US2004021244A1PendingUtilityA1

Method for manufacturing a container that may be dissolved naturally

Priority: Aug 2, 2002Filed: Aug 2, 2002Published: Feb 5, 2004
Est. expiryAug 2, 2022(expired)· nominal 20-yr term from priority
Inventors:Yun Liu
D04H 1/04D04H 1/587D04H 1/60
44
PatentIndex Score
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Cited by
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Claims

Abstract

A method for manufacturing a container that may be dissolved naturally is essentially used to make a natural biological fiber into a biological dissolvable container. The method especially includes adding a gum material to make the container, so that the container may be made of a harmless material (the foodstuff's formula). Thus, the container product has a lower cost of fabrication. In addition, the container product may be dissolved naturally, is heat resistant, is waterproof, does not have poison, and may be dissolved into an organic fertilizer.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A method for manufacturing a container that may be dissolved naturally, comprising the steps of: 
 (a) the step of providing material: providing a natural biological fiber;    (b) the crashing and sieving step: placing the material into a crashing machine, and conveying a crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements;    (c) the bonding and mixing step: adding a determined amount of gum into the crashed material, and fully mixing the gum with the crashed material, wherein the crashed material is about 45 to 60%, and the gum is about 55 to 40%; and    (d) the mold pressurizing and forming step: finally conveying the mixed material into a die, so that the mixed material may be pressurized and formed into a container product, wherein a heating temperature is about 60 to 220° C., and the die may then be opened, so that the container product may be removed.    
     
     
         2 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 1 , wherein the natural biological fiber in the step of providing material may be various plants having long and short stems, including a straw stick, straw husk, grass, coconut husk, wheat husk, wheat stem stick, cotton stick and sorghum stick.  
     
     
         3 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 1 , wherein the natural biological fiber in the step of providing material may be natural agricultural wastes, including the corn stick dregs, sugar can dregs, and beer dregs.  
     
     
         4 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 1 , wherein the natural biological fiber in the step of providing material may be a starch material, including corn flour, potato flour, and bean flour.  
     
     
         5 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 1 , wherein the mesh size in the crashing and sieving step is about 10 to 400 meshes.  
     
     
         6 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 1 , wherein the gum in the bonding and mixing step is a PVA (polyvinyl acetate) gum.  
     
     
         7 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 1 , wherein the gum in the bonding and mixing step includes a powder material of rosin, Dammar resin, Copal resin, Gelatin, and Shellac.  
     
     
         8 . A method for manufacturing a container that may be dissolved naturally, comprising the steps of: 
 (a) the step of providing material: providing a natural biological fiber;    (b) the crashing and sieving step: placing the material into a crashing machine, and conveying a crashed material through a net so as to sieve the crashed material with a mesh size satisfying the requirements;    (c) the bonding and mixing step: adding a determined amount of gum into the crashed material, and fully mixing the gum with the crashed material, wherein the crashed material is about 45 to 60%, and the gum is about 55 to 40%;    (d) the step of adding and mixing a foam agent: adding a determined amount of foam agent, wherein a rotation speed is about 1500 to 6000 rpm (revolutions per minute), and a mixing time is about 1 to 15 minutes; and    (e) the mold foaming and forming step: finally conveying the mixed material into a die, so that the mixed material may be heated and formed into a container product, wherein a heating temperature is about 60 to 220° C., and the die may then be opened, so that the container product may be removed.    
     
     
         9 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the natural biological fiber in the step of providing material may be various plants having long and short stems, including a straw stick, straw husk, grass, coconut husk, wheat husk, wheat stem stick, cotton stick and sorghum stick.  
     
     
         10 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the natural biological fiber in the step of providing material may be natural agricultural wastes, including the corn stick dregs, sugar can dregs, and beer dregs.  
     
     
         11 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the natural biological fiber in the step of providing material may be a starch material, including corn flour, potato flour, and bean flour.  
     
     
         12 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the mesh size in the crashing and sieving step is about 10 to 400 meshes.  
     
     
         13 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the gum in the bonding and mixing step is a PVA (polyvinyl acetate) gum.  
     
     
         14 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the gum in the bonding and mixing step includes a powder material of rosin, Dammar resin, Copal resin, Gelatin, and Shellac.  
     
     
         15 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the foam agent in the step of adding and mixing a foam agent includes  
       
         
           
           
               
               
           
         
       
     
     
         16 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the foam agent in the step of adding and mixing a foam agent includes  
       
         
           
           
               
               
           
         
       
     
     
         17 . The method for manufacturing a container that may be dissolved naturally in accordance with  claim 8 , wherein the foam agent in the step of adding and mixing a foam agent includes

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