Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of matting type high-barrier biaxially stretched polypropylene cold-seal base film and preparation method thereof

A biaxially oriented, polypropylene technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problem that the cold sealing base film does not have barrier properties, colloid residue, and affects the production efficiency of cold sealing film. And other issues

Active Publication Date: 2021-06-22
ANHUI GUOFENG PLASTIC
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the ordinary biaxially oriented polypropylene film is used as a cold-seal substrate, it is necessary to coat the outer surface with a silicon-based release material to avoid colloid residues when the cold-seal adhesive is peeled off, and the coating process affects the production of the cold-seal film. efficiency
[0006] And ordinary cold-seal base film does not have barrier properties, it needs to be compounded with barrier material or coated with barrier layer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of matting type high-barrier biaxially stretched polypropylene cold-seal base film and preparation method thereof
  • A kind of matting type high-barrier biaxially stretched polypropylene cold-seal base film and preparation method thereof
  • A kind of matting type high-barrier biaxially stretched polypropylene cold-seal base film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Coating-type anti-blocking masterbatch is mixed with amorphous silica with an average particle size of 5 μm and homopolypropylene, and the mass percentage of amorphous silica is 5%;

[0039] The release anti-adhesion masterbatch is formed by mixing spherical glass microspheres with an average particle size of 3.5 μm and homopolypropylene, wherein the release-type anti-adhesion masterbatch has a mass percentage of 5%.

[0040] The antistatic masterbatch is made of polyglyceryl stearate, polyethylene glycol stearate, N, N-dihydroxyethyl octadecylamine, fatty alcohol polyetheramide, polyoxyethylene compound and homopolypropylene blends.

[0041] The matting masterbatch is made of Shanghai Petrochemical polypropylene FC801MX 40%, Basel low-density polyethylene Lupolen3020K 55%, tetrakis (β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) pentaerythritol ester Antioxidant 5%, through twin-screw extruder, extruded, pelletized and dried.

[0042] A matting type high-barrier b...

Embodiment 2

[0048] Coating-type anti-blocking masterbatch is made by mixing amorphous silica with an average particle size of 5 μm and homopolypropylene, wherein the mass percentage of amorphous silica is 10%;

[0049] The release anti-adhesion masterbatch is formed by mixing spherical glass microspheres with an average particle size of 3.5 μm and homopolypropylene, wherein the release-type anti-adhesion masterbatch has a mass percentage of 10%.

[0050] The antistatic masterbatch is made of polyglyceryl stearate, polyethylene glycol stearate, N, N-dihydroxyethyl octadecylamine, fatty alcohol polyetheramide, polyoxyethylene compound and homopolypropylene blends.

[0051] The matting masterbatch is made of Shanghai Petrochemical polypropylene FC801MX 50%, Basel low-density polyethylene Lupolen3020K 45%, tetrakis (β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) pentaerythritol ester Antioxidant 5%, through twin-screw extruder, extruded, pelletized and dried.

[0052] A matting type high...

Embodiment 3

[0058] A kind of matting type high-barrier biaxially stretched polypropylene cold-seal base film, its steps are as follows:

[0059] a, 5% antistatic masterbatch (polyglyceryl stearate, polyethylene glycol stearate, N, N-dihydroxyethyl octadecylamine, fatty alcohol polyetheramide, polyoxyethylene compound and homopolymer Polypropylene mixture), 95% homopolypropylene, after proportioning, transported to the twin-screw extruder, heated and melted at 250 ° C, and passed through a vacuum filtration system to remove water vapor and small molecular impurities in the raw material, after 400 Candle wick filter to form a core melt;

[0060] Mix 5% antistatic masterbatch (polyglyceryl stearate, polyethylene glycol stearate, N, N-dihydroxyethyl octadecylamine, fatty alcohol polyetheramide, polyoxyethylene compound and homopolymer propylene mixture), 3% release anti-blocking masterbatch, 80% silicone modified polypropylene, 12% homopolypropylene, after proportioning, add to a twin-screw ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a matting type high-barrier biaxially stretched polypropylene cold-sealed base film and a preparation method thereof, which is composed of a release layer, a barrier layer, a core layer and a matting layer in sequence from the outside to the inside. The layer is composed of the following components according to mass percentage: antistatic masterbatch 1~10%, release anti-adhesion masterbatch 1~3%, silicone modified polypropylene 20~80%, polypropylene added to 100%; The barrier layer is composed of the following components by mass percentage: 30-50% of polyvinyl alcohol, 30-50% of ethylene-vinyl alcohol copolymer, and 100% of maleic anhydride grafted polyethylene adhesive resin. The matting layer of the present invention is a matting rough surface. After corona treatment, the surface tension is high, which can be used for the coating of cold sealant, and has strong adhesion and is not easy to degumming; the surface tension of the release layer is extremely low, and there is no need to coat silicon-based release Type layer, and excellent barrier properties.

Description

technical field [0001] The invention relates to the technical field of films, and relates to a matting high-barrier biaxially stretched polypropylene cold-seal base film and a preparation method thereof. Background technique [0002] At the end of the 20th century, cold sealing technology appeared in the flexible packaging industry in Europe. Inspired by self-adhesive envelopes, this technology was first applied in chocolate production. With the continuous expansion of the scope of use, it can also be used for the packaging of heat-sensitive products and medical supplies. [0003] Cold sealing is relative to heat sealing. The sealing temperature of cold sealing materials is generally only 20-40°C, and the sealing temperature of heat sealing materials is generally higher than 80°C. Cold-seal packaging technology has many advantages, such as low odor, no pollution, and direct contact with food to avoid high temperature damage to the contents; high production efficiency, packa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/08B32B7/06B32B27/30B32B27/32B32B38/00B29C48/21B29C55/06
CPCB29C55/06B32B7/06B32B27/06B32B27/08B32B27/306B32B27/32B32B38/0008
Inventor 王红兵李永荃张少伟王恒煜张涛谢城城
Owner ANHUI GUOFENG PLASTIC