, plastics has good chemical adhesive power.
6, in such scheme, described aerosil (gas phase White Carbon black) is one of ultra tiny New Inorganic Materials of extremely important high-tech, and because its particle diameter is very little, so specific area is large, adsorption power is strong, and surface can be large; The aspects such as chemical purity is high, dispersive property good, thermal resistance, resistance have special performance, with its superior stability, reinforcement, thickening property and thixotropy, in numerous subjects and field, show unique characteristics.
7,, in such scheme, described talcous English is called PULVISTALCI, for white or off-white color, fine, without the powder of grittiness, hand touches with greasy feeling.CAS?No.：14807-96-6。
8,, in such scheme, film substrate can be the film substrates such as environmental-protecting material PET, PE, OPP.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
Pressure sensitive adhesive of the present invention is simple, cost-saving by the preparation method technique of Misty-faced release film, handled easily, can produce peeling force stable and make the good Misty-faced release film of pressure-sensing glue glue face mist degree effect, make glue face reach low reflecting effect.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment mono-: the preparation method of Misty-faced release film for a kind of pressure sensitive adhesive, and its manufacture craft is as follows:
The first step: be that PET film surface is processed totally by film substrate.
Second step: prepare mist-surface release agent
First, according to following mass percent example, material is weighed and is got ready:
Note, what the % in table represented is quality percentage composition.
Described curing agent is Methyl Hydrogen Polysiloxane Fluid; Described catalyst is platinum; Described filler is that particle diameter is less than or equal to the talcum powder of 15 microns; The viscosity of described hydroxy silicon oil is 14000cps.The viscosity of described polyurethane binder is 2300cps.
Then, material is placed in container, the mixing speed with agitator with 300 revs/min stirs.
The 3rd step: the mist-surface release agent making at film substrate one side surface coating one deck.The method of coating is funny cutter coating.Also can adopt anilox roll coating.
The 4th step: dry, the temperature setting of the baking oven of use is set to 90 ℃, 130 ℃, 140 ℃, 130 ℃, 110 ℃, 80 ℃.
The 5th step: maturation, then rolling.
The surface that is coated in use PET film substrate obtains mould release membrance.
Embodiment bis-: the preparation method of Misty-faced release film for a kind of pressure sensitive adhesive, and its manufacture craft is as follows:
The first step: be that PET film surface is processed totally by film substrate.
Second step: prepare mist-surface release agent
First, according to following mass percent example, material is weighed and is got ready:
Described curing agent is Methyl Hydrogen Polysiloxane Fluid; Described catalyst is platinum; Described filler is that particle diameter is less than or equal to the talcum powder of 15 microns; The viscosity of described hydroxy silicon oil is 13000cps.The viscosity of described polyurethane binder is 2700cps.
Then, material is placed in container, the mixing speed with agitator with 300 revs/min stirs.
The 3rd step: the mist-surface release agent making at film substrate one side surface coating one deck.The method of coating is funny cutter coating.Also can adopt anilox roll coating.
The 4th step: dry, the temperature setting of the baking oven of use is set to 90 ℃, 130 ℃, 140 ℃, 130 ℃, 110 ℃, 80 ℃.
The 5th step: maturation, then rolling.
The surface that is coated in use PET film substrate obtains mould release membrance.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (1)
1. the preparation method of Misty-faced release film for pressure sensitive adhesive, is characterized in that: mainly the following step, consist of:
The first step: be coated with one deck mist-surface release agent on film substrate, the composition of raw materials of this mist-surface release agent is comprised of the material of following quality percentage composition:
Hydroxy silicon oil 35%;
Curing agent 2%;
Catalyst 6%;
Polyurethane binder 35%;
Aerosil 4%;
Filler 18%;
Described curing agent is Methyl Hydrogen Polysiloxane Fluid; Described catalyst is platinum; Described filler is that particle diameter is less than or equal to the talcum powder of 15 microns;
Second step: described mist-surface release agent is dried;
The viscosity of described hydroxy silicon oil is 14000cps;
The viscosity of described polyurethane binder is 2300cps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310175818.2A CN103252311B (en) | 2011-07-12 | 2011-07-12 | Method for manufacturing mist surface release films used for pressure sensitive adhesive (PSA) |
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| CN201310175818.2A CN103252311B (en) | 2011-07-12 | 2011-07-12 | Method for manufacturing mist surface release films used for pressure sensitive adhesive (PSA) |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110194264 Division CN102327863B (en) | 2011-07-12 | 2011-07-12 | Method for making fogging surface release film |
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| CN103252311A CN103252311A (en) | 2013-08-21 |
| CN103252311B true CN103252311B (en) | 2014-10-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05253941A (en) * | 1992-03-10 | 1993-10-05 | Ebi Shoji Kk | Release agent for molding |
| JPH11301096A (en) * | 1998-04-20 | 1999-11-02 | Konica Corp | Ink jet recording paper |
| CN101497730A (en) * | 2009-03-05 | 2009-08-05 | 浙江池禾化工有限公司 | Fluoride bearing release agent and release paper with release coating formed thereby |
| CN101565918A (en) * | 2009-06-05 | 2009-10-28 | 中国乐凯胶片集团公司 | High-light release paper for synthetic leather |
| CN101885256A (en) * | 2010-06-22 | 2010-11-17 | 佛山市塑兴母料有限公司 | Release liner and production method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008048565A1 (en) * | 2006-10-16 | 2008-04-24 | E.I. Du Pont De Nemours And Company | Mold release composition and method for producing a rotational molding paint-ready polyurethane |
-
2011
- 2011-07-12 CN CN201310175818.2A patent/CN103252311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05253941A (en) * | 1992-03-10 | 1993-10-05 | Ebi Shoji Kk | Release agent for molding |
| JPH11301096A (en) * | 1998-04-20 | 1999-11-02 | Konica Corp | Ink jet recording paper |
| CN101497730A (en) * | 2009-03-05 | 2009-08-05 | 浙江池禾化工有限公司 | Fluoride bearing release agent and release paper with release coating formed thereby |
| CN101565918A (en) * | 2009-06-05 | 2009-10-28 | 中国乐凯胶片集团公司 | High-light release paper for synthetic leather |
| CN101885256A (en) * | 2010-06-22 | 2010-11-17 | 佛山市塑兴母料有限公司 | Release liner and production method thereof |
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| CN103252311A (en) | 2013-08-21 |
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Address after: 223900 Sihong Province Economic Development Zone, Suqian, West Ocean West Road, No. 6 Patentee after: Jiangsu Stick new materials Polytron Technologies Inc Address before: 215400 Taicang, Suzhou, Taicang Economic Development Zone, Qingdao West Road, No. 11, No. Patentee before: Suzhou Sidike New Material Science & Technology Co., Ltd. |
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Effective date of registration: 20170711 Address after: 215400 Taicang, Suzhou, Taicang Economic Development Zone, Qingdao West Road, No. 11, No. Patentee after: Taicang Stick new Mstar Technology Ltd Address before: 223900 Sihong Province Economic Development Zone, Suqian, West Ocean West Road, No. 6 Patentee before: Jiangsu Stick new materials Polytron Technologies Inc |