一种修正带带芯及其制备方法

By using water-based carboxylated styrene-butadiene latex and modified rosin in the correction tape cover layer, the problems of smudging, aging resistance and insufficient cutability of correction tape have been solved, achieving excellent writing performance and anti-sticking properties.

CN117567946BActive Publication Date: 2026-07-17DELI GROUP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DELI GROUP CO LTD
Filing Date
2023-11-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing correction tapes contain a large amount of titanium dioxide and calcium carbonate powder in their cover layer, which causes the writing to smudge when using low-viscosity direct liquid pens, and also has problems with insufficient anti-aging, anti-sticking, and cutting properties.

Method used

Using water-based carboxylated styrene-butadiene latex and modified rosin as the raw materials for the masking layer, and by adjusting their glass transition temperature and addition ratio, combined with triethanolamine modification treatment, a correction tape core with excellent anti-adhesion, aging resistance and cutability was prepared.

Benefits of technology

It improves the smudge resistance of correction tape, enhances its anti-aging, anti-sticking, and cutting properties, ensuring clear and smudge-free writing with excellent writing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种修正带带芯及其制备方法,带芯包括PET离型膜及依次覆盖在该PET离型膜上的遮盖层、胶粘层,遮盖层的制备原料包括水性羧基丁苯胶乳与改性松香,其中,所述水性羧基丁苯胶乳的玻璃化温度≤0℃,所述改性松香由酸值为150‑230mg KOH / g的松香经三乙醇胺改性制得。本发明在遮盖层中加入了水性羧基丁苯胶乳和改性松香,水性羧基丁苯胶乳的玻璃化温度≤0℃,改性松香由酸值为150‑230mg KOH / g的松香经三乙醇胺改性制得,书写后墨水被改性松香捕捉进遮盖层中,同时遮盖层中的水性羧基丁苯胶乳阻碍墨水往四周迁移,从而提高了修正带带芯的耐晕染性。
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