US3646992A - Method for heating pressing plates of continuous flat press - Google Patents

Method for heating pressing plates of continuous flat press Download PDF

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Publication number
US3646992A
US3646992A US886525A US3646992DA US3646992A US 3646992 A US3646992 A US 3646992A US 886525 A US886525 A US 886525A US 3646992D A US3646992D A US 3646992DA US 3646992 A US3646992 A US 3646992A
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US
United States
Prior art keywords
conduit
pressure
pressing plate
steam
heating
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
Application number
US886525A
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English (en)
Inventor
Kazutomo Ishizawa
Yasunori Nagata
Junnosuke Abe
Akira Fukuoka
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.)
Kanegafuchi Spinning Co Ltd
Original Assignee
Kanegafuchi Spinning Co Ltd
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 Kanegafuchi Spinning Co Ltd filed Critical Kanegafuchi Spinning Co Ltd
Application granted granted Critical
Publication of US3646992A publication Critical patent/US3646992A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/10—Calendering, pressing, ironing, glossing or glazing textile fabrics between flat plates of a press
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C2700/00—Finishing or decoration of textile materials, except for bleaching, dyeing, printing, mercerising, washing or fulling
    • D06C2700/17—Flat presses, pressing plates or heating devices for pressing plates

Definitions

  • the present invention relates to an improved. method for heating pressing plates of continuous flat press at a temperature below 100C. by utilizing steam.
  • the paper-pressingv operation applied to high-quality worsted fabrics is inevitable for attainingvery elegant luster and good hand feeling.
  • a fairly long time is required to complete the above-mentioned paper-pressing operation and moreover, the folds of the fabric are free from the paper'- pressing operation. Therefore, in the paper-pressing operation, it is required to transfer the fabric, which has completed a first operation, to a lift table and at the same time, the insertion of the press papers are required to be changed;
  • the principal object of the present invention is to provide an improved heatingmethod of the pressing plates of the continuous flat press wherein the pressing plates are always maintained at a uniform temperature below l C. with high heating efficiency.
  • FIG. 1 is an explanatory diagram for illustrating the dropping of the temperature of the hot water supplied into a conduit formed in a pressing plate when the surface temperature of the pressing plate is maintained at a uniform, constant value
  • FIG. 2 is a schematic diagram of a heating device applied to the pressing plate of the continuous flat press, according to the present invention.
  • W flow rate ofthe circulation of the hot water kg./hr.
  • A0 difference between a temperature of the hot-water at an entrance of the conduit and that of the pressing plate.
  • the principle of the present invention is based upon a fact that it is capable of heating the pressing plate uniformly by steam, provided that a pressure in the conduit fonned in the pressing plate is properly adjusted. It is important that the capacity of the heat transmission of the steam, in other words, value of U is remarkably larger than that of the hot water.
  • FIG. 2 showing an embodiment of the device for carrying out the present invention
  • steam of comparatively low pressure is supplied to a heat medium conduit 2 formed in a pressingplate 1 from a steam supply pipe 3.
  • the steam supplied to the conduit 2 imparts heat to the pressing plate while passing through the conduit 2 so that the temperature of the pressing plate 1 becomes a predetermined level.
  • Steam pressure in the conduit 2 is indicated by a pressure gauge 4.
  • An outlet of the conduit 2 is connected to a steam trap 7 through a conduit 14 and a valve 6 mounted on the conduit 14 and further connected to an inlet of a pump 10 through a valve 8 and a pressure gauge 9.
  • a bypass conduit 11 is connected to the conduit 14 as shown in FOG. 2, and a valve 12 is mounted on the bypass conduit 11.
  • valves 5 and 6 are closed and the valve 12 is opened.
  • the pump 10 is driven so that the partial pressure of air in the conduit 2 is decreased, until the air pressure becomes a predetermined value.
  • the valve 12 is closed and the valve 5 is opened so that steam is supplied into the conduit 2 while the pump is continuously driven and the valves 6 and 8 are opened. in case the pressing plate 1 is heated at a temperature below 100 C., the inside pressure of the conduit 2 is maintained at a proper pressure below an atmospheric pressure.
  • a Nashtype water sealing pump which is capable of discharging the drain, as a decompression pump for carrying out the present invention.
  • the remaining partial pressure of air is completely removed during the discharging operation of the drain through the steam trap 7, even though the partial pressure of air still remains in the conduit 2 after completion of the first operation for decreasing the partial pressure of air.
  • the drain is discharged from the drain discharging outlet 15, while air or steam is discharged from the discharging outlet 13.
  • the heating method of the invention is applied to a decompression steam-heating method.
  • the conduit is heated uniformly by the adiabatic compression effect by the supplied steam, the temperature in the entire conduit within the pressing plate becomes uniform if the pressure in the conduit is maintained in uniform condition. Therefore, the distribution of temperature of the pressing plate becomes very uniform. Therefore, by applying the above-mentioned heating method, according to the present invention, a long pending problem with respect to the drawback of the conventional flat press, which is illustrated in the preamble of this specification, can be completely solved. Consequently, a uniform flat-pressing operation can be carried out with high efficiency for pressing the high-grade worsted fabrics and various fabrics which require the operation at a temperature below I00 C., by applying the heating method of the present invention.
  • An improved method of heating a pressing plate of a continuous flat press provided with at least one conduit formed therein for flowing a heating medium through said flat press, and provided with a steam trap having an input connected to said conduit, and of maintaining said pressing plate at a predetermined temperature below C., comprising the steps of discharging air from said conduit, supplying steam into said conduit, discharging said steam and drain liquid produced in said conduit from said conduit through said steam trap while maintaining the inside pressure of said conduit at a predetermined pressure below atmospheric pressure, and decreasing the pressure at an output of said steam trap to a pressure lower than said conduit pressure by at least 0.1 kg./cm. thereby maintaining said pressing plate at a uniform predetermined temperature.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
US886525A 1968-12-29 1969-12-19 Method for heating pressing plates of continuous flat press Expired - Lifetime US3646992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43096481A JPS4949232B1 (enExample) 1968-12-29 1968-12-29

Publications (1)

Publication Number Publication Date
US3646992A true US3646992A (en) 1972-03-07

Family

ID=14166232

Family Applications (2)

Application Number Title Priority Date Filing Date
US886525A Expired - Lifetime US3646992A (en) 1968-12-29 1969-12-19 Method for heating pressing plates of continuous flat press
US886513A Expired - Lifetime US3609891A (en) 1968-12-29 1969-12-19 Method and apparatus for pressing of textile fabric continuously

Family Applications After (1)

Application Number Title Priority Date Filing Date
US886513A Expired - Lifetime US3609891A (en) 1968-12-29 1969-12-19 Method and apparatus for pressing of textile fabric continuously

Country Status (7)

Country Link
US (2) US3646992A (enExample)
JP (1) JPS4949232B1 (enExample)
CH (1) CH497593A (enExample)
DE (1) DE1964172A1 (enExample)
FR (1) FR2027290A1 (enExample)
GB (1) GB1256159A (enExample)
NL (1) NL141255B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023481A (en) * 1975-09-17 1977-05-17 Molins Machine Company, Inc. Double facer platen
US4151874A (en) * 1977-05-23 1979-05-01 Sumitomo Metal Industries Limited Heat exchanger for flue gas
US5209284A (en) * 1991-04-15 1993-05-11 Tlv Company, Limited Reduced pressure heat treating device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291484A (en) * 1968-12-29 1972-10-04 Kanegafuchi Spinning Co Ltd Method for controlling the operating temperature of a continuous flat press
US3991449A (en) * 1971-06-09 1976-11-16 Kanegafuchi Boseki Kabushiki Kaisha Process for finishing textured knitted fabrics
DE8403733U1 (de) * 1984-02-08 1984-05-24 Erhardt & Leimer GmbH, 8900 Augsburg Ausstreif- und buegelvorrichtung
ITMI20071571A1 (it) * 2007-07-31 2009-02-01 Maria Francesca Marchesi Macchinario e metodo di compattazione di nastri

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847573A (en) * 1930-03-12 1932-03-01 Commercial Iron Works Platen for presses with heating coils
US3525098A (en) * 1965-06-15 1970-08-18 Thermovox Gmbh Kunstsfoffmasch Process and device for heating and/or cooling moulds

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1847573A (en) * 1930-03-12 1932-03-01 Commercial Iron Works Platen for presses with heating coils
US3525098A (en) * 1965-06-15 1970-08-18 Thermovox Gmbh Kunstsfoffmasch Process and device for heating and/or cooling moulds

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023481A (en) * 1975-09-17 1977-05-17 Molins Machine Company, Inc. Double facer platen
US4151874A (en) * 1977-05-23 1979-05-01 Sumitomo Metal Industries Limited Heat exchanger for flue gas
US5209284A (en) * 1991-04-15 1993-05-11 Tlv Company, Limited Reduced pressure heat treating device

Also Published As

Publication number Publication date
GB1256159A (en) 1971-12-08
JPS4949232B1 (enExample) 1974-12-26
FR2027290A1 (enExample) 1970-09-25
NL6919480A (enExample) 1970-07-01
DE1964172A1 (de) 1970-07-09
NL141255B (nl) 1974-02-15
CH497593A (de) 1970-10-15
US3609891A (en) 1971-10-05

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