GB1565546A - Apparatus and process for the application of preparations onto sheet materials - Google Patents

Apparatus and process for the application of preparations onto sheet materials Download PDF

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Publication number
GB1565546A
GB1565546A GB40611/76A GB4061176A GB1565546A GB 1565546 A GB1565546 A GB 1565546A GB 40611/76 A GB40611/76 A GB 40611/76A GB 4061176 A GB4061176 A GB 4061176A GB 1565546 A GB1565546 A GB 1565546A
Authority
GB
United Kingdom
Prior art keywords
sheet material
nozzles
preparation
gas
spraying
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
GB40611/76A
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of GB1565546A publication Critical patent/GB1565546A/en
Expired legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/02Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe

Abstract

In the apparatus, preparations are applied by means of nozzles (1) to material webs made of cellulose and polyester fibres and their mixtures. The nozzles (1) are arranged in a housing (5) above a conveyor device (6) for the material web (2) and are directed onto the latter. In order to achieve a uniformly thick application of the preparation, the apparatus contains a device for generating a circulating air flow, which consists of a blower (3) and of guide plates and which is arranged in such a way that the air flow passes the material web (2) in the direction of the nozzle jets. <IMAGE>

Description

(54) APPARATUS AND PROCESS FOR THE APPLICATION OF PREPARATIONS ONTO SHEET MATERIALS (71) We, HOECHST AKTIENGESELLSCHAFT, a body corporate organised according to the laws of the Federal Republic of Germany, of 6230 Frankfurt/Main 80, Postfach 80 03 20, Federal Republic of Germany, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to apparatus for the application of preparations (normally liquids) onto sheet materials and to a process therefor.
In previously proposed processes, for example, as disclosed in U.S. Specification No. 3,973,902, preparations are applied to webs of fabrics as uniformly as possible by spraying a fine dispersion of the preparation.
One disadvantage of this process however, is that the cloud of droplets forming the spray can be disturbed by relatively weak ambient air currents and so be deflected from the intended path as determined by the spraying characteristic of the nozzles. This leads to the preparation being applied in a thick nonuniform layer. One method of overcoming this drawback is disclosed in German Offenlegungsschrift 2,406,831, which describes a process in which the droplets are drawn onto the web by electrostatic forces in an electric field. The use of strong electric fields, however, requires special safety measures and is not possible at all when inflammable liquids are to be applied.
The present invention provides apparatus for applying a preparation to a sheet material, which comprises a housing containing means for spraying the preparation onto the sheet material, means for transporting the sheet material past the spraying means, and means for generating a current of gas to guide onto the sheet material the preparation emitted by the spraying means, and in which there is provided means for recirculating the gas so that, in operation, the gas passes through and/or round the sheet material and is then recirculated.
By means of apparatus according to the invention, the sprayed droplets can be reliably guided onto the sheet material and the preparation can be uniformly applied, irrespective of any fluctuating currents of the surrounding atmosphere.
The spraying means, which may be situated above the path followed by the sheet material will generally comprise one or more nozzles, preferably a plurality of nozzles, arranged to direct the preparation towards the sheet material. The plurality of nozzles may be disposed transversely in relation to the direction of movement of the sheet material and, in a preferred form of the apparatus, the nozzles are arranged in a series of rows, each row extending transversely in relation to the direction of movement of the sheet material.
In order to reduce the turbulance of the gas current, means for distributing the flow of gas may be provided in the housing, behind the spraying means as viewed from the transport means. A laminar flow of gas is especially suitable for guiding the preparation.
There may be provided one or more filters for filtering the gas, preferably, arranged to filter the gas after its passage through and/or round the sheet material.
The invention further provides a process for applying a preparation to a sheet material (preferably continuously) which comprises spraying the preparation onto the sheet material in apparatus according to the invention. The gas will usually comprise air and the sheet material is generally a fabric, especially one which comprises cellulose and/ or polyester fibre. In this case, the preparation may comprise an alkali or solution thereof and/or a carrier Two forms of apparatus according to the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a side view of the first form of apparatus; Figure 2 is a top view of the apparatus shown in Figure 1; Figure 3 is a front view of the apparatus of Figure 1; Figure 4 is a side view of the second form of apparatus; and Figure 5 is a top view of the apparatus shown in Figure 4.
Referring to each form of apparatus shown in the accompanying drawings, a housing shown generally by the reference numeral 5 contains transport means 6 for a sheet or web 2. Nozzles 1 are mounted above the web and below the web there is a filter 4 for the circulating air. The circulating air is kept in motion by blowers 3. In the housing 5 there are partitioned ducts 8 in which the blowers 3 are separated from the transport means by partitions 7. In order to improve the guiding effect of the air current a laminar flow of air can be produced by an air distributor 9, mounted in the housing 5 above the nozzles 1.
Where especially dense applications of preparation are desired, several rows of nozzles can be arranged one behind the other in the direction of motion of the web, the nozzles in each row being directed at an angle with respect to those in the or each other row. In such an arrangement, for example, the second form of apparatus shown in Figures 4 and 5, the nozzles can be operated parallel to one another without mutual interference.
WHAT WE CLAIM IS: 1. Apparatus for applying a preparation to a sheet material which comprises a housing containing means for spraying the preparation onto the sheet material, means for trans porting the sheet material past the spraying means, and means for generating a current of gas to guide onto the sheet material the preparation emitted by the spraying means, and in which there is provided means for recirculating the gas so that, in operation, the gas passes through and/or round the sheet material and is then recirculated.
2. Apparatus as claimed in claim 1, wherein the spraying means is situated above the path followed by the sheet material.
3. Apparatus as claimed in claim 1 or claim 2, wherein the spraying means com prises one or more nozzles arranged to direct the preparation towards the sheet material.
4. Apparatus as claimed in claim 3, wherein the spraying means comprises a plurality of nozzles.
5. Apparatus as claimed in claim 4, wherein the nozzles are disposed transversely in relation to the direction of movement of the sheet material.
6. Apparatus as claimed in claim 5, wherein the nozzles are arranged in a series of rows, each row being transverse in relation to the direction of movement of the sheet material.
7. Apparatus as claimed in claim 6, wherein the nozzles in each row are inclined with respect to the nozzles in the or each other row.
8. Apparatus as claimed in any one of claims 1 to 7, wherein means for distributing the flow of gas is provided in the housing, said distributor being behind the spraying means as viewed from the transporting means.
9. Apparatus as claimed in any one of claims 1 to 8, which includes means for -filtering the gas.
10. Apparatus as claimed in claim 9 wherein the filter means is arranged to filter the gas after its passage through and/or past the sheet material.
11. Apparatus for applying a preparation to a sheet material, substantially as hereinbefore described with reference to, and as shown in, Figures 1 to 3 or 4 and 5 of the accompanying drawings.
12. A process for the application of a preparation to a sheet material, which com prises spraying the preparation onto the sheet material using apparatus as claimed in any one of claims 1 to 11.
13. A process as claimed in claim 12, wherein the gas comprises air.
14. A process as claimed in claim 12 or claim 13 wherein the sheet material is a fabric.
15. A process as claimed in claim 14 wherein the fabric comprises cellulose and/or polyester fibre.
16. A process as claimed in any one of claims 12 to 15, wherein the preparation comprises an alkali or solution thereof and/or a carrier.
17. A process as claimed in any one of claims 12 to 16, wherein the preparation is applied -in a continuous manner.
18. A sheet material which has been treated by a process as claimed in any one of

Claims (1)

  1. claims 12 to 17.
GB40611/76A 1975-09-30 1976-09-30 Apparatus and process for the application of preparations onto sheet materials Expired GB1565546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752543524 DE2543524A1 (en) 1975-09-30 1975-09-30 DEVICE FOR APPLYING PREPARATIONS ON TRACKS

Publications (1)

Publication Number Publication Date
GB1565546A true GB1565546A (en) 1980-04-23

Family

ID=5957806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40611/76A Expired GB1565546A (en) 1975-09-30 1976-09-30 Apparatus and process for the application of preparations onto sheet materials

Country Status (12)

Country Link
JP (1) JPS5242979A (en)
AR (1) AR208153A1 (en)
BE (1) BE846798A (en)
BR (1) BR7606449A (en)
CH (1) CH612364A5 (en)
DE (1) DE2543524A1 (en)
ES (1) ES451859A1 (en)
FR (1) FR2326237A1 (en)
GB (1) GB1565546A (en)
IT (1) IT1078788B (en)
NL (1) NL7610648A (en)
ZA (1) ZA765835B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2113797A1 (en) * 1992-06-29 1998-05-01 Hispano Mecano Electrica Sa Reinforced polyester sheet moulding material prodn. - containing unsatd. polyester glass fibres, recycled particles and other additives
CN105420961A (en) * 2015-09-30 2016-03-23 苏州大邦纺织有限公司 Mist spraying dyeing machine
CN113457881A (en) * 2021-07-06 2021-10-01 蒋欣蔓 Glass fiber cloth surface layer spraying device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2802020A1 (en) * 1978-01-18 1979-07-19 Artos Meier Windhorst Kg ARRANGEMENT FOR FIXING PRINTS WITH REACTIVE AND COUPLING DYES
DE3844437A1 (en) * 1988-12-31 1990-07-05 Lux Haus Gmbh Method and spraying cabin for the surface treatment of large-surface structural elements
IT1254440B (en) * 1992-02-12 1995-09-25 Attilio Bertoldi DEVICE FOR THE TREATMENT OF WIDE FABRICS DURING THEIR PROCESSING, IN PARTICULAR FOR THEIR WASHING

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772657A (en) * 1953-09-22 1956-12-04 Callaway Mills Co Fabric article treating apparatus
GB1059341A (en) * 1962-07-28 1967-02-15 Whitehead Chemical Company A method and apparatus for causing penetration of a substance into a porous material
FR1501885A (en) * 1966-09-07 1967-11-18 Sprayfoil Ind Corp Sprayer device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2113797A1 (en) * 1992-06-29 1998-05-01 Hispano Mecano Electrica Sa Reinforced polyester sheet moulding material prodn. - containing unsatd. polyester glass fibres, recycled particles and other additives
CN105420961A (en) * 2015-09-30 2016-03-23 苏州大邦纺织有限公司 Mist spraying dyeing machine
CN113457881A (en) * 2021-07-06 2021-10-01 蒋欣蔓 Glass fiber cloth surface layer spraying device

Also Published As

Publication number Publication date
JPS5242979A (en) 1977-04-04
FR2326237A1 (en) 1977-04-29
IT1078788B (en) 1985-05-08
ES451859A1 (en) 1977-11-01
BE846798A (en) 1977-03-30
BR7606449A (en) 1977-06-14
NL7610648A (en) 1977-04-01
AR208153A1 (en) 1976-11-30
CH612364A5 (en) 1979-07-31
DE2543524A1 (en) 1977-04-07
ZA765835B (en) 1977-09-28

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CSNS Application of which complete specification have been accepted and published, but patent is not sealed