Food contact resealing label material, food contact resealing label, preparation method of materials and application of materials

A food contact and labeling material technology, applied in the direction of seal, adhesive type, film/sheet adhesive, etc., can solve the problems of food aroma, nutrient loss, food waste, throwing away, etc.

Active Publication Date: 2018-02-16
GUANGZHOU JINWANZHENG PRINTING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the Food and Agriculture Organization of the United Nations (FAO), as much as 1.3 billion tons of food is wasted globally every year, partly because fresh food is not eaten in time during transportation, storage, shelf display, and after unpacking by consumers. In addition, even if it is still edible, a large amount of food is thrown away as garbage due to the shortening of the shelf life of the food due to the lack of packaging; there is also the fact that the food packaging has no barrier performance, which causes oxygen and moisture intrusion to make food aroma, Nutrient loss or even deterioration

Method used

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  • Food contact resealing label material, food contact resealing label, preparation method of materials and application of materials
  • Food contact resealing label material, food contact resealing label, preparation method of materials and application of materials
  • Food contact resealing label material, food contact resealing label, preparation method of materials and application of materials

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Experimental program
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Effect test

preparation example Construction

[0065] A preparation method for food contact resealing label material, comprising

[0066] Preparation of acrylic pressure-sensitive adhesive step;

[0067] Infrared radiation drying step: transfer the above-mentioned silicone oil backing paper / film after coating the adhesive to the far-infrared radiation area, use far-infrared radiation to penetrate the acrylic two-liquid cross-linked pressure-sensitive adhesive, and then enter the drying tunnel , the drying tunnel is provided with a baking area with gradually increasing temperature, and hot air drying is carried out through the baking area;

[0068] The step of compounding the adhesive with the film base material: the above-mentioned acrylic two-liquid cross-linked pressure-sensitive adhesive that has been dried and cured by far-infrared radiation is transferred to a film with an oxygen permeability lower than 2.0×10 -5 m 3 / m 2 ·d·Pa, moisture permeability lower than 2.0×10 -4 kg(s·m 2 ) on the film substrate.

[0069...

Embodiment 1

[0099] A food contact resealable label material comprising:

[0100] The oxygen permeability rate is 1.15×10 -5 m 3 / m 2 ·d·Pa, moisture permeability is 1.44×10 -4 kg(s·m 2 ) film base material, the film base material is a polyethylene film of vapor-deposited aluminum;

[0101] an acrylic pressure sensitive adhesive disposed on the lower surface of the film substrate, the acrylic pressure sensitive adhesive being a food contact resealing solvent comprising an acrylic monomer as one liquid and an isocyanate crosslinking agent as two liquids Type acrylic acid two-liquid crosslinking pressure-sensitive adhesive, in parts by weight is respectively:

[0102] Acrylic acid 10 parts;

[0103] Butyl acrylate 15 parts

[0104] 5 parts methyl acrylate

[0105] 1 part of cyclohexyl isocyanate;

[0106]0.5 parts of azobisisobutyronitrile;

[0107] 70 parts of acetone;

[0108] a silicone liner / film disposed on the lower surface of the acrylic pressure sensitive adhesive;

[010...

Embodiment 2

[0115] A food contact resealable label material comprising:

[0116] The oxygen permeability rate is 1.10×10 -5 m 3 / m 2 ·d·Pa, moisture permeability is 1.46×10 -4 kg(s·m 2 ), the film substrate is a polyester film coated with PVDC;

[0117] an acrylic pressure sensitive adhesive disposed on the lower surface of the film substrate, the acrylic pressure sensitive adhesive being a food contact resealing solvent comprising an acrylic monomer as one liquid and an isocyanate crosslinking agent as two liquids Type acrylic acid two-liquid crosslinking pressure-sensitive adhesive, in parts by weight is respectively:

[0118] 3 parts acrylic

[0119] 17 parts of isooctyl acrylate

[0120] Propyl acrylate 5 parts

[0121] 10 parts of methyl acrylate;

[0122] Butylene oxide 1 part

[0123] 0.5 parts of diphenylmethane-4,4'-diisocyanate;

[0124] 0.4 parts of azobisisoheptanonitrile;

[0125] 65 parts of isopropanol;

[0126] a silicone liner / film disposed on the lower surfa...

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Abstract

The invention discloses a food contact resealing label material which comprises a thin film matrix, an acrylic acid pressure-sensitive binding agent and a silicon oil base paper/film. The oxygen permeability of the thin film matrix is lower than 2.0*10<-5>m<3>/m<2>*d*Pa, and the moisture penetrability of the thin film matrix is lower than 2.0*10<-4>kg (s*m<2>); the acrylic acid pressure-sensitivebinding agent is arranged on the lower surface of the thin film matrix, and the residue of the solvent is 5mg/m<2>-RL values; the total transfer volume of acrylic acid is 6mg/kg-RL values; the siliconoil base paper/film is arranged on the lower surface of the acrylic acid pressure-sensitive binding agent. The invention further discloses a preparation method of the food contact resealing label material, a food contact resealing label prepared from the food contact resealing label material and an application of the food contact material to food package. The oxygen permeability, the moisture permeability, the solvent residue, the total transfer volume of acrylic acid and isocyanate residue of the food contact resealing label material can meet the demand of food contact and food contact package.

Description

technical field [0001] The invention relates to the field of label materials and label technology, in particular to a food contact resealing label material, a food contact resealing label, a preparation method and an application thereof. Background technique [0002] Pressure-sensitive adhesive labels, as the body of information, can be seen everywhere in daily life. Its basic function is to carry the information of the posted product and its manufacturer, embellish and beautify the posted product. With the development of material science, commodities and their packaging forms are becoming more and more diverse, and the higher functional requirements of labels as information bodies are also becoming more and more diverse. Therefore, the development and application of functional labels are also diversified, and many functional labels have appeared, such as high temperature resistant labels, frozen labels, printable labels, organic solvent-resistant wipe labels, flow process l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J7/24C09J7/25C09J133/08C08F220/18C08F220/06C08F220/14G09F3/02
CPCC09J133/08G09F3/02G09F2003/0272G09F2003/0273C08F220/1808C08F220/1804C08F220/1802C08F220/06C08F220/1803C08F220/14C08F220/10C09J4/06C09J7/385C09J7/24C09J2203/334C09J2423/006C09J2423/046C09J2427/006C09J2429/006C09J2433/00C09J2467/006C09J2301/312C08F265/06C08F220/58
Inventor 李书锋李书芒周秋妹
Owner GUANGZHOU JINWANZHENG PRINTING MATERIAL CO LTD
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