Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Compound heat insulating and fresh keeping protection film

A protective film and composite technology, applied in the direction of synthetic resin layered products, flexible slender elements, flexible coverings, etc., can solve the problem that microporous fresh-keeping film cannot achieve tensile resistance, complicated preparation process, and good insurance effect and other problems, to achieve the effect of improving the fresh-keeping effect, good softness, and suitable hole spacing

Inactive Publication Date: 2016-03-23
罗瑞尔纳米合成材料(江苏)有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many types of preservative films commonly used now, including commonly used polyethylene or polyvinyl chloride preservative films, various preservative films modified by formula on the basis of polyethylene, and composite preservative films modified by the structure of preservative films, such as Composite cling film is composed of reinforcing material layer, polymer material layer and active separation material layer stacked at one time. Although this composite cling film has a better fresh-keeping effect than traditional cling film, the cost of the materials used is higher
[0003] There is also a kind of microporous fresh-keeping film, which produces a large number of tiny pores on the film. Now the mature preparation technology of microporous film includes inorganic filler polymer stretching technology, semi-crystalline polymer stretching technology, chemical foaming technology, phase Separation technology, etc., each technology has its own characteristics and is suitable for different applications, but now it is commonly used as microporous technology or the raw material preparation process is complicated and the cost is high, or the prepared microporous plastic wrap cannot achieve high tensile strength and safety. good effect requirements
[0004] As we all know, for fruits, seafood, meat, vegetables, candy, wine and other foods that need to be transported by cold rubbing, it is often necessary to be equipped with cold chain transportation equipment during transportation. This transportation method is costly, especially for some short-distance transportation

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
  • Compound heat insulating and fresh keeping protection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] refer to figure 1 As shown, this embodiment discloses a composite heat-insulating and fresh-keeping protective film, which sequentially includes: a first reflective barrier layer 1, a first woven cloth layer 2, an EPE composite layer 3, a second woven cloth layer 4, a second woven cloth layer Two reflective barrier layers 5, the first reflective barrier layer 1 and the second reflective barrier layer 5 are high-reflectivity aluminum foils, and their thicknesses are equal. In this embodiment, the thickness of the selected aluminum foil is 7 μm, and the aluminum foil is used as the reflective barrier layer, which has a very good high reflectivity, which can improve the heat insulation effect of the plastic wrap.

[0024] Moreover, the first reflective barrier layer 1 , the first woven fabric layer 2 , the EPE composite layer 3 , the second woven fabric layer 4 , and the second reflective barrier layer 5 are all bonded by the PE layer 6 .

[0025] The above-mentioned EPE ...

Embodiment 2

[0029] The structure of the protective film in Example 2 is consistent with that of Example 1, which includes in turn: the first reflective barrier layer 1, the first woven cloth layer 2, the EPE composite layer 3, the second woven cloth layer 4, the second reflective barrier layer Layer 5, the first reflective barrier layer 1 and the second reflective barrier layer 5 are high-reflectivity aluminum foils, and their thicknesses are equal. In this embodiment, the thickness of the aluminum foil is selected to be 20 μm.

[0030] Moreover, the first reflective barrier layer 1 , the first woven fabric layer 2 , the EPE composite layer 3 , the second woven fabric layer 4 , and the second reflective barrier layer 5 are all bonded by the PE layer 6 .

[0031] The above-mentioned EPE composite layer 3 includes 5 layers of EPE layers, the thickness of the above-mentioned EPE composite layer is no more than 2cm, preferably 0.5-2cm, in this embodiment, the above-mentioned EPE layers are fix...

Embodiment 3

[0035] The structure of the protective film in Example 3 is consistent with that of Example 1, which includes in turn: the first reflective barrier layer 1, the first woven fabric layer 2, the EPE composite layer 3, the second woven fabric layer 4, the second reflective barrier layer Layer 5, the first reflective barrier layer 1 and the second reflective barrier layer 5 are high-reflectivity aluminized PET films, and their thicknesses are equal. In this embodiment, the thickness of the aluminized PET film is selected to be 12 μm.

[0036] Moreover, the first reflective barrier layer 1 , the first woven fabric layer 2 , the EPE composite layer 3 , the second woven fabric layer 4 , and the second reflective barrier layer 5 are all bonded by the PE layer 6 .

[0037] The above-mentioned EPE composite layer 3 includes 5 layers of EPE layers, the thickness of the above-mentioned EPE composite layer is no more than 2cm, preferably 0.5-2cm, in this embodiment, the above-mentioned EPE ...

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
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a compound heat insulating and fresh keeping protection film. The compound heat insulating and fresh keeping protection film sequentially comprises a first reflection barrier layer, a first woven cloth layer, an EPE composite layer, a second woven cloth layer and a second reflection barrier layer, the first reflection barrier layer, the first woven cloth layer, the EPE composite layer, the second woven cloth layer and the second reflection barrier layer are respectively bonded through a PE layer, the EPE layer comprises 2-10 EPE layers, the EPE layers are fixed through hot piercing to form the EPE composite layer, the spacing of holes in the EPE composite layer is 1-4cm, and the diameter of the holes in the EPE composite layer is 0.5-1cm. The protection film has good barrier and heat insulation performances, has good flexibility, is suitable for packaging trays with various forms, and can be used to package the trays in 1000km; and the protection film has good barrier and heat insulation performances, so chill cars are not needed, and the transportation cost is saved, thereby products are more economical.

Description

technical field [0001] The invention relates to the field of packaging materials, in particular to a fresh-keeping film, in particular to a composite heat-insulating and fresh-keeping protective film. Background technique [0002] Plastic wrap is a commonly used packaging material in daily life. Food, vegetables and fruits are packaged with plastic wrap to isolate the air from the food and achieve the effect of freshness preservation. There are many types of preservative films commonly used now, including commonly used polyethylene or polyvinyl chloride preservative films, various preservative films modified by formula on the basis of polyethylene, and composite preservative films modified by the structure of preservative films, such as Composite cling film is formed by stacking reinforcement material layer, polymer material layer and active separation material layer at one time. Although this composite cling film has better fresh-keeping effect than traditional cling film, ...

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): B32B15/09B32B15/14B32B15/20B32B27/04B32B27/12B32B27/32B32B27/36B32B7/10B32B3/24B32B33/00B65D65/40
CPCB32B15/09B32B3/266B32B5/02B32B7/10B32B15/14B32B15/20B32B27/08B32B27/12B32B27/32B32B27/36B32B33/00B32B2250/40B32B2262/00B32B2307/304B32B2553/00B65D65/40B65D2565/387
Inventor 靳宏洲
Owner 罗瑞尔纳米合成材料(江苏)有限公司
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
Eureka Blog
Learn More
PatSnap group products