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WO2019002682A1 - Composition, son utilisation et procédé permettant d'éliminer et d'empêcher la contamination d'un équipement de fabrication de papier par des résines résistantes à l'humidité - Google Patents

Composition, son utilisation et procédé permettant d'éliminer et d'empêcher la contamination d'un équipement de fabrication de papier par des résines résistantes à l'humidité Download PDF

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Publication number
WO2019002682A1
WO2019002682A1 PCT/FI2018/050500 FI2018050500W WO2019002682A1 WO 2019002682 A1 WO2019002682 A1 WO 2019002682A1 FI 2018050500 W FI2018050500 W FI 2018050500W WO 2019002682 A1 WO2019002682 A1 WO 2019002682A1
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WO
WIPO (PCT)
Prior art keywords
composition
equipment
wet strength
papermaking
surfactant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/FI2018/050500
Other languages
English (en)
Inventor
Yong Zou
Yuping Luo
Anna CASASÚS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kemira Oyj
Original Assignee
Kemira Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kemira Oyj filed Critical Kemira Oyj
Priority to CN201880042209.0A priority Critical patent/CN110785524B/zh
Priority to CA3066027A priority patent/CA3066027C/fr
Priority to PL18740885.1T priority patent/PL3645790T3/pl
Priority to KR1020197037512A priority patent/KR102657232B1/ko
Priority to ES18740885T priority patent/ES2932649T3/es
Priority to RU2019144011A priority patent/RU2762277C2/ru
Priority to EP18740885.1A priority patent/EP3645790B1/fr
Priority to BR112019026638-0A priority patent/BR112019026638B1/pt
Publication of WO2019002682A1 publication Critical patent/WO2019002682A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/008—Prevention of corrosion or formation of deposits on pulp-treating equipment
    • 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
    • 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
    • D21H21/14—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 characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents

Definitions

  • This invention relates to compositions and methods for cleaning wet strength resin contamination from papermaking equipment and/or for preventing wet strength resins from contaminating papermaking equipment.
  • wet strength resins are major additives used in the papermaking process.
  • Use of wet strength resins for example, polyamide-epichlorohydrin (PAE)
  • PAE polyamide-epichlorohydrin
  • Paper mills spend time and money to clean the fouled felts and even have to change the felts frequently.
  • Chemical products that are currently used for wet press felt cleaning or cleaning wet strength resin contamination are either highly caustic or highly acidic. These chemical products are corrosive, not renewable or biodegradable, and are inappropriate for safe handling. Additionally, the products not only remove the wet strength resin contamination but may also damage the felt itself.
  • One objective of the present invention is to provide solutions to or alleviate the problems encountered in the prior art.
  • one objective of the present invention is to provide a substantially biodegradable, safe and efficient composition for cleaning wet strength resin contamination from papermaking equipment and/or preventing wet strength resins from contaminating papermaking equipment.
  • a typical composition according to the present invention for cleaning wet strength resin contamination from papermaking equipment and/or for preventing wet strength resins from contaminating papermaking equipment comprises an aqueous solution of a weak organic acid; a surfactant, preferably nonionic surfactant; a divalent metal ion containing catalyst; and optionally a glycol ether containing solvent.
  • a typical method according to present invention of cleaning wet strength resin contamination from papermaking equipment comprises the steps of contacting the equipment with a composition comprising an aqueous solution of a weak organic acid; a surfactant, preferably a nonionic surfactant; a divalent metal ion containing catalyst and optionally a glycol ether containing solvent.
  • a typical method according to the present invention of preventing wet strength resins from contaminating papermaking equipment of a papermaking process comprises the steps of contacting the equipment with a composition comprising an aqueous solution of a weak organic acid; a surfactant, preferably a nonionic surfactant; a divalent metal ion containing catalyst and optionally a glycol ether containing solvent, before and/or during and/or after addition of the wet strength resin in the papermaking process.
  • compositions of the current invention have multiple advantages.
  • the compositions are renewable, environmentally friendly and substantially biodegradable.
  • the cleaning compositions are FDA compliant and thus are suitable for cleaning equipment used in making paper, board or the like to be used with food contact.
  • the compositions are stable and highly efficient in cleaning wet strength resin contamination from papermaking equipment and in preventing wet strength resins from contaminating papermaking equipment, without damaging the equipment.
  • the components of the composition may also show synergistic effect, wherein the composition may have higher cleaning efficiency or capacity than the individual components.
  • the present invention provides stable, renewable, environmentally friendly, FDA compliant and safe to handle composition for cleaning wet strength resin contamination from papermaking equipment and/or preventing wet strength resins from contaminating papermaking equipment.
  • compositions for cleaning wet strength resin contamination from papermaking equipment and/or preventing wet strength resins from contaminating papermaking equipment comprising an aqueous solution of a weak organic acid; a surfactant, preferably a nonionic surfactant; a divalent metal ion containing catalyst, and optionally a glycol ether containing solvent.
  • the weak organic acid is selected from a group consisting of citric acid, adipic acid, glycolic acid and combinations thereof, preferably citric acid.
  • glycol ether containing solvent is selected from a group consisting of diethylene glycol monobutyl ether, diethylene glycol monoethyl ether and a combination thereof.
  • the surfactant is selected from a group consisting of isotridecyl alcohol ethoxylate, dodecanol ethoxylate, ethoxylated 2,4,7,9-tetramethyl-5- decyne-4,7-diol, polyethylene glycol trimethylnonyl ether, polysorbates, ethoxylated secondary alcohols containing surfactants and combinations thereof.
  • the divalent metal ion is selected from a group consisting of Ca +2 , Mg +2 , Ba +2 , Fe +2 , Cu +2 , Ni +2 , Mn +2 and Co +2 , preferably Fe +2 , Ca +2 , Cu +2 or Ni +2 .
  • the weak organic acid concentration is within 15%-45%, preferably 20%- 30%.
  • the glycol ether containing solvent concentration is within 0%-15%, preferably 3%-8%.
  • the surfactant concentration is within 2%-25%, preferably 5%-13%.
  • the divalent metal ion containing catalyst concentration is within 0.01%-5%, preferably 0.25% - 3%.
  • such cleaning compositions are further diluted with one or more diluting agents wherein diluting agent:composition, weight:weight, ratio is in range 500: 1 - 0: 1, preferably 200: 1- 9:1.
  • Certain embodiments of the invention are related to methods of cleaning wet strength resins contamination from a papermaking equipment, the method comprising the steps of contacting the equipment with a composition comprising an aqueous solution of a weak organic acid; a surfactant, preferably a nonionic surfactant; a divalent metal ion containing catalyst, and optionally a glycol ether containing solvent.
  • the weak organic acid is selected from a group consisting of citric acid, adipic acid, glycolic acid and combinations thereof, preferably citric acid.
  • the glycol ether containing solvent is selected from a group consisting of diethylene glycol monobutyl ether, diethylene glycol monoethyl ether and a combination thereof.
  • the surfactant is selected from a group consisting of isotridecyl alcohol ethoxylate, dodecanol ethoxylate, ethoxylated 2,4,7, 9-tetramethyl-5-decyne-4,7-diol, polyethylene glycol trimethylnonyl ether, polysorbates, ethoxylated secondary alcohols containing surfactants and combinations thereof.
  • the divalent metal ion is selected from a group consisting of Ca +2 , Mg +2 , Ba +2 , Fe +2 , Cu +2 , Ni +2 , Mn +2 and Co +2 , preferably Fe +2 , Ca +2 , Cu +2 or Ni +2 .
  • the weak organic acid concentration is within 15%-45%, preferably 20%-30%.
  • the glycol ether containing solvent concentration is within 0%-15%, preferably 3%-8%.
  • the surfactant concentration is within 2% -25%, preferably 5%-13%.
  • the divalent metal ion containing catalyst concentration is within 0.01%-5%, preferably 0.25%-3%.
  • such cleaning compositions are further diluted with one or more diluting agents wherein diluting agent:composition, weight:weight, ratio is in range 500: 1-0: 1, preferably 200: 1-9: 1. In certain embodiments cleaning is performed at elevated temperatures.
  • contact time is between 0.1 second to 5 hours, preferably between 30 seconds to 1 hour, more preferably 1 minute to 30 minutes.
  • the papermaking equipment is wet press felts, dryer fabric, papermaking equipment used in a papermaking process that uses wet strength resins or other papermaking machine surface.
  • the wet strength resin is polyamide-epichlorohydrin (PAE) resin.
  • Certain embodiments of the invention are related to methods of preventing wet strength resins from contaminating papermaking equipment of a papermaking process, the method comprising the steps of contacting the equipment with a composition comprising an aqueous solution of a weak organic acid; a surfactant, preferably a nonionic surfactant, a divalent metal ion containing catalyst, and optionally a glycol ether containing solvent, before and/or during and/or after addition of the wet strength resin in the papermaking process.
  • the weak organic acid is selected from a group consisting of citric acid, adipic acid, glycolic acid and combinations thereof, preferably citric acid.
  • the glycol ether containing solvent is selected from a group consisting of diethylene glycol monobutyl ether, diethylene glycol monoethyl ether and a combination thereof.
  • the surfactant is selected from a group consisting of isotridecyl alcohol ethoxylate, dodecanol ethoxylate, ethoxylated 2,4,7,9- tetramethyl-5-decyne-4,7-diol, polyethylene glycol trimethylnonyl ether, polysorbates, ethoxylated secondary alcohols containing surfactants and combinations thereof.
  • the divalent metal ion is selected from a group consisting of Ca +2 , Mg +2 , Ba +2 , Fe +2 , Cu +2 , Ni +2 , Mn +2 and Co +2 , preferably Fe +2 , Ca +2 , Cu +2 or Ni +2 .
  • the weak organic acid concentration is within 15%-45%, preferably 20%- 30%.
  • the glycol ether containing solvent concentration is within 0%-15%, preferably 3%-8%.
  • the surfactant concentration is within 2%-25%, preferably 5%-13%.
  • the divalent metal ion containing catalyst concentration is within 0.01%-5%, preferably 0.25%-3%.
  • cleaning compositions are further diluted with one or more diluting agents wherein diluting agent:composition, weight:weight, ratio is in range 500: 1-0: 1, preferably 200: 1- 9:1.
  • contact time is between 0.1 second to 5 hours, preferably between 30 seconds to 1 hour, more preferably 1 minute to 30 minutes.
  • the papermaking equipment is wet press felts, dryer fabric, papermaking equipment used in a papermaking process that uses wet strength resins or other papermaking machine surface.
  • the wet strength resin is polyamide- epichlorohydrin (PAE) resin.
  • Certain embodiments of the invention are related to use of a composition, comprising an aqueous solution of a weak organic acid; a surfactant, preferably a nonionic surfactant; a divalent metal ion containing catalyst, and optionally a glycol ether containing solvent, for cleaning an equipment by contacting the equipment with the composition.
  • the weak organic acid is selected from a group consisting of citric acid, adipic acid, glycolic acid and combinations thereof, preferably citric acid.
  • the glycol ether containing solvent is selected from a group consisting of diethylene glycol monobutyl ether, diethylene glycol monoethyl ether and a combination thereof.
  • the surfactant is selected from a group consisting of isotridecyl alcohol ethoxylate, dodecanol ethoxylate, ethoxylated 2,4,7,9-tetramethyl-5- decyne-4,7-diol, polyethylene glycol trimethylnonyl ether, polysorbates, ethoxylated secondary alcohols containing surfactants and combinations thereof.
  • the divalent metal ion is selected from a group consisting of Ca +2 , Mg +2 , Ba +2 , Fe +2 , Cu +2 , Ni +2 , Mn +2 and Co +2 , preferably Fe +2 , Ca +2 , Cu +2 or Ni +2 .
  • the weak organic acid concentration is within 15%-45%, preferably 20%- 30%.
  • the glycol ether containing solvent concentration is within 0%-15%, preferably 3%-8%.
  • the surfactant concentration is within 2%-25%, preferably 5%-13%.
  • the divalent metal ion containing catalyst concentration is within 0.01%-5%, preferably 0.25%-3%.
  • such cleaning compositions are further diluted with one or more diluting agents wherein diluting agent: composition, weight: weight, ratio is in range 500: 1-0: 1, preferably 200: 1- 9:1. In certain embodiments cleaning is performed at elevated temperatures.
  • contact time is between 0.1 second to 5 hours, preferably between 30 seconds to 1 hour, more preferably 1 minute to 30 minutes.
  • the equipment is a paper making equipment.
  • the papermaking equipment is wet press felts, dryer fabric, papermaking equipment used in a papermaking process that uses wet strength resins or other papermaking machine surface.
  • the papermaking equipment contains contamination formed from use of wet strength resins in a papermaking process.
  • the wet strength resin is polyamide-epichlorohydrin (PAE) resin.
  • PAE polyamide-epichlorohydrin
  • the equipment is a paper making equipment.
  • the papermaking equipment contains contamination formed from use of wet strength resins in a papermaking process.
  • the composition according to invention comprises an aqueous solution of a weak organic acid.
  • the use of weak organic acid makes the composition more benign and safe, both for process operators and workers as well as for equipment which is to be cleaned. At the same time, however, it promotes the unexpectedly sufficient cleaning effect which is obtained with the composition.
  • the organic acid concentration in the composition is within 10 -45 , preferably 20 -30 .
  • Weak organic acid of the current invention may have pKa greater than 1.5, preferably greater than 2, more preferably greater than 3.
  • the weak organic acid may be dibasic or tribasic acid and it may have at least one pKa value in the range from 3 to 6.
  • the weak organic acid may be selected from a group consisting of citric acid, adipic acid, glycolic acid and any combinations thereof.
  • the weak organic acid is citric acid.
  • the composition comprises further a surfactant, preferably a nonionic surfactant.
  • the surfactant concentration in the composition may preferably be within 2%-25%, preferably 5%-13%.
  • a surfactant as referred in this disclosure, contains a hydrophilic head group and a hydrophobic tail group.
  • Nonionic surfactants are surfactants with an uncharged hydrophilic head group and do not dissociate into ions in aqueous solutions.
  • Preferable nonionic surfactants include ethoxylates, especially fatty alcohol ethoxylates, alkoxylates and cocamides.
  • a surfactant useful for the current invention makes the components of the claimed composition miscible with each other, keeps them well dispersed and forms a micro-emulsion.
  • the surfactants may also enhance the cleaning efficiency of the individual components of the composition.
  • surfactant may be selected from a group consisting of isotridecyl alcohol ethoxylate, dodecanol ethoxylate, ethoxylated 2,4,7,9- tetramethyl-5-decyne-4,7-diol, polyethylene glycol trimethylnonyl ether, polysorbates, ethoxylated secondary alcohols-containing surfactants and any combinations thereof.
  • Suitable dodecanol ethoxylates are nonionic surfactants containing one or more moles of ethylene oxide per mole of dodecanol. In certain embodiments mole ratio of ethylene oxide and dodecanol is 7: 1.
  • Suitable isotridecyl alcohol ethoxylates are nonionic surfactants containing one or more moles of ethylene oxide per mole of isotridecyl alcohol. In certain embodiments mole ratio of ethylene oxide and isotridecyl alcohol is 9: 1.
  • Suitable polysorbates are nonionic surfactants composed of fatty acid esters of polyoxyethylene sorbitan.
  • polysorbates are polyoxyethylene sorbitan monolaurate, polysorbate sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate.
  • suitable polyethylene glycol trimethylnonyl ether may be polyoxyethylene 2,6,8-trimethyl-4-nonyl ether.
  • the composition comprises further a divalent metal ion containing catalyst.
  • the divalent metal ion containing catalyst concentration in the composition may be within 0.01%-5%, preferably 0.25%-3%.
  • the divalent metal ion may be selected from a group consisting of Ca +2 , Mg +2 , Ba +2 , Fe +2 , Cu +2 , Ni +2 , Mn +2 , and Co +2 , preferably from a group of Fe +2 , Ca +2 , Cu +2 and Ni +2 .
  • the divalent metal ion containing catalyst may be in form of salt, where the counterion is any suitable organic or inorganic, divalent or monovalent anion, preferably citrate, acetate, maleate, sulphate or chloride, even more preferably sulphate or chlorate.
  • the composition comprises a glycol ether containing solvent.
  • the glycol ether containing solvents may be selected from the group consisting of diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, ethylene glycol monophenyl ether, diethylene glycol monophenyl ether, polyethylene glycol monophenyl ether, triethylene glycol monophenyl ether containing solvents and any combination thereof.
  • the glycol ether containing solvent is selected from the group consisting of diethylene glycol monobutyl ether, diethylene glycol monoethyl ether and any combinations thereof.
  • the glycol ether containing solvent concentration in the composition may be within 0 -15 , preferably 0.01%- 15%, more preferably 3%-8%.
  • compositions of the current invention remove wet strength resin contamination and/or prevent wet strength resins from contaminating papermaking equipment through removal, prevention or reduction of formation of crosslinked chemicals from wet strength resins on the papermaking equipment.
  • the cleaning composition may be diluted before it is used for cleaning the papermaking equipment and brought into contact with the said equipment.
  • Diluting agent may be selected from the group consisting of water, compatible chemicals, compatible chemical mixtures or premixtures, compatible liquids, compatible solids or combinations thereof, preferably water.
  • "Compatible” are those that do not result in separation between the components of compositions and/or precipitation, and maintain the micro-emulsion state of the composition while and/or after adding and/or mixing those to the composition.
  • diluting agent:composition ratio, given weight:weight is in range 500: 1 - 0: 1, preferably 200: 1-9: 1.
  • the composition is contacted with an equipment, preferably with a papermaking equipment.
  • the contacting may be carried out by spraying the composition onto the equipment surface, by soaking or immersing the equipment into the composition or by applying the composition to a circulating process flow, which comes into contact with the equipment.
  • the cleaning is performed at an elevated temperature. This means that the composition and/or the equipment are at an elevated temperature at the time of cleaning. Cleaning at elevated temperatures is performed through heating the cleaning composition or equipment being cleaned, or both, at elevated temperature before and/or while in contact with each other.
  • the cleaning compositions or equipment being cleaned, or both are heated to temperatures between above room temperature to below 130 ° C, preferably between 45 ° C to 70 ° C, more preferably between 50 C to 60 C.
  • Contact time depends on the area of the equipment being cleaned, the type of equipment surface being cleaned and/or contamination level of the equipment.
  • Contact method depends on the equipment being cleaned. The contact method may be soaking, spraying or any other suitable contact method, as described above. Contact time is optimized such that optimum cleaning is obtained with minimum loss in production time. According to one embodiment the contact time may be between 0.1 second to 5 hours, preferably between 30 seconds to 1 hour, more preferably 1 minute to 30 minutes.
  • the composition of the present invention is preferably used for cleaning papermaking equipment, especially papermaking equipment that contains contamination formed from use of wet strength resins in a papermaking process.
  • the equipment to be cleaned may be wet press felt, dryer fabric or any papermaking equipment used in a papermaking process that uses wet strength resins, or other papermaking machine surface. Preferably the composition is used for cleaning wet press felts or dryer fabrics.
  • composition according to the invention is preferably used for cleaning contamination caused by wet strength resin, especially when the wet strength resin is polyamide- epichlorohydrin (PAE) resin.
  • PAE polyamide- epichlorohydrin
  • Percentages of components in compositions described throughout this application are weight percentages of the components in the compositions. Weight percentages are calculated with the assumption that the components contain no impurities. Examples
  • composition A (Table 1). The composition was diluted with tap water. The other felt sample from each set was washed with tap water and was used as control for comparison.
  • the felts were placed in separate washing containers and were placed in the tergotometer. The tergotometer was run at 60°C for 30 minutes for the first washing step; pH was checked and recorded for each container. The container contents were then poured over a vacuum sieve to collect the felt samples and the loose fibers. The samples and container were rinsed with tap water and the samples were placed back in the container for the rinse cycle at the same temperature for 15 minutes; pH was checked and recorded for each container. Again, the contents of these containers were poured over a vacuum sieve to collect the felt samples and the loose fibers.
  • the mass of each felt sample was recorded pre- and post-wash.
  • the felt fiber loss was collected at the end of each wash and rinse cycle and weighed as a fiber loss percentage. This fiber loss percentage indicates how harsh the chemical treatment was for the felt. Fiber loss was partially due to the harshness of the chemical treatment and partially due to the fact the felts were used felts from mills used in wash studies and were not brand new. After accounting for fiber loss, the remaining difference in felt mass between pre- and post-wash measurements is attributed to contaminant removal and reported as such. Ideally, the chemical treatment removes the greatest amount of contaminant without causing too much fiber loss and damage to the felt. Percentage contaminant removed and fiber loss percentages are reported in Table 2 and 3, respectively and were calculated as
  • Porosity (or air permeability) test was conducted on pre- and post- wash felts using a Gurley Precision Porosity tester with a digital timer. The test was conducted with air passing through the individual felt sample. A digital timer records the length of time for a controlled volume of air to pass through the sample. The pre-wash porosity accounts for any contamination of felts, which would block the felt pores. The post- wash test indicates the porosity after targeted contaminant removal. Thus, comparing pre- and post- wash porosity is indicative of overall contaminant removal. The porosity time was recorded in Gurley seconds and was compared for pre- and post-wash. The lower the Gurley porosity seconds, the more porous the felts are. Cleaner felts should have higher porosity, thus lower Gurley porosity seconds indicate better cleaning ability. Gurley porosity seconds are reported in Table 4.
  • Results in Table 2 show that wash with 5% of Composition A removes significantly higher percentage of contaminants compared to the control.
  • Results in Table 3 show fiber loss percentage for wash with 5% of Composition A, for all types of tested felts, were very low, and were similar to that of the control.
  • Results in Table 4 show porosity of the felts increased (Gurley porosity seconds decreased) more compared to the control, by washing with 5% of Composition A.
  • Results in Table 5 show water absorption speed of the felts increased (water absorption seconds decreased) significantly compared to the control, by washing with 5% of Composition A.
  • Composition A cleans contaminants from the felts (Tables 2, 4 and 5) without appreciably damaging the felts (Table 3).
  • Example 2 Preventing wet strength resins from contaminating wet press felts.
  • Percentage weight increased, fiber loss, Gurley porosity seconds and water absorption seconds are reported in Table 6. Percentage weight increased, for felts that were placed in 10% aqueous solution of Composition A were lower compared to control felts (felts that were placed in water instead of 10% aqueous solution of Composition A). Porosity and water absorption speed of felts that were placed in 10% aqueous solution of Composition A were higher (Gurley porosity seconds and water absorption seconds lower) compare to the control. These results show Composition A prevents PAE from contaminating the felts. Fiber loss percentages for felts that were placed in 10% aqueous solution of Composition A were lower compared to the control. This shows that the Composition A does not damage the felts.

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  • Wood Science & Technology (AREA)
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Abstract

L'invention concerne des compositions et des procédés permettant de nettoyer un équipement de fabrication de papier contaminé par une résine résistante à l'humidité et/ou d'empêcher des résines résistantes à l'humidité de contaminer un équipement de fabrication de papier à l'aide des compositions. Les compositions comprennent une solution aqueuse d'un acide organique faible ; un tensioactif, de préférence un tensioactif non ionique, un catalyseur contenant des ions métalliques divalents et éventuellement un solvant contenant un éther de glycol.
PCT/FI2018/050500 2017-06-29 2018-06-26 Composition, son utilisation et procédé permettant d'éliminer et d'empêcher la contamination d'un équipement de fabrication de papier par des résines résistantes à l'humidité Ceased WO2019002682A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN201880042209.0A CN110785524B (zh) 2017-06-29 2018-06-26 除去造纸设备中的湿强度树脂污染物和防止其污染造纸设备的组合物、其用途和方法
CA3066027A CA3066027C (fr) 2017-06-29 2018-06-26 Composition, son utilisation et procede permettant d'eliminer et d'empecher la contamination d'un equipement de fabrication de papier par des resines resistantes a l'humidite
PL18740885.1T PL3645790T3 (pl) 2017-06-29 2018-06-26 Kompozycja, jej zastosowanie oraz sposób usuwania i zapobiegania zanieczyszczaniu sprzętu papierniczego żywicami zwiększającymi wytrzymałość na mokro
KR1020197037512A KR102657232B1 (ko) 2017-06-29 2018-06-26 조성물, 그 용도 및 습식 강화 수지 제거 및 제지 장비 오염 방지를 위한 방법
ES18740885T ES2932649T3 (es) 2017-06-29 2018-06-26 Composición, su uso y método para eliminar y evitar que las resinas resistentes a la humedad contaminen el equipo de fabricación de papel
RU2019144011A RU2762277C2 (ru) 2017-06-29 2018-06-26 Композиция, ее применение и способ удаления и предотвращения загрязнений бумагоделательного оборудования влагопрочными смолами
EP18740885.1A EP3645790B1 (fr) 2017-06-29 2018-06-26 Composition, son utilisation et procédé permettant d'éliminer et d'empêcher la contamination d'un équipement de fabrication de papier par des résines résistantes à l'humidité
BR112019026638-0A BR112019026638B1 (pt) 2017-06-29 2018-06-26 Composição, seu uso e método para remoção e prevenção da contaminação por resinas de resistência a úmido de equipamento de fabricação de papel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201762527027P 2017-06-29 2017-06-29
US62/527,027 2017-06-29
FI20175707 2017-08-01
FI20175707 2017-08-01

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772078A (en) * 1971-07-29 1973-11-13 Kollmorgen Photocircuits Process for the formation of real images and products produced thereby
WO1997032968A1 (fr) * 1996-03-06 1997-09-12 Colgate-Palmolive Company Compositions de detergents a cristaux liquides
WO2000006824A1 (fr) * 1998-07-28 2000-02-10 Nalco Chemical Company Procede d'elimination et de prevention de l'accumulation de contaminants dans des procedes de production de papier
US6696399B1 (en) * 2002-10-15 2004-02-24 Cleaning Systems, Inc. Cleaning composition
EP1887027A1 (fr) * 2005-04-06 2008-02-13 Sanyo Chemical Industries, Ltd. Particule de resine et dispersion de resine
US20120077725A1 (en) * 2010-09-20 2012-03-29 Xiaoru Jenny Wang Fabric care formulations and methods
JP2014130029A (ja) * 2012-12-28 2014-07-10 Neos Co Ltd 放射性物質汚染土壌の分級により発生した汚染シルトの除染方法
US20160145800A1 (en) * 2014-11-25 2016-05-26 Buckman Laboratories International, Inc. Felt Conditioner And Cleaner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772078A (en) * 1971-07-29 1973-11-13 Kollmorgen Photocircuits Process for the formation of real images and products produced thereby
WO1997032968A1 (fr) * 1996-03-06 1997-09-12 Colgate-Palmolive Company Compositions de detergents a cristaux liquides
WO2000006824A1 (fr) * 1998-07-28 2000-02-10 Nalco Chemical Company Procede d'elimination et de prevention de l'accumulation de contaminants dans des procedes de production de papier
US6696399B1 (en) * 2002-10-15 2004-02-24 Cleaning Systems, Inc. Cleaning composition
EP1887027A1 (fr) * 2005-04-06 2008-02-13 Sanyo Chemical Industries, Ltd. Particule de resine et dispersion de resine
US20120077725A1 (en) * 2010-09-20 2012-03-29 Xiaoru Jenny Wang Fabric care formulations and methods
JP2014130029A (ja) * 2012-12-28 2014-07-10 Neos Co Ltd 放射性物質汚染土壌の分級により発生した汚染シルトの除染方法
US20160145800A1 (en) * 2014-11-25 2016-05-26 Buckman Laboratories International, Inc. Felt Conditioner And Cleaner

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