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US 6,306,324 B1Granted
Method for manufacturing packaging material and sheets from plant straws
OwnerChangrong Wanginventor
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Abstract
A method for manufacturing packaging material and sheets, such as disposable food containers or seedling-breeding containers from straws, comprising pulverizing into powder, with 20-50 mesh; stirring the powder of straw, a binder, a lubricant and water in weight parts of 70-88, 0.3-1.0, 0.05-1 and 10-20 respectively, at ambient temperature for 5-15 minutes under 50-80 rpm to obtain a mixture, and thermal molding the mixture at a temperature of 100-150° C., and under a pressure of 20-250 MPa.
Claims10
A method of manufacturing packaging material and sheets, comprising the steps of:
- a. cutting plant straw into segments, drying said segments to a moisture content of less than 2% by weight, and then pulverizing said segments into a powder with 20-50 mesh;
- b. mixing said powder with a binder, a lubricant and water in weight parts of 70-88, 0.3-1.0, 0.05-1 and 10-20 respectively, at ambient temperature to obtain a mixture;
- and
- c. molding the mixture to form an article.
1 more element
Dependencies are inferred from the claim text.