Staining prevention method for dry part of paper machine and staining inhibitor used for the method
OwnerHiroshi Sekiyainventor
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Abstract
A simple method capable of effectively preventing dry part areas, at least the surfaces of cylindrical dryers, from being stained even if a spray space is absent in a paper machine. The method can prevent the contact part of the dry part (D) of the paper machine with a paper body from being stained. The dry part staining prevention method can continuously feed/apply a staining inhibitor (T) to the paper body (W) at a position just before the dry parts.
Claims24
A method for preventing contamination of a contacting portion with a paper web in a dry part in a paper machine, where contamination-preventing agent is continuously supplied and applied to a paper web before entering in the dry part.
A contamination-preventing method in a dry part according to clam 1, wherein the continuous supplying and applying of the contamination-preventing agent to the paper web is constituted by indirect application to the paper web via a guide roller.
A contamination-preventing method in a dry part, where polymer is used as the contamination-preventing agent.
A method for preventing contamination of a contacting portion with a paper web in a dry part in a paper machine, wherein contamination-preventing agent is continuously supplied and applied to a paper web before entering in the dry part, and contamination-preventing agent is further continuously supplied and applied to a portion of the dry part which comes in contact with a paper web.
Dependencies are inferred from the claim text.