Recoverable easy-to-rinse low-density label and recovery method thereof

By surface modification of the low-density heat shrink film, a recyclable, easy-to-rinse low-density label was prepared, which solved the problem of difficult separation of the label during the recycling process, and improved the adhesion effect and stability of the ink, achieving impurity-free recycling.

CN119724022AActive Publication Date: 2025-03-28HENAN YINJINDA NEW MATERIALS CO LTD
15 Cites 1 Cited by

Patent Information

Application Number
CN202510221310.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2025-03-28
Estimated Expiration
2045-02-27

AI Technical Summary

Technical Problem

The existing heat shrink film materials for labels are difficult to separate during the recycling process, and the ink adhesion effect and stability are insufficient, which affects the quality of the recovered materials.

Method used

The low-density heat-shrinkable film is surface modified by a surface modifier to prepare a recyclable, easy-to-rinse low-density label. The surface modifier is prepared by sol-gel reaction of ethyl orthosilicate, N-(2-N-benzylaminoethyl)-3-aminopropyltrimethoxysilane and acetoxyethyltrimethoxysilane to improve the flatness of the surface of the heat-shrinkable film and the ink adhesion effect, and quickly decompose in a water-based rinse solution.

Benefits of technology

It improves the adhesion area and stability of the ink, realizes impurity-free recycling of the label during the recycling process, simplifies the separation process, and is suitable for large-scale recycling.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a recoverable easy-to-rinse low-density label and a recovery method thereof. The recoverable easy-to-rinse low-density label is prepared by performing surface modification on a low-density thermal shrinkage film through a surface modifier; the density of the low-density heat shrinkage film is less than 0.96 g / cm < 3 >; the surface modifier is prepared by carrying out a reaction on ethyl orthosilicate, N-(2-N-benzyl aminoethyl)-3-amino propyl trimethoxy silane and acetoxyethyl trimethoxy silane by virtue of a sol-gel method. The preparation method comprises the following steps: carrying out a reaction on ethyl orthosilicate, N-(2-N-benzyl aminoethyl)-3-amino propyl trimethoxy silane and acetoxyethyl trimethoxy silane by virtue of a sol-gel method; according to the label subjected to surface modification, the adhesion effect and stability of printing ink on the surface of the label can be improved, meanwhile, rapid separation can be achieved through simple flotation in the recycling process, the printing ink on the label can be effectively rinsed in rinsing liquid, the rinsing effect of the printing ink is improved, and the service life of the label is prolonged. And therefore, impurity-free recycling of the label is realized.
Need to check novelty before this filing date? Find Prior Art