Protein and polymer as pith and stickies control agent in pulp and papermaking processes

A technology for pulping and viscose, which is used in textiles and papermaking, fat/resin/bitumen/wax removal of pulp, papermaking, etc., and can solve the problems of undisclosed physical/chemical properties and poor performance of milk protein.

Inactive Publication Date: 2004-12-01
SOLENIS TECH CAYMAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the use of milk protein in said patent proved ineffective
Said patent does not reveal the physical / chemical properties of this milk protein; however, its poor performance suggests that high molecular weight whey proteins are not included, which surprisingly found to be very effective in the present invention

Method used

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  • Protein and polymer as pith and stickies control agent in pulp and papermaking processes

Examples

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Embodiment

[0047] Standard Tape Detack Test (STDT)

[0048] To determine the effect of the compositions of the present invention as deposition control agents on sorted adhesive contaminants on plastic surfaces, especially found in recycled paper pulp, a laboratory was carried out using adhesive backed tape as an adhesive coupon. test. The adhesive samples can be made from any type of tape that does not break down in water. For this study, tapes made from styrene-butadiene rubber and vinyl ester were used. These two potential organic contaminants are known to cause viscose problems in secondary recycled fibers. The second sample was made from a polyester film such as MYLAR, a product sold by the DuPont Chemical Company of Namur. This material was chosen because the construction of paper machines is usually made of polyester, which is believed to be susceptible to deposition problems caused by glue and / or resin.

[0049] The test involved immersing a 2"x4" tape and a 2"x4" polyester My...

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PUM

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Abstract

Methods for inhibiting the depositions of organic contaminants from pulp in pulp and papermaking systems are disclosed. A combination of a protein and a cationic polymer is added to the pulp or applied to deposition prone surfaces of a papermaking system.

Description

[0001] This application claims priority to US Provisional Application No. 60 / 191,556, filed March 23,2000. field of invention [0002] The present invention relates to a method of inhibiting the deposition of organic pollutants in pulp and papermaking systems. Background of the invention [0003] The deposition of organic contaminants (ie pitch and stickies) on surfaces during papermaking is known to be detrimental to both product quality and the efficiency of the papermaking process. Some components are naturally occurring in wood and are released during various pulping and papermaking processes. Two specific manifestations of this problem are resins (mainly natural resins) and viscose (adhesives or coatings from recycled paper). Resins and glues share many characteristics including: hydrophobicity, tackiness, low surface energy, and as mentioned above the potential to cause problems with deposition, quality, and efficacy in the papermaking process. [0004] The term "pit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C9/08D21H21/02
CPCD21H21/02Y10S162/04D21C9/086
Inventor 迪伊·T·源古渠鸣
Owner SOLENIS TECH CAYMAN
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