Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Printable double-faced heat sealing film, preparation method and application thereof

A film and double-sided technology, applied in the field of film production and processing, can solve the problem that PE film cannot have both printability and double-sided heat sealability, and achieve good adhesion.

Inactive Publication Date: 2015-04-22
ZHEJIANG CHENGDE PACKAGING
View PDF2 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a printable double-sided heat-sealable film, its preparation method and its application, so as to solve the problem that the PE film used for single-layer packaging in the prior art cannot have both printability and double-sided heat-sealability. The problem

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
  • Printable double-faced heat sealing film, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] In addition, the present invention also provides a method for preparing a printable double-sided heat-sealing film, which includes the following steps: co-extruding and blow molding the raw materials of the outer layer, the middle layer and the inner layer. Specifically, the preparation process is as follows:

[0031] Step 1, mixing materials, respectively stirring the raw materials of the outer layer, the middle layer and the inner layer into a mixed material according to the consumption ratio of the raw materials of each layer;

[0032] Step 2, batching, batching according to the weight percentage between layers according to the compounding of each layer of the outer layer, the middle layer and the inner layer;

[0033] Step 3: Co-extrude the blown film, and use a blown film machine for blow molding to obtain the above-mentioned printable double-sided heat-sealable film.

[0034] The specific preparation process may include a mixing process, a feeding process, a plas...

Embodiment 1

[0038] (1) Ingredients:

[0039] Raw materials and weight percentages for the outer layer: 60% LLDPE-7042; 20% LDPE-2420H; and 20% MLLDPE-5100G;

[0040] Raw materials and weight percentages for the middle layer: 75% LLDPE-7042; 25% MDPE-2230;

[0041] Raw materials and weight percentages for the inner layer: 48% LLDPE-0220KJ; 24% LDPE-2426H; 24% MLLDPE-5100G; 2% anti-blocking agent EAZ-10; and 2% slip agent ESQ-4 ;

[0042] Among them, the raw materials for the outer layer, the raw materials for the middle layer and the raw materials for the inner layer account for 25%, 50% and 25% of the total mass of the raw materials respectively.

[0043] (2) Blow molding:

[0044] The above proportioned materials are processed in multi-layer co-extrusion blow molding equipment, including the following processes: mixing process, feeding process, plasticizing extrusion process, inflation traction process, air ring cooling process, herringbone splint process, traction Roller pulling pro...

Embodiment 2

[0046] (1) Ingredients:

[0047] Raw materials and weight percentages for the outer layer: 50% LLDPE-7042; 25% LDPE-2420H; and 25% SP1520;

[0048] Raw materials and weight percentages for the middle layer: 70% of 201XV; 30% of MDPE-2230;

[0049] Raw materials and weight percentages for the inner layer: 40% LLDPE-0220KJ; 30% 2426D; 27% SP1520; 2% anti-blocking agent EAZ-10; and 1% slip agent ESQ-4;

[0050] Among them, the raw materials for the outer layer, the raw materials for the middle layer and the raw materials for the inner layer account for 25%, 50% and 25% of the total mass of the raw materials respectively.

[0051] (2) Blow molding:

[0052] The above proportioned materials are processed in multi-layer co-extrusion blow molding equipment, including the following processes: mixing process, feeding process, plasticizing extrusion process, inflation traction process, air ring cooling process, herringbone splint process, traction Roller pulling process, corona treat...

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
Login to View More

Abstract

The invention provides a printable double-faced heat sealing film, a preparation method and an application thereof. The film sequentially comprises an outer layer, a middle layer and an inner layer, wherein the outer layer comprises the following raw materials in percentage by weight: 50-70% of first linear low density polyethylene, 15-25% of first low density polyethylene and 15-25% of first metallocene linear low density polyethylene; the middle layer comprises the following raw materials in percentage by weight: 70-80% of second linear low density polyethylene and 20-30% of medium density polyethylene; the inner layer comprises the following raw materials in percentage by weight: 40-60% of third linear low density polyethylene, 18-30% of second low density polyethylene and 18-30% of second metallocene linear low density polyethylene. The film has good double-faced heat sealing property. Meanwhile, after the resin materials in the layers of the thin are reasonably matched, the film further has printability.

Description

technical field [0001] The invention relates to the field of film production and processing, in particular to a printable double-sided heat-sealable film, its preparation method and its application. Background technique [0002] Heat-sealing bags are widely used in daily chemical product packaging, food and drug packaging and other fields. Since leakage is most likely to occur at the heat-sealed part of the packaging bag when the product is filled, and the damage of the packaging bag also occurs in the heat-sealed part during actual use, therefore, choosing the appropriate heat-sealing film and heat-sealing parameters can reduce the scrap rate of the production line, And can effectively improve the overall barrier performance of the package. [0003] Currently commonly used heat-sealing films are polyethylene (PE) films or polypropylene (PP) films. The PP film used as a heat-sealing film is mainly a copolymerized polypropylene film formed by copolymerization of propylene a...

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): B32B27/32C08L23/08C08L23/06B65D65/40B29C55/28B29L9/00
Inventor 王道德
Owner ZHEJIANG CHENGDE PACKAGING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com