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Holographic mold-pressing contraction substrate film and manufacturing method thereof

A substrate film, molding technology, applied in the direction of copy/marking method, chemical instrument and method, printing, etc., can solve the problems of low image forming rate, weakening product grade, affecting product packaging effect, etc., to achieve the effect of maintaining integrity

Active Publication Date: 2012-11-28
HAINAN SHINER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the BOPP film currently used for holographic molding is prone to whitening, increased haze, and low image forming rate during holographic molding.
At the same time, in order to maintain the clarity and stability of the pattern during molding, it is required to have no shrinkage during molding, so that the holographic film produced in this way has no shrinkage, and the holographic film has no shrinkage during packaging, so that packaging medicine, Cigarettes, health care products, food, etc. are loose and not tightly attached, which affects the product packaging effect and weakens the grade of the product

Method used

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  • Holographic mold-pressing contraction substrate film and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Ingredients: Produce a film with a thickness of 22 microns. The thickness of the upper layer is 1.0 microns, of which the content of copolymerized polypropylene is 88%, 2% of silicone, and 10% of silicone; the thickness of the middle layer is 19.5 microns, of which homopolypropylene is 79%, petroleum resin is 20%; glycerin monostearate is 0.5% , Polymer amine 0.5%. The lower layer is 1.5 microns thick and contains 99% polypropylene copolymer and 1% silicone.

[0026] Film making: The holographic molded shrinkable substrate film of the present invention is produced by biaxial stretching co-extrusion process, wherein the temperature of the extruder: 220 degrees; the temperature of the casting machine: 22 degrees; the longitudinal stretch ratio: 560%. Heating temperature: 110 degrees, longitudinal stretching temperature: 100 degrees; transverse stretching ratio: 880%, transverse stretching preheating temperature: 173 degrees, transverse stretching temperature: 155 degrees...

Embodiment 2

[0028] Ingredients: Produces a film with a thickness of 21 microns. The thickness of the upper layer is 1.0 microns, of which the content of copolymerized polypropylene is 90%, 1% of silicon dioxide, and 9% of silicone; the thickness of the middle layer is 18.5 microns, of which homopolypropylene is 79% and petroleum resin is 20%; glycerol monostearate is 0.5% , Polymer amine 0.5%. The lower layer is 1.5 microns thick and contains 96% polypropylene copolymer and 4% silicone.

[0029] Film making: The holographic molded shrinkable substrate film of the present invention is produced by biaxial stretching co-extrusion process, wherein the temperature of the extruder: 225 degrees; the temperature of the casting machine: 21 degrees; the longitudinal stretch ratio: 540%. Heating temperature: 106 degrees, longitudinal stretching temperature: 101 degrees; transverse stretching ratio: 870%, transverse stretching preheating temperature: 171 degrees, transverse stretching temperature: 1...

Embodiment 3

[0031] Ingredients: Produce a film with a thickness of 22 microns. The thickness of the upper layer is 1.0 micron, of which the content of copolymerized polypropylene is 88%, 2% of silicone, and 10% of silicone; the thickness of the middle layer is 19.5 micron, of which homopolypropylene is 79% and petroleum resin is 20%; glycerin monostearate is 0.5%, Ethoxylated amines 0.5%. The lower layer is 1.5 microns thick and contains 99% polypropylene copolymer and 1% silicone.

[0032] Film making: The holographic molded shrinkable substrate film of the present invention is produced by biaxial stretching co-extrusion process, wherein the temperature of the extruder: 222 degrees; the temperature of the casting machine: 25 degrees; the longitudinal stretch ratio: 560%. Heating temperature: 105 degrees, longitudinal stretching temperature: 101 degrees; transverse stretching ratio: 880%, transverse stretching preheating temperature: 170 degrees, transverse stretching temperature: 159 de...

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Abstract

The invention relates to a holographic mold-pressing contraction substrate film and a manufacturing method thereof; the substrate film has a three-layer structure of an upper layer, a middle layer, and a lower layer, has a total thickness of 13-38 microns, and is characterized in that the upper layer has a thickness of 0.5-4 microns, and is prepared by the following raw materials by weight: 85-90% of propylene copolymer, 1-3% of anti-adhesion agents, and 6-12% of smoothing agents; the middle layer has a thickness of 12-30 microns, and is prepared by the following raw materials by weight: 76-86% of propylene homopolymer, 0.5-2% of antistatic agents, and 12-28% of petroleum resin; the lower layer has a thickness of 0.5-4 microns, and is prepared by the following raw materials by weight: 95-98% of ultralow-temperature ternary propylene copolymer, and 1-6% of anti-adhesion agents; when a holographic pattern is mold-pressed on the substrate film surface, a complete pattern (with a pattern molding rate of 100%) and the sharpness can be ensured during the mold-pressing process; no whitening occurs; the haze does not increase; and certain thermal contraction capability is maintained after mold pressing.

Description

Technical field [0001] The invention relates to a shrinkable substrate film suitable for holographic molding on the surface and a manufacturing method thereof, belonging to the field of new polymer materials. Background technique [0002] With the development of laser holographic technology, the colorful and vague colors displayed by laser holographic technology give people a dreamy feeling, and are more and more used in the film packaging of medicine, cigarettes, health care products, cosmetics and food. However, the currently used holographically molded BOPP film is prone to whitening, increased haze, and low image forming rate during holographic molding. At the same time, in order to maintain the clarity and stability of the pattern during molding, it is required to have no shrinkage during molding, so that the holographic film produced in this way has no shrinkage, and the holographic film has no shrinkage during packaging. Cigarettes, health care products, food, etc. a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00B32B27/32B32B27/18C08L23/14C08L23/12C08L57/02B29C69/02B29C55/14B29C47/92B29C48/92
CPCB29C48/08B29C48/92B29C2948/92704B29C2948/92923
Inventor 冯任明黎坛
Owner HAINAN SHINER IND
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