GB1374965A - Porous coating web material and method for its manufacture - Google Patents

Porous coating web material and method for its manufacture

Info

Publication number
GB1374965A
GB1374965A GB2425773A GB2425773A GB1374965A GB 1374965 A GB1374965 A GB 1374965A GB 2425773 A GB2425773 A GB 2425773A GB 2425773 A GB2425773 A GB 2425773A GB 1374965 A GB1374965 A GB 1374965A
Authority
GB
United Kingdom
Prior art keywords
web
drying
fibres
coating
passing
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
Application number
GB2425773A
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.)
Dexter Corp
Original Assignee
Dexter Corp
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 Dexter Corp filed Critical Dexter Corp
Publication of GB1374965A publication Critical patent/GB1374965A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders

Landscapes

  • Paper (AREA)

Abstract

1374965 Paper DEXTER CORP 22 May 1973 [22 May 1972] 24257/73 Heading D2B [Also in Division F4] A wet fibrous highly porous web is placed in intimate, full surface contact with a permeable support and held in position for passing drying gas therethrough to dry the web to stabilization whereupon the restrainment is removed, the web having a densometer value of less than lsu/100 ml measured by TAPPI test method T460 or -68. The web is base stock material e.g. stencil tissue, paper webs for casing, tape, &c., and comprises long unhydrated natural fibres from a highly dilute aqueous suspension or dispersion formed into a lightweight web on a papermaking machine e.g. an inclined wire type. The fibres are vegetable and of the Musa family e.g. abaca or Manila hemp 4 to 7mm long, cylindrical and less than 30 microns in diam. These may have added thereto, or be replaced by other naturral fibres e.g. jute, caroa, sisal, various wood pulps such as bleached or unbleached kraft, or synthetic fibres e.g. rayon, nylon, polyesters, vinyl copolymers &c. After dispersion, the web is at least 65% of water by weight. Drying is carried out using a foraminous carrier and a continuous flow of gas at preferably 200 to 450‹F forcing the web onto the carrier and passing through the web. Preferably a vacuum may exist under the carrier to aid web restraint. The drying may also be used for rewet webs having 50% of water by weight. After drying, the web is stabilized at 8% of water by weight, or less, and is coated after passing through guide rolls, e.g. by roller coating, fountain coating, or spray coating, a reverse coating roll and bar succeeding the coating operation to remove excess. The web is passed through a tunnel oven and is dried in a stream of hot air.
GB2425773A 1972-05-22 1973-05-22 Porous coating web material and method for its manufacture Expired GB1374965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00255528A US3822182A (en) 1972-05-22 1972-05-22 Drying of fibrous,porous coating base wet material by percolation of hot gas therethrough

Publications (1)

Publication Number Publication Date
GB1374965A true GB1374965A (en) 1974-11-20

Family

ID=22968739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2425773A Expired GB1374965A (en) 1972-05-22 1973-05-22 Porous coating web material and method for its manufacture

Country Status (7)

Country Link
US (1) US3822182A (en)
JP (1) JPS4941610A (en)
CA (1) CA974104A (en)
DE (1) DE2325649C3 (en)
FR (1) FR2185722B1 (en)
GB (1) GB1374965A (en)
SE (1) SE389142B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507470Y1 (en) * 1968-07-18 1975-03-05
US4473440A (en) * 1982-09-24 1984-09-25 Johnson & Johnson Inc. Calendered peat moss board
JPH0760689B2 (en) * 1989-11-08 1995-06-28 松下電器産業株式会社 Thermal battery
US6149767A (en) * 1997-10-31 2000-11-21 Kimberly-Clark Worldwide, Inc. Method for making soft tissue
US6143135A (en) 1996-05-14 2000-11-07 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web
US6083346A (en) * 1996-05-14 2000-07-04 Kimberly-Clark Worldwide, Inc. Method of dewatering wet web using an integrally sealed air press
US6096169A (en) * 1996-05-14 2000-08-01 Kimberly-Clark Worldwide, Inc. Method for making cellulosic web with reduced energy input
US6187137B1 (en) 1997-10-31 2001-02-13 Kimberly-Clark Worldwide, Inc. Method of producing low density resilient webs
US6197154B1 (en) 1997-10-31 2001-03-06 Kimberly-Clark Worldwide, Inc. Low density resilient webs and methods of making such webs
US6306257B1 (en) 1998-06-17 2001-10-23 Kimberly-Clark Worldwide, Inc. Air press for dewatering a wet web
US6280573B1 (en) 1998-08-12 2001-08-28 Kimberly-Clark Worldwide, Inc. Leakage control system for treatment of moving webs
US6318727B1 (en) 1999-11-05 2001-11-20 Kimberly-Clark Worldwide, Inc. Apparatus for maintaining a fluid seal with a moving substrate
US8129297B2 (en) * 2002-07-29 2012-03-06 E. I. Du Pont De Nemours And Company Method and apparatus for heating nonwoven webs
US7468117B2 (en) * 2005-04-29 2008-12-23 Kimberly-Clark Worldwide, Inc. Method of transferring a wet tissue web to a three-dimensional fabric
CN103320965A (en) * 2013-06-04 2013-09-25 揭阳市洁新纸业股份有限公司 Hot-air-penetrated leather paper forming method and leather paper produced through same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303576A (en) * 1965-05-28 1967-02-14 Procter & Gamble Apparatus for drying porous paper

Also Published As

Publication number Publication date
DE2325649A1 (en) 1973-12-06
US3822182A (en) 1974-07-02
JPS4941610A (en) 1974-04-19
DE2325649B2 (en) 1979-01-25
FR2185722A1 (en) 1974-01-04
FR2185722B1 (en) 1977-02-11
CA974104A (en) 1975-09-09
DE2325649C3 (en) 1979-09-20
SE389142B (en) 1976-10-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee