US3140222A - Treatment of fourdrinier wire - Google Patents

Treatment of fourdrinier wire Download PDF

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US3140222A
US3140222A US161702A US16170261A US3140222A US 3140222 A US3140222 A US 3140222A US 161702 A US161702 A US 161702A US 16170261 A US16170261 A US 16170261A US 3140222 A US3140222 A US 3140222A
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Prior art keywords
wire
fourdrinier
paper
fourdrinier wire
weight
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US161702A
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Raymond J Michalski
Theodore R Newman
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ChampionX LLC
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Nalco Chemical Co
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Priority to US161702A priority Critical patent/US3140222A/en
Priority to GB35810/62A priority patent/GB969118A/en
Priority to DEN22180A priority patent/DE1262483B/de
Priority to FI621839A priority patent/FI49999C/fi
Priority to FR914623A priority patent/FR1358392A/fr
Priority to NO146749A priority patent/NO125985B/no
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/30—Protecting wire-cloths from mechanical damage
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/046—Hydroxy ethers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/042—Sulfate esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/09—Heterocyclic compounds containing no sulfur, selenium or tellurium compounds in the ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/02—Esters of silicic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01—Emulsions, colloids, or micelles

Definitions

  • This invention relates to a method for improving by chemical means the operational efliciency of a Fourdrinier paper making machine. More specifically, the invention is concerned with extending the life of Fourdrinier wires commonly employed in Fourdrinier paper making machines.
  • One of the most versatile machines used in the manufacture of paper is the well-known Fourdrinier paper making machine. Utilizing machines of this type, a Wide variety of paper products are produced in mills located throughout the entire United States. Such conventional paper and paper products as bags, building boards, paper boards, various book stocks, and such specialized paper products as carbon paper stocks, cigarette papers, glassine and greaseproof papers, napkins, newsprint, pulp tissue, wrapping, and Writing stocks may be produced on Fourdrinier machines.
  • a factor which sometimes tends to accelerate abrasive Wear of Fourdrinier wires is corrosion. In and of itself, corrosion is not particularly damaging to Fourdrinier wire, but it tends to substantially reduce abrasion resistance and draining characteristics of the wire so that frictional effects imposed on the wire are increased.
  • a chemical treatment is to succeed in improving the operation characteristics of a Fourdrinier paper making machine by the extension of the useful life of the Fourdrinier wire used in such machines, such a treatment must function in a two fold manner, e.g., it must be capable of both preventing abrasive wear by providing a lubricating action on the wire, and secondly, it mustact as a dispersant or cleansing agent to prevent orto remove deposits between the open areas defined by the mesh of the particular wire used. It therefore becomes an object of the invention to provide a chemical treament, which when applied in low, economical dosages, will improve the operational efficiency of a Fourdrinier paper making machine.
  • Another object of: the invention is to provide a chemical which will substantially reduce the abrasive wear of Foudrinier wires.
  • a further object is to provide a chemical which will machine may be greatly improved by treating the bottom of the wire with a water soluble, extreme pressure lu bricant and either a nonionic or anionic, Water dispersible wetting agent.
  • a water soluble, extreme pressure lu bricant and either a nonionic or anionic, Water dispersible wetting agent By using this combination of ingredients is is possible to treat Fourdrinier wire with as little as .005 pound of treating agent per ton, based on the weight of the paper formed on the wire with the above combination of chemicals, to substantially increase wire life.
  • the chemicals have a twofold effect in that they afford lubricity and improve the drainage of the stock formed, thereby providing a surface which has less tendency to abrade than an untreated wire, when passing over the various sections of a typical Fourdrinier machine.
  • Our investigations have led us to believe that localized areas of stress are excessive to the point that high pressures are involved. This means thatconventional lubricants are of little value in the solution
  • compositions of the invention are applied to improve the operational characteristics of a Fourdrinier machine, reference may be had to the drawing.
  • the drawing is a simple schematic diagram of a typical Fourdrinier end of a paper making machine.
  • the numerals used in the drawing represent the various com ponents of the Fourdrinier system. It is to be understood that the drawing is simplified, but serves to illustrate generally a typical Fourdrinier system.
  • the headbox and slice area are generally represented by the numerals 1 and 2 respectively.
  • the breast roll is illustrated by the numeral 3 whereas the deckle rolls and forming board are shown by the numerals 4 and 5.
  • the table roll 6, tray 7, and suction flat boxes 8 are another common group of components found in Fourdrinier machines.
  • the couch roll 9, dandy roll 10, and lump breaker roll 11, might be considered as ending the top section of a typical Fourdrinier assemblage.
  • Wire showers 12, wash rolls 13, automatic guide rolls 14, stretch rolls 15, and wire return rolls 16 and 16A all compose what is generically referred to herein as the return section of the Fourdrinier wire, and operate to control the bottom movement of the wire.
  • the wire itself is indicated by the numeral 18.
  • An important concept of the invention resides in the use of a shower applicator 17 which is located between a wire return roll 16A and the breast roll 3. This shower spray is a preferred application point for applying the wire life extending chemicals of the invention. It is obvious that the spray 17 should be positioned so that it uniformly sprays the chemicals onto the entire width of the wire 18.
  • the chemical be applied to the bottom of the wire.
  • the word bottom is used to refere to any point in the return section of the Fourdrinier wire between the couch roll 9 and its point of subsequent contact with the breast roll 3. This wire bottom section is admirably suited for application of the treating agent. It is preferable that the application point he as near the breast roll as possible.
  • An alternative method of applying the chemicals of the invention would be to coat the chemicals by suitable means (not shown) on the wire return roll 16, whereby the bottom of the wire would be coated uniformly. Regardless of the mode of application, it is important that the entire wire 18 be covered with the chemical and that the chemical be applied in the form of a dilute aqueous solution.
  • the chemicals in the invention are most preferably applied as a dilute aqueous solution to the bottom of the wire just prior to its engagement with the stock entering from the headbox 1 through the slice 2.
  • the application of a dilute aqueous solution may be achieved by dissolving the chemicals into a suitable water source (not shown) and thereby applying them through the header or spray 17.
  • the chemicals may be prepared initially either as dry chemicals to be subsequently diluted at the mill site or point of use, or they may be made up into an aqueous concentrate for efiiciency in shipment to the mill site where it may be diluted by the machine operators.
  • the water soluble, extreme pressure lubricants are sulfhydryl-containing compounds. They may be classified broadly as nitrogen-containing heterocyclic compounds characterized by a ring nitrogen bonded to a ring carbon. To the ring carbon is attached a non-ring sulfhydryl group.
  • the characteristic structural formula covering this sulfhydryl heterocyclic combination of elements may be illustrated by the Formula I below:
  • FORMULA I ll "-sn Compounds having this illustrative molecular configuration and which are valuable in the practice of the invention are such well-known compounds as Z-mercaptothiazole, 2 mercaptobenzimidazole, Z-mercaptobenzoxazole, and Z-mercaptobenzothiazole. Of these compounds, Z-mercaptobenzothiazole is preferred since it is relatively inexpensive and is commercially available.
  • the above compounds are, for practical purposes, relatively water insoluble, but they are rendered readily soluble by converting them to their alkali metal salts.
  • Any of the well-known alkali metal salts of these compounds e.g., sodium, potassium, cesium, and rubidium may be used, although due to availability and economics, the sodium salts are preferred.
  • Equivalent to the sodium salts of these compounds are the ammonium salts, but they are not particularly preferred due to volatility problems encountered when the machines are operated at elevated temperatures.
  • the water miscible anionic and nonionic dispersing agents which may be used to improve the drainage characteristics and thereby decrease the abrasiveness of the wire may be selected from a large number of well-known chemicals.
  • the well-known alkaryl sulfonic acids and their alkali metal salts such as sodium dodecylbenzene sulfonate may be used as well as the alkali metal salts of sulfonated alcohols and the sulfonated lignins.
  • nonionic wetting agent be combined with the water soluble, extreme pressure lubricant.
  • a preferred class of nonionic materials are the alkyl substituted ethoxylated phenols which are generically illustrated by structural Formula II.
  • R is an alkyl group of from 8 to 20 carbon atoms and n a positive integer having a value of not more than 20.
  • a product falling in this group is dodecyl phenol which had been reacted with 9 moles of ethylene oxide.
  • nonionic wetting agents are the wellknown Pluronic materials which are block copolymers of propylene and ethylene oxide and are described in US. Patent 2,674,619.
  • the chemicals are fed at a relatively low dosage, e.g., .005 pound per ton based on the dry weight of the paper formed on the Fourdrinier wire, with the preferred dosage being from 0.025 to 0.1 pound per ton.
  • the wetting agents and the water dispersible, water soluble, extreme pressure lubricants are combined so as to provide a composition containing from 5 to 98% by weight of the water soluble, extreme pressure lubricant and from 2 to 95% by weight of the water miscible nonionic and anionic dispersing agent.
  • the proportions of the two ingredients may be varied, depending upon the particular condition of the Fourdrinier machine and wire to be treated. For example, if it is determined that abrasive wear is due ex tensively to plugging of the mesh openings of the wire, then it would be desirable that a larger quantity of surface active agent be employed, whereas if abrasive wear is the predominant problem, then the amount of water soluble extreme pressure lubricant should be increased.
  • compositions of the invention may be either formulatecl as a dry mix and then diluted at the point of use, or preferably, they are prepared as an aqueous concentrate which is then diluted to use concentration.
  • a typical composition useful in the practices of the invention is the aqueous concentrate illustrated by Formula III below:
  • FORMULA III Ingredients: Percent by weight Sodium Z-mercaptobenzothiazole 40 Isopropanol 7.5 Dodecyl phenol reacted with 9 moles of ethylene oxide 2.5 Soft water 50 1 Freezing point depressant.
  • the silicon containing compounds may be of two general types, the first being an organo silicon oxide condensation product which encompasses such well-known products as the condensed esters or" ortho and metasilicic acid and the well-known silicon polymers such as the poly dirnethyl siloxanes. Products of this general type are described in detail in Trautman et al., US. 2,416,- 503-4.
  • silicon containing compounds of this type it is important that they be at least colloidally dispersible in water. When the compounds are not dispersible per se it is possible to form them into a sufficient state of subdivision, e.g., 1 micron or less, thereby making it possible to colloidally disperse such silicon containing compounds into the water and to this extent they are usable.
  • a preferred group of silicon containing compounds are the organo functional silanes generically represented by Formula IV:
  • R is a lower aliphatic hydrocarbon group of not more than 4 carbon atoms in chain length.
  • Typical examples of compounds coming within the above structural formula are gamma-aminopropyl triethoxy silane, delta-amino butyl methyl-diethoxy silane and 2-(3-trimethoxy silyl propylamino) ethyl amine.
  • the above described water dispersible, organic silicon-containing compounds not only tend to improve the lubricating characteristics of the formula, but they also in some instances act as a defoaming agent to prevent excessive foam formation at the point of formula application.
  • Example I This test was conducted in a paper mill producing unbleached kraft liner board on a Fourdrinier machine wire at operating speeds between 500 and 1350 linear feet per minute.
  • Fourdrinier wire life experience was such that a typical wire lasted between 8 and 10 days. Inspection of the wire indicated that abrasive degradation was occuring due to the passing of the wire over the suction boxes.
  • Formula III was injected onto the wire via a spray header located between the breast roll and the table roll with the dosage being started initially at .15 pound per ton for several hours and then being reduced to 0.1 pound per ton. At the end of several months testing it was obvious that the wire life dramatically increased. Some runs allowed a machine to operate for 20 days, with the shortest wire life being 12 days. Inspection of the wire always showed that it was clean with little or no plugging with either cellulosic material or foreign matter of any kind.
  • Example II In an unbleached kraft mill, one machine produced kraft board and paper at a rate of 1200 to 2100 linear feet a minute. Normal wire life at this mill average 7% days. Formula III was applied to the bottom of the wire by means of a spray located near the breast roll at a dosage ranging between 0.08 to 0.25 pound per ton. The test extended for several months and at the end of this time it was calculated that wire life was extended to an average of 10 /3 days. This is, of course, a substantial increase over the original wire life average experienced before the treatment. The treatment improved and maintained the drainage characteristics over the drainage achieved on a new wire at the start of the test.
  • a method for improving, by chemical means, the operational efliciency of a Fourdrinier paper making machine which utilizes a coninuous Fourdrinier wire upon which paper and paper products are formed which comprises treating the bottom of said Fourdrinier wire with a. dilute aqueous solution which contains at least .005 pound per ton, based on the dry weight of the paper and paper products formed on said Fourdrinier wire, of a composition having the formula: (A) from 598% by weight of water soluble, extreme pressure lubricant comprising a nitrogen-containing heterocyclic compound characterized by a ring nitrogen bonded to a ring carbon to which is attached a sulfhydryl group, and (B) from 295% by weight of a water miscible dispersing agent from the group formula:
  • R is an alkyl group of from 8 to 20 carbon atoms and n is a positive integer having a value of not more than 20.
  • composition also contains from 0.01 to 5% by weight of a water dispersible, organic silicon-containing compound from the group consisting of organo-silicon oxide condensation products and organo functional silanes.
  • organo function silane is an amino functional silane of the formula:
  • R is a lower aliphatic hydrocarbon group of not more than 4 carbon atoms in chain length and Y is an aliphatic amine-containing group and n has the value of 01.
  • a method for improving, by chemical means, the operational efiiciency of a Fourdrinier paper making machine of the type utilizing a continuous Fourdrinier wire upon which paper and paper products are formed, and a breast roll and a couch roll as the main driving rolls for the Fourdrinier wire which comprises treating the bottom of the Fourdrinier wire at a point after its contact with the couch roll, but before its subsequent contact with the breast roll, with a dilute aqueous solution which contains at least .005 pound per ton, based on the dry weight of the paper and paper products formed on said Fourdrinier wire, of a composition having the formula: (A) from 595% by weight of an alkali metal-2-mercaptobenzothiazole and (B) from 295% by weight of water miscible, nonionic dispersing agent having the general structural formula:
  • R is an alkyl group of from 8 to 20 carbon atoms and n is a positive integer having a value of not more than 20.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Paper (AREA)
  • Lubricants (AREA)
US161702A 1961-12-22 1961-12-22 Treatment of fourdrinier wire Expired - Lifetime US3140222A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US161702A US3140222A (en) 1961-12-22 1961-12-22 Treatment of fourdrinier wire
GB35810/62A GB969118A (en) 1961-12-22 1962-09-20 Method of improving the operational efficiency of a fourdrinier paper making machine
DEN22180A DE1262483B (de) 1961-12-22 1962-10-05 Mittel zum Schmieren der Innenseite der Maschinensiebe von Langsiebpapiermaschinen
FI621839A FI49999C (fi) 1961-12-22 1962-10-11 Puhdistus- ja voiteluaine, joka on tarkoitettu levitettäväksi Fourdrin ier-viiralle.
FR914623A FR1358392A (fr) 1961-12-22 1962-11-07 Perfectionnement à la fabrication du papier
NO146749A NO125985B (enrdf_load_html_response) 1961-12-22 1962-12-08

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316176A (en) * 1967-04-25 Paper making process
US3372117A (en) * 1965-11-26 1968-03-05 Hooker Chemical Corp Cold forming lubricant
US4995944A (en) * 1988-09-16 1991-02-26 Dearborn Chemical Company Ltd. Controlling deposits on paper machine felts using cationic polymer and cationic surfactant mixture
US5223097A (en) * 1986-01-09 1993-06-29 W. R. Grace Ab Method for controlling pitch on a paper-making machine
US5626720A (en) * 1986-01-09 1997-05-06 W.R. Grace & Co.-Conn. Method for controlling pitch on a papermaking machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1216861A (en) * 1916-06-07 1917-02-20 Napoleon Shorey Suction-box.
CA523793A (en) * 1956-04-10 J. Beaubien Stewart Metal-working lubricant
US2825693A (en) * 1955-02-03 1958-03-04 Shell Dev Metal working lubricant
US2947703A (en) * 1958-07-16 1960-08-02 Nalco Chemical Co Process of inhibiting corrosion of ferrous metals in contact with aqueous solutions of acids
US2992469A (en) * 1959-05-14 1961-07-18 Lindsay Wire Weaving Co Fourdrinier wire cloth
US2999064A (en) * 1959-02-11 1961-09-05 Master Chemical Corp Stable aqueous cutting fluid

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA523793A (en) * 1956-04-10 J. Beaubien Stewart Metal-working lubricant
US1216861A (en) * 1916-06-07 1917-02-20 Napoleon Shorey Suction-box.
US2825693A (en) * 1955-02-03 1958-03-04 Shell Dev Metal working lubricant
US2947703A (en) * 1958-07-16 1960-08-02 Nalco Chemical Co Process of inhibiting corrosion of ferrous metals in contact with aqueous solutions of acids
US2999064A (en) * 1959-02-11 1961-09-05 Master Chemical Corp Stable aqueous cutting fluid
US2992469A (en) * 1959-05-14 1961-07-18 Lindsay Wire Weaving Co Fourdrinier wire cloth

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316176A (en) * 1967-04-25 Paper making process
US3372117A (en) * 1965-11-26 1968-03-05 Hooker Chemical Corp Cold forming lubricant
US5223097A (en) * 1986-01-09 1993-06-29 W. R. Grace Ab Method for controlling pitch on a paper-making machine
US5626720A (en) * 1986-01-09 1997-05-06 W.R. Grace & Co.-Conn. Method for controlling pitch on a papermaking machine
US4995944A (en) * 1988-09-16 1991-02-26 Dearborn Chemical Company Ltd. Controlling deposits on paper machine felts using cationic polymer and cationic surfactant mixture

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FI49999B (enrdf_load_html_response) 1975-07-31
NO125985B (enrdf_load_html_response) 1972-12-04
DE1262483B (de) 1968-03-07
FR1358392A (fr) 1964-04-17
GB969118A (en) 1964-09-09
FI49999C (fi) 1975-11-10

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