EP0086898A1 - Suspensions aqueuses de péroxodisulfate et leur usage comme agent de désencollage pour des textiles imprégnees d'amidon - Google Patents

Suspensions aqueuses de péroxodisulfate et leur usage comme agent de désencollage pour des textiles imprégnees d'amidon Download PDF

Info

Publication number
EP0086898A1
EP0086898A1 EP82111950A EP82111950A EP0086898A1 EP 0086898 A1 EP0086898 A1 EP 0086898A1 EP 82111950 A EP82111950 A EP 82111950A EP 82111950 A EP82111950 A EP 82111950A EP 0086898 A1 EP0086898 A1 EP 0086898A1
Authority
EP
European Patent Office
Prior art keywords
water
desizing
suspensions
peroxydisulfates
starch
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
EP82111950A
Other languages
German (de)
English (en)
Other versions
EP0086898B1 (fr
Inventor
Werner Dr. Streit
Linda Witt
Heinz-Dieter Angstmann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to AT82111950T priority Critical patent/ATE15916T1/de
Publication of EP0086898A1 publication Critical patent/EP0086898A1/fr
Application granted granted Critical
Publication of EP0086898B1 publication Critical patent/EP0086898B1/fr
Expired legal-status Critical Current

Links

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

  • Peroxydisulfates have long been known as oxidizing agents for the desizing of textile goods sized with starch. From AT-PS 28 17 43 it is known to carry out such desizing processes with alkali or ammonium peroxydisulfate solutions at pH values of approximately 10. From DE-OS 29 13 177 an oxidative desizing agent is known which consists of 10 to 80% by weight of a surfactant and 20 to 90% by weight of potassium peroxydisulfate. Finally, DE-AS 28 14 354 discloses an oxidative desizing process in which peroxydisulfate is used as a desizing agent together with water-soluble polymers of acrylic acid.
  • Solid products such as peroxydisulfate or semi-solid (pasty) products according to DE-OS 29 13 177 are not particularly popular with customers because of the difficult metering technology, and so the object of the present invention was to put the peroxydisulfate into a storage-stable, if possible to transfer a viscous and easily metered form which, like the previously proposed fixed specifications, guarantees perfect or, if possible, even better oxidative desizing.
  • the peroxydisulfate in this suspension does not decompose, despite the presence of water, if this water contains additional potassium ions.
  • These potassium ions apparently act on the solubility product, which applies to potassium peroxydisulfate, in such a way that the peroxydisulfate becomes practically insoluble under the conditions of storage in water, and is therefore in finely dispersed form and is not attacked by the water. Only under the conditions of desizing, under which the peroxydisulfate is present in a large dilution, does it dissolve and can become active in the intended sense.
  • the suspensions according to the invention necessarily contain potassium peroxydisulfate, polymers or copolymers of acrylic acid and / or maleic acid and the water containing additional potassium ions.
  • the potassium peroxydisulfate is preferably present in the suspension in an amount of 15 to 40, especially 20 to 30% by weight, based on the suspension.
  • the polymers or copolymers of acrylic acid or maleic acid are understood to be those which are water-soluble, namely polyacrylic acid and polymaleic acid itself, then as copolymers preferably those which contain up to 50% by weight of copolymerizable monoethylenically unsaturated compounds copolymerizable with acrylic acid or maleic anhydride, for example methacrylic acid , Acrylic acid, methacrylic acid C 1 - bls C 4 alkyl esters, copolymers of maleic acid with methyl vinyl ether, vinyl acetate, styrene, acrylic acid or methacrylic acid. Further copolymers are in the aforementioned DE-AS 28 14 354 called, but we expressly referenced here. However, polyacrylic acid and polymaleic acid are of particular technical interest.
  • All polymers should have Fikentscher K values of 8 to 30, preferably 10 to 20. They are preferably used in amounts of 2 to 35% by weight, especially 9 to 30% by weight.
  • the additional K ⁇ ions preferably originate from compounds which provide potassium ions and are able to help set the required pH of at least 5, that is to say primarily KOH, potash or K 2 0.
  • others such as K 2 SO can also be used 4
  • potassium phosphate or KCl can be used.
  • the potassium compounds are contained in the aqueous phase at 12 to 65% by weight. This essentially corresponds to at least the saturation concentration, ie the exact percentages. The proportions depend on the potassium compound used within the limits specified above.
  • This system already represents a storage-stable and easy-to-dose liquid suspension which can be used successfully in desizing fleets.
  • Suspensions which can be metered even better and even pumped are obtained if, based on the newly formed suspension, preferably up to 75% by weight, especially 25 to 45% by weight, of anionic surfactants according to the definition are added to the above-mentioned suspensions.
  • anionic surfactants are primarily acidic phosphoric or sulfuric acid esters of C 8 -C 20 -alkanols or their ethoxylates with 1 to 7 ethylene oxide units.
  • C 10 to C 20 alkanesul fonates and alkylbenzenesulfonates and sulfated alkylphenol ethoxylates can be used as anionic surfactants.
  • nonionic surfactants can also be present (preferably up to 40% by weight), and C 8 to C 20 alkanol ethoxylates with 1 to 10 ethylene oxide groups are particularly mentioned here.
  • the suspensions constructed in this way can be used very well as oxidative desizing agents for textiles sized with starch. They are generally added to the desizing liquors in amounts of 4 to 20, preferably 6 to 13 g / l of desizing liquor. Depending on the amount of surfactant in the persulfate suspensions, the desizing liquors also contain additional wetting and washing agents. If the proportion of surfactant in the suspensions is relatively high, the additional wetting agents and detergents can be dispensed with.
  • the mixtures were stored at 50 ° b between 8 0 0 .
  • the respective persulfate content was determined titrimetrically. 1 g of the mixture was dissolved in 50 ml of H 2 0 / isopropanol (40:10) and 50 ml of KJ solution (concentration: 300 g / l) were added. After fifteen minutes at room temperature, titration was carried out with 0.1 N sodium thiosulfate solution until it turned colorless.
  • the K 2 S 2 O 8 content was monitored at a storage temperature of 50 ° C.
  • the sample after three weeks of storage at 50 ° showed the same desizing effect as the starting sample when desizing Bw nettle with an addition of 10 g / l in the desizing liquor and 15 minutes residence time of the fabric at 100 °.
  • a Tegewa value of 8 was achieved in both cases.
  • Comparative example to example 1 Storage at 50 ° C: the comparative sample showed a sufficient desizing effect only after production with an amount of 10 g / l in the desizing liquor under otherwise identical conditions as in Example 1 (Tegewa value 8). After seven days of storage, only a Tegewa value of 4 was achieved during desizing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP82111950A 1982-01-28 1982-12-23 Suspensions aqueuses de péroxodisulfate et leur usage comme agent de désencollage pour des textiles imprégnees d'amidon Expired EP0086898B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82111950T ATE15916T1 (de) 1982-01-28 1982-12-23 Waessrige suspensionen von peroxydisulfaten und ihre verwendung als oxidative entschlichtungsmittel fuer mit staerke geschlichtetes textilgut.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823202760 DE3202760A1 (de) 1982-01-28 1982-01-28 Waessrige suspensionen von peroxydisulfaten und ihre verwendung als oxidative entschlichtungsmittel fuer mit staerke geschlichtetes textilgut
DE3202760 1982-01-28

Publications (2)

Publication Number Publication Date
EP0086898A1 true EP0086898A1 (fr) 1983-08-31
EP0086898B1 EP0086898B1 (fr) 1985-10-02

Family

ID=6154148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111950A Expired EP0086898B1 (fr) 1982-01-28 1982-12-23 Suspensions aqueuses de péroxodisulfate et leur usage comme agent de désencollage pour des textiles imprégnees d'amidon

Country Status (6)

Country Link
US (1) US4507220A (fr)
EP (1) EP0086898B1 (fr)
JP (1) JPS58135109A (fr)
AT (1) ATE15916T1 (fr)
CA (1) CA1209756A (fr)
DE (2) DE3202760A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581323B1 (fr) * 1985-05-06 1987-05-29 Rhone Poulenc Spec Chim Nouvelle composition tensio-active, son procede d'obtention et ses applications
DE3903601C1 (fr) * 1989-02-08 1990-05-10 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
US5855805A (en) * 1996-08-08 1999-01-05 Fmc Corporation Microetching and cleaning of printed wiring boards

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814354B1 (de) * 1978-04-03 1979-07-26 Basf Ag Verfahren zum Entschlichten von Cellulose enthaltenden oder daraus bestehenden Textilien
DE2913177A1 (de) * 1979-04-02 1980-10-23 Hoechst Ag Oxidatives entschlichtungsmittel und verfahren zum oxidativen entschlichten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1469325A1 (de) * 1964-12-28 1968-11-28 Degussa Verfahren zum Entschlichten von Textilien aus Cellulose

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814354B1 (de) * 1978-04-03 1979-07-26 Basf Ag Verfahren zum Entschlichten von Cellulose enthaltenden oder daraus bestehenden Textilien
DE2913177A1 (de) * 1979-04-02 1980-10-23 Hoechst Ag Oxidatives entschlichtungsmittel und verfahren zum oxidativen entschlichten

Also Published As

Publication number Publication date
DE3266715D1 (en) 1985-11-07
ATE15916T1 (de) 1985-10-15
DE3202760A1 (de) 1983-08-04
CA1209756A (fr) 1986-08-19
US4507220A (en) 1985-03-26
EP0086898B1 (fr) 1985-10-02
JPS58135109A (ja) 1983-08-11
JPH0350028B2 (fr) 1991-07-31

Similar Documents

Publication Publication Date Title
DE2609039C3 (de) Verfahren zum Herstellen von beständigem Natriumpercarbonat
DE1280456B (de) Pulverfoermiges Reinigungs- und/oder Scheuermittel und Verfahren zu seiner Herstellung
DE2450524B2 (de) Festes, schaumbildendes bleichmittel
DE1467686A1 (de) Reinigungsmittel
DE1296297B (de) Nicht mit Silikaten beschichtete Reinigungsmitteltablette
DE2422691A1 (de) Stabile bleichmittel
DE1271885B (de) Fluessige, lagerbestaendige Wasch-, Bleich- und Oxydationsmittel
DE2510184A1 (de) Schaeumende bleichmittelmischung
EP0086898B1 (fr) Suspensions aqueuses de péroxodisulfate et leur usage comme agent de désencollage pour des textiles imprégnees d'amidon
DE1803099C3 (fr)
DE3406322A1 (de) Stabilisierte, wasser enthaltende, alkalisch eingestellte natriumdithionitzubereitungen
DE2029599A1 (de) Bleich- und Enthärtungsmittel
DE1293451C2 (de) Verfahren zur Herstellung von Alkali-Staerkephosphaten
EP1211942B1 (fr) Procede pour produire un complexe polyvinylpyrrolidone-iode en solution aqueuse
EP1232239A1 (fr) Procede pour la production de detergents ou de nettoyants particulaires
CH695688A5 (de) Flüssiges portionierbares wasserfreies Waschmittelkonzentrat.
DE2905881A1 (de) Konzentriertes waesche-weichspuelmittel
DE2704181B2 (de) Flüssig-flüssig-Extraktion von Nickel
DE1617072A1 (de) Reinigungsmittelkonzentrate
DE1594870A1 (de) Zusammensetzungen auf der Basis von Alkalihalogeniten
DE243368C (fr)
DE3227915A1 (de) Waessrige konzentrierte loesungen von mischungen aus organischen komplexbildnern und dispergiermitteln auf basis von polymeren aliphatischen carbonsaeuren
DE2210347A1 (de) Bakterizide Substanz
DD140140B1 (de) Verfahren zur Herstelfcing eines stabilen Natrhifflkarbonat-Perhydrats
DE657116C (de) Antiseptische Waschmittel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19821223

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 15916

Country of ref document: AT

Date of ref document: 19851015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3266715

Country of ref document: DE

Date of ref document: 19851107

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19921113

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19921204

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19921231

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19931224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19931231

BERE Be: lapsed

Owner name: BASF A.G.

Effective date: 19931231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19941124

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19941125

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19941201

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19941215

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19941227

Year of fee payment: 13

EUG Se: european patent has lapsed

Ref document number: 82111950.0

Effective date: 19940710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19951223

Ref country code: AT

Effective date: 19951223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19951231

Ref country code: CH

Effective date: 19951231

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19951223

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960830

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST