EP0220170B1 - Procédé et composition pour le traitement alcalin de substrats cellulosiques - Google Patents

Procédé et composition pour le traitement alcalin de substrats cellulosiques Download PDF

Info

Publication number
EP0220170B1
EP0220170B1 EP19850902362 EP85902362A EP0220170B1 EP 0220170 B1 EP0220170 B1 EP 0220170B1 EP 19850902362 EP19850902362 EP 19850902362 EP 85902362 A EP85902362 A EP 85902362A EP 0220170 B1 EP0220170 B1 EP 0220170B1
Authority
EP
European Patent Office
Prior art keywords
substrate
treatment
alkali metal
liquor
aqueous alkali
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
EP19850902362
Other languages
German (de)
English (en)
Other versions
EP0220170A1 (fr
Inventor
Angelo Rizzardi
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.)
Sandoz AG
Original Assignee
Sandoz 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 Sandoz AG filed Critical Sandoz AG
Publication of EP0220170A1 publication Critical patent/EP0220170A1/fr
Application granted granted Critical
Publication of EP0220170B1 publication Critical patent/EP0220170B1/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
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts

Definitions

  • the present invention provides a composition for the alkali treatment of a cellulosic substrate and a method for such treatment which comprises applying the composition to such a substrate.
  • composition of the present invention is an aqueous liquor containing as an essential component potassium hydroxide.
  • the treatment liquor may contain, in addition to the potassium hydroxide, other alkali metal hydroxides, such as sodium hydroxide. However, at least 75%, by weight, of the total alkali metal content must be potassium hydroxide. Preferably, potassium hydroxide is the sole alkali metal hydroxide present.
  • the amount of alkali metal hydroxide in the treatment liquor should be enough to improve the dyeability of the cellulosic substrate and is preferably in the range 120 to 400 g/I, more preferably 200 to 330 g/I, most preferably 240 to 300 g/I.
  • the alkalinity of the treatmet liquor desirably is in the range of 180-350 g/I (18 to 30° Be), especially 200-300 g/I (20 to 27° Be).
  • the treatment liquor preferably contains an alkali metal silicate. More preferably, the alkali metal silicate is sodium or potassium silicate.
  • the amount of alkali metal silicate present is generally up to 100 g/I and is preferably in the range 5 to 85 g/l, more preferably 10 to 70 g/I, most preferably 15 to 35 g/I, the amount being such that the alkalinity of the treatment liquor will be as stated above.
  • the ratio of alkali metal hydroxide to alkali metal silicate may range from 2:1 to 20: 1, preferably 4:1 to 16:1, more preferably 6:1 to 13:1, by weight.
  • a further preferred constituent of the alkali treatment liquor is a wetting agent.
  • Preferred wetting agents are anionic, non-ionic or amphoteric surfactants which are stable to aqueous potassium hydroxide in the amounts employed. Such compounds are known and commerically available. More preferably the wetting agent is of the anionic type, optionally in the form of a mixture with one or more other anionic wetting agents or with a non-ionic or amphoteric wetting agent. Suitable anionic wetting agents include:
  • Preferred anionic wetting agents are those of types i), iii), iv) and vii) above.
  • the most preferred anionic wetting agent is sodium 2-ethylhexyl sulphate.
  • the amount of wetting agent, when present, should be sufficient to promote uniform impregnation of the substrate with the treatment liquor during the application step and is generally up to 20 g/I, preferably 0.1 to 10, more preferably 0.5 to 7.5, most preferably 1 to 5 grams, per liter of treatment liquor.
  • a further preferred component of the treatment liquor is an alkali-resistant agent capable of sequestering or complexing with heavy metal ions. It is believed that such an agent inhibits the formation of less water-soluble metal silicates which might interfere with the removal of the alkali metal silicate during the rinsing of the substrate which follows the alkali treatment step.
  • alkali-resistant agent capable of sequestering or complexing with heavy metal ions. It is believed that such an agent inhibits the formation of less water-soluble metal silicates which might interfere with the removal of the alkali metal silicate during the rinsing of the substrate which follows the alkali treatment step.
  • Compounds useful for tying up heavy metals ions in aqueous media are known.
  • the preferred such compounds for use in the process of the present invention are alkali metal salts of hydroxycarboxylic acids, particularly pentonic, hexonic and heptonic acids, and more particularly gluconic acid, especially sodium gluconate.
  • the sequestering or complexing agent is conveniently added to the treatment liquor in an amount which may range up to 40 g/I, depending, for instance on the hardness of the water.
  • the amount of this component is in the range 0.2 to 20, more preferably 0.5 to 10, most preferably 2.5 to 5 g/I.
  • the metal-sequestering or complexing agent is conveniently added to the treatment liquor in admixture with a dispersing agent, preferably an anionic dispersant, such as a sulphonated fatty acid amide.
  • a dispersing agent preferably an anionic dispersant, such as a sulphonated fatty acid amide.
  • a particularly preferred mixture is an aqueous composition comprising by weight, 15% sodium gluconate and 5% sulphonated fatty acid amide.
  • a compound having textile lubricating as well as dispersing properties and particularly such compounds which have the further property of acting as retarding leveling agents for reactive dyes.
  • Anionic compounds are preferred, especially sulphonated or sulphated castor oil.
  • the amount of such a compound is preferably 0.1 to 15, more preferably 1 to 15 grams per liter of alkali treatment bath.
  • the aqueous alkali treatment liquor is applied to the substrate at a temperature which is above 7°C and is generally in the range 10 to 100°C.
  • the temperature is in the range 18-80°C, most preferably 20-35°C.
  • the liquor can be applied to the substrate by various methods, such as spraying, foam application or immersion.
  • the liquor is applied by padding.
  • the alkali treatment liquor is applied in the form of a foam
  • techniques similar to those known in the art for effecting various textile treatments can be employed.
  • the amount of foam applied will be sufficient to bring into contact with the substrate an amount of alkali treatment components equivalent to those applied e.g. by padding.
  • the substrate is allowed to dwell for a period of time sufficient to permit the components of the liquor to act on the cellulosic material.
  • the dwell time is at least 0.5 hour, preferably 0.5 to 10 hours, more preferably 1 to 4 hours. This can be conveniently effected by winding the impregnated substrate on a beam, which is optionally rotated during the dwelling. Alternatively, the goods may be stored in any suitable receptacle during the dwelling period. Dwelling is normally effected at ambient temperature, e.g. 18 to 35°C, preferably 21 to 20°C.
  • this brief dwelling interval will be at least 10 seconds, preferably 15 to 120 seconds, and most preferably 30 to 60 seconds.
  • moist heat e.g. steam
  • dry heat e.g. at 82-105°C
  • the substrate can be washed, bleached and dried in conventional fashion. Washing is generally effected with water, preferably softened or demineralized, at room temperature to boiling, preferably at 65 to 94°C.
  • the bleaching can be effected with a conventional peroxide bleaching composition.
  • the substrate treated according to the present invention can be a blend of cellulosic fibers with other fibers, e.g., polyester.
  • the substrate is 100% cellulosic, more preferably cotton.
  • the substrate can be in a variety of forms, e.g., woven, knitted or yarn. It is a particular advantage of the process of the invention that it can be used for the alkali treatment of knitted goods, more particularly tubular knitted goods.
  • Corduroy is another material for which the alkali treatment of this invention is especially advantageous.
  • Cellulosic fiber goods treated with a composition or process according to the invention have a smooth appearance with increased luster (gloss), tensile strength, and elongation strength and stability. They are also characterized by their improved dyeability, e.g., with reactive dyes. It has also been observed that the treated goods undergo substantially less shrinkage than is usually experienced in alkali treatments of cellulosic materials wherein the sole or major alkali metal hydroxide component is sodium hydroxide.
  • the process can be effected without the need for having the goods under tension (except the normal lengthwise tension exerted when the material is drawn between rollers during treatment).
  • the need for a tenter frame to keep the material under tension is avoided and the process can be employed for the treatment of tubular knitted goods.
  • the reduced shrinkage also makes this process attractive for the treatment of pile-surfaced substrates, such as corduroy.
  • Alkaline treatment baths are made up as follows:
  • composition of each bath is given in Table 1 below.
  • a flattened length of tubular knit grey cotton is treated as described in paragraphs a) and b) of Example 1, except that it is immersed in Bath 2 instead of Bath 1.
  • a flattened length of tubular knit grey cotton is treated as described in paragraphs a) and b) of Example 1, except that it is immersed in Bath 3 instead of Bath 1.
  • a substrate identical to that treated in Examples 1 and 2 is treated only according to paragraph b) of
  • a substrate identical to that treated in Example 3 is treated only according to paragraph b) of Example 1.
  • the substrates treated according to Examples 1 and 2 and C1 were dyed under identical conditions with the same reactive dye by the pad batch method.
  • Example 1 Compared to C1 the substrate of Example 1 exhibited 23.7% greater dye affinity and the substrate of Example 2 exhibited 13.9% greater dye affinity.
  • the substrate treated according to Examples 3 and C2 were dyed under identical conditions with the same reactive dye by the pad batch method. Compared to C2 the substrate of Example 3 exhibited more than 40% greater dye affinity.
  • a continuous length of tubular single knit grey cotton jersey is drawn open width at a speed of 45.5 m/min (50 yds./min.) over a series of rollers, through a treatment bath, through a pair of squeeze rollers and onto a perforated roller. During this passage the material is under tension only in a lengthwise direction.
  • the temperature of the treatment bath is 25°C and its composition is as follows: 270 g/I potassium hydroxide (as 90% flakes), 75 g/I sodium silicate (as a 520 g/I (42° Bé) aqueous solution); 15 g/I of the sodium gluconate-sulphonated fatty acid amide mixture specifically described above; 5 g/I sulphonated castor oil (35% active) and 3 g/I sodium 2-ethylhexyl sulphate (20% active).
  • a bubble of air is maintained in the length of tubular material between a roller in the treatment bath and the squeeze rollers.
  • the speed of travel of the material and the pressure of the squeeze rollers in such as to give a wet pick-up of 116%, based on the weight of the material.
  • the impregnated material is allowed to dwell on the perforated roller for 2 hours at room temperature.
  • the thus-treated substrate is characterized by improved luster and dyeability along with very good hand and stretchability.
  • the pick-up is 130% and the treatment liquor comprises: 250 g/I potassium hydroxide (100%); 130 g/I sodium silicate (30%); 15 g/I sodium gluconate-sulphonated fatty acid amide; 7 g/I sulphonated castor oil (35%); and 12 g/I sodium 2-ethylhexyl sulphate (20%).
  • the resulting knitted cotton substrate has good luster, dyeability, and dimensional stability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Coloring (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Detergent Compositions (AREA)

Abstract

Le procédé ci-décrit est destiné à améliorer l'affinité à la teinture ainsi que d'autres propriétés de matériaux cellulosiques, en particulier des articles en coton tricotés, le matériau étant imprégné d'une solution aqueuse contenant une quantité effective d'hydroxyde de potassium ainsi que, de préférence, un silicate métallique alcalin, un agent humectant et un agent de séquestration, à une température d'au moins 7oC (45oF) environ. L'application d'une tension n'est pas nécessaire et le traitement est particulièrement utile lorqu'il est appliqué à des articles tricotés tubulaires.

Claims (9)

1. Un procédé de traitement alcalin d'un substrat cellulosique tissé ou tricoté, caractérisé en ce qu'il comprend l'application au-dit substrat d'un bain alcalin aqueux contenant de l'hydroxyde de potassium en une quantité comprise entre 200 et 330 g/I et un silicate de métal alcalin.
2. Un procédé selon la revendication 1, caractérisé en ce que la quantité de silicate de métal alcalin dans le bain alcalin aqueux est comprise entre 5 et 85 g/I.
3. Un procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le bain alcalin aqueux contient un agent mouillant.
4. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bain alcalin aqueux contient un agent séquestrant ou complexant des cations et éventuellement un composé ayant des propriétés lubrifiantes pour les textiles.
5. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le substrat est constitué de coton ou d'un mélange de coton et de polyester.
6. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le substrat est un article tricoté.
7. Un procédé selon la revendication 6, caractérisé en ce que le substrat est sous forme d'articles tricotés tubulaires.
8. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que après l'application du bain alcalin aqueux, on laisse reposer le substrat pendant une période de temps suffisante pour que les composants du bain de traitement agissent sur le substrat et on le lave ensuite pour éliminer l'hydroxyde de métal alcalin.
9. Un procédé selon la revendication 8, caractérisé en ce que pendant les étapes d'application, de repos et de lavage, le substrat est exempt de tension dans le sens de sa largeur.
EP19850902362 1985-04-24 1985-04-24 Procédé et composition pour le traitement alcalin de substrats cellulosiques Expired EP0220170B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1985/000760 WO1986006425A1 (fr) 1985-04-24 1985-04-24 Procede et composition preconises pour le traitement alcalin de substrats cellulosiques

Publications (2)

Publication Number Publication Date
EP0220170A1 EP0220170A1 (fr) 1987-05-06
EP0220170B1 true EP0220170B1 (fr) 1989-10-11

Family

ID=22188661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850902362 Expired EP0220170B1 (fr) 1985-04-24 1985-04-24 Procédé et composition pour le traitement alcalin de substrats cellulosiques

Country Status (4)

Country Link
EP (1) EP0220170B1 (fr)
JP (1) JPS63500530A (fr)
DE (1) DE3573625D1 (fr)
WO (1) WO1986006425A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8600676D0 (en) * 1986-01-13 1986-02-19 Sandoz Ltd Organic compounds
GB9105247D0 (en) * 1991-03-12 1991-04-24 Unilever Plc Dyebath additive
US7931701B2 (en) * 2002-12-27 2011-04-26 Hbi Branded Apparel Enterprises, Llc Composition for dyeing of cellulosic fabric
US7931700B2 (en) 2002-12-27 2011-04-26 Hbi Branded Apparel Enterprises, Llc Composition for dyeing of cellulosic fabric
US7931699B2 (en) 2002-12-27 2011-04-26 Hbi Branded Apparel Enterprises, Llc Compositions for spray dyeing cellulosic fabrics

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE98601C (fr) *
US2497519A (en) * 1946-12-04 1950-02-14 Alrose Chemical Company Art of stabilizing rayon type fabric
NL77767C (fr) * 1950-01-17
NL172950B (nl) * 1951-07-07 Toyo Engineering Corp Werkwijze voor het bereiden van ureum.
CH4046659D (fr) * 1956-12-17
GB1572606A (en) * 1976-04-01 1980-07-30 Unilever Ltd Liquid detergent composition
CH647286A5 (de) * 1980-10-11 1985-01-15 Sandoz Ag Phosphatfreie oder phosphatarme wasch- und reinigungsmittel.
JPS5860062A (ja) * 1981-08-22 1983-04-09 サンド・アクチエンゲゼルシヤフト アルカリ乾燥処理方法

Also Published As

Publication number Publication date
JPS63500530A (ja) 1988-02-25
EP0220170A1 (fr) 1987-05-06
DE3573625D1 (en) 1989-11-16
WO1986006425A1 (fr) 1986-11-06

Similar Documents

Publication Publication Date Title
US4643736A (en) Desizing and bleaching woven fabrics in a single operation in a bath based on sodium chlorite
JP2578135B2 (ja) 部分エステル化ブロックポリマー並びにその製造及び使用方法
US5512060A (en) Process for treating textile materials with enzyme containing compositions and high frequency fields
DE19502514A1 (de) Textilveredlungsmittel
US5484453A (en) Composition and process for treating textile materials
CA1202919A (fr) Methode de desencollage et de blanchiment simultanes des matieres textiles a base de fibres de cellulose
US4457760A (en) Process for desizing and bleaching cloth with a hydrogen peroxide-based bath in a single operation
EP0220170B1 (fr) Procédé et composition pour le traitement alcalin de substrats cellulosiques
US5542950A (en) Alkyl polyglycosides in textile scour/bleach processing
US5047064A (en) Method and composition for the alkali treatment of cellulosic substrates
JP3072872B2 (ja) 繊維材料を前処理する方法
US5833719A (en) Alkyl polyglycosides in textile scour/bleach processing
US5527362A (en) Alkyl polyglycosides in textile scour/bleach processing
JP2872447B2 (ja) 泡立ちの少ない非シリコーン水性繊維助剤組成物、その製造法及び使用法
US4568349A (en) Alkali treatment of cellulosic fiber goods
US3682583A (en) Process of removing polyvinyl alcohol containing size
CN113463367A (zh) 一种棉织物的低强损冷堆漂白的方法
US2048991A (en) Process for bleaching fibrous material
US5536275A (en) Method for the pretreatment of cotton-containing fabric
US3634024A (en) Desize-scouring of textiles with alkaline peroxydiphosphate solutions
GB2186298A (en) Alkaline treatment of cellulose/polyacrylonitrile fibre blends
JPH02216282A (ja) セルロース系繊維構造物の減量加工方法
US20240060230A1 (en) Launderable activated cotton garment
JPS5860062A (ja) アルカリ乾燥処理方法
US6663677B2 (en) Methods for use in wool whitening and garment washing

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: 19861222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 19870720

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 3573625

Country of ref document: DE

Date of ref document: 19891116

ITF It: translation for a ep patent filed

Owner name: SANDOZ PRODOTTI FARMAC. S.P.A.

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SANDOZ AG TRANSFER- CLARIANT FINANCE (BVI) LIMITED

Ref country code: CH

Ref legal event code: NV

Representative=s name: SANDOZ TECHNOLOGIE AG

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: CLARIANT INTERNATIONAL LTD.

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20020320

Year of fee payment: 18

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030424

GBPC Gb: european patent ceased through non-payment of renewal fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040309

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20040602

Year of fee payment: 20

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

Ref country code: CH

Payment date: 20040713

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL