Method for producing non-paper pulp natural fibers of paper pulp molded products

Abstract

A method for producing non-paper pulp natural fibers of paper pulp molded products, which is primarily produced by the following steps in sequence: a. scouring, b. bleaching, c. washing, d. dehydrating, e. pulverize, f. pulping, g. moldable pulp, h. paper pulp molding, and i. releasing, so as to obtain the paper pulp molded finished products made with non-paper pulp natural fibers. According, the present invention may use the traditional industrial waste such as palms, hemp and coconut shells as the major material for paper molded products to both decrease the cost of paper molded products and maintain the ecological environment of the earth.

1 . A method for producing non-paper pulp natural fibers of paper pulp molded products, which is primarily produced by the following steps: 
 a. Scouring, soaking and stirring the non-paper pulp natural fibers with water in a tank, wherein the ratio of the natural fibers to water is 1:10, adding 0.01%˜5% parts NaOH, 0.01%˜5% parts scouring agents, 0.01%˜5% penetrating agents and 0.01%˜5% bleaching stabilizers, relative to said natural fibers, and well stirred; said non-paper pulp natural fibers being selected from one of the group of palms, hemp, coconut shells and the mixture thereof;    b. Bleaching, 1%˜10% parts H2O2 relative to said natural fibers is added after well stirring of step a for stirring to an appropriate degree, for bleaching and being heated to about 90° C. with soaked time in 30˜90 minutes;    c. Washing, obtaining said non-paper pulp natural fibers after finishing bleaching of step b, then be soaked into the cold water with 0.01%˜5% Sodium Hydrosulfite about 30 minutes;    d. Dehydrating, taking out said non-paper pulp natural fibers after washing and swing or air-drying it;    e. Pulverizing, putting said non-paper pulp natural fibers into the pulverizer after dehydrating;    f. Pulping, putting said non-paper pulp natural fibers into the mixing pulp tank with adding the water to become a well mixed natural fibers pulp after pulverizing, wherein the ratio of the natural fibers to water is 1:10;    g. Moldable pulp, mixing cross-linking agents containing nonionic compounds and cationic compounds with said non-paper pulp natural fibers in a storage tank to become a moldable pulp after pulping, wherein said cross-linking agent is made with 0.75%˜5.4% parts Fluorochemical serice, 0.9%˜7.2% parts High polymer compound, 0.15%˜0.54% parts Aliphatic polyamine and 0.75%˜9% parts Alkyl acryl copolymers, relative to the amount of said natural fibers;    h. Paper pulp molding, spraying a releasing harmonizing agent membrane on the surface of a paper molding mold, applying appropriate moldable pulp and then being heated to about 120° C., 10˜20 minutes for drying thermosetting; and    i. Releasing, releasing products from mold by air-blowing to obtain paper pulp molded products.    
   
   
       2 . The method according to  claim 1 , wherein said releasing harmonizing agent is mixed from 9.5% parts releasing agent, 0.5% cross-linking agent and 90% dilute water.  
   
   
       3 . The method according to  claim 1 , in step f, wherein 
 A part of paper pulp is mixed with said pulverized non-paper pulp natural fibers, and 10 times amount of water is added to stirring together to form a uniform natural fibers pulp.    
   
   
       4 . The method according to  claim 1 , in step f, wherein after pulverizing said non-paper pulp natural fibers, 10 times amount of water is added and stirred to form a uniform natural fibers pulp, and thermal resistance additives containing anionic compounds is added and stirred to form a uniform thermal resistance natural fibers pulp, said thermal resistance additives containing 50%˜80% parts Inorganic Aluminum Silicate and 1.5%˜9% parts Natural wax emulsion, relative to said natural fibers.  
   
   
       5 . The method according to  claim 1 , in step l, wherein after obtaining said paper pulp molded products, a step j for coating a membrane may be added to form a protecting membrane with chemical polymer on the surface of said paper pulp molded products.  
   
   
       6 . The method according to  claim 5 , wherein said step j is to coat a layer of chemical polymer on the surface of said paper pulp molded products.  
   
   
       7 . The method according to  claim 5 , wherein said step j is to paste a layer of chemical polymer on the surface of said paper pulp molded products.  
   
   
       8 . The method according to  claim 5 , wherein said step j is to spread a layer of chemical polymer on the surface of said paper pulp molded products.