EP0280652B1 - Procédé d'amélioration du degré de blancheur de matière textile contenant du polyester - Google Patents

Procédé d'amélioration du degré de blancheur de matière textile contenant du polyester Download PDF

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Publication number
EP0280652B1
EP0280652B1 EP88810104A EP88810104A EP0280652B1 EP 0280652 B1 EP0280652 B1 EP 0280652B1 EP 88810104 A EP88810104 A EP 88810104A EP 88810104 A EP88810104 A EP 88810104A EP 0280652 B1 EP0280652 B1 EP 0280652B1
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EP
European Patent Office
Prior art keywords
whiteness
compound
booster
polyester
stilbene
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
EP88810104A
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German (de)
English (en)
Other versions
EP0280652A1 (fr
Inventor
Heinz Dr. Hefti
Urs Dr. Lehmann
Dieter Dr. Reinehr
Jürgen Dr. Kaschig
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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Publication date
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/65—Optical bleaching or brightening with mixtures of optical brighteners

Definitions

  • the invention relates to a method for increasing the whiteness of polyester-containing textile material by combined application of optical brighteners with so-called boosters on the material.
  • Compounds that absorb short-wave UV light and transmit the absorbed energy to the brightener are referred to as boosters.
  • boosters Compounds that absorb short-wave UV light and transmit the absorbed energy to the brightener are referred to as boosters.
  • Boosters are fluorescent compounds that absorb in the range from 300 to 350 nm and fluoresce at 350 to 390 nm. The fluorescence of the booster thus lies in the absorption range of the brightener, which leads to increased activity of the brightener and, in the case of many brighteners, to an appreciable increase in the degree of whiteness of the treated polyester-containing textile material.
  • DE-A-3503136 discloses a process for increasing the degree of whiteness in optically brightened polyolefins and polystyrene in that they additionally contain a sterically hindered heterocyclic amine in addition to optical brighteners.
  • FR-A-1 601 823, FR-A-2 390 537, FR-A-2 356 761 and EP-A-0 035 694 describe methods for increasing the whiteness of polyester-containing textile material by applying mixtures of different optical brighteners.
  • the compounds which are suitable as boosters for an additional increase in whiteness in connection with a known optical brightener for polyester fibers and textile material containing polyester include some stilbene compounds, for example unsubstituted stilbene or stilbene substituted by cyan or C 1 -C 9 -alkoxycarbonyl groups, and some Heterocyclic compounds containing nitrogen and oxygen, for example 2- (diphenylyl) -5- (4-tert-butylphenyl) -1,3,4-oxidiazole, 2- (diphenylyl) benzoxazole and 2- (p-tolyl) -5 -tert.-butyl-benzoxazole.
  • the preferred booster used is 4,4'-bis (cyan) stilbene or 4,4'-bis (ethoxycarbonyl) stilbene, which can be recrystallized beforehand from a solvent, for example dimethylformamide.
  • a number of compounds known for lightening polyester-containing textile material can be used as optical brighteners for the process according to the invention, for example 2,4-dimethoxy-6- (1-pyrenyl) -1,3,5-triazine, N-methyl-4, 5-diethoxynaphthalimide, 2- (4-chlorostyryl-2-cyanophenyl) naphthotriazole and 1,4-bis (benzoxazol-2-yl) naphthalene.
  • optical brightener and booster for the method according to the invention, it was found that there are specific combinations in which the booster has a particularly activating effect on the brightener. While a booster together with a certain brightener can bring about an additional whiteness increase of up to 15 whiteness units, the same booster has little or no influence on another brightener as expected.
  • the present invention also relates to means for optically brightening polyester-containing textile material which contain an optical brightener and a compound which is fluorescent in its absorption region as a booster.
  • the preparation according to the invention can be prepared by dispersing the individual compounds in a liquid medium, e.g. Water, and then be made by combining the dispersions. But you can also disperse a mixture of the individual compounds in bulk, which is done in a conventional manner in ball mills, bead mills or the like.
  • a liquid medium e.g. Water
  • the agents according to the invention can be applied to the polyester-containing textile material by known methods, for example by the exhaust process at 90 to 140 ° C or by the padding thermal process at 160 to 220 C.
  • the application is advantageously carried out in an aqueous medium in which the compounds are in finely divided form as Suspensions, so-called microdispersions, or optionally solutions.
  • dispersants, stabilizers, wetting agents and other auxiliaries can be added during application.
  • a polyester fabric (Terylene type 540) is padded at room temperature with an aqueous liquor containing 0.5 g / l of the optical brightener of the formula 1 g / l of the compound of the formula and 1 g / l Invadin JFC 200%.
  • the squeezing effect is 70%.
  • the mixture is then dried at a temperature of 70 ° C. for 30 minutes and then heat-set at 200 ° C. for 30 seconds.
  • the polyester fabric treated in this way has a lightening effect which is 8 degrees of whiteness above the whiteness if no compound of the formula 2 is used.
  • optical brightener of the formula is used according to the same procedure as in Example 1 and the compound of formula 3 previously recrystallized from dimethylformamide gives an increase in whiteness compared to the use of the compound of formula 4 alone of 9 whiteness units.
  • optical brightener of the formula is used according to the same procedure as in Example 1 and the compound of formula 3 previously recrystallized from dimethylformamide gives a whiteness increase compared to the use of formula 5 alone of 11 whiteness units.
  • optical brightener of the formula is used according to the same procedure as in Example 1 and the compound of formula 3 previously recrystallized from dimethylformamide gives a whiteness increase compared to the use of the brightener of formula 6 alone of over 20 whiteness units.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Detergent Compositions (AREA)

Claims (7)

1. Procédé d'augmentation du degré de blanc d'un matériau textile contenant un polyester, par application d'azurants optiques, caractérisé en ce que l'on ajoute à l'azurant optique, en tant que renforçateur, un composé émettant un rayonnement de fluorescence dans le domaine d'absorption de l'azurant optique.
2. Procédé conforme à la revendication 1, caractérisé en ce que l'on ajoute, en tant que renforçateur, du stilbène ou des dérivés du stilbène.
3. Procédé conforme à la revendication 2, caractérisé en ce que l'on ajoute, en tant que renforçateur, un stilbène substitué par des groupes cyano ou (alcoxy en C1 -9 )-carbonyle.
4. Procédé conforme à la revendication 3, caractérisé en ce que l'on ajoute, en tant que renforçateur, du 4,4'-bis(cyano)-stilbène, du 4,4'-bis(éthoxycarbonyl)-stilbène, ou un composé de formule
Figure imgb0016
Figure imgb0017
ou
Figure imgb0018
5. Procédé conforme à la revendication 1, caractérisé en ce que l'on ajoute, en tant que renforçateur, des composés hétérocycliques contenant de l'azote et de l'oxygène.
6. Procédé conforme à la revendication 5, caractérisé en ce que l'on ajoute, en tant que renforçateur, du 2-(diphénylyl)-5-(4-t-butylphényl)-1,3,4-oxadiazole, du 2-(diphénylyl)-benzoxazole ou du 2-(p-tolyl)-5-t-butyl-benzoxazole.
7. Agents pour l'azurage optique d'un matériau textile contenant un polyester, caractérisé en ce qu'ils contiennent un azurant optique et, comme renforçateur, un composé émettant un rayonnement de fluorescence dans le domaine d'absorption de l'azurant optique.
EP88810104A 1987-02-26 1988-02-22 Procédé d'amélioration du degré de blancheur de matière textile contenant du polyester Expired - Lifetime EP0280652B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH74087 1987-02-26
CH740/87 1987-02-26

Publications (2)

Publication Number Publication Date
EP0280652A1 EP0280652A1 (fr) 1988-08-31
EP0280652B1 true EP0280652B1 (fr) 1992-09-16

Family

ID=4194104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810104A Expired - Lifetime EP0280652B1 (fr) 1987-02-26 1988-02-22 Procédé d'amélioration du degré de blancheur de matière textile contenant du polyester

Country Status (4)

Country Link
US (1) US4830763A (fr)
EP (1) EP0280652B1 (fr)
JP (1) JP2634422B2 (fr)
DE (1) DE3874566D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6835333B2 (en) * 2002-05-07 2004-12-28 Milliken & Company Combinations for use as toners in polyesters
CN112853526A (zh) * 2020-12-30 2021-05-28 湖北鸿鑫化工有限公司 一种提高pp扁丝白度的方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA580757A (fr) * 1959-08-04 E. Siegrist Adolf Procede pour le traitement de matieres sensibles a des rayons ultra-violets
US3555071A (en) * 1967-10-17 1971-01-12 Upjohn Co Isocyanatostilbenes
US3595801A (en) * 1967-12-29 1971-07-27 Hoechst Ag Aqueous dispersions of mixtures of benzoxazole derivatives and their use as optical brighteners
US3679669A (en) * 1970-09-23 1972-07-25 Ciba Geigy Ag Phenyl-1,3,4-oxdiazole compounds
US4217301A (en) * 1973-11-19 1980-08-12 Ciba-Geigy Corporation Cyano-substituted stilbene compounds
US3957813A (en) * 1974-07-01 1976-05-18 Eastman Kodak Company Benzoxazolyl phenyl aromatic ester compounds and their use as ultraviolet stabilizers in organic compositions
DE2629703C3 (de) * 1976-07-02 1981-07-23 Hoechst Ag, 6000 Frankfurt Aufhellermischungen und deren Verwendung
DE2721084C3 (de) * 1977-05-11 1981-02-26 Hoechst Ag, 6000 Frankfurt Mischungen von optischen Aufhellern
JPS5442479A (en) * 1977-09-12 1979-04-04 Mitsui Toatsu Chemicals Fluorecent brightening of synthetic fiber material in organic solvent
DE2929687A1 (de) * 1979-07-21 1981-02-12 Hoechst Ag Mischungen von optischen aufhellern
DE3008812A1 (de) * 1980-03-07 1981-09-24 Hoechst Ag, 6000 Frankfurt Mischungen von optischen aufhellern
DE3119992A1 (de) * 1981-05-20 1982-12-23 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von ethylenverbindungen
CH656379A5 (de) * 1981-06-12 1986-06-30 Ciba Geigy Ag Stilbenverbindungen.
DE3312164A1 (de) * 1983-04-02 1984-10-04 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von stilben-dicarbonitrilen
JPS6147176A (ja) * 1984-08-10 1986-03-07 Matsushita Electric Ind Co Ltd 高周波加熱装置

Also Published As

Publication number Publication date
US4830763A (en) 1989-05-16
JPS63227862A (ja) 1988-09-22
JP2634422B2 (ja) 1997-07-23
EP0280652A1 (fr) 1988-08-31
DE3874566D1 (de) 1992-10-22

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