EP0090351A2 - Agent de désencollage liquide oxydant et procédé pour le désencollage oxydant - Google Patents

Agent de désencollage liquide oxydant et procédé pour le désencollage oxydant Download PDF

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Publication number
EP0090351A2
EP0090351A2 EP83102909A EP83102909A EP0090351A2 EP 0090351 A2 EP0090351 A2 EP 0090351A2 EP 83102909 A EP83102909 A EP 83102909A EP 83102909 A EP83102909 A EP 83102909A EP 0090351 A2 EP0090351 A2 EP 0090351A2
Authority
EP
European Patent Office
Prior art keywords
desizing
persulfate
oxidative
desizing agent
sodium
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
EP83102909A
Other languages
German (de)
English (en)
Other versions
EP0090351B1 (fr
EP0090351A3 (en
Inventor
Klaus Adrian
Günter Rösch
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
Priority to AT83102909T priority Critical patent/ATE27192T1/de
Publication of EP0090351A2 publication Critical patent/EP0090351A2/fr
Publication of EP0090351A3 publication Critical patent/EP0090351A3/de
Application granted granted Critical
Publication of EP0090351B1 publication Critical patent/EP0090351B1/fr
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
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
    • D06L1/14—De-sizing

Definitions

  • persulfates for the oxidative desizing of fabrics made of cellulose fibers and their blends with synthetic fibers, since persulfate is a starch such as e.g. Potato starch, rice starch, maize starch and tapioca, which are used to size fabrics, break down excellently in the presence of alkali.
  • a disadvantage of desizing with persulfates is that damage to the cellulosic fibers can easily occur, which is expressed in a sharp drop in the average degree of polymerization.
  • the invention relates to a new oxidative desizing agent consisting of 5 to 20% by weight sodium or ammonium persulfate, potassium, sodium, ammonium or calcium peroxodiphosphate, 20 to 50% by weight of one or more surfactants from the group C 8 -C 20- sec.alkanesulfonates, C 4 -C 12 alkylphenol oxethylates with 6-12 units of ethylene oxide and C 10 -C 18 fatty alkoxethylates with 3 to 8 units of ethylene oxide and water corresponding to the balance to 100%.
  • the groups of surfactants mentioned above can be taken alone or in combination with one another. Mixtures of an alkanesulfonate and one of the two nonionic surfactants in a weight ratio of 1: 6 or 6: 1 are preferred.
  • the desizing agent according to the invention is obtained by dissolving the persulfate or peroxodiphosphate in the surfactant or surfactants at about 50 ° C. for 1-2 hours, allowing it to cool and then diluting it with the required amount of water.
  • This surfactant heel sulfate or peroxodiphosphate mixture is suitable for the oxidative desizing of fabrics which contain cellulose fibers alone or in a mixture with synthetic fibers.
  • the fabric is impregnated with an aqueous solution of this desizing agent with the simultaneous addition of alkali, preferably sodium hydroxide solution.
  • alkali preferably sodium hydroxide solution.
  • the material impregnated in this way is brought to a moisture content of approximately 100% by squeezing and subsequently treated at 20-160 ° C. for a period of between 30 seconds and 24 hours.
  • the length of the treatment time depends on the respective process-specific temperature and type of dwelling unit.
  • the content of the desizing agent described above in the aqueous liquor is 0.5 to 3, preferably 0.8 to 2% by weight, assuming a squeezing effect of 100%.
  • the amount of alkali to add is chosen as usual so that the pH of the liquor is always above 10. This generally requires 0.1 to 10, preferably 0.3 to 4,% by weight of solid sodium hydroxide.
  • the fabric is expediently washed out with hot water at approx. 85'- 95 ° C for 10 - 60 seconds and then rinsed cold.
  • alkali and detergent are expediently added to the wash water.
  • This desizing process can also be combined with a conventional bleaching process.
  • the fabric is impregnated with an aqueous liquor which, in addition to the desizing agent and alkali in the amount and composition specified above, also contains 30 to 60 ml of H 2 O 2 (35%) in one liter of liquor and sodium silicate as stabilizer.
  • the impregnated fabric is again squeezed to approx. 100% and stored for 6 to 24 hours at room temperature or briefly steamed at approx. 100%.
  • the fabric is then washed out, with alkali and detergent being added to the wash water to improve the size degradation.
  • the advantage of the desizing agent according to the invention is that it is liquid and can therefore be metered easily. It is also very stable in storage and remains stable for up to 6 months at 30 ° C.
  • the amount of per-compound required for desizing can be reduced to approximately 25% of the amount of per-compound that would be necessary for desizing alone with a per-compound. This reduction results in a substantial reduction in fiber damage.
  • the fer compound and the surfactant are not added separately to the impregnation liquor, but first the mixture prepared from the ferrous compound and surfactant and this mixture is then added to the liquor.
  • Cotton nettle sized with starch was impregnated with a solution of the following composition:
  • the impregnated material is squeezed to 100% residual moisture content and treated with steam on a steamer at 103 - 105 ° C. The goods are then washed free of alkali with hot water.
  • the goods treated in this way have a whiteness of 66.7%.
  • the degree of desizing measured according to the violet scale TEGEWA, is 8 - 9.
  • the average degree of polymerization (DP) of the treated material is 2550.
  • Cotton fabric as in Example 1 is impregnated with a solution of the following composition:
  • the impregnated material is squeezed to 100% residual moisture content, wound up and rests in a steam atmosphere with 100% relative humidity at 95 ° C for 1 hour. The material is then treated as in Example 1.
  • the goods treated in this way have a whiteness of 67.2%.
  • the degree of desizing, measured according to the violet scale TEGEWA, is 8 - 9.
  • the DP value of the treated material is 2500.
  • Cotton nettle as in Example 1, is impregnated with a solution of the following composition:
  • the impregnated material is squeezed to a residual moisture content of 100%, wrapped on a pillow and wrapped with plastic wrap to prevent it from drying out.
  • the lump is then left for 16-20 hours at room temperature.
  • the goods are then washed out in the first wash baths with the addition of alkali.
  • the goods treated in this way have a whiteness of 85%.
  • the DP value of the treated material is 2450.
  • Cotton nettle as in Example 1 is impregnated with a solution of the following composition:
  • the impregnated material is squeezed to a residual moisture content of 100% and treated with steam on a steamer at 100 - 102 ° C.
  • the goods are then washed out with the addition of alkali in the first wash baths.
  • the goods treated in this way have a whiteness of 84%.
  • the DP value of the treated material is 2400.
  • Cotton nettle sized with starch was impregnated with a solution of the following composition:
  • the material impregnated in this way is squeezed to a residual moisture content of 100% and treated with steam on a steamer at 103-105 ° C. The goods must then be washed free of alkali.
  • the goods treated in this way have a whiteness of 68.6%.
  • the degree of desizing, measured according to the violet scale TEGEWA, is 8.
  • the average degree of polymerization (DP) of the treated material is 2400.
  • Cotton nettle as in the previous example is impregnated with a solution of the following composition: Rest of water
  • the impregnated material is squeezed to a residual moisture content of 100%, wound on a pillow and wrapped with plastic wrap to prevent it from drying out.
  • the lump is then left for 16-20 hours at room temperature.
  • the goods are then washed out with the addition of alkali in the first wash baths.
  • the goods treated in this way have a whiteness of 84%.
  • the DP value of the treated material is 2300.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Detergent Compositions (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Paints Or Removers (AREA)
  • Removal Of Specific Substances (AREA)
EP83102909A 1982-03-30 1983-03-24 Agent de désencollage liquide oxydant et procédé pour le désencollage oxydant Expired EP0090351B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83102909T ATE27192T1 (de) 1982-03-30 1983-03-24 Fluessiges oxidatives entschlichtungsmittel und verfahren zum oxidativen entschlichten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823211677 DE3211677A1 (de) 1982-03-30 1982-03-30 Fluessiges oxidatives entschlichtungsmittel und verfahren zum oxidativen entschlichten
DE3211677 1982-03-30

Publications (3)

Publication Number Publication Date
EP0090351A2 true EP0090351A2 (fr) 1983-10-05
EP0090351A3 EP0090351A3 (en) 1985-05-15
EP0090351B1 EP0090351B1 (fr) 1987-05-13

Family

ID=6159703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102909A Expired EP0090351B1 (fr) 1982-03-30 1983-03-24 Agent de désencollage liquide oxydant et procédé pour le désencollage oxydant

Country Status (10)

Country Link
US (1) US4478737A (fr)
EP (1) EP0090351B1 (fr)
JP (1) JPS58174675A (fr)
KR (1) KR900007089B1 (fr)
AR (1) AR230299A1 (fr)
AT (1) ATE27192T1 (fr)
BR (1) BR8301618A (fr)
CA (1) CA1189657A (fr)
DE (2) DE3211677A1 (fr)
ZA (1) ZA832228B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360743A1 (fr) * 1988-09-19 1990-03-28 Ciba-Geigy Ag Mélange d'agents tensio-actifs et leur utilisation comme apprêts textiles
EP0395902A2 (fr) * 1989-05-05 1990-11-07 SchàœLke & Mayr Gmbh Concentré désinfectant liquide
CH678971A5 (fr) * 1987-10-09 1991-11-29 Reisser Schraubenwerk Gmbh & C

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180514A (en) * 1985-06-17 1993-01-19 The Clorox Company Stabilizing system for liquid hydrogen peroxide compositions
US4900468A (en) * 1985-06-17 1990-02-13 The Clorox Company Stabilized liquid hydrogen peroxide bleach compositions
AT408987B (de) * 2000-10-13 2002-04-25 Thonhauser Gmbh Dipl Ing Reinigungs- und desinfektionsmittel
CN108505318B (zh) * 2018-03-23 2020-07-07 多恩生物科技有限公司 一种退浆剂及其制备方法
CN110592925A (zh) * 2019-09-09 2019-12-20 苏州联胜化学有限公司 化纤退浆剂及其制备方法、使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2148189A1 (fr) * 1971-08-02 1973-03-11 Fmc Corp
US3740188A (en) * 1971-08-02 1973-06-19 Fmc Corp Simultaneous desize-scour-bleach with activated hydrogen peroxide
AU472097B2 (en) * 1974-01-31 1974-04-04 Fmc Corporation Desize-scouring of textiles
EP0017190A1 (fr) * 1979-04-02 1980-10-15 Hoechst Aktiengesellschaft Procédé de désencollage oxydatif

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT151637B (de) * 1936-03-23 1937-11-25 Friedrich Ing Bohac Verfahren zur Entschlichtung von Waren aus Baumwolle oder andern zellulosehaltigen Textilfasern.
JPS5622988A (en) * 1979-08-01 1981-03-04 Hitachi Ltd Device for supporting nuclear fusion device vaccum vessel
JPS6027338B2 (ja) * 1979-08-07 1985-06-28 明 山村 係止突条付和型並びに洋型角瓦

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2148189A1 (fr) * 1971-08-02 1973-03-11 Fmc Corp
US3740188A (en) * 1971-08-02 1973-06-19 Fmc Corp Simultaneous desize-scour-bleach with activated hydrogen peroxide
AU472097B2 (en) * 1974-01-31 1974-04-04 Fmc Corporation Desize-scouring of textiles
EP0017190A1 (fr) * 1979-04-02 1980-10-15 Hoechst Aktiengesellschaft Procédé de désencollage oxydatif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MELLIAND TEXTILBERICHTE, Band 57, Mai 1976, Heidelberg (DE), NAUJOKS et al.: "Der Oxidative Abbau von Starkeschlichte mit Persulfat". seiten 401-405 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH678971A5 (fr) * 1987-10-09 1991-11-29 Reisser Schraubenwerk Gmbh & C
EP0360743A1 (fr) * 1988-09-19 1990-03-28 Ciba-Geigy Ag Mélange d'agents tensio-actifs et leur utilisation comme apprêts textiles
EP0395902A2 (fr) * 1989-05-05 1990-11-07 SchàœLke & Mayr Gmbh Concentré désinfectant liquide
EP0395902A3 (fr) * 1989-05-05 1992-04-22 SchàœLke & Mayr Gmbh Concentré désinfectant liquide

Also Published As

Publication number Publication date
EP0090351B1 (fr) 1987-05-13
US4478737A (en) 1984-10-23
DE3371546D1 (en) 1987-06-19
JPS58174675A (ja) 1983-10-13
ZA832228B (en) 1983-12-28
KR840004201A (ko) 1984-10-10
CA1189657A (fr) 1985-07-02
DE3211677A1 (de) 1983-10-06
KR900007089B1 (ko) 1990-09-28
EP0090351A3 (en) 1985-05-15
JPH0375663B2 (fr) 1991-12-02
BR8301618A (pt) 1983-12-06
ATE27192T1 (de) 1987-05-15
AR230299A1 (es) 1984-03-01

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