Label film and production method thereof

A production method and label technology, applied in the field of packaging labels, can solve the problems of low recyclability of raw materials, difficult recycling of labels, huge demand, etc., and achieve better overall aesthetics, high gloss, and uniform thickness.

Pending Publication Date: 2021-07-30
FOSHAN NANHAI LIDA PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The label is a printed matter that is pasted on the outside of the package to mark product information and promote the culture of the production company. In daily life, daily chemical products and beverage products (the packaging of daily chemical products and beverage products are mostly made of PET or HDPE) have no effect on labels. The demand is huge, and with the increasingly fierce market competition of daily chemical products and beverage products, in order to save costs, it is necessary to reduce the production cost of labels while ensuring the attractiveness of product packaging. Labels made of coated paper, synthetic paper and other materials compounded with a mixture, the above-mentioned labels are low in cost and easy to print, so they are widely used. However, with the popularization of environmental protection concepts in society, the raw materials for the above-mentioned labels are low in recyclability. The label is difficult to recycle, and it is difficult to degrade and easily cause environmental pollution; therefore, related industries urgently need a low-pollution, recyclable environmental protection label material

Method used

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  • Label film and production method thereof
  • Label film and production method thereof
  • Label film and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] see Figure 1 to Figure 3 , a label film 1 of the present embodiment, comprising a superimposed outer layer 2, a middle layer 3 and an inner layer 4, the outside of the outer layer 2 can be used for printing ink, and the inner layer 4 can be used with a release paper package The outer surface of 5 is bonded; the outer layer 2, the middle layer 3 and the inner layer 4 respectively include at least two materials among HDPE, MDPE, LDPE and mPE; the thickness of the label film 1 is 10-100 μm.

[0042] The thickness ratio of the outer layer 2, the middle layer 3 and the inner layer 4 is: 1-5:2-10:1-5.

[0043] The components of the outer layer 2 include at least HDPE and LDPE, the weight percentage of HDPE is 10-20%, and the weight percentage of LDPE is 10-80%; the components of the middle layer 3 include at least HDPE and LDPE, HDPE The weight percentage of LDPE is 10-50%, and the weight percentage of LDPE is 10-50%; The components of the inner layer 4 include at least HDP...

Embodiment 2

[0059] Another object of the present invention is to provide a method for using the label film of the first embodiment, comprising the following steps:

[0060] (1) Retrieval: roll up part of the label film;

[0061] (2) Printing: graphic printing on the outer surface of the label film;

[0062] (3) Cutting: use a mold to die-cut the label film to obtain a roll label containing several labels;

[0063] (4) Labeling: Put the roll label into the labeling machine, cut off a single label on the roll label and coat the inner layer with adhesive to adhere to the outer surface of the package.

[0064] Compared with the prior art, in the method of using a label film of the present invention, the label adopted is easy to print and cut, and has a soft texture, and the label film has good compatibility with adhesives and PE packaging materials. A small amount of adhesive can be closely attached to PE packaging materials, saving the use of adhesives, thereby increasing the labeling spee...

Embodiment 3

[0066] Another object of the present invention is to provide the production method of the label film of the first embodiment above.

[0067] The production method is applied to co-extrusion equipment. The co-extrusion equipment is provided with a feeding mechanism, an extrusion mechanism and a die head. There are three extrusion mechanisms. A filtering device is arranged in the extrusion port of the extrusion mechanism. The extrusion Both the mechanism and the die are equipped with 7 heating zones.

[0068] The three extrusion mechanisms are extrusion mechanism A, extrusion mechanism B and extrusion mechanism C, wherein extrusion mechanism A is used to output the molten inner layer material, and extrusion mechanism B is used to output the molten middle layer material. Mechanism C is used to output the molten outer layer material.

[0069] Described production method comprises the following steps:

[0070] (1) Outer layer materials, middle layer materials and inner layer mate...

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Abstract

The invention provides a label film. The label film comprises an outer layer, a middle layer and an inner layer which are stacked, wherein the outer layer, the middle layer and the inner layer respectively comprise at least two materials of HDPE, MDPE, LDPE and mPE; the outer layer, the middle layer and the inner layer are extruded into a whole through co-extrusion equipment; and the thickness of the label film is 10 to 100 [mu] m; The invention also provides a production method of the label film. The label film provided by the invention is low in cost and convenient to recycle; and according to the production method of the label film provided by the invention, the co-extrusion technology is adopted, different materials are co-extruded through a die head in the molten state, a multi-layer structure with distinct layers is formed, and operation is easy and rapid, so that the label film which is low in cost and convenient to recycle can be rapidly produced on a large scale.

Description

technical field [0001] The invention relates to the field of packaging labels, in particular to a label film and a production method thereof. Background technique [0002] The label is a printed matter that is pasted on the outside of the package to mark product information and promote the culture of the production company. In daily life, daily chemical products and beverage products (the packaging of daily chemical products and beverage products are mostly made of PET or HDPE) have no effect on labels. The demand is huge, and with the increasingly fierce market competition of daily chemical products and beverage products, in order to save costs, it is necessary to reduce the production cost of labels while ensuring the attractiveness of product packaging. Labels made of coated paper, synthetic paper and other materials compounded with a mixture, the above-mentioned labels are low in cost and easy to print, so they are widely used. However, with the popularization of environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/21B29C48/00B29C48/28
CPCB29C48/21B29C48/0017B29C48/001B29C48/28
Inventor 张逢辉孙莉方建权
Owner FOSHAN NANHAI LIDA PACKAGING
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