Title:
【発明の名称】製紙用添加剤としての膨潤でんぷん
Document Type and Number:
Japanese Patent JPH11508329
Kind Code:
A
Abstract:
A wet end additive composition which is used as a sizing agent in a papermaking process, the composition comprising a two phase suspension of swollen starch having a dry substance from about 0.5 to about 30% by weight, a cooked swollen volume from about 1.6 ml./gram to about 100 ml./gram and cooked solubles from about 0.5% to about 50% by weight. The composition is prepared starting with a starch slurry having a relatively low concentration (dry substance) of starch. The slurry is subjected to carefully controlled swelling conditions (temperature and pH) which can vary depending upon the type of starch employed. The dry substance of the slurry also may vary depending upon whether a continuous or batch process is employed. The composition is used in a papermaking process by adding it to the furnish after the refining stage.
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Inventors:
Menzer Merle Jay
PLAZA EDWARD AH
PLAZA EDWARD AH
Application Number:
JP50395797A
Publication Date:
July 21, 1999
Filing Date:
June 21, 1996
Export Citation:
Assignee:
CPC International Incorporated
International Classes:
C08B30/12; C09D103/02; C09J103/02; D21H17/28; D21H23/18; (IPC1-7): D21H17/28
Attorney, Agent or Firm:
Mitsufumi Esaki (2 others)