EP0059647A1 - Apparatus for treating fabrics with foam - Google Patents

Apparatus for treating fabrics with foam Download PDF

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Publication number
EP0059647A1
EP0059647A1 EP19820301085 EP82301085A EP0059647A1 EP 0059647 A1 EP0059647 A1 EP 0059647A1 EP 19820301085 EP19820301085 EP 19820301085 EP 82301085 A EP82301085 A EP 82301085A EP 0059647 A1 EP0059647 A1 EP 0059647A1
Authority
EP
European Patent Office
Prior art keywords
foam
fabric
liquid
reservoir
closed circuit
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.)
Granted
Application number
EP19820301085
Other languages
German (de)
French (fr)
Other versions
EP0059647B1 (en
Inventor
Dennis Henry Ogden
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.)
British Industrial Plastics Ltd
Original Assignee
British Industrial Plastics 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 British Industrial Plastics Ltd filed Critical British Industrial Plastics Ltd
Priority to AT82301085T priority Critical patent/ATE14761T1/en
Publication of EP0059647A1 publication Critical patent/EP0059647A1/en
Application granted granted Critical
Publication of EP0059647B1 publication Critical patent/EP0059647B1/en
Expired 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
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0088—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor
    • D06B19/0094—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor as a foam

Definitions

  • This invention relates to the treatment of textile materials such as fabrics with solutions or dispersions of dyestuffs, colouring materials, textile finishing auxiliaries such as resins, and the like.
  • textile materials such as fabrics with solutions or dispersions of dyestuffs, colouring materials, textile finishing auxiliaries such as resins, and the like.
  • textile finishing auxiliaries such as resins, and the like.
  • textile auxiliary will be used to denote all such liquid treatments.
  • Accordinq to the present invention we provide apparatus comprising a liquid reservoir for textile auxiliary solution or dispersion and a pump for re-circulating liquid from said reservoir through a closed circuit back to said reservoir, said closed circuit including valve means responsive to at least the linear speed of a fabric to be treated with foam and serving to divert liquid from the closed circuit to a foam generator wherein it is admixed with air to form a foam for application to the fabric.
  • the apparatus includes a control system for the valve means, the control system comprising an actuator for the valve means and an associated control module for the actuator responsive at least to fabric speed.
  • the control nodule is also responsive to input siqnals related to fabric width and/or fabric weight. These latter signals may be provided as pre-set, constant inputs, in which case the fabric speed may be used to effect overall, or major control of the setting of the valve means.
  • valve means must divert progressively more liquid to the foam generator as the fabric speed progressively increases, and vice-versa.
  • the foam generator itself is preferably a column supplied at one end with liquid and air under pressure and containing a medium such as glass beads to form foam from the liquid/air mixture.
  • the column just mentioned is preferably arranged to supply the foam to textile finishing apparatus through a tailpipe itself containing a foam generating medium such as a knitted wire-mesh.
  • the length of this tailpipe is preferably adjustable, for example, by making it from a plurality of discrete sections which are connectable in series.
  • a reservoir 1 contains a solution or dispersion of a textile auxiliary, 2, together with a surfactant to render it more readily foamable.
  • a surfactant to render it more readily foamable.
  • a pump 3 is provided to re-circulate the solution 2 through a closed circuit 4 including a proportionating or diverter valve 5.
  • the latter valve has an output connection 6 leading to a foam generator comprising a foaming column 8 supplied with air and liquid together at one end.
  • the column is packed with glass beads .(not shown) and its other end communicates with a tailpipe 10 which serves to connect the foam generator to textile fabric treatment apparatus 18.
  • the tailpipe 10 is packed with knitted wire mesh, 11.
  • the valve 5 is operated by a control unit comprising an actuator 13 and a control module 14. Details of the latter are not given because there are many.ways of implementing the desired control functions.
  • the module is arranged to respond to three control inputs; one of these (15) is a fabric/speed signal from the fabric treatment apparatus mentioned above.
  • the other two inputs (16 and 17) are supplied with pre-set, fixed input signals corresponding to fabric width and fabric weight. These are based on calibration of the system, for given fabrics and various values of fabric auxiliary pick-up desired. Once set up, the fabric speed signal effects overall, or major control of the rate of foam generation, through operation of the control unit.
  • the fabric treatment apparatus 18 may be a resin finishing machine, a dyeing machine or a fabric printing machine. In the latter case, separate apparatus may be provided to foam each colouring liquid applied and a common control module 14 may be used to effect control of each such apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Foam generating apparatus comprises a liquid reservoir (1) and a pump (3) for re-circulating liquid from said reservoir through a closed circuit back to said reservoir, said closed circuit including valve means (5) responsive to at least the linear speed of a fabric to be treated with foam and serving to divert liquid from the closed circuit to a foam generator (8) wherein it is admixed with air to form a foam for application to the fabric.

Description

  • This invention relates to the treatment of textile materials such as fabrics with solutions or dispersions of dyestuffs, colouring materials, textile finishing auxiliaries such as resins, and the like. In the interests of simplicity the tern "textile auxiliary" will be used to denote all such liquid treatments.
  • It is know that the application of textile auxiliaries can be more econonically and/or efficiently carried out by applying them as a foam. However, the apparatus for this purpose has hitherto been both complicated and expensive.
  • Accordinq to the present invention we provide apparatus comprising a liquid reservoir for textile auxiliary solution or dispersion and a pump for re-circulating liquid from said reservoir through a closed circuit back to said reservoir, said closed circuit including valve means responsive to at least the linear speed of a fabric to be treated with foam and serving to divert liquid from the closed circuit to a foam generator wherein it is admixed with air to form a foam for application to the fabric.
  • Preferably, the apparatus includes a control system for the valve means, the control system comprising an actuator for the valve means and an associated control module for the actuator responsive at least to fabric speed. Preferably, the control nodule is also responsive to input siqnals related to fabric width and/or fabric weight. These latter signals may be provided as pre-set, constant inputs, in which case the fabric speed may be used to effect overall, or major control of the setting of the valve means.
  • It will be appreciated that the valve means must divert progressively more liquid to the foam generator as the fabric speed progressively increases, and vice-versa.
  • The foam generator itself is preferably a column supplied at one end with liquid and air under pressure and containing a medium such as glass beads to form foam from the liquid/air mixture.
  • According to a further aspect of the invention, the column just mentioned is preferably arranged to supply the foam to textile finishing apparatus through a tailpipe itself containing a foam generating medium such as a knitted wire-mesh. The length of this tailpipe is preferably adjustable, for example, by making it from a plurality of discrete sections which are connectable in series.
  • This is particularly advantageous because it enables the liquid dwell time in foam generation to be tailored to accommodate different throuqhputs, as well as to accommodate different kinds of auxiliary solution or dispersion. This is especially relevant to the surfactant used in making up the auxiliary solution or dispersion because surfactant properties vary quite widely.
  • In order that the invention be better understood, a preferred embodiment of it will now be described by way of example with reference to the accompanying drawinq which is a schematic -illustration of one apparatus in accordance with the invention.
  • In the drawing, a reservoir 1 contains a solution or dispersion of a textile auxiliary, 2, together with a surfactant to render it more readily foamable. Other materials, such as softening agents, may also be ' present; in the case of a resin, a thermally activated catalyst will usually be also included. A pump 3 is provided to re-circulate the solution 2 through a closed circuit 4 including a proportionating or diverter valve 5. The latter valve has an output connection 6 leading to a foam generator comprising a foaming column 8 supplied with air and liquid together at one end. The column is packed with glass beads .(not shown) and its other end communicates with a tailpipe 10 which serves to connect the foam generator to textile fabric treatment apparatus 18. The tailpipe 10 is packed with knitted wire mesh, 11.
  • The valve 5 is operated by a control unit comprising an actuator 13 and a control module 14. Details of the latter are not given because there are many.ways of implementing the desired control functions. The module is arranged to respond to three control inputs; one of these (15) is a fabric/speed signal from the fabric treatment apparatus mentioned above. The other two inputs (16 and 17) are supplied with pre-set, fixed input signals corresponding to fabric width and fabric weight. These are based on calibration of the system, for given fabrics and various values of fabric auxiliary pick-up desired. Once set up, the fabric speed signal effects overall, or major control of the rate of foam generation, through operation of the control unit.
  • It will be appreciated that the fabric treatment apparatus 18 may be a resin finishing machine, a dyeing machine or a fabric printing machine. In the latter case, separate apparatus may be provided to foam each colouring liquid applied and a common control module 14 may be used to effect control of each such apparatus.

Claims (7)

1. Foam generating apparatus characterised in that it comprises a liquid reservoir and a pump for re-circulating liquid from said reservoir through a closed circuit back to said reservoir, said closed circuit including valve means responsive to at least the.linear speed of a fabric to be treated with foam and serving to divert liquid from the closed circuit to a foam generator wherein it is admixed with air to form a foam for application to the fabric.
2. Apparatus according to claim 1 further characterized by an actuator for the valve means and an associated- control module for the actuator responsive at least to fabric speed.
3. Apparatus according to claim 2 characterised in that the control module is also responsive to input signals related to fabric width and/or fabric weight.
4. Apparatus according to claim 3 characterised in that the input signals are preset, constant inputs and the fabric speed effects overall or major control of the setting of the valve means.
5. Apparatus according to any-preceding claim characterised in that the foam generator is a column supplied at one end with liquid and air under pressure and containing a medium such as glass beads to form a foam from the liquid and air mixture in passage through said medium.
6. Apparatus according to any preceding claim characterised in that the foam is supplied in textile finishing or treatmnet apparatus through a pipe containing a foam generating medium.
7. Apparatus according to claim 6 characterised in that the pipe is constructed as a plurality of discrete sections connectable in series.
EP19820301085 1981-03-04 1982-03-03 Apparatus for treating fabrics with foam Expired EP0059647B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82301085T ATE14761T1 (en) 1981-03-04 1982-03-03 DEVICE FOR TREATMENT OF FABRIC WITH FOAM.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8106868 1981-03-04
GB8106868 1981-03-04
GB8109946A GB2093738B (en) 1981-03-04 1981-03-31 Textile treatment using foams
GB8109946 1981-03-31

Publications (2)

Publication Number Publication Date
EP0059647A1 true EP0059647A1 (en) 1982-09-08
EP0059647B1 EP0059647B1 (en) 1985-08-07

Family

ID=26278649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820301085 Expired EP0059647B1 (en) 1981-03-04 1982-03-03 Apparatus for treating fabrics with foam

Country Status (3)

Country Link
EP (1) EP0059647B1 (en)
DE (1) DE3265144D1 (en)
GB (1) GB2093738B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006681A1 (en) * 1985-05-03 1986-11-20 Johannes Zimmer Method for applying a foam material
CN108890949A (en) * 2018-06-01 2018-11-27 长虹美菱股份有限公司 A kind of Intelligent Hybrid head filling system and its material feeding method for refrigerator door

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT380648B (en) * 1984-08-31 1986-06-25 Zimmer Johannes METHOD AND DEVICE FOR APPLYING FLOWABLE MEDIA

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540288A1 (en) * 1974-09-13 1976-03-25 Textilana N P Low moisture content textile web printing paste - foaming to bulk density of 200 - 600 kg per cu metre
FR2312590A1 (en) * 1975-05-24 1976-12-24 Hoechst Ag APPLICATION DEVICE FOR TREATMENT BATHS IN THE FORM OF FOAM ON TEXTILE STRIPS
DE2653108A1 (en) * 1975-05-24 1978-05-24 Hoechst Ag Constant pressure of foam in coating fountain - is maintained by pressure sensor in fountain controlling air supply to foam generator and flow to fountain

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540288A1 (en) * 1974-09-13 1976-03-25 Textilana N P Low moisture content textile web printing paste - foaming to bulk density of 200 - 600 kg per cu metre
FR2312590A1 (en) * 1975-05-24 1976-12-24 Hoechst Ag APPLICATION DEVICE FOR TREATMENT BATHS IN THE FORM OF FOAM ON TEXTILE STRIPS
DE2653108A1 (en) * 1975-05-24 1978-05-24 Hoechst Ag Constant pressure of foam in coating fountain - is maintained by pressure sensor in fountain controlling air supply to foam generator and flow to fountain

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006681A1 (en) * 1985-05-03 1986-11-20 Johannes Zimmer Method for applying a foam material
CN108890949A (en) * 2018-06-01 2018-11-27 长虹美菱股份有限公司 A kind of Intelligent Hybrid head filling system and its material feeding method for refrigerator door

Also Published As

Publication number Publication date
DE3265144D1 (en) 1985-09-12
GB2093738B (en) 1984-04-18
GB2093738A (en) 1982-09-08
EP0059647B1 (en) 1985-08-07

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