CN201863462U

CN201863462U - Release film

Info

Publication number: CN201863462U
Application number: CN2010202443302U
Authority: CN
Inventors: 彭胜石
Original assignee: FOSHAN SUXING MASTERBATCH CO LTD
Current assignee: FOSHAN SUXING MASTERBATCH CO LTD
Priority date: 2010-06-22
Filing date: 2010-06-22
Publication date: 2011-06-15
Anticipated expiration: 2020-06-22

Abstract

The utility model provides a release film, which is characterized in that the release film comprises a base material layer and a release layer arranged on the base material layer. The special points of the release film are as follows: the base material layer and the release layer are of co-extrusion structure; the material of the base material layer forming the co-extrusion structure is thermoplastic plastic or a blend of the thermoplastic plastic; and the material of the release layer forming the co-extrusion structure is the mixture of the thermoplastic plastic and organic silicon, or the mixture of the thermoplastic plastic and organic fluorine, or the mixture of the thermoplastic plastic as well as the organic silicon and the organic fluorine. Compared with existing technology, the release film has the advantages of adopting simple process, having high production efficiency, needing lower production cost and needing no solvent.

Description

A kind of mould release membrance

Technical field:

The utility model relates to a kind of film.

Background technology:

Mould release membrance also claims antiadhesion barrier, is the indispensable materials of pressure-sensitive adhesive goods, and main effect is that protection is coated on the pressure-sensitive adhesive layer on the base material, to prevent contaminated or to cling other article or glue-line loses use value after being sticked one another.

Now, people coat suitable antitack agent on various paper or the plastic film substrate, can obtain release liners or mould release membrance behind overcuring.Good combination property, applied widely and be the major advantage of solvent-borne type antitack agent than being easier to make, this makes the status that it still keeps on top up to now in mould release membrance (paper) market.The manufacture process of emulsion type or non-solvent mould release membrance (paper) is because working condition requires height or cost costliness only to be used on a small quantity.

Goal of the invention of the present utility model is to provide that a kind of production technology is simple, production efficiency is high, solvent-free and mould release membrance that cost is low.

The utility model is to realize like this, comprise substrate layer and the release layer that is arranged on substrate layer, its special feature is that substrate layer and release layer are coextruded structure, the material that constitutes the substrate layer of coextruded structure is the blend of thermoplastic or thermoplastic, and the material that constitutes the release layer of coextruded structure is the compound of the compound of thermoplastic and organosilyl compound or thermoplastic and Organic fluoride or thermoplastic and organosilicon, Organic fluoride.Owing to adopted coextrusion processes production, have the advantage that technology is simple, production efficiency is high and cost is low, and production process do not needed solvent, environmental protection more.

Here, the mixture of organosilicon or Organic fluoride or organosilicon and Organic fluoride accounts for the 1.0--60% of the gross weight of release layer.

Plastics are thermoplastics, comprise polypropylene or polyethylene.

The utility model compared with prior art has the advantage that technology is simple, production efficiency is high, production cost is lower and need not solvent.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of the utility model embodiment 2;

Fig. 3 is the structural representation of the utility model embodiment 3.

The specific embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail.

Embodiment 1: as shown in Figure 1, this reality is novel to comprise substrate layer 1, be arranged on a wherein lip-deep release layer 2 of substrate layer 1, its special feature is that substrate layer 1, release layer 2 are coextruded structure, the material that constitutes the substrate layer of coextruded structure is the blend of thermoplastic or thermoplastic, and the material that constitutes the release layer 2 of coextruded structure is the blend composition of thermoplastic and organosilyl blend composition or the blend composition of thermoplastic and Organic fluoride or thermoplastic and organosilicon, Organic fluoride.

The mixture of organosilicon or Organic fluoride or organosilicon and Organic fluoride is 1--60%wt at the content of release layer.

Plastics are thermoplastics, comprise polypropylene or polyethylene.

Embodiment 2: as shown in Figure 2, present embodiment is on the basis of embodiment 1, and the release layer 3 with coextrusion structure also is set on another surface of substrate layer 1.

Embodiment 3: as shown in Figure 3, present embodiment is on the basis of embodiment 2, and substrate layer 1 is identical with the material of release layer 2, release layer 3, and promptly three layers material is the same, also can be regarded as single layer structure.

Claims

1. a mould release membrance is characterized in that comprising substrate layer and the release layer that is arranged on the substrate layer, and its special feature is that substrate layer and release layer are coextruded structure, and the material that constitutes the substrate layer of coextruded structure is the blend of thermoplastic or thermoplastic.

2. mould release membrance according to claim 1 is characterized in that thermoplastic is polypropylene or polyethylene.