JP2016507673A5 - - Google Patents

Description

The water-soluble polymer is a starch-based, cellulose, vegetable gelatin , animal gelatin- based natural water-soluble polymer derived from natural animals or plants , or a chemically modified natural water-soluble polymer. One or more molecular polymers. The chemically modified natural water-soluble polymer has mainly modified starch and modified cellulose, and includes carboxymethyl starch, starch acetate, hydroxymethyl cellulose, and carboxymethyl cellulose.

Claims (9)

In the pulping stage of existing paper production, waste paper pulp obtained using waste waste paper as raw material and vegetable fiber raw material for paper making are mixed, and vegetable fiber pulp material obtained by cooking is mixed to make paper pulp raw material, Washing, screening, bleaching, hydration and pulp crushing together, adding a waterproofing additive after the beating process in the papermaking stage, mixing, sending the resulting stock to a paper machine to make paper, the waterproofing additive, Of oils, starches, pectin, soda pulp, sulfite pulp, sulfate pulp, polyacrylonitrile, marble powder, sodium hydroxide, water-soluble polymer, other than the starch, pectin and polyacrylonitrile , among resins the starch, pectin, and characterized in that the non-polyacrylonitrile and a water-soluble high polymer, producing side waterproof recycled paper . The addition of a waterproofing additive after the beating process in the paper making stage means that, in the paper making stage, after completion of the beating process, the paper pulp is added with the following weight percent additive, that is, 1% to 2% of fats and oils. %, Starch 1% -2%, pectin 1.5% -2%, soda pulp 1.5% -2%, sulfite pulp 1.5% -2%, sulfate pulp 1% -2%, polyacrylonitrile 1% to 2%, marble powder 1% to 2%, sodium hydroxide 2.5% to 3.5%, 1% to 2% of the water-soluble polymer other than the starch, pectin and polyacrylonitrile 2. The waterproof recycled paper according to claim 1, wherein 2% to 2.5% of the resin other than the starch, pectin, polyacrylonitrile and water-soluble polymer is added. Manufacturing method. The fats and oils are plant-based natural fats and oils, the resin is a natural resin, and the water-soluble polymer is extracted from a natural animal or plant as a raw material . The method for producing waterproof recycled paper according to claim 1 or 2, which is one or more of a gelatin- based natural water-soluble polymer or a chemically modified natural water-soluble polymer. 2. The waterproof recycled paper according to claim 1, wherein the mixing weight ratio of the waste paper pulp and the vegetable fiber pulp material is 35% to 45% waste paper pulp and 55% to 65% vegetable fiber pulp. Production method. About the vegetable fiber pulp material obtained by cooking using the plant fiber raw material for papermaking as a raw material, the ratio of the absolutely dry material piece to well water, river water or tap water is 1: 3 when cooking. The method for producing waterproof recycled paper according to claim 1. About the hydration and pulp pulverization, the mixed pulp material after washing, bleaching and washing screen is introduced into a pulp pulverization system and pulverized for 30 to 240 minutes, and after beating at a beating degree of 45 ° SR to 48 ° SR The method for producing waterproof recycled paper according to claim 1, wherein pulp is obtained. The method for producing waterproof recycled paper according to claim 1, wherein the paper pulp concentration of the top wire in paper making by the paper machine is 0.1 to 1.2%. The waterproof waterproof paper according to any one of claims 1 to 7, wherein the waterproof recycled paper is applied in the direction of processing and production of a packaging material, a printing material, a decorative material, and a protective material having waterproof performance. A method for producing recycled paper. 9. The waterproof recycled paper is recovered after use and subjected to impurity removal treatment, directly used as a fiber raw material, and applied to the preparation process to regenerate and prepare the waterproof recycled paper. 2. A method for producing waterproof recycled paper according to claim 1.