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

PVDC laminated composite high-temp-resistant steamed and boiled food packaging film and its preparation method

A technology for food packaging film and high temperature resistance, which is applied in the preparation of the PVDC laminated composite high temperature resistant cooking food packaging film, PVDC laminated composite high temperature resistant cooking food packaging film field, which can solve the problem of high product cost, insufficient softness, invisible To achieve the effect of good food hygiene performance, stable chemical performance, and beautiful appearance

Inactive Publication Date: 2004-10-13
郑州宝蓝包装技术有限公司
View PDF1 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, in the field of domestic flexible packaging, only laminated composite films with aluminum foil as the middle layer can meet this requirement. Its structure is biaxially oriented polyester film / adhesive / lead foil / adhesive / cast polypropylene film, The aluminum foil composite film has a beautiful appearance, high barrier rate, and can withstand high-temperature cooking above 121°C, but has the following disadvantages: first, the aluminum foil is easily broken and cracked by wrinkles, and the barrier property is lost; second, it is opaque, and consumers cannot see the inside. The packaging is inconvenient for customers to buy; the third is that the softness is not enough, and it cannot be tightly attached to the packaged items, and there is a lot of residual air in the bag, which is not conducive to freshness; the fourth is that microwave heating cannot be used; fifth, the cost is relatively high
The above-mentioned composite film is produced by multi-layer co-extrusion compound method. Due to the large number of layers, the multi-layer co-extrusion compound equipment is complicated, the investment is large, the product cost is high, and it is not easy to popularize and apply.

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
  • PVDC laminated composite high-temp-resistant steamed and boiled food packaging film and its preparation method
  • PVDC laminated composite high-temp-resistant steamed and boiled food packaging film and its preparation method
  • PVDC laminated composite high-temp-resistant steamed and boiled food packaging film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Such as figure 1 As shown, the middle layer PVDC (copolymer film of vinylidene chloride and vinyl chloride) 3' is connected to the outer layer 1' and the inner layer 4' through two-component polyurethane solvent-free adhesive 2' respectively, wherein the outer layer 1' is PET (polyester film), and the inner layer 4' is CPP (cast polypropylene film). Outer layer 1 ' also can be BOPP (biaxially oriented polypropylene film) or BOPA (biaxially oriented nylon film) simultaneously.

[0047] The cross-sectional structure of the composite membrane in this embodiment is: PET / adh / PVDC / adh / CPP, where: adh represents a two-component polyurethane solvent-free adhesive. The total thickness of the composite film is: 86μm

[0048] The thickness of each layer is: PET is biaxially stretched polyester film, the thickness is: 12μm;

[0049] adh is a two-component polyurethane solvent-free adhesive layer with a thickness of 2 μm;

[0050] PVDC is a biaxially stre...

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
barrier rateaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a PVDC laminated composite high-temp.-resistant cooked food packaging film and its preparation method. Its intermediate layer PVDC (chlorovinylidene and vinyl chloride copolymer) is respectively connected with two layers of two sides by means of binder, the described binder is a double-component polyurethane type solvent-free binder. The product can be produced by adopting said double-component polyurethane type solvent-free binder combination process and utilizing solvent-free combining machine. Said invented packaging film can meet the requirements for cooking above 121 deg.C.

Description

technical field [0001] The invention relates to a food packaging film, in particular to a PVDC laminated composite high temperature resistant cooking food packaging film, and also relates to a method for preparing the PVDC laminated composite high temperature resistant cooking food packaging film. Background technique [0002] Meat food is an important way for humans to absorb protein, fat, and minerals, accounting for more than 30% of human food consumption expenditures. Therefore, the meat food industry occupies an important position in the food industry. The meat food industry includes slaughtering, refrigeration, various In the processing of meat products, except for a few varieties and some places where people eat raw meat, most meat processing techniques can be divided into pasteurization under normal pressure (80-85°C) and high-temperature sterilization under high pressure (above 121°C). The purpose of pasteurization under normal pressure is to kill the enzymes and vi...

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): B32B27/08
Inventor 樊书德
Owner 郑州宝蓝包装技术有限公司
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