Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
  • D21H21/04—Slime-control agents
• • C—CHEMISTRY; METALLURGY
  • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
  • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
  • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
  • C12N1/20—Bacteria; Culture media therefor
  • C12N1/205—Bacterial isolates
• • C—CHEMISTRY; METALLURGY
  • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
  • C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
  • C12R2001/00—Microorganisms ; Processes using microorganisms
  • C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
  • C12R2001/465—Streptomyces
  • C12R2001/50—Streptomyces bikiniensis

Definitions

• the present invention relates to a method for reducing a production of a slime and a mixture making the same, and more particularly to a method and mixture for reducing a production of a slime by utilizing a dispersing agent and a benefit microorganism having an inhibition/killing ability.
• the waste pulp is always recycled.
• a starch and a coating in the waste paper provide an excellent nutrition source, it always believes that they are the main contaminating source for the microorganisms including bacteria and fungus.
• the papermaking factory usually adopts an airtight water cycle system.
• this condition also provides a favorable growth conditions for every kind of microorganism, e.g., temperature, pH, and nutrition. Consequently, a multiplicity and growth of the microorganism will be more intensified so as to cause a problem of an excess of microorganism. And a formation of the slime at the wet end is a very serious problem in the papermaking factory.
• a slime produced at the wet end during the papermaking process will cause the problems of foul smell, paper break and holey, and foxing. All these problems will seriously influence the paper quality and then cause a business trouble which will not only increase the cost owing to the indemnity, but also destroy the reputation.
• a method for reducing a production of a slime in a papermaking process includes steps of adding a dispersing agent into the slime to obtain a first mixture, mixing and culturing the mixture, adding an antagonistic into the first mixture to obtain a second mixture, mixing and culturing the second mixture for reducing the production of the slime, and re-adding the antagonistic into the mixed and cultured second mixture after a specific time period for further reducing the production of the slime.
• the slime is produced during the papermaking process.
• the antagonistic is Streptomyces bikiniensis.
• the antagonistic is amounted to 10 7 /mL after being cultivated for 24 hrs.
• the dispersing agent is selected from a group consisting of a Lignosulfonate (B100), a Di-alkyl sulfosuccinate (S100), a Nonionic surfactants (H40), a Polyethylene glycol (P100), a Nonionic surfactants (Bu200).
• B100 Lignosulfonate
• S100 Di-alkyl sulfosuccinate
• H40 Nonionic surfactants
• P100 Polyethylene glycol
• Bu200 Nonionic surfactants
• the specific time period is seven days.
• a method for reducing a production of a slime in a papermaking process includes steps of adding a dispersing agent into the slime to obtain a first mixture, mixing and culturing the first mixture, adding an antagonistic into the first mixture to obtain a second mixture, and mixing and culturing the second mixture for reducing the production of the slime.
• the slime is produced during the papermaking process.
• the antagonistic is Streptomyces bikiniensis.
• the antagonistic is amounted to 10 7 /mL after being cultivated for 24 hrs.
• the dispersing agent is selected from a group consisting of a Lignosulfonate (B100), a Di-alkyl sulfosuccinate (S100), a Nonionic surfactants (H40), a Polyethylene glycol (P100), a Nonionic surfactants (Bu200).
• B100 Lignosulfonate
• S100 Di-alkyl sulfosuccinate
• H40 Nonionic surfactants
• P100 Polyethylene glycol
• Bu200 Nonionic surfactants
• a mixture for reducing a production of a slime in a papermaking process include a dispersing agent, and an antagonistic, wherein the mixture and the slime are mixed and cultivated for reducing the production of the slime.
• the slime is produced during the papermaking process.
• the antagonistic is Streptomyces bikiniensis.
• the antagonistic is amounted to 10 7 /mL after being cultivated for 24 hrs.
• the dispersing agent is selected from a group consisting of a Lignosulfonate (B100), a Di-alkyl sulfosuccinate (S100), a Nonionic surfactants (H40), a Polyethylene glycol (P100), a Nonionic surfactants (Bu200).
• B100 Lignosulfonate
• S100 Di-alkyl sulfosuccinate
• H40 Nonionic surfactants
• P100 Polyethylene glycol
• Bu200 Nonionic surfactants
• [0038] 6 Incubate the culture isolated from the slime, the dispersing agent, and the antagonistic C5.
• the deposit amount is 74.6% when the dispersing agent is B100 (Lignosulfonate), the deposit amount is 49% when the dispersing agent is S100, the deposit amount is 46% when the dispersing agent is H40 (Nonionic surfactants), the deposit amount is 105% when the dispersing agent is P100 (Polyethylene glycol), and the deposit amount is 66.4% when the dispersing agent is Bu200 (Nonionic surfactants).
• these five groups show obvious reductions when compared to the contrast deposit 100%. According to the result, the addition of the antagonistic C5 is positive to inhibit/reduce the slime formation. Furthermore, no matter which dispersing agent is added with the antagonistic C5, after adding the antagonistic C5, the deposit amount can be further reduced actually. Thus, this experiment improves that the antagonistic owns the ability to reduce the slime production.
• the deposit amount is 29% after adding the antagonistic C5 and cultivating for 7 days. Compared to the contrast deposit 100% which is only added the culture isolated from slime, the difference is strictly obvious. However, the difference will be gradually reduced corresponding to the increase of the cultivation time (the deposit amount is 87% when Day 14). But, if another antagonistic C5 is added at Day 7, the deposition at Day 14 (after another 7 days) will be still remained as 28% which is obviously different from the contrast deposit 100%. According to the result, the periodical addition (7 days) of the antagonistic C5 is positive to inhibit/reduce the adhesion of the deposit.
• the mixture of the dispersing agent and the local antagonistic and the method utilizing the same according to the present invention can actually and efficiently reduce the production of the slime during the papermaking process, solve the problems caused by the slime, such as paper holey, foxing, and paper break, and further improve the quality of the paper.
• the method for reducing the slime production and the mixture making the same according to the present invention can substitute for the organic biocide and will not endanger the natural environment, so that it conforms to the standard of the environmental protection and the environmental consciousness.
• the present invention can easily improve the slime problem in the original papermaking process without increasing the production costs. Consequently, this is really an invention with creativity and industrial value.

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• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Genetics & Genomics (AREA)
• Biotechnology (AREA)
• Organic Chemistry (AREA)
• Zoology (AREA)
• Bioinformatics & Cheminformatics (AREA)
• Wood Science & Technology (AREA)
• Medicinal Chemistry (AREA)
• Microbiology (AREA)
• Biomedical Technology (AREA)
• Virology (AREA)
• Biochemistry (AREA)
• General Engineering & Computer Science (AREA)
• General Health & Medical Sciences (AREA)
• Tropical Medicine & Parasitology (AREA)
• Paper (AREA)
• Agricultural Chemicals And Associated Chemicals (AREA)
• Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

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Citations (27)

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• 2002
  • 2002-10-18 TW TW091124140A patent/TWI297052B/zh not_active IP Right Cessation
  • 2002-12-31 US US10/335,314 patent/US20040074621A1/en not_active Abandoned
• 2003
  • 2003-01-20 JP JP2003010589A patent/JP3875638B2/ja not_active Expired - Fee Related
• 2006
  • 2006-08-25 US US11/467,395 patent/US7520960B2/en not_active Expired - Fee Related

Patent Citations (27)

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