A method for pretreatment of straw fiber raw material
By employing a pretreatment method involving high-temperature shaving, compound bio-enzymatic hydrolysis, and graded grinding, the problems of chemical pollution and fiber damage in straw fiber pulping have been solved. This method enables the preparation of straw fiber pulp with low energy consumption, high performance, and food safety, and is suitable for food contact grade biomass molding products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2026-04-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing straw fiber pulping processes suffer from significant chemical pollution, severe fiber damage, high food safety risks, high energy consumption, and high costs, making it difficult to balance environmental friendliness, low energy consumption, and high performance.
By employing raw material pretreatment, fiber spinning, enzymatic hydrolysis, grading and grinding, and purification screening, high-temperature fiber spinning, compound enzymatic hydrolysis, and grading and grinding, combined with closed-loop water circulation, efficient fiber separation and purification are achieved to prepare food-grade straw fiber pulp with no chemical residues.
This process produces straw fiber pulp with no chemical residues, strong fiber bonding, and excellent molding performance, reducing production energy consumption and costs, meeting food contact safety standards, and improving fiber yield, burst strength, and smoothness of the finished product.
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Figure CN122406569A_ABST