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Easy-to-peel hot melt adhesive, easy-to-uncover packaging ring label and application of easy-to-uncover packaging ring label

An easy-to-peel, hot-melt adhesive technology, used in adhesives, film/sheet adhesives, rosin adhesives, etc. problem, to achieve the effect of reducing peel strength

Active Publication Date: 2017-06-13
JIANGYIN BAOBO PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The weather resistance of the above-mentioned hot melt adhesives is poor, and the temperature drop has a significant impact on its stickiness performance, and the multi-cup yogurt needs to be stored in a low temperature environment for a long time, so it is not suitable for the packaging of the multi-cup yogurt

Method used

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  • Easy-to-peel hot melt adhesive, easy-to-uncover packaging ring label and application of easy-to-uncover packaging ring label
  • Easy-to-peel hot melt adhesive, easy-to-uncover packaging ring label and application of easy-to-uncover packaging ring label
  • Easy-to-peel hot melt adhesive, easy-to-uncover packaging ring label and application of easy-to-uncover packaging ring label

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The easy-peelable hot-melt adhesive composition of embodiment 1-3 sees the following table:

[0027] The easy-peelable hot-melt adhesive component wax in embodiment 1-3 is all mixed by polyethylene wax and pentaerythritol stearate, and the weight ratio of polyethylene wax and pentaerythritol stearate is respectively 70:8,14: 3 and 7:1.

[0028]

[0029]

Embodiment 4

[0031] The difference between embodiment 4 and embodiment 3 is: the sum of the contents of polyethylene wax and pentaerythritol stearate in the hot melt adhesive wax of embodiment 4 is 95%, and also includes 5% plastic microcrystalline wax.

[0032] Pentaerythritol stearate in embodiment 1-4 is pentaerythritol tetraisostearate, and tackifying resin is rosin resin, and the acid value of rosin resin<140mgKOH / g; The VA content of ethylene-vinyl acetate copolymer 40-50%.

Embodiment 5

[0034] Embodiment 5 is based on embodiment 3, difference is that pentaerythritol stearate is pentaerythritol monostearate respectively.

[0035] Embodiment 6-8 is based on embodiment 3, difference is that pentaerythritol stearate is pentaerythritol monostearate and pentaerythritol distearate are combined, the weight of pentaerythritol distearate in pentaerythritol stearate The percentages are 20%, 65%, 80%.

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Abstract

The invention discloses an easy-to-peel hot melt adhesive. The easy-to-peel hot melt adhesive is mainly prepared from the following components: 50 to 70 parts of an ethylene-vinyl acetate copolymer, 6 to 15 parts of tackifying resin, 7 to 14 parts of wax, 0.2 to 3 parts of an antioxygen and 0.5 to 5 parts of a toughening agent; the wax comprises polyethylene wax and pentaerythritol tetrastearate; the sum of the content of the polyethylene wax and the pentaerythritol tetrastearate in the wax is not less than 95 percent; the weight ratio of the polyethylene wax to the pentaerythritol tetrastearate is 7 to (0.8 to 1.5). According to the easy-to-peel hot melt adhesive, the pentaerythritol tetrastearate is added and the peeling strength of the hot melt adhesive is reduced; the components are added and influences on initial adhesion and lasting adhesion performances of the hot melt adhesive are relatively small; the easy-to-peel hot melt adhesive can be used for sticking an easy-to-uncover ring label. The invention further discloses an easy-to-uncover packaging ring label containing the easy-to-peel hot melt adhesive coating and application of the easy-to-uncover packaging ring label.

Description

technical field [0001] The invention relates to the technical field of food packaging, in particular to an easy-peelable hot melt adhesive, an easy-to-peel packaging ring label and applications thereof. Background technique [0002] At present, the ring label structure of food packaging is divided into varnish layer, ink layer, paper layer and hot melt adhesive layer from outside to inside. Taking the ring label of multi-cup yogurt as an example, it is different from the PS (polystyrene) cup after heat sealing. Paper tears easily and cannot be peeled cleanly. In order to achieve the technical effect of completely separating the ring label from the surface of the box body, an improved technical solution such as a water-release paper label disclosed in CN 103921477 A and its preparation process, the specific solution is to coat the surface of the paper with water-soluble The glue solution, the water-soluble glue solution is one or more selected from starch, modified starch, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J193/04C09J11/08C09J11/06C09J7/04
CPCC08K2201/014C08L2205/035C09J7/21C09J7/30C09J11/06C09J11/08C09J123/0853C09J2203/334C09J2301/122C09J2301/30C09J2301/304C09J2301/408C08L23/06C08L93/04C08K5/103C08L91/06C08L67/04
Inventor 李全布黄湘晖许定佳陆锦霞孙永庆
Owner JIANGYIN BAOBO PACKING
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