A Novel Insolubilizing System for Polyvinyl Alcohol (PVA)
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Accession number;06A0068243
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| Title;A Novel Insolubilizing System for Polyvinyl Alcohol (PVA) |
| Author;
YOKOI HIROAKI
(Seikopmc Kenkyukaihatsuhombu)
BARAKI HIDEO
(Seikopmc Kenkyukaihatsuhombu)
NASU KENJI
(Seikopmc Kenkyukaihatsuhombu)
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Journal Title;Japan TAPPI Journal
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Journal Code:G0115A
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ISSN:0022-815X
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VOL.60;NO.2;PAGE.204-211(2006)
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| Figure&Table&Reference;FIG.4, TBL.6, REF.5 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Recently, demands for efficient insolubilizing systems for polyvinyl alcohol (PVA) have been increased with market expansion of communications paper such as thermal paper. Various kinds of insolubilizing systems have been developed, but there are still problems to be solved, for example, insufficient performance, corrosion of thermal head in printer due to chloride ions. Thus, we have developed a novel insolubilizing system composed of carboxylated anionic PVA (A-PVA), polyamide-epichlorohydrin (PAE) and polyethyleneimine (PEI). Our novel system with insolubilizing agents called "PVA insolubilizer, CP series" has advantages of performance and reduction in chloride ion contents over A-PVA/PAE combination system. First, performances of various systems with or without PAE/PEI were studied for different types of PVAs, using cast film from their solution. The results showed that A-PVA/PAE/PEI combination system has an excellent insolubility. Application to over-coated layer in thermal paper is also exemplified. Then, mechanism of insolubilization by the combination system is briefly discussed. (author abst.) |
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