Method of starch degradation, greaseproof composite layer, and manufacturing method thereof
A method for degrading acetylated adipic acid distarch into a starch-based oil-resistant composite layer addresses the health and environmental issues of existing greaseproof papers, providing effective and safe food packaging solutions.
TW202631697AActive Publication Date: 2026-08-01王俊超
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Patent Information
- Application Number
- TW114103233
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-08-01
- Estimated Expiration
- 2045-01-22
AI Technical Summary
Technical Problem
Existing greaseproof papers, whether fluorocarbon resin-coated or laminated with plastic films, pose health and environmental risks due to the use of harmful additives and are not heat-resistant, limiting their application and recyclability.
Method used
A method for degrading acetylated adipic acid distarch using a combination of acid, polar solvent, and alkali to form a starch suspension, followed by gelatinization and coating onto a substrate to create an oil-resistant composite layer, which is fluorine-free and environmentally friendly.
Benefits of technology
The method produces a starch-based oil-resistant composite layer with high safety and effectiveness, suitable for food packaging, offering excellent oil resistance and recyclability without harmful additives.
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Abstract
°C, and a degradation reaction is carried out to form a first degraded starch solution. The pH value of the first degraded starch solution is increased by adding alkali to obtain a second degraded starch solution. A method of manufacturing a greaseproof composite layer includes the following operations. Acetylated distarch adipate with a weight-average molecular weight of
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