摘要:
CARBOXYL STARCH AMINE ETHERS HAVING AN ANIONIC SUBSTITUENT-TO-AMINE-ETHER SUBSTITUENT MOLAR RATIO OF AT LEAST 1:1 AND PAPER COATING COLORS CONTAINING THE CARBOXYL STARCH AMINE ETHERS AS HIGH-STRENGTH BINDERS, ESPECIALLY FOR LOW WEIGHT PUBLICATION-GRADE PAPER.
摘要:
MAT, WET-RUB RESISTANT PIGMENT-COATED PAPER IS MANUFACTURED BY COATING A PAPER SURFACE WITH AN AQUEOUS ALKALINE COATING COLOR HAVING A PH OF AT LEAST 8 AND CONTAINING: (A) A PIGMENT CONSISTING ESSENTIALLY OF 3-25% SATIN WHITE, 55-97% CALCIUM CARBONATE AND 0-40% CLAY, BASED ON THE WEIGHT OF THE PIGMENT, AND (B) AN AT LEAST 0.2% BY WEIGHT OF PHOSPHORUS CONTAINING, DEPOLYMERIZED STARCH PHOSPHATE ESTER IN AN AMOUNT EFFECTIVE AS A BINDER FOR THE PIGMENT.
摘要:
In order to opacify one side of a multi-ply paperboard comprised of a plurality of paper plies, pigment particles are spread between a pair of the plies. Pigment particles are preferably clay particles and are preferably spread immediately beneath the outermost ply at the one side of the board at a distribution of between 5 grams per square meter and 60 grams per square meter.
摘要:
A WATER-INSOLUBILIZED COATED PAPER PREPARED BY APPLYING A COATING COLOR HAVING PH OVER 8.0 TO A PAPER, THE COATING COLOR BEING PREPARED BY SUBJECTING AN AQUEOUS STARCH SOLUTION TO COOKING TREATMENT TOGETHER WITH AMINE MODIFIED UREA FORMALDEHYDE RESIN IN THE PRESENCE OF ACID CATALYST AND MIXING THE WATER INSOLUBILIZED STARCH SOLUTIONS THUS OBTAINED WITH PIGMENT CONTAINING AT LEAST A PART OF ALKALINE PIGMENT.
摘要:
PAPER IS RENDERED WET-RUB RESISTANT BY BEING PROVIDED WITH A COATING CONTAINING (A) A PIGMENT CONSISTING ESSENTIALLY OF CLAY AND ABOUT 3-100% OF SATIN WHITE, AND (B) A BINDER CONSISTING AT LEAST PARTIALLY OF A DEPOLYMERIZED STARCH PHOSPHATE ESTER.