Heat shrinkable film, method for manufacturing a heat shrinkable film, and method for determining the heat shrinkage rate of a heat shrinkable film.
JP2026090547AActive Publication Date: 2026-06-02C I TAKIRON CORP +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- C I TAKIRON CORP
- Filing Date
- 2026-03-02
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing heat-shrinkable films suffer from uneven heat distribution and large variations in heat shrinkage rates, leading to wrinkles and non-uniformity, especially when applied to non-uniform objects like PET bottles with complex shapes.
Method used
A heat-shrinkable film with a predetermined section marked along the primary shrinkage direction, where the maximum heat shrinkage rate is adjusted to 3 mm/second or more, calculated using motion capture, ensuring precise control over the heat shrinkage characteristics.
Benefits of technology
The film achieves uniform and stable heat shrinkage, effectively preventing wrinkles and ensuring accurate heat shrinkage rates, suitable for various resin types and complex object shapes.
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Smart Images
Figure 2026090547000001_ABST
Abstract
The present invention provides a heat-shrinkable film that can adjust the heat shrinkage rate within a predetermined range, thereby exhibiting stable and excellent heat shrinkage properties and effectively preventing wrinkles and other defects. [Solution] A heat-shrinkable film having the longitudinal or widthwise direction as the main shrinkage direction, made of a predetermined resin, and in a predetermined time t1 to t3, t2
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