CN204820560U

CN204820560U - Height glues self -adhesion protection film

Info

Publication number: CN204820560U
Application number: CN201520444728.3U
Authority: CN
Inventors: 罗光宇
Original assignee: Protective Film (suzhou) Co Ltd
Current assignee: Protective Film (suzhou) Co Ltd
Priority date: 2015-06-26
Filing date: 2015-06-26
Publication date: 2015-12-02
Anticipated expiration: 2025-06-26

Abstract

The utility model discloses a height glues self -adhesion protection film, height glues self -adhesion protection film include self -adhesive layer, intermediate level from top to bottom in proper order and have added the antiseized backing layer of antiseized masterbatch, the utility model discloses an among the height glues self -adhesion protection film, the viscidity of self -adhesive layer is big, and the self -adhesive layer made things convenient for the uncoiling to the bonding of backing layer when antiseized backing layer effectively prevented the rolling, and wherein, antiseized backing layer is the antiseized backing layer that linear low density polyethylene, low density polyethylene and antiseized masterbatch were prepared from, when the joining of antiseized masterbatch prevents the rolling self -adhesive layer to the bonding of backing layer and do benefit to the uncoiling, guarantee indeformablely from the mucosa simultaneously. The utility model discloses a height glues self -adhesion protection film is the rubber coating in addition, and self -adhesive layer sticky roll does not not produce fold, foaming phenomenon in the production process.

Description

A kind of high sticky adhesive protecting film

Technical field

The utility model belongs to co-extrusion self-adhesive film field, is specifically related to a kind of high sticky adhesive protecting film.

Background technology

Diaphragm divides by character can be divided into coating glue film and self-adhesive film; self-adhesive film is the abbreviation of tack diaphragm; be used for protecting the plastic sheeting of surperficial rapid wear; comparatively coating glue film; self-adhesive film has more advantage; as without cull, adhesion strength is stable, cost is low and profit is high, self-adhesive film becomes the main flow in market in recent years.According to the size of self-adhesive film viscosity, viscosity is divided into low sticky, high sticky, extra-high sticky self-adhesive film by 0.45N/25mm (25 DEG C) to 1.5N/25mm (25 DEG C) to 3.6N/25mm (25 DEG C).

Self-adhesive film is generally produce in the mode of co-extrusion, in one-time formed co-extrusion self-adhesive film field, because the difficulty of technique and formula is all comparatively large, can only make low viscous co-extrusion product at present.There are some problems in high sticky product in the market, and such as uncoiling is difficult, uncoiling power is poor, produces bubble etc., the phenomenons such as in process of production, viscous layer also there will be roll banding, fold, rolling foaming.

Utility model content

For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high sticky adhesive protecting film, and easy uncoiling, not roll banding in the sticky adhesive protecting film production process of this height, do not produce fold, foaming phenomena.

For reaching this object, the utility model by the following technical solutions:

A kind of high sticky adhesive protecting film, comprises self-adhesive layer, intermediate layer from top to bottom successively and with the addition of the antiseized backing layer of anti-adhesion master batch.

Wherein, described anti-adhesion master batch is the anti-adhesion master batch be prepared from by polypropylene and synthetic silica.Extrude through extruder after synthetic silica is fully mixed with masterbatch carrier polypropylene, dry, pelletizing makes anti-adhesion master batch; The low price of synthetic silica, specific area is large, the anti-adhesion master batch anti-adhesion effects that is prepared into polypropylene is splendid.

Wherein, described self-adhesive layer is the self-adhesive layer be prepared from by modified SEBS and LLDPE.SEBS take polystyrene as end segment, and the ethylene-butene copolymer obtained with polybutadiene hydrogenation is the linear three embedding copolymers of middle spring block.SEBS containing unsaturated double-bond, does not therefore have good stability and resistance to ag(e)ing.SEBS has excellent ageing-resistant performance, both there is plasticity, again there is high resiliency, can use be processed without the need to sulfuration, leftover pieces can heavily use, and are widely used in and produce high-grade elastomer, modifying plastics, adhesive, lubricant tackifier, the inserts of electric wire and protective cover material etc.SEBS has the mechanical property of good weatherability, heat resistance, compression resistant morphotropism and excellence.In addition, the fusing point of SEBS is higher, can have more stable molten condition at high operating temperatures, can improve self-adhesive layer melt strength at high operating temperatures, avoids self-adhesive layer to be destroyed.

Preferably, modified SEBS is by SEBS and tackifying resin, Hydrogenated SBS, PE blending and modifying, obtains through kneading, preparation.Utilize modified SEBS to be made into the self-adhesive layer of different viscosities as required, be then covered on sheet material through subsequent machining technology, such as baking, bending, punching press etc., design the adhesive protecting film of different performance.

Polyethylene (POLYETHYLENE, PE) is the polymer formed by vinyl polymerization, and production development is existing about 60 years history so far, and global polyethylene production occupies first of five large general resins.Polyethylene, according to the difference of polymerization, molecular weight height, chain structure, is divided into high density polyethylene (HDPE), low density polyethylene (LDPE) and LLDPE.

Low density polyethylene (LDPE) (LOWDENSITYPOLYETHYLENE, LDPE) is commonly called as polyethylene from high pressure process, and because density is lower, material is the softest, is mainly used in plastic bag, film for agricultural use etc.

High density polyethylene (HDPE) (HIGHDENSITYPOLYETHYLENE, HDPE) low-pressure polyethylene is commonly called as, compare with LDPE and LLDPE, there are higher heatproof, oil resistivity, resistance to vapour permeability and environmental stress crack resistance, in addition electrical insulating property and impact resistance and cold tolerance fine, be mainly used in the field such as blowing, injection moulding.

Linear low density polyethylene (LLDPE) (LINEARLOWDENSITYPOLYETHYLENE, LLDPE) is then the copolymer that ethene and a small amount of high alpha-olefin are polymerized in the presence of a catalyst.The advantages such as LLDPE outward appearance is similar to LDPE, and the transparency is more poor, and lustrous surface is good, has low-temperature flexibility, high-modulus, counter-bending and stress cracking resistance, and under low temperature impact strength is better.

Preferably, the thickness of described self-adhesive layer is 4 ~ 8 μm, and the thickness in described intermediate layer is 20 ~ 50 μm, and the thickness of described antiseized backing layer is 4 ~ 8 μm.

Compared with prior art, the beneficial effects of the utility model are: a kind of high sticky adhesive protecting film, comprises self-adhesive layer, intermediate layer from top to bottom successively and with the addition of the antiseized backing layer of anti-adhesion master batch; Height of the present utility model glues in adhesive protecting film, and the viscosity of self-adhesive layer is large, and when antiseized backing layer effectively prevents rolling, self-adhesive layer is to the bonding of backing layer, facilitates uncoiling; Wherein, antiseized backing layer selects LLDPE, low density polyethylene (LDPE) and anti-adhesion master batch to be prepared from, and the self-adhesive layer that to add when preventing rolling of anti-adhesion master batch is beneficial to uncoiling to the bonding of backing layer, ensures that self-adhesive film is indeformable simultaneously.Height of the present utility model glues adhesive protecting film need not gluing in addition, easy uncoiling, and not roll banding in production process, does not produce fold, foaming phenomena.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of high sticky adhesive protecting film of the present utility model;

Fig. 2 is the structural representation of the production equipment of a kind of high sticky adhesive protecting film of prior art.

Reference numeral is as follows:

1-self-adhesive layer; 2-intermediate layer; The antiseized backing layer of 3-, 4-extruder; 5-blower fan; 6-surely steeps frame roller; 7-herringbone is arranged; 8-nip rolls; 9-draws nip rolls; 10-cutting knife; 11-wind-up roll.

Detailed description of the invention

The technical solution of the utility model is further illustrated below by the drawings and specific embodiments.

As shown in Figure 1, a kind of high sticky adhesive protecting film of the present utility model, comprises self-adhesive layer 1, intermediate layer 2 from top to bottom successively and with the addition of the antiseized backing layer 3 of anti-adhesion master batch.

As shown in Figure 2; when producing high sticky self-adhesive film; the material of self-adhesive layer as above, intermediate layer, antiseized backing layer is put into extruder 4 and is extruded into die head; blow out through blower fan 5 and form mould bubble; mould bubble by the steady bubble frame roller 6 of release treatment through herringbone row 7 pressed from both sides by nip rolls 8 flat after after traction nip rolls 9 drawing-off process after cutting knife 10 is split by wind-up roll 11 rolling, obtain described height and glue adhesive protecting film.Wherein, steady bubble frame roller 6 applies the release treatment that F-C paint does steady bubble frame roller, and the anti-adhesion effects of F-C paint is good, can reduce the viscous force of self-adhesive film, avoid mould to steep shake and film wrinkling.Traction nip rolls 9 is silicon rubber nip rolls, and silicon rubber nip rolls can prevent the self-adhesive layer of self-adhesive film and the bonding of nip rolls, reduces tractive resistance, avoids the problem producing bubble, surface wrinkling.

As one of preference of the present utility model, a kind of high sticky adhesive protecting film, comprise self-adhesive layer 1, intermediate layer 2 and antiseized backing layer 3 from top to bottom successively, antiseized backing layer 3 is for the addition of the antiseized backing layer of anti-adhesion master batch, wherein, self-adhesive layer 1 by weight percentage, is prepared from by the modified SEBS of 85% and the LLDPE of 15%; Intermediate layer 2 by weight percentage, is prepared from by 80% LLDPE and 20% low density polyethylene (LDPE); Antiseized backing layer 3 by weight percentage, be prepared from by 70% LLDPE, 15% low density polyethylene (LDPE), 15% anti-adhesion master batch, anti-adhesion master batch by weight percentage, be prepared from by 85% polypropylene and 15% synthetic silica, the thickness of self-adhesive layer 1 is 4um, the thickness in intermediate layer 2 is 20um, and the thickness of antiseized backing layer 3 is 4um.

As preference two of the present utility model, a kind of high sticky adhesive protecting film, comprise self-adhesive layer 1, intermediate layer 2 and antiseized backing layer 3 from top to bottom successively, antiseized backing layer 3 is for the addition of the antiseized backing layer of anti-adhesion master batch, wherein, self-adhesive layer 1 by weight percentage, is prepared from by the modified SEBS of 90% and the LLDPE of 10%; Intermediate layer 2 by weight percentage, is prepared from by 85% LLDPE and 15% low density polyethylene (LDPE); Antiseized backing layer 3 by weight percentage, be prepared from by 65% LLDPE, 20% low density polyethylene (LDPE), 15% anti-adhesion master batch, anti-adhesion master batch by weight percentage, be prepared from by 90% polypropylene and 10% synthetic silica, the thickness of self-adhesive layer 1 is 6um, the thickness in intermediate layer 2 is 35um, and the thickness of antiseized backing layer 3 is 6um.

As preference three of the present utility model, a kind of high sticky adhesive protecting film, comprise self-adhesive layer 1, intermediate layer 2 and antiseized backing layer 3 from top to bottom successively, antiseized backing layer 3 is for the addition of the antiseized backing layer of anti-adhesion master batch, wherein, self-adhesive layer 1 by weight percentage, is prepared from by the modified SEBS of 80% and the LLDPE of 20%; Intermediate layer 2 by weight percentage, is prepared from by 75% LLDPE and 25% low density polyethylene (LDPE); Antiseized backing layer 3 by weight percentage, be prepared from by 75% LLDPE, 10% low density polyethylene (LDPE), 15% anti-adhesion master batch, anti-adhesion master batch by weight percentage, be prepared from by 90% polypropylene and 10% synthetic silica, the thickness of self-adhesive layer 1 is 8um, the thickness in intermediate layer 2 is 50um, and the thickness of antiseized backing layer 3 is 8um.

Height of the present utility model glues self-adhesive film, modified SEBS and LLDPE is selected to be prepared from self-adhesive layer, with LLDPE material for main component, add and to make after modified SEBS diaphragm have good tack stability and resistance to ag(e)ing and good processing characteristics; Intermediate layer selects LLDPE and low density polyethylene (LDPE) to be prepared from; Low density polyethylene (LDPE) is because density is low, material is soft, the main object playing adjustment processability, antiseized backing layer selects LLDPE, low density polyethylene (LDPE) and anti-adhesion master batch to be prepared from, the self-adhesive layer that to add when preventing rolling of anti-adhesion master batch is beneficial to uncoiling to the bonding of backing layer, ensures that self-adhesive film is indeformable simultaneously.Height of the present utility model glues self-adhesive film not roll banding, facilitates uncoiling, does not produce the problem that fold bubbles in production process.

Applicant states, above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.

Claims

1. a high sticky adhesive protecting film, is characterized in that, comprises self-adhesive layer (1), intermediate layer (2) from top to bottom successively and with the addition of the antiseized backing layer (3) of anti-adhesion master batch.

2. a kind of high sticky adhesive protecting film according to claim 1, it is characterized in that, the thickness of described self-adhesive layer (1) is 4 ~ 8 μm.

3. a kind of high sticky adhesive protecting film according to claim 1, it is characterized in that, the thickness of described intermediate layer (2) is 20 ~ 50 μm.

4. a kind of high sticky adhesive protecting film according to claim 1, it is characterized in that, the thickness of described antiseized backing layer (3) is 4 ~ 8 μm.