CN205588737U

CN205588737U - Multilayer composite

Info

Publication number: CN205588737U
Application number: CN201520971290.4U
Authority: CN
Inventors: 许锦才
Original assignee: Huilong Plastics Machinery Co ltd
Current assignee: Huilong Plastics Machinery Co ltd
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2016-09-21
Anticipated expiration: 2025-11-27

Abstract

The utility model relates to a multilayer composite, including substrate and composite bed, the composite bed includes inlayer, intermediate level and skin, and wherein inlayer and skin are the PE layer. The utility model discloses reform transform layering among the prior art and filling work procedure for the multilayer composite who makes has reduced manufacturing cost, and reduced organic material PE's use, also accords with green's theory.

Description

A kind of multilayer materials

Technical field

This utility model relates to a kind of multilayer materials and preparation method thereof, relates to extruding equipment complex in Flexible-Packaging Industry to bag The improvement of package material processing technique, utilizes CaCO in particular to one₃The method reducing multilayer materials processing cost.

Background technology

At present, Flexible-Packaging Industry directly processes casting films with PE for raw material when processing PE casting films or PE extrudes composite membrane Or it is compound to carry out extrusion with PE for raw material, its processing cost is mainly determined by the price of PE.Identical and add in technical specification In the case of work thickness is identical, if most PE can be removed to replace with the material that price is relatively low, processing cost is inevitable big Width reduces.CaCO₃It is a kind of common mineral, it may be said that be inexhaustible raw material, through the CaCO that certain technique system is joined₃ Inserts is used widely in Flexible-Packaging Industry, its price price far below PE.No matter process PE casting films at present Or the thickness of PE extrusion composite membrane is all at about 20gsm, if, with multi-layer co-extruded technology by the thickness (10gsm of intermediate layer half Left and right) use CaCO₃Inserts replaces, and processing cost will necessarily be greatly reduced, and has economic results in society widely.

Summary of the invention

The purpose of this utility model provides a kind of multilayer materials and preparation method thereof.

For reaching above-mentioned purpose, this utility model by the following technical solutions:

A kind of multilayer materials, including base material 4 and composite bed, described composite bed includes internal layer 3, intermediate layer 2 and outer layer 1, Wherein internal layer 3 and outer layer 1 are PE layer, and intermediate layer 2 is CaCO₃Powder and the mixture of PE.

Preferably, this utility model can be applicable to release paper and cup paper.

Further, the thickness of described internal layer 3, intermediate layer 2 and outer layer 1 is respectively 2～30gsm, 5～60gsm and 2～30gsm, Preferably, the thickness of internal layer 3, intermediate layer 2 and outer layer 1 is respectively 3～10gsm, 6～14gsm and 3～10gsm.

Unit gsm in this utility model refers to gram/m.

Further, described CaCO₃The mixture of powder and PE is with CaCO₃Powder and PE are that the extrusion that raw material makes is combined level Other inserts.

Further, described CaCO₃Powder is the other CaCO of extrusion grade₃。

This utility model has the advantages that

(1) according to the price of current material market, produce with method of the present utility model, can be cost-effective, therefore There is huge economic benefit, be simultaneously used the CaCO of less pollution₃, decrease making of organic material PE With, also comply with the theory of environmental protection.

(2) add the hardness of multilayer materials, enhance deflection.

Accompanying drawing explanation

Fig. 1 is the structure diagram of a kind of multilayer materials of the present utility model.

Detailed description of the invention

Below in conjunction with specific embodiment, this utility model is described further:

Embodiment 1

A kind of multilayer materials, including base material and composite bed, composite bed includes internal layer, intermediate layer and outer layer, wherein internal layer and Outer layer is PE layer, and intermediate layer is CaCO₃Powder and the mixture of PE, the thickness of wherein said internal layer, intermediate layer and outer layer It is respectively PE 5gsm, (CaCO₃+ PE) 10gsm, PE 5gsm, wherein, described in be filled into the CaCO in intermediate layer₃Powder It is 1:1 with the mass ratio of PE.This method is formed by coextrusion mold technology and includes internal layer, intermediate layer and the composite bed of outer layer three layers.

Embodiment 2

A kind of multilayer materials, including base material and composite bed, composite bed includes internal layer, intermediate layer and outer layer, wherein internal layer and Outer layer is PE layer, and intermediate layer is CaCO₃Powder and the mixture of PE, the thickness of wherein said internal layer, intermediate layer and outer layer It is respectively PE 10gsm, (CaCO₃+ PE) 28gsm, PE 10gsm, wherein, described in be filled into the CaCO in intermediate layer₃Powder End is 2:1 with the mass ratio of PE.This method is formed by coextrusion mold technology and includes the compound of internal layer, intermediate layer and outer layer three layers Layer.

Embodiment 3

A kind of multilayer materials, including base material and composite bed, composite bed includes internal layer, intermediate layer and outer layer, wherein internal layer and Outer layer is PE layer, and intermediate layer is CaCO₃Powder and the mixture of PE, the thickness of wherein said internal layer, intermediate layer and outer layer It is respectively PE 12gsm, (CaCO₃+ PE) 36gsm, PE 12gsm, wherein, described in be filled into the CaCO in intermediate layer₃Powder End is 3:1 with the mass ratio of PE.This method is formed by coextrusion mold technology and includes the compound of internal layer, intermediate layer and outer layer three layers Layer.

Embodiment 4

A kind of cup paper, including ply of paper and composite bed, composite bed includes internal layer, intermediate layer and outer layer, and wherein internal layer and outer layer are equal For PE layer, intermediate layer is with CaCO₃Powder and PE are the inserts of the compound rank of extrusion that raw material makes, wherein said internal layer, The thickness of intermediate layer and outer layer is respectively PE 4gsm, (CaCO₃+ PE) 12gsm, PE 4gsm, wherein, described in be filled into The CaCO in intermediate layer₃Powder is 3:1 with the mass ratio of PE.This method is formed by coextrusion mold technology and includes internal layer, intermediate layer Composite bed with outer layer three layers.

The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is not limited thereto, Any belong to those skilled in the art in the technical scope that this utility model discloses, the change that can readily occur in or replacement, All should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the guarantor of claim The scope of protecting is as the criterion.

Claims

1. a multilayer materials, it is characterised in that including that base material and composite bed, described composite bed include internal layer, intermediate layer and outer layer, wherein internal layer and outer layer are PE layer.

Multilayer materials the most according to claim 1, it is characterised in that the thickness of internal layer, intermediate layer and outer layer is respectively 2～30gsm, 5～60gsm and 2～30gsm.

Multilayer materials the most according to claim 2, it is characterised in that the thickness of internal layer, intermediate layer and outer layer is respectively 3～10gsm, 6～14gsm and 3～10gsm.