Easy-to-tear packaging composite film and extrusion type liquid packaging bag

A composite film and packaging bag technology, applied in the field of plastic packaging, can solve the problems of unsuitable automatic equipment processing, easy liquid leakage, low production efficiency, etc. Effect

Inactive Publication Date: 2020-05-29
JIANGYIN BAOBO PACKING
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the liquid strip packaging is opened with a tear opening or an easy-to-tear line. When tearing, the bag mouth may be damaged and the liquid may overflow, which is limited in high-end packaging applications; the existing liquid strip packaging bags also have It has the following defects, the tear opening is large, the liquid in the bag is easy to leak, and it is inconvenient to use; the original bag type is not suitable for the processing of automatic equipment, and the production efficiency is low; the recognition of the extrusion port of the outer packaging is low, which is inconvenient to use

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
  • Easy-to-tear packaging composite film and extrusion type liquid packaging bag
  • Easy-to-tear packaging composite film and extrusion type liquid packaging bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An easy-to-tear packaging composite film, including an outer protective layer, a middle barrier layer and an inner heat-sealing layer; the thickness of the outer protective layer is 12 μm, and the outer protective layer is PET; the thickness of the middle barrier layer is 7 μm, and the middle barrier layer It is VMPET; the thickness of the inner heat-sealing layer is 30 μm; the outer protective layer, the middle barrier layer and the inner heat-sealing layer are compounded by dry compounding process.

[0033]The matrix of the inner heat-sealing layer is metallocene polyethylene, which is filled with calcium carbonate, and the particle size of calcium carbonate is 0.1-0.3 μm; the addition amount of metallocene polyethylene resin in the inner heat-sealing layer is 100 parts, the addition amount of calcium carbonate is 10 parts; First the metallocene polyethylene resin of 5 parts of calcium carbonate and 33 parts is blended, melted, granulated, and then the metallocene poly...

Embodiment 2

[0036] An easy-to-tear packaging composite film, comprising an outer protective layer, a middle barrier layer and an inner heat-sealing layer, the thickness of the outer protective layer is 12 μm, and the outer protective layer is PET; the thickness of the middle barrier layer is 7 μm, and the middle barrier layer It is VMPET; the thickness of the inner heat-sealing layer is 30 μm; the outer protective layer, the middle barrier layer and the inner heat-sealing layer are compounded by dry compounding process.

[0037] The matrix of the inner heat-sealing layer is metallocene polyethylene, polybutene-1 and calcium carbonate are added to the metallocene polyethylene, the addition amount of metallocene polyethylene is 100 parts, and the addition amount of polybutene-1 is 110 parts , the added amount of calcium carbonate is 5 parts, and the added amount of slip agent is 1.5 parts; the inner heat-sealing layer is prepared by casting or blown film technology.

[0038] The extruded st...

Embodiment 3

[0040] An easy-to-tear packaging composite film, comprising an outer protective layer, a middle barrier layer and an inner heat-sealing layer, the thickness of the outer protective layer is 12 μm, and the outer protective layer is PET; the thickness of the middle barrier layer is 7 μm, and the middle barrier layer It is VMPET, and the thickness of the inner heat-sealing layer is 30 μm; the outer protective layer, middle barrier layer and inner heat-sealing layer are compounded by dry compounding process.

[0041] The matrix of the inner heat-sealing layer is a linear low-density polyethylene matrix, and polybutene-1 and polypropylene are added to the linear low-density polyethylene matrix. The amount of linear low-density polyethylene added is 100 parts, and the addition of polybutene-1 The amount is 50 parts, the addition amount of polypropylene is 60 parts, the addition amount of blocking agent is 1 part, and the addition amount of smooth agent is 1.5 parts. The inner heat-s...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses an easy-to-tear packaging composite film. The easy-to-tear packaging composite film comprises an outer protective layer, a middle barrier layer and an inner heat sealing layer,the thickness of the outer protective layer is 12-30 [mu]m, the thickness of the middle barrier layer is 7-30 [mu]m, and the thickness of the inner heat sealing layer is 30-100 [mu]m; and the outer protective layer, the middle barrier layer and the inner heat sealing layer are compounded by adopting a dry compounding process or an extrusion compounding process. An extrusion-type strip-shaped liquid packaging bag prepared from the easy-to-tear composite film has extrusion weak points, so that contents are convenient to extrude.

Description

technical field [0001] The invention relates to the technical field of plastic packaging, in particular to an easy-tear packaging composite film and a squeeze-open liquid packaging bag. Background technique [0002] Traditional liquid packaging is mostly in hard bottles, but due to the continuous development of the packaging industry in recent years, more convenient liquid strip-shaped flexible packaging has begun to appear in people's vision. Most of the liquid strip packaging is opened with a tear opening or an easy-to-tear line. When tearing, the bag mouth may be damaged and the liquid may overflow, which is limited in high-end packaging applications; the existing liquid strip packaging bags also have It has the following defects: the tear opening is large, and the liquid in the bag is easy to leak, which is inconvenient to use; the original bag type is not suitable for the processing of automatic equipment, and the production efficiency is low; the recognition of the ext...

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 Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/34B32B27/36B65D30/08
CPCB32B27/08B32B27/32B32B27/34B32B27/36B65D31/04
Inventor 齐家鹏李全布王清黄湘晖黄文娟陈健赵刚
Owner JIANGYIN BAOBO PACKING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap