US3809604A - Process for forming a fluffed fibrous pulp batt - Google Patents
Process for forming a fluffed fibrous pulp batt Download PDFInfo
- Publication number
- US3809604A US3809604A US00277280A US27728072A US3809604A US 3809604 A US3809604 A US 3809604A US 00277280 A US00277280 A US 00277280A US 27728072 A US27728072 A US 27728072A US 3809604 A US3809604 A US 3809604A
- Authority
- US
- United States
- Prior art keywords
- fibers
- batt
- pulp
- fluffed
- kinked
- 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.)
- Expired - Lifetime
Links
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
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/26—Special paper or cardboard manufactured by dry method; Apparatus or processes for forming webs by dry method from mainly short-fibre or particle material, e.g. paper pulp
-
- 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
- D21C9/001—Modification of pulp properties
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
Definitions
- the process includes the continuous steps of treating of the wet pulp to effect kinking and interlocking of the fibers, forming the fibers into a wet pressed pulp sheet, drying, mechanically fiberizing the sheet and air-laying the debonded kinked fibers to form a fluffed pulp batt with improved strength and integrity due to the kinked and interlocked fiber formation.
- the process also includes the steps of producing a dilute, aqueous slurry of the kinked and interlocked fibers and incorporating in the slurry a cationic debonding agent, so that minimum breakage of the fibers will result during the mechanical fiberizing step due to the debonding effect of that cationic debonding agent, and a fiufied pulp batt will be produced with minimum fiber breakage therein.
- This invention relates to a process for improving a flutfed fibrous pulp batt adapted for use in sanitary products or the like wherein the fluffed fibrous pulp batt has markedly improved strength and integrity with longer, stronger and more uniform fibers for producing greater loft, moisture absoption and stength in the batt.
- flutfed fibrous pulp batts have been utilized as the core material for providing absorbency and other characteristics in the sanitary products.
- These fiufied fibrous pulp batts are normally produced by manufacturing a wet pressed pulp sheet formed by conventional pulp and paper making processes and then mechanically fiberizing the wet pressed pulp sheet into individual fibers and airlaying the individual fibers to form a fiutfed fibrous pulp batt which may be cut and placed into the center or core of the sanitary products.
- the fiufied fibrous pulp batt must have the properties of strength and integrity inasmuch as the batt is utilized as the core or center of the sanitary products and must therefore provide strength and integrity to the overall sanitary products. Also, it is desirable to have minimum fiber breakage from the mechanical fiberizing operation so that the3, air-layed fluifed fibrous pulp batt will provide improved moisture absorption characteristics. Also, it is desirable for the wet pressed pulp sheet to be substantially completely fiberized to eliminate undesirable residual unfiberized sheet particles and minimize fiber dust so as to provide longer, stronger and more uniform fibers for producing greater loft and strength in the batt.
- the above object may be accomplished by providing a process comprising the continuous steps of treating wet pulp fibers for effecting kinking and interlocking of the fibers, forming the fibers into a wet pressed pulp sheet, drying, mechanically fiberizing the sheet and air-laying the debonded kinked fibers to form a fluffed pulp batt with improved strength and integrity due to the kinked and interlocked fiber formation.
- the process also includes the steps of producing a dilute, aqueous slurry of the kinked and interlocked fibers and incorporating in the slurry a cationic debonding agent, so that minimum breakage of the fibers will result during the mechanical fiberizing step due to the debonding effect of the cationic nature and a fiufl ed pulp batt will be produced with minimum fiber breakage therein.
- the fibers produced are essentially non-kinked. That is, they exist as straight fibers in the wood and after going through cooking and bleaching process, are delivered to the paper making machine in essentially an unkinked form. Then, when they are formed into a sheet and dried, they are held in place by the structure of the sheet and essentially remain unkinked fibers in the dry sheet. Then, as in the case of fiberizing pulp, they are broken apart by mechanical means, the individual fibers obtained are still essentially unkinked.
- the air-laid batt formed of these fibers has relatively little strength and integrity.
- the raw material that is the fibers to be pulped, and otherwise processed in accordance with this invention, may be any one or more of the various types of cellulosic materials commercially used in paper and paperboard manufacture.
- Illustrative examples are wood, cotton, linters, flax, hemp, ramie, bagasse, esparto fiber pulps, etc.
- Wet pulp fibers, of the above type, are treated for effecting kinking and interlocking of the fibers.
- This treating step for effecting kinking and interlocking of the fibers may be effected by the use of a mechanical kinking device, such as described in Hill et al. US. Pat. 2,516,384, issued July 25, 1950.
- the device of this patent is one example of a suitable device for treating wet pulp fibers for effecting kinking and interlocking of the fibers and any device that mechanically kinks wet fibers may be utilized within the context of this invention.
- kinking operation may include a separate dewatering step such as a screw press, or apparatus may be used that both dewaters and works the fibers into kinks with one operation.
- a separate dewatering step such as a screw press
- apparatus may be used that both dewaters and works the fibers into kinks with one operation.
- Such a combination action is produced in a Curlator" machine and is described in the section entitled The Curlator, pages 258-261, Pulp and Paper Manufacture, volume 2, 1st Edition, 2nd Impression published by McGraw-Hill Book Company, Inc. in 1951.
- a dilute, aqueous slurry of the kinked and interlocked fibers is produced, a cationic debonding agent is incorporated into the slurry and the slurry is formed into a wet pressed pulp sheet and dried.
- Suitable cationic debonding agents are disclosed in Hervey and George U.S. Pats. Re. 26,939, issued Aug. 18, 1970; 3,554,862, issued Jan. 12, 1971; and 3,554,863,
- the I v mechanical fiberizing is performed with a/minimuln, of, fiber breakage due to the debonding etfect of 'h agent.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
Description
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00277280A US3809604A (en) | 1972-08-02 | 1972-08-02 | Process for forming a fluffed fibrous pulp batt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00277280A US3809604A (en) | 1972-08-02 | 1972-08-02 | Process for forming a fluffed fibrous pulp batt |
Publications (1)
Publication Number | Publication Date |
---|---|
US3809604A true US3809604A (en) | 1974-05-07 |
Family
ID=23060175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00277280A Expired - Lifetime US3809604A (en) | 1972-08-02 | 1972-08-02 | Process for forming a fluffed fibrous pulp batt |
Country Status (1)
Country | Link |
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US (1) | US3809604A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4036679A (en) * | 1975-12-29 | 1977-07-19 | Crown Zellerbach Corporation | Process for producing convoluted, fiberized, cellulose fibers and sheet products therefrom |
EP0094842A1 (en) * | 1982-05-19 | 1983-11-23 | Scott Paper Company | Absorbent dry-formed fibrous web |
WO1986002116A1 (en) * | 1984-10-01 | 1986-04-10 | Dalkiaer Peter | A process for manufacturing a liquid absorbing pad, in particular for use in soft hygiene articles and sanitary products |
US4634621A (en) * | 1984-05-17 | 1987-01-06 | The James River Corporation | Scrim reinforced, cloth-like composite laminate and a method of making |
US4636418A (en) * | 1984-05-17 | 1987-01-13 | James River Corporation | Cloth-like composite laminate and a method of making |
US4637949A (en) * | 1984-07-03 | 1987-01-20 | James River Corporation | Scrim reinforced, flat cloth-like composite laminate and a method of making |
US4976819A (en) * | 1988-04-28 | 1990-12-11 | Potlatch Corporation | Pulp treatment methods |
US5501768A (en) * | 1992-04-17 | 1996-03-26 | Kimberly-Clark Corporation | Method of treating papermaking fibers for making tissue |
US5749863A (en) * | 1994-03-18 | 1998-05-12 | The Procter & Gamble Company | Fluid acquisition and distribution member for absorbent core |
US5766159A (en) * | 1995-07-06 | 1998-06-16 | International Paper Company | Personal hygiene articles for absorbing fluids |
US5858172A (en) * | 1996-10-10 | 1999-01-12 | Rayonier Inc. | Method of softening pulp and pulp products produced by same |
US5873979A (en) * | 1994-03-18 | 1999-02-23 | The Procter & Gamble Company | Preparing individualized polycarboxylic acid crosslinked cellulosic fibers |
US6059924A (en) * | 1998-01-02 | 2000-05-09 | Georgia-Pacific Corporation | Fluffed pulp and method of production |
US6310268B1 (en) | 1999-09-29 | 2001-10-30 | Rayonier Products And Financial Services Company | Non-ionic plasticizer additives for wood pulps and absorbent cores |
US20030070776A1 (en) * | 1995-07-17 | 2003-04-17 | Rayonier Inc. | Wet-laid absorbent pulp sheet suitable for immediate conversion into an absorbent product |
US20060118258A1 (en) * | 2004-12-02 | 2006-06-08 | Chmielewski Harry J | Plasticizing formulation for fluff pulp and plasticized fluff pulp products made therefrom |
US7919667B1 (en) | 1994-01-21 | 2011-04-05 | Rayonier Trs Holdings Inc. | Absorbent products and methods of preparation thereof |
US20120097351A1 (en) * | 2010-01-06 | 2012-04-26 | Sustainable Health Enterprises (She) | Highly absorbent and retentive fiber material |
US10214858B2 (en) | 2017-04-13 | 2019-02-26 | Rayonier Performance Fibers, Llc | Cellulosic material with antimicrobial and defiberization properties |
-
1972
- 1972-08-02 US US00277280A patent/US3809604A/en not_active Expired - Lifetime
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4036679A (en) * | 1975-12-29 | 1977-07-19 | Crown Zellerbach Corporation | Process for producing convoluted, fiberized, cellulose fibers and sheet products therefrom |
EP0094842A1 (en) * | 1982-05-19 | 1983-11-23 | Scott Paper Company | Absorbent dry-formed fibrous web |
US4634621A (en) * | 1984-05-17 | 1987-01-06 | The James River Corporation | Scrim reinforced, cloth-like composite laminate and a method of making |
US4636418A (en) * | 1984-05-17 | 1987-01-13 | James River Corporation | Cloth-like composite laminate and a method of making |
US4637949A (en) * | 1984-07-03 | 1987-01-20 | James River Corporation | Scrim reinforced, flat cloth-like composite laminate and a method of making |
AU567261B2 (en) * | 1984-10-01 | 1987-11-12 | Dalkiaer, P. | A process for manufacturing a liquid absorbing pad, in particular for use in soft hygiene articles and sanitary products |
WO1986002116A1 (en) * | 1984-10-01 | 1986-04-10 | Dalkiaer Peter | A process for manufacturing a liquid absorbing pad, in particular for use in soft hygiene articles and sanitary products |
US4976819A (en) * | 1988-04-28 | 1990-12-11 | Potlatch Corporation | Pulp treatment methods |
US5501768A (en) * | 1992-04-17 | 1996-03-26 | Kimberly-Clark Corporation | Method of treating papermaking fibers for making tissue |
US7919667B1 (en) | 1994-01-21 | 2011-04-05 | Rayonier Trs Holdings Inc. | Absorbent products and methods of preparation thereof |
US8497410B2 (en) | 1994-01-21 | 2013-07-30 | Rayonier Trs Holdings Inc. | Method for making absorbent products |
US8247641B2 (en) | 1994-01-21 | 2012-08-21 | Rayonier Trs Holdings Inc. | Absorbent products and methods of preparation thereof |
US20110209839A1 (en) * | 1994-01-21 | 2011-09-01 | Phyllis Leithem | Method for making absorbent products |
US5749863A (en) * | 1994-03-18 | 1998-05-12 | The Procter & Gamble Company | Fluid acquisition and distribution member for absorbent core |
US5873979A (en) * | 1994-03-18 | 1999-02-23 | The Procter & Gamble Company | Preparing individualized polycarboxylic acid crosslinked cellulosic fibers |
US6063982A (en) * | 1995-07-06 | 2000-05-16 | International Paper Company (From Thomas L. Wiesemann And John J. Shoemaker Jr.) | Personal hygiene articles for absorbing fluids |
US5766159A (en) * | 1995-07-06 | 1998-06-16 | International Paper Company | Personal hygiene articles for absorbing fluids |
US20030070776A1 (en) * | 1995-07-17 | 2003-04-17 | Rayonier Inc. | Wet-laid absorbent pulp sheet suitable for immediate conversion into an absorbent product |
US5858172A (en) * | 1996-10-10 | 1999-01-12 | Rayonier Inc. | Method of softening pulp and pulp products produced by same |
US6059924A (en) * | 1998-01-02 | 2000-05-09 | Georgia-Pacific Corporation | Fluffed pulp and method of production |
US6310268B1 (en) | 1999-09-29 | 2001-10-30 | Rayonier Products And Financial Services Company | Non-ionic plasticizer additives for wood pulps and absorbent cores |
US20060118258A1 (en) * | 2004-12-02 | 2006-06-08 | Chmielewski Harry J | Plasticizing formulation for fluff pulp and plasticized fluff pulp products made therefrom |
US7854822B2 (en) | 2004-12-02 | 2010-12-21 | Rayonier Trs Holdings Inc. | Plasticizing formulation for fluff pulp and plasticized fluff pulp products made therefrom |
US20120097351A1 (en) * | 2010-01-06 | 2012-04-26 | Sustainable Health Enterprises (She) | Highly absorbent and retentive fiber material |
US8936697B2 (en) * | 2010-01-06 | 2015-01-20 | Sustainable Health Enterprises | Highly absorbent and retentive fiber material |
US20150152597A1 (en) * | 2010-01-06 | 2015-06-04 | Sustainable Health Enterprises (She) | Highly absorbent and retentive fiber material |
US9365972B2 (en) * | 2010-01-06 | 2016-06-14 | Sustainable Health Enterprises (She) | Highly absorbent and retentive fiber material |
US10214858B2 (en) | 2017-04-13 | 2019-02-26 | Rayonier Performance Fibers, Llc | Cellulosic material with antimicrobial and defiberization properties |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GEORGIA PACIFIC CORPORATION, 133 PEACHTREE STREET, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:RIEGELTEXTILE CORPORATION, A CORP. OF DE.;REEL/FRAME:004474/0616 Effective date: 19850930 |
|
AS | Assignment |
Owner name: POPE & TALBOT, WIS., INC., 1200 FOREST ST., EAU CL Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GEORGIA-PACIFIC CORPORATION;REEL/FRAME:004929/0715 Effective date: 19880801 Owner name: POPE & TALBOT, WIS., INC., A CORP. OF DE, WISCONSI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GEORGIA-PACIFIC CORPORATION;REEL/FRAME:004929/0715 Effective date: 19880801 |