EP0049405A2 - Procédé de traitement de gaze pour tamis d'impression avec au moins un agent de blanchiment - Google Patents

Procédé de traitement de gaze pour tamis d'impression avec au moins un agent de blanchiment Download PDF

Info

Publication number
EP0049405A2
EP0049405A2 EP81107406A EP81107406A EP0049405A2 EP 0049405 A2 EP0049405 A2 EP 0049405A2 EP 81107406 A EP81107406 A EP 81107406A EP 81107406 A EP81107406 A EP 81107406A EP 0049405 A2 EP0049405 A2 EP 0049405A2
Authority
EP
European Patent Office
Prior art keywords
fibers
dispersion
gauzes
stencil
solution
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
EP81107406A
Other languages
German (de)
English (en)
Other versions
EP0049405A3 (en
EP0049405B1 (fr
Inventor
Johannes Antonius Craamer
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.)
Schweizerische Seidengazefabrik AG
Original Assignee
Schweizerische Seidengazefabrik 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 Schweizerische Seidengazefabrik AG filed Critical Schweizerische Seidengazefabrik AG
Priority to AT81107406T priority Critical patent/ATE8065T1/de
Publication of EP0049405A2 publication Critical patent/EP0049405A2/fr
Publication of EP0049405A3 publication Critical patent/EP0049405A3/de
Application granted granted Critical
Publication of EP0049405B1 publication Critical patent/EP0049405B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • B41N1/247—Meshes, gauzes, woven or similar screen materials; Preparation thereof, e.g. by plasma treatment

Definitions

  • the present invention relates to a method for treating stencil gauzes and / or fibers to be used for this purpose with at least one white toner.
  • the pattern is generally transferred to the stencil.
  • the pattern can be transferred to the template in a variety of ways, currently focusing on the photochemical processes.
  • These photochemical processes usually use layers - made of emulsions - or films or combinations of layers and films. These layers usually consist of polyvinyl alcohol emulsions which have been made photosensitive with a sensitizer, for example sodium or potassium bichromate or a diazo compound.
  • the films consist, for example, of a light-sensitive gelatin layer or of a polyvinyl alcohol layer. In the layers and / or films mentioned, the light energy acting causes chemical reactions which lead to the generation of sample samples can be exploited.
  • the layers (emulsions) and films usually used generally have a high sensitivity to blue-green and blue-ultraviolet light in the range from approximately 390 to 450 nanometers. Exposure usually cures the emulsion and / or the film.
  • the photochemical processes generally have the disadvantage that the exposure time is long. For example, the exposure time can be 1 to 6 minutes per exposure. It is an object of the present invention, for example, to shorten the exposure time mentioned.
  • a process has now been found for the production of fibers equipped with at least one white toner, which is characterized in that the fibers are brought into contact with a dispersion or a solution which contains at least one white toner, said dispersion or solution acting on the fibers leaves, and then dries the treated fibers.
  • An aqueous dispersion or an aqueous solution of the white toner is preferably used.
  • a dispersion of the white toner in an organic medium or an organic solvent which contains the white toner is generally also possible.
  • the dispersion or solution additionally contain at least one emulsifier and / or at least one leveling agent.
  • at least one further auxiliary can be added to the dispersion or solution.
  • Coumarin derivatives are particularly preferably used as whiteners in the process according to the invention; 7-aminocoumarin is most preferably used.
  • Synthetic fibers made of polyester or nylon are preferably used in the process according to the invention. Fibers made of polyester are preferably used. As a rule, natural fibers are not used in the process according to the invention. However, other synthetic fibers can also be used.
  • the fibers can be finished, for example, using the conventional pull-out method or the likewise known thermal insulation method.
  • optical brighteners are applied to textile fabrics, such as, for example, woven goods, knitted fabrics, nonwovens, etc., or to unprocessed fibers which are intended for use as stencil gauzes.
  • the residence time of the fibers in the dispersion or in the solution depends, for example, on the type of fiber material. If the fiber is made of nylon, the dwell time in the exhaust process is usually 30-60 minutes; if the fiber is made of polyester, the dwell time in the exhaust process is expediently 60-90 minutes.
  • the temperature when applying the optical brightener is generally not critical.
  • the concentration of the optical brightener in the dispersion or solution can be 1 g / liter but also up to 20 g / liter or 0.1% to 2% of the weight of the goods. However, because the concentration usually depends on the structure of the optical brightener and substrate used (e.g. polyester or polyamide), both larger and lower concentrations than the ranges mentioned above can be used.
  • the pattern transfer by means of a photochemical process generally has the effect that high-energy radiation is absorbed by the applied molecules and is used as lower-energy radiation, i.e. is emitted as radiation with a longer wavelength.
  • This fluorescence emission is usually added to the normal reflection in the blue spectral range, so that the total reflection is much stronger, ie is above 100%.
  • the excited molecules absorb ultraviolet components and the energy absorbed in this way usually radiates again as blue fluorescent light.
  • the layers and / or films applied to the fibers which have been finished in accordance with the method according to the invention harden much more quickly during pattern transfer by means of a photochemical method, as a result of which the exposure time can be shortened considerably.
  • the time saved is 20 to 30%, but can also be up to 50% in certain cases.
  • great time savings are achieved, for example the fibers, which have been finished in accordance with the method according to the invention, are processed during textile printing with an "add copier” or a "step and repeat machine” which is well known to the person skilled in the art.
  • the out according to the inventive V equipped fibers are used as Schablonengazen.
  • PVA emulsion (trade name e.g. ULANO Coat 569 from Ulano)

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP81107406A 1980-10-03 1981-09-18 Procédé de traitement de gaze pour tamis d'impression avec au moins un agent de blanchiment Expired EP0049405B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81107406T ATE8065T1 (de) 1980-10-03 1981-09-18 Verfahren zur behandlung von schablonegazen mit wenigstens einem weisstoener.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7419/80 1980-10-03
CH7419/80A CH648789A5 (de) 1980-10-03 1980-10-03 Verfahren zur verkuerzung der belichtungszeit bei der photochemischen musteruebertragung auf lichtempfindliche schichten.

Publications (3)

Publication Number Publication Date
EP0049405A2 true EP0049405A2 (fr) 1982-04-14
EP0049405A3 EP0049405A3 (en) 1982-09-22
EP0049405B1 EP0049405B1 (fr) 1984-06-20

Family

ID=4324832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107406A Expired EP0049405B1 (fr) 1980-10-03 1981-09-18 Procédé de traitement de gaze pour tamis d'impression avec au moins un agent de blanchiment

Country Status (6)

Country Link
US (1) US4472457A (fr)
EP (1) EP0049405B1 (fr)
JP (1) JPS5795496A (fr)
AT (1) ATE8065T1 (fr)
CH (1) CH648789A5 (fr)
DE (1) DE3164320D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311687A1 (fr) * 1987-02-17 1989-04-19 Nihon Tokushu Orimono Co. Ltd. Tissu tisse en mailles pour cadre d'impression

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178381U (ja) * 1983-05-10 1984-11-29 エヌ・ビ−・シ−工業株式会社 スクリ−ン印刷版用布帛

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1025467A (fr) * 1949-10-05 1953-04-15 Sandoz Sa Procédé de blanchiment optique
DE963268C (de) * 1946-06-14 1957-05-02 Ciba Geigy Verfahren zum Waschen von stickstoffhaltigen, vollsynthetischen, faser- oder filmfoermigen Stoffen
US2878138A (en) * 1955-09-28 1959-03-17 Bayer Ag Method of brightening material
FR1435095A (fr) * 1965-02-22 1966-04-15 Union Gazes A Bluter L Perfectionnement aux tissus utilisés pour les pochoirs d'impression au cadre et de sérigraphie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255203A (en) * 1966-06-07 Ii chz xn
US2370874A (en) * 1942-03-16 1945-03-06 Liberty Glass Co Stencil screen and method of making the same
DE1670969A1 (de) * 1968-01-08 1971-02-25 Bayer Ag 3-[Pyrazolyl-(1)]-7-[v-triazolyl-(2)]-cumarine
CH559757A5 (fr) * 1971-09-01 1975-03-14 Ciba Geigy Ag
DE2400929A1 (de) * 1973-12-03 1975-07-24 Mcgraw Colorgraph Co Verfahren zur herstellung von drucksieben
US4286048A (en) * 1979-12-03 1981-08-25 Arthur D. Little, Inc. Photocrosslinkable compositions for screen printing stencils

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963268C (de) * 1946-06-14 1957-05-02 Ciba Geigy Verfahren zum Waschen von stickstoffhaltigen, vollsynthetischen, faser- oder filmfoermigen Stoffen
FR1025467A (fr) * 1949-10-05 1953-04-15 Sandoz Sa Procédé de blanchiment optique
US2878138A (en) * 1955-09-28 1959-03-17 Bayer Ag Method of brightening material
FR1435095A (fr) * 1965-02-22 1966-04-15 Union Gazes A Bluter L Perfectionnement aux tissus utilisés pour les pochoirs d'impression au cadre et de sérigraphie

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311687A1 (fr) * 1987-02-17 1989-04-19 Nihon Tokushu Orimono Co. Ltd. Tissu tisse en mailles pour cadre d'impression
EP0311687A4 (fr) * 1987-02-17 1989-05-30 Nihon Tokushu Orimono Co Ltd Tissu tisse en mailles pour cadre d'impression.

Also Published As

Publication number Publication date
EP0049405A3 (en) 1982-09-22
CH648789A5 (de) 1985-04-15
ATE8065T1 (de) 1984-07-15
JPS5795496A (en) 1982-06-14
US4472457A (en) 1984-09-18
EP0049405B1 (fr) 1984-06-20
DE3164320D1 (en) 1984-07-26

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