High-barrier anti-ultraviolet environment-friendly PET composite flexible packaging material and preparation method thereof

An anti-ultraviolet and high-barrier technology, applied in the field of packaging materials, can solve the problems of reduced adhesion between PET and PP composite materials and ink, poor adhesion of surface ink, and easy spoilage of food, so as to increase anti-ultraviolet performance and improve the barrier. Sexuality, the effect of slowing down spoilage and corruption

Active Publication Date: 2017-06-13
晋江市中辉印刷包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in recent years, the use of PET and PP in the field of food packaging has been increasing year by year, but the common problem of both is that the barrier property and the adhesion of surface ink are poor, which makes the packaged food easy to deteriorate and spoil
[0003] Therefore, researchers have studied the blending modification of PET and PP in order to obtain a composite packaging material with good barrier properties. Although the barrier properties of PET and PP composite materials have been improved to a certain extent, the ensuing It is the reduction of adhesion between PET and PP composite materials and ink and the weakening of mechanical properties. At present, in the field of food packaging, most of them use environmentally friendly alcohol-soluble inks to print on the surface of packaging materials to give packaging materials a beautiful appearance. Therefore, PET Research on composite flexible packaging materials still has great significance

Method used

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  • High-barrier anti-ultraviolet environment-friendly PET composite flexible packaging material and preparation method thereof
  • High-barrier anti-ultraviolet environment-friendly PET composite flexible packaging material and preparation method thereof
  • High-barrier anti-ultraviolet environment-friendly PET composite flexible packaging material and preparation method thereof

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Embodiment 1 to Embodiment 4

[0025] Embodiment 1 to embodiment 4 prepare the preparation method of high barrier anti-ultraviolet environmental protection PET composite flexible packaging material as follows:

Embodiment 1

[0027] The preparation method of described high barrier ultraviolet ray-resistant environment-friendly PET composite flexible packaging material comprises the steps:

[0028] Step 1: According to the mass ratio, weigh the raw materials required for the substrate layer, and mix polypropylene, polyethylene terephthalate, styrene-ethylene-propylene-styrene block copolymer, Polylactic acid, composite ultraviolet absorber, antioxidant and zinc stearate are placed in a high mixer, mixed and stirred evenly, tape-cast at 210°C, cooled and trimmed to obtain the substrate layer, wherein the The speed during stirring is 1000r / min;

[0029] Step 2: According to the mass ratio, weigh the raw materials required for the ink layer, add alcohol-soluble polyurethane resin and alcohol-soluble acrylic resin to ethanol in turn, after stirring evenly, add leveling agent, ω-H fluorocarbon Alcohol, continue to stir, and add pigment while stirring, after stirring evenly, get printing ink, wherein the...

Embodiment 2

[0032] The present invention also provides a preparation method of the high-barrier, ultraviolet-resistant and environment-friendly PET composite flexible packaging material, comprising the following steps:

[0033] Step 1: According to the mass ratio, weigh the raw materials required for the substrate layer, and mix polypropylene, polyethylene terephthalate, styrene-ethylene-propylene-styrene block copolymer, Polylactic acid, composite ultraviolet absorber, antioxidant and zinc stearate are placed in a high mixer, mixed and stirred evenly, tape-cast at 205°C, cooled and trimmed to obtain the substrate layer, wherein the The speed during the stirring is 800r / min;

[0034] Step 2: According to the mass ratio, weigh the raw materials required for the ink layer, add alcohol-soluble polyurethane resin and alcohol-soluble acrylic resin to ethanol in turn, after stirring evenly, add leveling agent, ω-H fluorocarbon Alcohol, continue to stir, and add pigment while stirring, after st...

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Abstract

The invention relates to a high-barrier anti-ultraviolet environment-friendly PET composite flexible packaging material and belongs to the technical field of packaging materials. The high-barrier anti-ultraviolet environment-friendly PET composite flexible packaging material comprises a base material layer and an ink layer, wherein the ink layer coats the surface of the base material layer; the base material layer is prepared from the following components in percentage by mass: polypropylene, polyethylene glycol terephthalate, 4.85%-7% styrene-ethylene-propylene-styrene segmented copolymer, polylactic acid, a composite ultraviolet light absorber, an antioxidant and zinc stearate; the ink layer is prepared from the following components in percentage by mass: alcohol-soluble polyurethane resin, alcohol-soluble acrylic resin, omega-fluorocarbon alcohol, ethanol, a pigment and a flatting agent. The composite flexible packaging material has excellent water vapor and oxygen barrier properties, and the adhesive force of the ink layer and the base material is relatively good.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to a high-blocking, ultraviolet-resistant and environment-friendly PET composite flexible packaging material. Background technique [0002] PET, that is, polyethylene terephthalate, is a polar polymer. It is a highly crystalline polymer of milky white or light yellow. It has excellent electrical insulation and has good electrical properties even at high temperatures, and its It has good physical properties in a wide temperature range, and its raw material sources are abundant, and it is widely used in various fields of daily life. Polypropylene (PP) is a non-polar polymer with rich sources of raw materials, low price, low relative density, excellent processing performance, good stress crack resistance and high heat resistance, non-toxic, tasteless, glossy Good performance, widely used in packaging, automobiles, machinery and other fields. Especially in rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/12C08L53/02C08L67/04C08K5/00C08K5/098C08K5/132C08K5/3475C09D11/107C09D11/102C09D11/03
CPCC08L67/02C08L2201/08C08L2201/14C08L2205/035C09D11/03C09D11/102C09D11/107C08L23/12C08L53/025C08L67/04C08K5/00C08K5/098C08K5/132C08K5/3475
Inventor 柯志纯
Owner 晋江市中辉印刷包装有限公司
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