Water-resistant abrasive base paper and production method thereof
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A production method and technology of sandpaper, applied in the direction of paper, papermaking, paper coating, etc., can solve the problems of poor sand sticking, low paper sheet toughness, affecting grinding performance, etc. good performance
Active Publication Date: 2016-02-03
SHANDONG LUNAN NEW MATERIALS
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A large part of the base paper used in medium and high-grade water-resistant sandpaper is imported. Since the base paper of water-resistant sandpaper is a special industrial paper, the market is relatively narrow and the consumption is not large. The domestic market is less than 20,000 tons per year. With the acceleration of my country's industrialization process, nearly There has been a large growth in the past few years, but due to the special requirements of water-resistant sandpaper base paper, the country has almost no base paper research and development and technical support. In the planned economy, several state-owned base paper manufacturers were completely disintegrated, closed or converted, so there are very few base paper manufacturers. , but high-grade water-resistant sandpaper base paper, due to the gap between the process equipment and foreign countries, cannot meet the requirements of coated abrasive manufacturers at present. It is necessary to accelerate innovation and improve R&D capabili
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Embodiment 1
[0029] After preparing the materials, calculate according to the weight ratio: add 35 parts of softwood pulp fiber, 35 parts of hardwood pulp fiber, 5 parts of polyester fiber (1.67D, 6mm), control the online concentration at 0.3%, the beating degree: 30, and the amount is 82.5 g / m 2 .
[0030] Adopt Fourdrinier paper machine, one time coating (thermoplastic resin, 10kg) 16.5g / m 2 . Glue formulation: acrylic latex (SJ-2): acrylic latex (SJ-5) = 3:1, sizing amount is 10%;
[0031] After the glue is dried in an oven, use Fourdrinier paper machine to second glue 11g / m 2 , The sizing amount is 6%. Gluing liquid formula: LN-F1 type oil repellent: modified AKD neutral glue: modified dispersed rosin glue = 3:2:1.
[0032] Calender with a soft calender; roll paper rewind packaging.
[0036] After preparing the materials, calculate according to the weight ratio: add 35 parts of softwood pulp fiber, 32 parts of hardwood pulp fiber, 10 parts of polyester fiber (1.67D, 6mm), control the online concentration at 0.3%, and the quantitative 92g / m 2 .
[0037] One time coating inside the machine (modified thermoplastic resin) 14g / m 2 . Glue formulation: acrylic latex (SJ-2): acrylic latex (SJ-5) = 3:1;
[0038] 14g / m for the second glue coating inside the machine 2 . Gluing liquid formula: LN-F1 type oil repellent: modified AKD neutral glue: modified dispersed rosin glue = 3:2:1.
[0041] Finally, the high-grade water-resistant sandpaper made of water-resistant sandpaper base paper has good water resistance, flexibility, solvent resistance (resistance to adhesives in sandpaper production), dime...
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Abstract
The invention discloses water-resistant abrasive base paper and a production method thereof. The water-resistant abrasive base paper is prepared from the following raw materials in parts by weight: 32-35 parts of softwood pulp fibers, 32-35 parts of hardwood pulp fibers, 5-10 parts of polyester fibers, 10-15 parts of modified thermoplastic resin, 3-5 parts of a water-proofing agent and 3-5 parts of an oil-proofing agent. The preparation method comprises the following steps: (1) mixing, crushing, pulping and repulping the softwood pulp fibers, the hardwood pulp fibers and the polyester fibers in parts by weight; (2) starching by a fourdrinier machine; (3) molding and drying a paper sheet on the fourdrinier machine, and carrying out gumming treatment once online, wherein the glue quantity is 10%-15%; (4) after drying the glue obtained in the step (3), carrying out secondary gumming on the front surface of the paper sheet, wherein the glue quantity is 6%-10%; and (5) calendaring the paper sheet which is gummed for the second time in the step (4) by a soft calendar. The Water-resistant abrasive paper prepared from the water-resistant abrasive base paper has the advantages of good waterproofness, softness, solvent resistance, dimension stability, high dry strength, good high temperature resistance and good weathering resistance.
Description
Technical field [0001] The invention belongs to the technical field of sandpaper base paper, and specifically relates to a water-resistant sandpaper base paper and a production method thereof. Background technique [0002] Water-resistant sandpaper base paper is the base for the production of water-resistant sandpaper, and the coated abrasives made from it occupies a large proportion of the entire coated abrasive products. A large part of the base paper used for medium and high-grade water-resistant sandpaper depends on imports. Since the base paper of water-resistant sandpaper is a special industrial paper, the market is relatively small and the consumption is not large. The domestic market is less than 20,000 tons per year. With the acceleration of China’s industrialization process, In the past few years, there has been a large growth, but due to the special requirements of water-resistant sandpaper base paper, the state has almost no support for base paper research and develop...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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