CN209685678U - A kind of linerless CPP cold lamination film - Google Patents

Abstract

The utility model discloses a kind of linerless CPP cold lamination films, it is made of CPP base membrane layer, priming coat and water-borne pressure sensitive adhesive adhesion coating from top to bottom, and the tensile strength of the CPP base membrane layer is within the scope of 600~1200g/25mm, elongation at break >=300%, upper surface dyne value≤30.The utility model is by using the excellent CPP film of flexibility as base membrane layer, PVC film instead of tradition containing halogen, and water-borne pressure sensitive adhesive adhesion coating is used, environmentally friendly VOC free discharge is directly wound without release paper or release film, it is convenient to use, it winds length up to 200 meters, i.e. the 4 of traditional product times effectively reduce the number of replacement coiled material, be conducive to continuous overlay film, greatly increase production efficiency.On the other hand the drawbacks of traditional product causes a large amount of wastes using release paper or release film is also overcome.

Description

A kind of linerless CPP cold lamination film

Technical field

The utility model relates to advertising painting protective film field, in particular to a kind of cold lamination film.

Background technique

Domestic and international tradition is all to coat oiliness acrylic using soft pvc film as substrate with advertising painting protective film at present Glue is wound after being covered with release paper or release film, and release paper (film) is used as auxiliary material, just can only after tearing It is thrown away as waste product, causes a large amount of release papers (film) discarded.And soft pvc film is because containing halogen, itself is exactly a kind of acyclic Protect material.In addition, needing to add a large amount of plasticiser to increase the flexibility of PVC film, plasticiser can pushing away with the time Shifting is gradually oozed out from film, to pollute environment, while also destroying the viscosity of glue, influences the effect of the stickup to advertising painting picture Fruit, and European Union's REACH standard and California, USA decree are limited using the plasticisers such as halogen-containing product and disabling DOP.It is another Aspect, the PVC film due to being added to a large amount of plasticiser has excellent flexibility, for applying in the advertisement that veneer is curved surface Air brushing is very suitable to, and general bidirectional stretching polypropylene film (BOPP film), polyester film (PET film), ductility is all bad, only Suitable for plane pad pasting, and it is unsuitable for curved surface use.Therefore, develop it is a kind of be halogen-free it is traditional with the material substitution of plasticiser Soft pvc film becomes the task of top priority for advertising painting industry.

Utility model content

Technical problem to be solved by the utility model is: in view of the above shortcomings of the prior art, providing a kind of linerless CPP Cold lamination film.

The solution that the utility model solves its technical problem is: a kind of linerless CPP cold lamination film, from top to bottom by CPP base membrane layer, priming coat and water-borne pressure sensitive adhesive adhesion coating composition, the tensile strength of the CPP base membrane layer is in 600~1200g/25mm In range, elongation at break >=300%, upper surface dyne value≤30.

Wherein, the priming coat is made by opening the concordant abundant commercially available RA-10 resin of adhesive article Science and Technology Ltd., institute The water-borne pressure sensitive adhesive adhesion coating stated is made by opening the concordant abundant commercially available PSA911 glue of adhesive article Science and Technology Ltd..

As a further improvement of the above technical scheme, the CPP base membrane layer with a thickness of 31~35 μm.

As a further improvement of the above technical scheme, a dyne value for the lower surface of the CPP base membrane layer is 38~42.Tool Body, dyne value of the restriction can be realized by sided corona treatment, be conducive to the adhesive force for improving CPP base membrane layer and priming coat.

As a further improvement of the above technical scheme, the priming coat with a thickness of 1~5 μm.

As a further improvement of the above technical scheme, the aqueous pressure sensitive adhesive layer with a thickness of 8~12 μm.

Specifically, the thickness limit of the priming coat and aqueous pressure sensitive adhesive layer is conducive to play the CPP base membrane layer excellent Different ductility, while being conducive to improve the winding length and peel strength of entire CPP cold lamination film, to be more suitable for the wide of curved surface Accuse the overlay film protection of air brushing.

A kind of improvement as above-mentioned technical proposal, the CPP base membrane layer is from top to bottom by surface layer, casing play and bottom group At the surface layer is propylene-ethylene-vinyl acetate ter-polymer resin layer, and the casing play is high fusion index PP pellet Layer, the bottom are low melt index PP pellet layer.

Specifically, the propylene-ethylene-vinyl acetate ter-polymer resin can be raw by the Guangdong Yongning Zhong Shan company The commercially available acquisition of E28 trade mark resin of production.The high fusion index PP pellet generally refers to melt index in 3.5~3.8g/ High fusion index PP pellet within the scope of 10min can pass through the trade mark L5E89 of Sichuan petrochemical iy produced or the board of Guangxi petrochemical iy produced Number commercially available acquisition of L5D89.The low melt index PP pellet generally refers to melt index within the scope of 2.9~3.2g/10min Low melt index PP pellet, can by Lanzhou Petrochemical produce trade mark SP179 or Fushun petrochemical iy produced trade mark T305 it is commercially available It obtains.The propylene-ethylene-vinyl acetate ter-polymer resin layer not only has between the low melt index PP pellet layer There is dissociation power appropriate and also there is dissociation power appropriate between the aqueous pressure sensitive adhesive layer, so that direct receipts can be realized Volume and uncoiling.

As a further improvement of the above technical scheme, the surface layer with a thickness of 2~3 μm, casing play with a thickness of 26 ~30 μm, bottom with a thickness of 2~3 μm.Wherein the restriction of skin depth advantageously reduces the adhesive force of aqueous pressure sensitive adhesive layer, To make the CPP cold lamination film reduce deflection when carrying out uncoiling.

As an alternative to the above-described technical solution, the CPP base membrane layer is made of casing play and bottom from top to bottom, The upper surface of the casing play is equipped with embossed layer, and the casing play is high fusion index PP pellet layer, and the bottom is low Melt index PP pellet layer.

Specifically, the high fusion index PP pellet generally refers to melt index within the scope of 3.5~3.8g/10min High fusion index PP pellet, can be commercially available by the trade mark L5E89 of Sichuan petrochemical iy produced or the trade mark L5D89 of Guangxi petrochemical iy produced It obtains.The low melt index PP pellet generally refers to low melt of the melt index within the scope of 2.9~3.2g/10min and refers to Number PP pellet, the commercially available acquisition of trade mark T305 of the trade mark SP179 or Fushun petrochemical iy produced that can be produced by Lanzhou Petrochemical.The pressure Line process layer can effectively reduce the contact area of aqueous pressure sensitive adhesive layer and casing play, to make casing play and aqueous pressure sensing adhesive There is dissociation power appropriate between layer.The embossed layer declines the transparency of the CPP cold lamination film, is particularly suitable for needing mist The CPP cold lamination film of face effect.

As a further improvement of the above technical scheme, the casing play with a thickness of 29~32 μm, bottom with a thickness of 2 ~3 μm.Wherein defining for underlayer thickness is conducive to form dissociation power appropriate with the casing play for being equipped with embossed layer, to make The CPP cold lamination film carries out reducing deflection when uncoiling.

The beneficial effects of the utility model are: the utility model is by using the excellent CPP film of flexibility as basement membrane Layer, the PVC film instead of tradition containing halogen, and water-borne pressure sensitive adhesive adhesion coating is used, environmentally friendly VOC free discharge, without release Paper or release film are directly wound, and are easy to use, and wind length up to 200 meters, i.e. the 4 of traditional product times effectively reduce replacement The number of coiled material is conducive to continuous overlay film, greatly increases production efficiency.On the other hand also overcome traditional product use from The drawbacks of type paper or release film cause a large amount of wastes.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it His design scheme and attached drawing.

Fig. 1 is the schematic diagram of a layer structure of 1 finished product of the embodiments of the present invention；

Fig. 2 is the schematic diagram of a layer structure of 3 finished product of the embodiments of the present invention.

Specific embodiment

It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation Clear, complete description, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection It encloses.In addition, all connection/connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality Situation is applied, by adding or reducing couple auxiliary, Lai Zucheng more preferably coupling structure.Each technology in the invention is special Sign, can be with combination of interactions under the premise of not conflicting conflict.

Embodiment 1

Referring to Fig.1, a kind of linerless CPP cold lamination film, from top to bottom by with a thickness of 31 μm CPP base membrane layer, with a thickness of 5 μm priming coat 2 and with a thickness of 8 μm water-borne pressure sensitive adhesive adhesion coating 3 form, wherein the CPP base membrane layer from top to bottom by with a thickness of 3 μm of surface layer 11, the casing play 12 with a thickness of 26 μm and the composition of the bottom 13 with a thickness of 2 μm, the surface layer 11 are propylene-second Alkene-vinyl acetate ter-polymer resin layer, the casing play 12 are high fusion index PP pellet layer, and the bottom 13 is eutectic Melt indices P P pellet layer.A dyne value for the lower surface of the CPP base membrane layer is 38.

The tensile strength of the CPP base membrane layer is within the scope of 600~1200g/25mm, elongation at break >=300%, upper table Face dyne value≤30.180 degree peel strength >=3N/24mm of the present embodiment CPP cold lamination film, retentivity >=30min, longitudinal direction, cross To elongation at break > 300%, it is applicable to the overlay film protection of curved surface advertising painting.

Embodiment 2

A kind of linerless CPP cold lamination film, from top to bottom by with a thickness of 35 μm CPP base membrane layer, with a thickness of 1 μm of primary coat Layer and with a thickness of 12 μm water-borne pressure sensitive adhesive adhesion coating form, wherein the CPP base membrane layer is from top to bottom by the table with a thickness of 2 μm Layer forms with a thickness of 30 μm of casing plays and with a thickness of 3 μm of bottom, and the surface layer is total for propylene-ethylene-vinyl acetate ternary Copolymer resin layer, the casing play are high fusion index PP pellet layer, and the bottom is low melt index PP pellet layer.It is described A dyne value for the lower surface of CPP base membrane layer is 42.

The tensile strength of the CPP base membrane layer is within the scope of 600~1200g/25mm, elongation at break >=300%, upper table Face dyne value≤30.180 degree peel strength >=3N/24mm of the present embodiment CPP cold lamination film, retentivity >=30min, longitudinal direction, cross To elongation at break > 300%, it is applicable to the overlay film protection of curved surface advertising painting.

Embodiment 3

Referring to Fig. 2, a kind of linerless CPP cold lamination film, from top to bottom by with a thickness of 31 μm CPP base membrane layer, with a thickness of 5 μm priming coat 2 and with a thickness of 8 μm water-borne pressure sensitive adhesive adhesion coating 3 form, wherein the CPP base membrane layer is from top to bottom by upper surface The casing play 12 with a thickness of 29 μm equipped with embossed layer 14 and the bottom 13 with a thickness of 2 μm form, and the casing play 12 is High fusion index PP pellet layer, the bottom 13 are low melt index PP pellet layer.Dyne of the lower surface of the CPP base membrane layer Value is 40.

The tensile strength of the CPP base membrane layer is within the scope of 600~1200g/25mm, elongation at break >=300%, upper table Face dyne value≤30.180 degree peel strength >=3N/24mm of the present embodiment CPP cold lamination film, retentivity >=30min, longitudinal direction, cross To elongation at break > 300%, it is applicable to the overlay film protection of curved surface advertising painting.

Embodiment 4

A kind of linerless CPP cold lamination film, from top to bottom by with a thickness of 35 μm CPP base membrane layer, with a thickness of 1 μm of primary coat Layer and with a thickness of 12 μm water-borne pressure sensitive adhesive adhesion coating form, wherein the CPP base membrane layer from top to bottom by upper surface be equipped with embossing The casing play with a thickness of 32 μm and the bottom composition with a thickness of 3 μm, the casing play of process layer are high fusion index PP pellet Layer, the bottom are low melt index PP pellet layer.A dyne value for the lower surface of the CPP base membrane layer is 38.

The tensile strength of the CPP base membrane layer is within the scope of 600~1200g/25mm, elongation at break >=300%, upper table Face dyne value≤30.180 degree peel strength >=3N/24mm of the present embodiment CPP cold lamination film, retentivity >=30min, longitudinal direction, cross To elongation at break > 300%, it is applicable to the overlay film protection of curved surface advertising painting.

The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.

Claims (9)

1. a kind of linerless CPP cold lamination film, it is characterised in that: glued from top to bottom by CPP base membrane layer, priming coat and water-borne pressure sensitive adhesive Layer composition, the tensile strength of the CPP base membrane layer is within the scope of 600~1200g/25mm, elongation at break >=300%, upper table Face dyne value≤30.

2. a kind of linerless CPP cold lamination film according to claim 1, it is characterised in that: the CPP base membrane layer with a thickness of 31~35 μm.

3. a kind of linerless CPP cold lamination film according to claim 1, it is characterised in that: the lower surface of the CPP base membrane layer Dyne value be 38~42.

4. a kind of linerless CPP cold lamination film according to claim 1, it is characterised in that: the priming coat with a thickness of 1~ 5μm。

5. a kind of linerless CPP cold lamination film according to claim 1, it is characterised in that: the aqueous pressure sensitive adhesive layer With a thickness of 8~12 μm.

6. described in any item a kind of linerless CPP cold lamination films according to claim 1~3, it is characterised in that: the CPP basement membrane Layer is made of surface layer, casing play and bottom from top to bottom, and the surface layer is propylene-ethylene-vinyl acetate ter-polymer resin Layer, the casing play are high fusion index PP pellet layer, and the bottom is low melt index PP pellet layer.

7. a kind of linerless CPP cold lamination film according to claim 6, it is characterised in that: the surface layer with a thickness of 2~3 μ M, casing play with a thickness of 26~30 μm, bottom with a thickness of 2~3 μm.

8. described in any item a kind of linerless CPP cold lamination films according to claim 1~3, it is characterised in that: the CPP basement membrane Layer is made of casing play and bottom from top to bottom, and the upper surface of the casing play is equipped with embossed layer, and the casing play is height Melt index PP pellet layer, the bottom are low melt index PP pellet layer.

9. a kind of linerless CPP cold lamination film according to claim 8, it is characterised in that: the casing play with a thickness of 29 ~32 μm, bottom with a thickness of 2~3 μm.