CN106675426A - Multi-layer polyester protective film and preparation method thereof - Google Patents
Multi-layer polyester protective film and preparation method thereof Download PDFInfo
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- CN106675426A CN106675426A CN201510755931.7A CN201510755931A CN106675426A CN 106675426 A CN106675426 A CN 106675426A CN 201510755931 A CN201510755931 A CN 201510755931A CN 106675426 A CN106675426 A CN 106675426A
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Abstract
The invention relates to a protective film, in particular to a multi-layer polyester protective film. In order to solve the problem that a release film needs to be discarded when the existing protective film is used, the invention provides the multi-layer polyester protective film and a preparation method thereof. The protective film consists of a fluorine carbon release layer, a base material layer and a pressure-sensitive adhesive layer, wherein one side of the base material layer is coated with the pressure-sensitive adhesive layer; and the other side of the base material layer is coated with the fluorine carbon release layer. Furthermore, a release film does not cover the upper surface of the pressure-sensitive adhesive layer of the multi-layer polyester protective film. After the protective film is prepared, the protective film can be directly rolled without being covered with the release film, so the production process is simple; and when the protective film is used, the release film does not need to be torn down and discarded, so waste of the release film is avoided. The protective film is used for protecting a touch screen for a long time.
Description
Technical field
The present invention relates to a kind of protecting film, more particularly to a kind of multi-layered polyester protecting film and preparation method thereof.Should
Protecting film is used for permanent protection touch screen.
Background technology
In the epoch that nowadays electronic goods is prevailing, people not only to the prescription more and more higher of electronic goods,
Protection to its outward appearance and liquid crystal display screen is also increasingly focused on.For smart mobile phone, people are selecting protecting film
When, can simultaneously consider the imaging verity for not affecting screen, the cleaning of touch screen can be kept again, and can
The performances such as permanent protection touch.To meet the demand of people, vast thin film producer is all developing various protecting film.
At present, the protecting film sold on market, adhesive is most to select polyurethane adhesive system, as it is known,
Silica gel and acrylic glue are also easy to produce pollution, such as white haze cull to protection face Jing after long-term placement.Traditional
Protecting film is typically employed in polyurethane adhesive layer surface and is covered with one layer of mould release membrance and wound again in winding.Cause
When using protecting film, the mould release membrance for tearing off will directly be thrown away for this, when the demand of protecting film it is bigger,
Mean that the mould release membrance thrown away is more, a large amount of wastes of material can have been caused since growing this.
The content of the invention
In order to solve the problems, such as that existing protecting film needs to throw away mould release membrance when in use, the present invention provides a kind of multilamellar
Polyester protecting film and preparation method thereof.After the protection film preparation is completed, it is not required to cover mould release membrance, directly winds,
Simple production process；Using front, it is not required that mould release membrance of first tearing is thrown away, it is to avoid the waste of mould release membrance.
In order to solve above-mentioned technical problem, the present invention adopts following technical proposals：
The present invention provides a kind of multi-layered polyester protecting film, the protecting film by fluorine carbon release layer, substrate layer, and
Pressure-sensitive adhesive layer is constituted；The side of the substrate layer is coated with pressure-sensitive adhesive layer, the opposite side coating of the substrate layer
There is fluorine carbon release layer.
Further, the upper surface of the pressure-sensitive adhesive layer of the multi-layered polyester protecting film does not cover mould release membrance.
Further, what described fluorine carbon release layer was selected is environment-friendly type aqueous fluororesin.Described substrate layer
It is the PET film with two-sided precoated shet.The material of described pressure-sensitive adhesive layer is selected from adhesive.
The material of the substrate layer is selected from polyester resin.Further, the material of the substrate layer is PET trees
Fat.
Further, in described multi-layered polyester protecting film, in preparation process, the fluorine carbon release layer
Raw material is first configured to fluorocarbon resin coating fluid, and the fluorocarbon resin coating fluid includes following components：Fluororesin
50-65 parts, 0.3 part of dispersant, 0.6 part of levelling agent, 10 parts of firming agent, diluent water 50-70 parts；
When diluent is 70 parts, the firming agent is IPDI (isoflurane chalcone diisocyanate) and HMDI
The mixture of (hexylidene diisocyanate), in the mixture, the weight ratio of IPDI and HMDI is
5:5 or 6:4；Fluororesin 55-65 parts；
Or, when diluent is 70 parts, firming agent is IPDI (isoflurane chalcone diisocyanate) and HMDI
The mixture of (hexylidene diisocyanate), in the mixture, the weight ratio of IPDI and HMDI is
4:6；65 parts of fluororesin；
The number is parts by weight.
Further, in described multi-layered polyester protecting film, the fluororesin is selected from vinylidene fluoride (VdF)
What copolymer, methyl methacrylate (MMA) copolymer, perfluoroalkoxy polymer, perfluoroalkyl replaced
Quaternary ammonium salt, phosphoric acid ester, the perfluorinated acrylate class of perfluoroalkyl replacement that amine, perfluoroalkyl replace
One kind or at least two combination in polymer.
The perfluoroalkoxy polymer is selected from perfluoroalkyl vinyl copolymer, or perfluor alkyl ethide acrylic acid
One kind in ester polymer.
The amine that the perfluoroalkyl replaces is selected from perfluorobutylsulfonamide or perfluorotributylamine.
The quaternary ammonium salt that the perfluoroalkyl replaces is selected from perfluorinated octyl sulfuryl amine based quaternary ammonium salt.
The phosphoric acid ester that the perfluoroalkyl replaces is selected from perfluoro capryl phosphate ester.
The perfluorinated acrylate birdss of the same feather flock together compound selected from Perfluoroalkylethyl methacrylate.
Further, the fluororesin is selected from fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin.
Further, in described multi-layered polyester protecting film, many isocyanides of the firming agent selected from hydrophilic modifying
Two hydrazides class firming agent derived from esters of gallic acid firming agent or carboxylic acid.
The polyisocyanates firming agent is aliphatic polyisocyante firming agent or the Carbimide. of alkyl class two
Ester firming agent.
Two hydrazides class firming agent derived from the carboxylic acid are selected from acid dihydrazide firming agent, sebacic dihydrazide
Firming agent etc., specifically used which kind of firming agent need to be depending on fluororesin.
Further, in described multi-layered polyester protecting film, the firming agent is that (isophorone two is different for IPDI
Cyanate) and HMDI (hexylidene diisocyanate) mixture；In the mixture, IPDI with
The weight ratio of HMDI is 4:6 to 6:4.
Further, in described multi-layered polyester protecting film, the fluorocarbon resin coating fluid includes following components：
Fluororesin 60-65 parts, 0.3 part of dispersant, 0.6 part of levelling agent, 10 parts of firming agent, diluent water
50-60 parts, the number is parts by weight；The firming agent is the mixture of IPDI and HMDI, described
In mixture, the weight ratio of IPDI and HMDI is 4:6 to 6:4.
Further, in described multi-layered polyester protecting film, fluorocarbon resin coating fluid includes following components：Fluorine
Resin 60-65 parts, 0.3 part of dispersant, 0.6 part of levelling agent, 10 parts of firming agent be (IPDI and HMDI's
Weight ratio is 5:5), diluent water 50-60 parts, the number is parts by weight.
Further, in described multi-layered polyester protecting film, the fluororesin is fluoroolefins-vinyl ethers copolymerization
Thing (FEVE) fluororesin.
Further, in described multi-layered polyester protecting film, the material of the pressure-sensitive adhesive layer is selected from the poly- ammonia of aqueouss
Ester adhesive.
The present invention also provides a kind of preparation method of described multi-layered polyester protecting film, and methods described includes：It is logical
Cross online coating method and be coated with fluorocarbon resin coating fluid in the side of substrate layer, after fluorocarbon resin coating fluid is dried
Form fluorine carbon release layer；Again the opposite side by offline coating method in substrate layer is coated with polyurethane adhesive,
Pressure-sensitive adhesive layer is formed after polyurethane adhesive coating (abbreviation glue-line) drying, without the need for being covered with mould release membrance, is received
Volume, obtains described multi-layered polyester protecting film.
Above-mentioned multi-layered polyester protecting film has high-weatherability, resistance to chemical reagents, high efficient oil-proof, superpower hardness.Enter
One step, described multi-layered polyester protecting film is applied to the permanent protection of touch screen.
Compared with existing protecting film, multi-layered polyester protecting film of the present invention, by with polyurethane adhesive
The contrary side of layer applies last layer water-based fluorocarbon resin, just can directly wind, and eliminates mould release membrance, significantly
It is cost-effective.Again water-based fluorocarbon coating has the advantages such as high-weatherability, high efficient oil-proof, strong scratch resistance, so
To people, environment fanout free region, patch is on the touchscreen, easy to clean and can reach permanent protection.When in use,
Also without like that, the mould release membrance (or release paper) first torn on pressure-sensitive adhesive layer is thrown away with existing protecting film
Fall, reduce the waste of material.Described multi-layered polyester protecting film is primarily adapted for use in the long Kubo of touch screen
Shield.
The present invention can reduce the input of raw material again under conditions of the various barrier propterties for improving protecting film,
Simplify production, reduce production cost.
Description of the drawings
The multi-layered polyester protecting film structural representation that Fig. 1 is provided for the present invention.
Specific embodiment
In order to be more readily understood the structure and the functional character to be reached and advantage of the present invention, hereafter by this
Bright preferred embodiment, and coordinate schema to be described below in detail：
As shown in figure 1, the present invention provides a kind of multi-layered polyester protecting film, the protecting film is release by fluorine carbon
Layer 1, substrate layer 2, and pressure-sensitive adhesive layer 3 are constituted；The side of the substrate layer 2 is coated with pressure-sensitive adhesive layer 3,
The opposite side of the substrate layer 2 is coated with fluorine carbon release layer 1.The multi-layered polyester protecting film is not required to cover mould release membrance
Can directly wind.
Base material used is high temperature resistant, the high printing opacity of Chinese Chang Yang scientific ＆ technical corporation production in the embodiment of the present invention
Double drawing polyethylene terephthalate (BOPET) thin film, the OSQ2 with two-sided precoated shet is serial,
Thickness can be 50 or 75um.
The material of the pressure-sensitive adhesive layer is polyurethane adhesive.
The multi-layered polyester protecting film that the present invention is provided, mainly for the following performance of fluorine carbon release layer, is carried out
Test evaluation：
(1), case hardness：Foundation《Hardness of film pencil algoscopy》(GB/T6739-1996) determine
The case hardness of fluorine carbon release layer.
(2), resistance to chemical reagents.Take this protection membrane sample and put into 10%H respectively2SO4, 10%NaOH it is molten
In liquid, soaking at room temperature 5 days, the change after record.It is qualified without decortication.
(3), artificial ageing resistance (weatherability).Foundation《Coating artificial weathering aging and man-made radiation
Exposure》(GB/T1865-19997) artificial ageing resistance of fluorine carbon release layer, is determined.Artificial ageing resistance
The time measured in detection is longer, illustrates that weatherability is better.
(4), stain resistance.One is the pressure-sensitive adhesive layer (polyurethane glue-line) of protecting film to fluorine carbon release layer
Whether cull can be produced；Whether two is to be applied to fluorine carbon release layer with oil pen, Jing after shampooing, observe it and can
Leave a trace, judge whether it can be with anti-pollution.
(5) resistance to impact.Foundation《Paint film resistance to impact algoscopy》(GB/T 1732-1993) determines fluorine
The stamping resistance of carbon release layer.
Embodiment 1
The present invention provides a kind of multi-layered polyester protecting film, the protecting film by fluorine carbon release layer, substrate layer,
With pressure-sensitive adhesive layer composition；The side of the substrate layer is coated with pressure-sensitive adhesive layer, the opposite side of the substrate layer
It is coated with fluorine carbon release layer.The preparation method of the protecting film is as follows：
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 50 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 50 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 6 with the ratio of HMDI:4), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 2
The protecting film that such as embodiment 1 is provided, wherein, from perfluoroalkyl vinyl copolymer fluororesin 55
Part.
Embodiment 3
The protecting film that such as embodiment 1 is provided, wherein, 60 parts of fluororesin.
Embodiment 4
The protecting film that such as embodiment 1 is provided, wherein, 65 parts of fluororesin.
Embodiment 5
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 50 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 50 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 5 with the ratio of HMDI:5), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 6
The protecting film that such as embodiment 5 is provided, wherein, 55 parts of fluororesin.
Embodiment 7
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 60 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 50 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 5 with the ratio of HMDI:5), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 8
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 65 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 50 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 5 with the ratio of HMDI:5), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 9
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 50 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 50 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 4 with the ratio of HMDI:6), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 10
The protecting film that such as embodiment 9 is provided, wherein, 55 parts of fluororesin.
Embodiment 11
The protecting film that such as embodiment 9 is provided, wherein, 60 parts of fluororesin.
Embodiment 12
The protecting film that such as embodiment 9 is provided, wherein, 65 parts of fluororesin.
Embodiment 13
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 50 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 60 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 6 with the ratio of HMDI:4), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 14
The protecting film that such as embodiment 13 is provided, wherein, 55 parts of fluororesin.
Embodiment 15
The protecting film that such as embodiment 13 is provided, wherein, 60 parts of fluororesin.
Embodiment 16
The protecting film that such as embodiment 13 is provided, wherein, 65 parts of fluororesin.
Embodiment 17
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 50 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 60 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 5 with the ratio of HMDI:5), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 18
The protecting film that such as embodiment 17 is provided, wherein, 55 parts of fluororesin.
Embodiment 19
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 60 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 60 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 5 with the ratio of HMDI:5), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 20
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 65 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 60 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 5 with the ratio of HMDI:5), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 21
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 50 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin resins, is stirred
Mix 20-30 minutes.Add 60 parts of water to be diluted, stir 10 minutes or so, 10 parts are added afterwards
(ratio of IPDI and HMDI is 4 to firming agent:6), continue to stir 10 minutes to uniform, obtain fluorine carbon tree
Fat coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 22
The protecting film that such as embodiment 21 is provided, wherein, 55 parts of fluororesin.
Embodiment 23
The protecting film that such as embodiment 21 is provided, wherein, 60 parts of fluororesin.
Embodiment 24
The protecting film that such as embodiment 21 is provided, wherein, 65 parts of fluororesin.
Embodiment 25
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 55 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 70 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 6 with the ratio of HMDI:4), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 26
The protecting film that such as embodiment 25 is provided, wherein, 60 parts of fluororesin.
Embodiment 27
The protecting film that such as embodiment 25 is provided, wherein, 65 parts of fluororesin.
Embodiment 28
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 55 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin, stirs 20-30
Minute.Add 70 parts of water to be diluted, stir 10 minutes or so, 10 parts of firming agent (IPDI are added afterwards
It is 5 with the ratio of HMDI:5), continue to stir 10 minutes to uniform, obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Embodiment 29
The protecting film that such as embodiment 28 is provided, wherein, 60 parts of fluororesin.
Embodiment 30
The protecting film that such as embodiment 28 is provided, wherein, 65 parts of fluororesin.
Embodiment 31
The protecting film that such as embodiment 1 is provided, wherein,
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 65 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin resins, is stirred
Mix 20-30 minutes.Add 70 parts of water to be diluted, stir 10 minutes or so, 10 parts are added afterwards
(ratio of IPDI and HMDI is 4 to firming agent:6), continue to stir 10 minutes to uniform, obtain fluorine carbon tree
Fat coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Comparative example 1
(1) fluorocarbon resin coating fluid：Under the high-speed stirred of electric blender, by 0.3 part of dispersant and stream
0.6 part of flat agent is added in 50 parts of fluoroolefins-vinyl ether co-polymer (FEVE) fluororesin resins, is stirred
Mix 20-30 minutes.Add 70 parts of water to be diluted, stir 10 minutes or so, 10 parts are added afterwards
(ratio of IPDI and HMDI is 6 to firming agent:4, part by weight), continue to stir 10 minutes to uniform,
Obtain fluorocarbon resin coating fluid.
(2) the fluorocarbon resin coating fluid prepared in above-mentioned (1) is coated with the side of base material OSQ275, is dried
Dry coating, forms fluorine carbon release layer.
(3) opposite side in the base material of above-mentioned (2) is coated with polyurethane adhesive, forms pressure-sensitive adhesive layer, puts
After entering oven drying, inward-facing the rolling of glue-line (is observed into whether glue layer can produce in release coating
Pollution).
Comparative example 2
The multi-layered polyester protecting film that such as comparative example 1 is provided, wherein, the firming agent in fluorocarbon resin coating fluid
Ratio be：The ratio of IPDI and HMDI is 5:5.
Comparative example 3
The multi-layered polyester protecting film that such as comparative example 1 is provided, wherein, the firming agent in fluorocarbon resin coating fluid
Ratio be：The ratio of IPDI and HMDI is 4:6.
Comparative example 4
The protecting film that such as comparative example 3 is provided, wherein, 55 parts of fluororesin.
Comparative example 5
The protecting film that such as comparative example 3 is provided, wherein, 60 parts of fluororesin.
Comparative example 6
(1) silicone release coating fluid：From the silicone release agent of Japan XINYUE's production
CAT-1310 is serial.
(2) the silicone release agent in (1) is coated in the side of base material OSQ275, is entered in an oven
Row drying；
(3) opposite side of the base material in (2) are completed after step is according to previously described preferred poly- ammonia
Recipe is coated, and is put in baking oven and is dried, and then (inward-facing the rolling of glue-line is observed into glue layer
Whether pollution can be produced in release coating).
The proportioning of raw material in the technical scheme that the embodiment of table 1 is provided with comparative example
The Performance evaluation criterion of the multi-layered polyester protecting film that the present invention of table 2 is provided
The testing result of the protecting film that the multi-layered polyester protecting film and comparative example that the embodiment of table 3 is provided is provided
Can be drawn by the testing result in table 3, the multi-layered polyester protecting film that the present invention is provided has high resistance to
Hou Xing, resistance to chemical reagents, high efficient oil-proof, superpower hardness.And can not use mould release membrance, energy saving.
Wherein, the multilamellar that embodiment 3,4,7,8,11,12,15,16,19,20,23 and 24 is provided
The combination property of polyester protecting film is slightly good.Wherein, the multi-layered polyester that embodiment 7,8,19 and 20 is provided
The combination property of protecting film is preferable.Particularly, the multi-layered polyester protecting film of the offer of embodiment 8 is comprehensive
Can be best.
The above, only presently preferred embodiments of the present invention is not intended to limit the protection of the present invention
Scope.Every impartial change done according to present invention and modification, are encompassed by the patent of the present invention
In the range of.
Claims (10)
1. a kind of multi-layered polyester protecting film, it is characterised in that the protecting film by fluorine carbon release layer, substrate layer, and
Pressure-sensitive adhesive layer is constituted；The side of the substrate layer is coated with pressure-sensitive adhesive layer, the opposite side coating of the substrate layer
There is fluorine carbon release layer.
2. multi-layered polyester protecting film according to claim 1, it is characterised in that described in preparation process
The raw material of fluorine carbon release layer is first configured to fluorocarbon resin coating fluid, and the fluorocarbon resin coating fluid includes following groups
Part：Fluororesin 50-65 parts, 0.3 part of dispersant, 0.6 part of levelling agent, 10 parts of firming agent, diluent water
50-70 parts；
When diluent is 70 parts, the firming agent is IPDI (isoflurane chalcone diisocyanate) and HMDI is (sub-
Hexyl diisocyanate) mixture, in the mixture, the weight ratio of IPDI and HMDI is 5:5
Or 6:4；Fluororesin 55-65 parts；
Or, when diluent is 70 parts, firming agent is IPDI (isoflurane chalcone diisocyanate) and HMDI is (sub-
Hexyl diisocyanate) mixture, in the mixture, the weight ratio of IPDI and HMDI is 4:6；
65 parts of fluororesin；
The number is parts by weight.
3. multi-layered polyester protecting film according to claim 2, it is characterised in that the fluororesin is selected from inclined two
Fluorothene (VdF) copolymer, methyl methacrylate (MMA) copolymer, perfluoroalkoxy polymer,
Perfluoroalkyl replace amine, perfluoroalkyl replace quaternary ammonium salt, perfluoroalkyl replace phosphoric acid ester,
Perfluorinated acrylate is birdsed of the same feather flock together one kind or at least two combination in compound.
4. multi-layered polyester protecting film according to claim 2, it is characterised in that the firming agent is selected from hydrophilic
Modified polyisocyanates firming agent or two hydrazides class firming agent derived from carboxylic acid.
5. multi-layered polyester protecting film according to claim 4, it is characterised in that the firming agent is IPDI
The mixture of (isoflurane chalcone diisocyanate) and HMDI (hexylidene diisocyanate)；Described mixed
In compound, the weight ratio of IPDI and HMDI is 4:6 to 6:4.
6. multi-layered polyester protecting film according to claim 2, it is characterised in that the fluorocarbon resin coating fluid
Including following components：
Fluororesin 60-65 parts, 0.3 part of dispersant, 0.6 part of levelling agent, 10 parts of firming agent, diluent water 50-60
Part, the number is parts by weight；The firming agent is the mixture of IPDI and HMDI, the mixing
In thing, the weight ratio of IPDI and HMDI is 4:6 to 6:4.
7. multi-layered polyester protecting film according to claim 6, it is characterised in that fluorocarbon resin coating fluid includes
Following components：Fluororesin 60-65 parts, 0.3 part of dispersant, 0.6 part of levelling agent, 10 parts of (IPDI of firming agent
It is 5 with the weight ratio of HMDI:5), diluent water 50-60 parts, the number is parts by weight.
8. multi-layered polyester protecting film according to claim 5, it is characterised in that the fluororesin is fluoroolefins
- vinyl ether co-polymer (FEVE) fluororesin.
9. multi-layered polyester protecting film according to claim 5, it is characterised in that the material of the pressure-sensitive adhesive layer
Selected from Aqueous Polyurethane Adhesives.
10. a kind of preparation method of multi-layered polyester protecting film according to claim 2, it is characterised in that institute
The method of stating includes：Fluorocarbon resin coating fluid, fluorine carbon tree are coated with the side of substrate layer by online coating method
Fat coating fluid forms fluorine carbon release layer after being dried；Again the opposite side by offline coating method in substrate layer is coated with
Polyurethane adhesive, after polyurethane adhesive coated and dried pressure-sensitive adhesive layer is formed, without the need for being covered with mould release membrance,
Winding, obtains described multi-layered polyester protecting film.
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| CN106675426B CN106675426B (en) | 2019-10-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321158A (en) * | 2018-10-24 | 2019-02-12 | 佛山市佳世达薄膜科技有限公司 | A kind of soft PC protective film |
| CN112724852A (en) * | 2020-12-23 | 2021-04-30 | 宁波长阳科技股份有限公司 | Novel OLED screen protective film and preparation method and application thereof |
| CN114736579A (en) * | 2022-03-30 | 2022-07-12 | 安徽屹珹新材料科技有限公司 | Fluorocarbon coating, preparation method thereof and multilayer film application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492358A (en) * | 2011-11-14 | 2012-06-13 | 厦门市豪尔新材料有限公司 | Thermo-setting transfer mould release agent and method for preparing and using same |
| CN204714744U (en) * | 2015-06-04 | 2015-10-21 | 宝丽菲姆保护膜（苏州）有限公司 | A kind of PE protective membrane |
-
2015
- 2015-11-09 CN CN201510755931.7A patent/CN106675426B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492358A (en) * | 2011-11-14 | 2012-06-13 | 厦门市豪尔新材料有限公司 | Thermo-setting transfer mould release agent and method for preparing and using same |
| CN204714744U (en) * | 2015-06-04 | 2015-10-21 | 宝丽菲姆保护膜（苏州）有限公司 | A kind of PE protective membrane |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321158A (en) * | 2018-10-24 | 2019-02-12 | 佛山市佳世达薄膜科技有限公司 | A kind of soft PC protective film |
| CN112724852A (en) * | 2020-12-23 | 2021-04-30 | 宁波长阳科技股份有限公司 | Novel OLED screen protective film and preparation method and application thereof |
| CN114736579A (en) * | 2022-03-30 | 2022-07-12 | 安徽屹珹新材料科技有限公司 | Fluorocarbon coating, preparation method thereof and multilayer film application |
| CN114736579B (en) * | 2022-03-30 | 2024-05-10 | 安徽屹珹新材料科技有限公司 | Fluorocarbon coating, preparation method thereof and multilayer film application |
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| CN106675426B (en) | 2019-10-18 |
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Application publication date: 20170517 Assignee: Ningbo Changlong New Material Co.,Ltd. Assignor: NINGBO SOLARTRON TECHNOLOGY Co.,Ltd. Contract record no.: X2021330000199 Denomination of invention: The invention relates to a multilayer polyester protective film and a preparation method thereof Granted publication date: 20191018 License type: Common License Record date: 20210831 |