A coating composition for forming a paper coat includes nano-fibrillated cellulose, pigment, latex, an auxiliary additive, and water. On a dry weight basis, the nano-fibrillated cellulose is in an amount by weight of 0.02 parts to 10 parts in the total composition, the pigment is in an amount by wei
A coating composition for forming a paper coat includes nano-fibrillated cellulose, pigment, latex, an auxiliary additive, and water. On a dry weight basis, the nano-fibrillated cellulose is in an amount by weight of 0.02 parts to 10 parts in the total composition, the pigment is in an amount by weight of 75 parts to 95 parts in the total composition, the latex is in an amount by weight of 5 parts to 15 parts in the total composition, and the auxiliary additive is in an amount by weight of 0.35 parts to 10 parts in the total composition.
대표청구항▼
1. A coating composition for forming a paper coat, comprising: a mixture of nano-fibrillated cellulose, pigment, latex, an auxiliary additive, and water, wherein on a dry weight basis, the nano-fibrillated cellulose is in an amount by weight of 0.02 parts to 10 parts in the total composition, the pi
1. A coating composition for forming a paper coat, comprising: a mixture of nano-fibrillated cellulose, pigment, latex, an auxiliary additive, and water, wherein on a dry weight basis, the nano-fibrillated cellulose is in an amount by weight of 0.02 parts to 10 parts in the total composition, the pigment is in an amount by weight of 75 parts to 95 parts in the total composition, the latex is in an amount by weight of 5 parts to 15 parts in the total composition, and the auxiliary additive is in an amount by weight of 0.35 parts to 10 parts in the total composition, wherein the nano-fibrillated cellulose comprises nanoscale cellulose microfibrils having dimensions of 100 nm to 2000 nm in length, and 3 nm to 200 nm in diameter. 2. The coating composition as claimed in claim 1, wherein the nano-fibrillated cellulose has hydroxyl groups, carboxyl groups and aldehyde groups. 3. The coating composition as claimed in claim 1, wherein the nano-fibrillated cellulose prior to combination with the pigment has a property that if the nano-fibrillated cellulose is mixed with water to obtain an aqueous dispersion with the nano-fibrillated cellulose having a weight percentage of about 1%, the aqueous dispersion has a viscosity in a range from 50 cps to 300 cps. 4. The coating composition as claimed in claim 1, wherein the pigment is selected from the group consisting of ground calcium carbonate, precipitated calcium carbonate, kaolin, talc, and any combination thereof. 5. The coating composition as claimed in claim 1, wherein at least 65% of the pigment by weight has a particle size of less than 2 μm. 6. The coating composition as claimed in claim 1, wherein at least 95% of the pigment by weight has a particle size of less than 2 μm. 7. The coating composition as claimed in claim 1, wherein the auxiliary additive is selected from the group consisting of starch, water proofing agent, lubricant, defoamer, dispersants, rheology modifier, fluorescent whitening agent, dye, and any combination thereof. 8. The coating composition as claimed in claim 7, wherein the auxiliary additive comprises starch, water proofing agent in an amount by weight of 0.15 parts to 1 part, lubricant in an amount by weight of 0.25 parts to 1 part, and dispersants in an amount by weight of 0.05 parts to 0.5 parts, wherein the parts by weight are all relative to the weight of the total composition. 9. The coating composition as claimed in claim 1, wherein the coating composition comprises solids in an amount of 25% to 75% by weight. 10. The coating composition as claimed in claim 1, wherein the latex is selected from the group consisting of styrene butadiene latex, propyl benzene latex, methyl methacrylate styrene butadiene latex, styrene acrylic resin, acrylic emulsion, polyurethane emulsion, and any combination thereof. 11. The coating composition as claimed in claim 1, further comprising alkali, wherein the alkali is configured to make the coating composition have a pH value of 8 to 10.5. 12. The coating composition as claimed in claim 11, wherein the alkali is sodium hydroxide or potassium hydroxide. 13. A coated paper, comprising: a paper substrate and at least one coat formed on at least one of the surfaces of the paper substrate, each of the at least one coat being a monolayer or a stacked multilayer, at least one layer of the at least one coat located on the corresponding one of the at least one surface comprising a coating composition applied on the paper substrate, wherein the coating composition comprises a mixture of nano-fibrillated cellulose, pigment, latex, auxiliary additive, and water, and wherein on a dry weight basis, the nano-fibrillated cellulose is in an amount by weight of 0.02 parts to 10 parts in the total composition, the pigment is in an amount by weight of 75 parts to 95 parts in the total composition, the latex is in an amount by weight of 5 parts to 15 parts in the total composition, and the auxiliary additive is in an amount by weight of 0.35 parts to 10 parts in the total composition, and wherein the nano-fibrillated cellulose comprises nanoscale cellulose microfibrils having dimensions of 100 nm to 2000 nm in length and 3 nm to 200 nm in diameter. 14. The coated paper as claimed in claim 13, wherein the pigment is selected from the group consisting of ground calcium carbonate, precipitated calcium carbonate, kaolin, talc, and any combination thereof. 15. The coated paper as claimed in claim 13, wherein the auxiliary additive is selected from the group consisting of starch, water proofing agent, lubricant, defoamer, dispersants, rheology modifier, fluorescent whitening agent, dye, and any combination thereof. 16. The coated paper as claimed in claim 15, wherein the auxiliary additive comprises starch, water proofing agent in an amount by weight of 0.15 parts to 1 part, lubricant in an amount by weight of 0.25 parts to 1 part, defoamer in an amount by weight of 0.05 parts to 0.5 parts, dispersants in an amount by weight of 0.05 parts to 0.5 parts, and dye in an amount by weight of 0 parts to 1.5 parts. 17. The coated paper as claimed in claim 13, wherein the latex is selected from the group consisting of styrene butadiene latex, propyl benzene latex, methyl methacrylate styrene butadiene latex, styrene acrylic resin, acrylic emulsion, polyurethane emulsion, and any combination thereof.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (27)
Severeid,David E.; Jewell,Richard A.; Komen,Joseph L.; Weerawarna,S. Ananda; Su,Bing, Apparatus for making carboxylated pulp fibers.
Jewell, Richard A.; Komen, Joseph Lincoln; Su, Bing; Weerawarna, S. Ananda; Li, Yong, Method of making carboxylated cellulose fibers and products of the method.
Jaschinski, Thomas; Gunnars, Susanna; Besemer, Arie Cornelis; Bragd, Petter; Jetten, Jan Matthijs; Van Den Dool, Ronald; Van Hartingsveldt, Willem, Oxidized cellulose-containing fibrous materials and products made therefrom.
Shannon, Thomas Gerard; Goulet, Mike Thomas; Kass, Dana Stephanie, Process for incorporating poorly substantive paper modifying agents into a paper sheet via wet end addition.
Heiskanen, Isto; Harlin, Ali; Backfolk, Kaj; Laitinen, Risto, Process for the production of microfibrillated cellulose in an extruder and microfibrillated cellulose produced according to the process.
Gane, Patrick A. C.; Schoelkopf, Joachim; Gantenbein, Daniel; Schenker, Michel; Pohl, Michael; Kübler, Beat, Process for the production of nano-fibrillar cellulose suspensions.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.