Production of high bulk calendered paper containing vesiculated beads

A high bulk calendered paper comprises from 2% to about 6% of the weight of the paper of highly cross-linked, titanium dioxide-pigmented, polymeric vesiculated beads having a volume average particle size of at least about 5 microns up to about 35 microns. The calendered paper preferably has a basis...

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Hauptverfasser: BATES, FERDINAND, JR, BERKA, ROMAN
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Sprache:eng ; fre ; ger
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creator BATES, FERDINAND, JR
BERKA, ROMAN
description A high bulk calendered paper comprises from 2% to about 6% of the weight of the paper of highly cross-linked, titanium dioxide-pigmented, polymeric vesiculated beads having a volume average particle size of at least about 5 microns up to about 35 microns. The calendered paper preferably has a basis weight of from about 20 to about 40 pounds per ream, and the vesiculated beads are preferably used in an amount of from 4% to 6%. As a feature of the invention, it is found that the carboxyl-functional cross-linked beads used herein when used in aqueous suspension thickened with a neutralized polycarboxylic acid polymer thickener, enhance the retention of fines in the papermaking process when used in conjunction with anionic retention aids, especially carboxyl-functional acrylamide copolymers, and particularly when used in an aqueous furnish having a pH of from 4 to 6.
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The calendered paper preferably has a basis weight of from about 20 to about 40 pounds per ream, and the vesiculated beads are preferably used in an amount of from 4% to 6%. As a feature of the invention, it is found that the carboxyl-functional cross-linked beads used herein when used in aqueous suspension thickened with a neutralized polycarboxylic acid polymer thickener, enhance the retention of fines in the papermaking process when used in conjunction with anionic retention aids, especially carboxyl-functional acrylamide copolymers, and particularly when used in an aqueous furnish having a pH of from 4 to 6.</description><language>eng ; fre ; ger</language><subject>ACCESSORIES FOR PAPER-MAKING MACHINES ; CALENDERS ; IMPREGNATING OR COATING OF PAPER ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><creationdate>1988</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19880601&amp;DB=EPODOC&amp;CC=EP&amp;NR=0268729A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19880601&amp;DB=EPODOC&amp;CC=EP&amp;NR=0268729A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BATES, FERDINAND, JR</creatorcontrib><creatorcontrib>BERKA, ROMAN</creatorcontrib><title>Production of high bulk calendered paper containing vesiculated beads</title><description>A high bulk calendered paper comprises from 2% to about 6% of the weight of the paper of highly cross-linked, titanium dioxide-pigmented, polymeric vesiculated beads having a volume average particle size of at least about 5 microns up to about 35 microns. 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language eng ; fre ; ger
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subjects ACCESSORIES FOR PAPER-MAKING MACHINES
CALENDERS
IMPREGNATING OR COATING OF PAPER
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
title Production of high bulk calendered paper containing vesiculated beads
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