EP0055664B1 - Process for simultaneously desizing and bleaching textiles in a bath based on hydrogen peroxide - Google Patents
Process for simultaneously desizing and bleaching textiles in a bath based on hydrogen peroxide Download PDFInfo
- Publication number
- EP0055664B1 EP0055664B1 EP81402047A EP81402047A EP0055664B1 EP 0055664 B1 EP0055664 B1 EP 0055664B1 EP 81402047 A EP81402047 A EP 81402047A EP 81402047 A EP81402047 A EP 81402047A EP 0055664 B1 EP0055664 B1 EP 0055664B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- desizing
- bleaching
- hydrogen peroxide
- bath
- fabric
- 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
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- 238000004061 bleaching Methods 0.000 title claims abstract description 15
- 238000009990 desizing Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000004753 textile Substances 0.000 title description 2
- 239000004744 fabric Substances 0.000 claims abstract description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 18
- 102000004190 Enzymes Human genes 0.000 claims abstract description 11
- 108090000790 Enzymes Proteins 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 239000003352 sequestering agent Substances 0.000 claims abstract description 4
- 229920002472 Starch Polymers 0.000 claims description 9
- 235000019698 starch Nutrition 0.000 claims description 9
- 239000008107 starch Substances 0.000 claims description 8
- 230000002255 enzymatic effect Effects 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 210000001519 tissue Anatomy 0.000 description 8
- 239000000835 fiber Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000000593 degrading effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000004382 Amylase Substances 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- 241000255969 Pieris brassicae Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- -1 peroxide hydrogen Chemical class 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000020004 porter Nutrition 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- 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
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
Definitions
- the present invention relates to a process for desizing and bleaching in a single operation of fabrics or similar compositions based on textile fibers.
- the purpose of desizing is to eliminate the sizing products applied beforehand to the warp threads to promote their behavior on the loom, as well as the products possibly applied to the weft threads.
- the sizing products of the threads before weaving can be based either on starch dispersions alone or in admixture with starches more or less chemically transformed, or polyvinyl alcohol derivatives, or polyacrylate derivatives, or etherified cellulose. .
- the sizing products can be more or less retained in the fabric depending on the drying temperature, the twist of the thread and the texture of the fabric.
- Desizing is generally carried out by impregnation in an enzyme and surfactant bath heated to a temperature between 60 ° C and 75 ° C.
- the impregnated fabric can be either left in deposit or vaporized at a temperature of 100 ° C. It is then washed at 95 ° C then at 60 ° C and, possibly with running water.
- the scouring which aims to saponify the cotton fats and to solubilize the woody residues, is carried out in caustic soda medium and at a temperature between 100 ° C and 140 ° C.
- bleaching is to oxidize the impurities which are part of the unbleached or already boiled fiber of cotton, linen or any other cellulosic fibers. It is carried out in practically all cases with oxidants such as hydrogen peroxide, peroxides and alkaline persalts, peracetic acid, sodium hypochlorite, sodium chlorite, etc.
- Desizing, scouring, bleaching operations are generally carried out in an aqueous medium and under hot conditions. Each of them is followed by hot and cold washes resulting in significant consumption of water and energy.
- the object of the present invention is to reduce the number of operations for preparing tissue based on cellulosic fibers, alone or in admixture with one another or with other regenerated or chemical fibers, such as viscoses, polyamides and polyesters and provides a new process in which desizing and bleaching are combined in a single operation.
- the single operation desizing-bleaching process of the present invention is carried out in a bath comprising hydrogen peroxide, a base such as sodium hydroxide, optionally a stabilizing agent such as sodium silicate, a sequestering agent such as sodium salt of diethylenetriamine pentacetic acid (DTPA), an enzyme preparation based on a starch degrading enzyme and a surfactant.
- a base such as sodium hydroxide
- a stabilizing agent such as sodium silicate
- a sequestering agent such as sodium salt of diethylenetriamine pentacetic acid (DTPA)
- DTPA diethylenetriamine pentacetic acid
- the present invention relates to a process for desizing and simultaneous bleaching of fabrics, characterized in that the single operation of desizing and bleaching is carried out in a bath whose pH is between 10 and 10.5 and which comprises peroxide hydrogen, sodium hydroxide, a sequestering agent, an enzyme preparation based on a starch degrading enzyme and a surfactant.
- An enzymatic preparation which can be used according to the invention is for example that which is the subject of German patent application DE-A-2909396.7, consisting of an intimate mixture of a starch degrading enzyme, such as an amylase. , and a nonionic surfactant belonging to the group of alkyl and alkyl oxalkylates in water.
- a suitable enzyme preparation will, for example, consist of 10 to 40 parts by weight of an aqueous enzyme preparation and 10 to 60 parts by weight of a nonionic surfactant. Particularly satisfactory results are obtained using one of these enzymatic preparations marketed by the brand ENZYLASE C, by the company DIA-MALT.
- a desizing-bleaching bath usable according to the invention can for example comprise:
- the treatment is followed by washing at 90 ° C - 95 ° C, 60 ° C and cold.
- the washing bath at 90 ° C - 95 ° C can advantageously include an addi tion of alkaline elements, caustic soda, sodium carbonate, trisodium phosphate as well as surfactant detergents.
- One of the advantages of the process according to the invention is that it eliminates a wet desizing operation carried out at a minimum temperature of 60 ° C - 65 ° C, as well as several washing baths at temperatures of 90 ° C - 95 ° C.
- the application of the method also removes a “wet on wet” impregnation, that is to say wet tissue entering a bath containing the bleaching products. It is known that this treatment causes a number of constraints: preparation of a more concentrated bath, maintenance of the impregnation bath at level and at constant concentrations, which involves either manual control or automatic regulation.
- the characteristics of the fabric thus treated are excellent: high degree of whiteness, elimination of almost total sizing, instant hydrophilicity, degree of well-managed polymerization.
- a 195 g / m 2 flea cotton fabric, 182 cm wide, 55.3% reflectance measured with an ELREPHO ZEISS filter n ° 8 filter, wavelength 457 nanometers, starch content 5.05% intended for the printing in reactive dyes was directly impregnated in ecru in a bath containing: The pH is between 10 and 10.5.
- the impregnated fabric After spraying at 95 ° C, the impregnated fabric is rolled up in a heat-insulated chamber where it remains in reaction for 1 to 2 hours.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detergent Compositions (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
- Cosmetics (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
Description
La présente invention concerne un procédé de désencollage et blanchiment en une seule opération de tissus ou compositions similaires à base de fibres textiles.The present invention relates to a process for desizing and bleaching in a single operation of fabrics or similar compositions based on textile fibers.
Il est connu que la préparation des tissus en fibres cellulosiques à la teinture, à l'impression ainsi qu'à d'autres traitements de finissage comporte généralement les opérations de désencollage, débouillissage, blanchiment et éventuellement mercerisage.It is known that the preparation of cellulosic fiber fabrics for dyeing, printing and other finishing treatments generally involves the operations of desizing, scouring, bleaching and possibly mercerizing.
La désencollage a pour but d'éliminer les produits d'encollage appliqués préalablement aux fils de chaîne pour favoriser leur comportement sur le métier à tisser, ainsi que les produits éventuellement appliqués aux fils de trame.The purpose of desizing is to eliminate the sizing products applied beforehand to the warp threads to promote their behavior on the loom, as well as the products possibly applied to the weft threads.
Les produits d'encollage des fils avant tissage peuvent être à base soit de dispersions d'amylacés seules ou en mélange avec des amylacés plus ou moins transformés chimiquement, soit de dérivés d'alcool polyvinylique, soit de dérivés de polyacrylate, soit de cellulose éthérifiée.The sizing products of the threads before weaving can be based either on starch dispersions alone or in admixture with starches more or less chemically transformed, or polyvinyl alcohol derivatives, or polyacrylate derivatives, or etherified cellulose. .
Les produits d'encollage peuvent être plus ou moins retenus dans le tissu suivant la température de séchage, la torsion du fils et la contexture du tissu.The sizing products can be more or less retained in the fabric depending on the drying temperature, the twist of the thread and the texture of the fabric.
La présence de tels produits empêche, lors de la teinture et de l'impression avec de nombreux colorants, l'obtention d'une nuance homogène et solide, et il est nécessaire de les éliminer avant de procéder aux opérations de teinture ou d'impression.The presence of such products prevents, when dyeing and printing with many dyes, obtaining a homogeneous and solid shade, and it is necessary to remove them before carrying out the dyeing or printing operations. .
Pour certains tissus destinés à la vente au grand blanc, l'élimination de l'encollage est également souhaitée afin de donner à la marchandise traitée un toucher agréable et souple.For certain fabrics intended for sale in large white, the elimination of sizing is also desired in order to give the treated goods a pleasant and flexible touch.
Le désencollage est généralement effectué par impregnation dans un bain d'enzymes et de tensio-actif chauffé à une température comprise entre 60°C et 75°C. Le tissu imprégné peut être, soit laissé en dépôt, soit vaporisé à une température de 100°C. Il est ensuite lavé à 95°C puis à 60°C et, éventuellement à l'eau courante.Desizing is generally carried out by impregnation in an enzyme and surfactant bath heated to a temperature between 60 ° C and 75 ° C. The impregnated fabric can be either left in deposit or vaporized at a temperature of 100 ° C. It is then washed at 95 ° C then at 60 ° C and, possibly with running water.
Le débouillissage, qui a pour but de saponifier les matières grasses du coton et de solubiliser les résidus ligneux, est effectué en milieu de soude caustique et à une température comprise entre 100°C et 140°C.The scouring, which aims to saponify the cotton fats and to solubilize the woody residues, is carried out in caustic soda medium and at a temperature between 100 ° C and 140 ° C.
Le blanchiment a pour but d'oxyder les impuretés qui font partie de la fibre écrue ou déjà débouillie de coton, de lin ou de toutes autres fibres cellulosiques. Il est effectué dans pratiquement tous les cas avec les oxydants tels que le peroxyde d'hydrogène, les peroxydes et persels alcalins, l'acide peracétique, l'hypochlorite de soude, le chlorite de soude, etc...The purpose of bleaching is to oxidize the impurities which are part of the unbleached or already boiled fiber of cotton, linen or any other cellulosic fibers. It is carried out in practically all cases with oxidants such as hydrogen peroxide, peroxides and alkaline persalts, peracetic acid, sodium hypochlorite, sodium chlorite, etc.
Les opérations de désencollage, débouillissage, blanchiment sont généralement effectuées en milieu aqueux et à chaud. Chacune'd'entre elles est suivie de lavages à chaud et à froid entrainant une consommation importante d'eau et d'énergie.Desizing, scouring, bleaching operations are generally carried out in an aqueous medium and under hot conditions. Each of them is followed by hot and cold washes resulting in significant consumption of water and energy.
La présente invention a pour objet de réduire le nombre des opérations de préparation de tissu à base de fibres cellulosiques, seules ou en mélange entre elles ou avec d'autres fibres régénérées ou chimiques, telles les viscoses, les polyamides et les polyesters et fournit un nouveau procédé dans lequel le désencollage et le blanchiment sont combinés en une seule opération.The object of the present invention is to reduce the number of operations for preparing tissue based on cellulosic fibers, alone or in admixture with one another or with other regenerated or chemical fibers, such as viscoses, polyamides and polyesters and provides a new process in which desizing and bleaching are combined in a single operation.
Le procédé de désencollage-blanchiment en une seule opération de la présente invention est effectué dans un bain comprenant du peroxyde d'hydrogène, une base telle l'hydroxyde de sodium, éventuellement un agent stabilisant tel le silicate de sodium, un agent séquestrant tel le sel de sodium de l'acide diéthylènetriamine pentacé- tique (DTPA), une préparation enzymatique à base d'une enzyme de dégradation de l'amidon et un agent tensio-actif.The single operation desizing-bleaching process of the present invention is carried out in a bath comprising hydrogen peroxide, a base such as sodium hydroxide, optionally a stabilizing agent such as sodium silicate, a sequestering agent such as sodium salt of diethylenetriamine pentacetic acid (DTPA), an enzyme preparation based on a starch degrading enzyme and a surfactant.
Plus particulièrement la présente invention concerne un procédé de désencollage et de blanchiment simultané des tissus caractérisé en ce que l'opération unique de désencollage blanchiment est effectué dans un bain dont le pH est compris entre 10 et 10,5 et qui comprend du peroxyde d'hydrogène, de l'hydroxyde de sodium, un agent sequestrant, une préparation enzymatique à base d'un enzyme de dégradation de l'amidon et un agent tensio-actif.More particularly the present invention relates to a process for desizing and simultaneous bleaching of fabrics, characterized in that the single operation of desizing and bleaching is carried out in a bath whose pH is between 10 and 10.5 and which comprises peroxide hydrogen, sodium hydroxide, a sequestering agent, an enzyme preparation based on a starch degrading enzyme and a surfactant.
Une préparation enzymatique utilisable selon l'invention est par exemple celle faisant l'objet de la demande de brevet allemand DE-A-2909396.7, constituée d'un mélange intime d'un enzyme de dégradation de l'amidon, telle qu'une amylase, et d'un agent tensio-actif non ionique appartenant au groupe des oxalcoylates d'alcoyles et d'alca- ryles dans l'eau. Une préparation enzymatique appropriée sera par exemple constituée de 10 à 40 parties en poids d'une préparations aqueuse d'enzyme et de 10 à 60 parties en poids d'un agent tensio-actif non ionique. On obtient des résultats particulièrement satisfaisants en utilisant une de ces préparations enzymatiques commercialisée par la marque ENZYLASE C, par la Société DIA-MALT.An enzymatic preparation which can be used according to the invention is for example that which is the subject of German patent application DE-A-2909396.7, consisting of an intimate mixture of a starch degrading enzyme, such as an amylase. , and a nonionic surfactant belonging to the group of alkyl and alkyl oxalkylates in water. A suitable enzyme preparation will, for example, consist of 10 to 40 parts by weight of an aqueous enzyme preparation and 10 to 60 parts by weight of a nonionic surfactant. Particularly satisfactory results are obtained using one of these enzymatic preparations marketed by the brand ENZYLASE C, by the company DIA-MALT.
Un bain de désencollage-blanchiment utilisabel selon l'invention peut par exemple comporter:
L'application du procédé se fait de préférence selon la technique comportant:
- 1. Imprégnation du tissu dans le bain de désencollage et blanchiment; exprimage pour ne laisser dans le tissu que la quantité de bain nécessaire à la réaction. Elle est généralement comprise entre 60 et 120% du poids du tissu sec selon le tissu considéré.
- 2. Vaporisage pour porter le tissu à la température de réaction souhaitée généralement comprise entre 20°C et 120°C.
- 3. Dépôt par enroulage ou en plis en J-Box, U-Box, machine à tapis... pour un temps pouvant varier de quelques minutes à plusieurs heures.
- 1. Impregnation of the fabric in the desizing and bleaching bath; expressing so as to leave in the tissue only the quantity of bath necessary for the reaction. It is generally between 60 and 120% of the weight of the dry fabric depending on the fabric considered.
- 2. Spraying to bring the fabric to the desired reaction temperature, generally between 20 ° C and 120 ° C.
- 3. Deposit by winding or in folds in J-Box, U-Box, carpet machine ... for a time that can vary from a few minutes to several hours.
Le traitement est suivi d'un lavage à 90°C - 95°C, 60°C et à froid. Le bain de lavage à 90°C - 95°C peut avantageusement comporter une addition d'éléments alcalins, soude caustique, carbonate de soude, phosphate trisodique ainsi que des agents détergents tensio-actifs.The treatment is followed by washing at 90 ° C - 95 ° C, 60 ° C and cold. The washing bath at 90 ° C - 95 ° C can advantageously include an addi tion of alkaline elements, caustic soda, sodium carbonate, trisodium phosphate as well as surfactant detergents.
Un des avantages du procédé suivant l'invention est de supprimer une opération de désencollage au mouillé effectuée à température minimum de 60°C - 65°C, ainsi que plusieurs bains de lavage à des températures de 90°C- 95°C.One of the advantages of the process according to the invention is that it eliminates a wet desizing operation carried out at a minimum temperature of 60 ° C - 65 ° C, as well as several washing baths at temperatures of 90 ° C - 95 ° C.
L'application du procédé supprime également une imprégnation «mouillé sur mouillé» c'est-à-dire tissu mouillé entrant dans un bain contenant les produits de blanchiment. Il est connu que ce traitement entraine nombre de contraintes: préparation d'un bain plus concentré, maintien du bain d'imprégnation à niveau et à concentrations constantes, ce qui implique soit un contrôle manuel, soit une régulation automatique.The application of the method also removes a “wet on wet” impregnation, that is to say wet tissue entering a bath containing the bleaching products. It is known that this treatment causes a number of constraints: preparation of a more concentrated bath, maintenance of the impregnation bath at level and at constant concentrations, which involves either manual control or automatic regulation.
Pour éviter l'imprégnation «mouillé sur mouillé», certains applicateurs n'hésitent pas à effectuer un passage intermédiaire sur rame sécheuse ce qui entraine l'utilisation d'un matériel coûteux et une consommation importante d'énergie surtout d'énergie calorifique.To avoid "wet-on-wet" impregnation, some applicators do not hesitate to make an intermediate passage on a drier which results in the use of expensive equipment and a significant consumption of energy, especially heat energy.
L'adoption du procédé suivant l'invention a donc pour conséquence des économies importantes en eau, vapeur, main d'oeuvre et investissement.The adoption of the process according to the invention therefore results in significant savings in water, steam, labor and investment.
Les caractéristiques du tissu ainsi traité sont excellentes: degré de blanc élevé, élimination de l'encollage pratiquement totale, hydrophilie instantanée, degré de polymérisation bien ménagé.The characteristics of the fabric thus treated are excellent: high degree of whiteness, elimination of almost total sizing, instant hydrophilicity, degree of well-managed polymerization.
Les exemples suivants illustrent l'invention de façon non limitative.The following examples illustrate the invention without limitation.
Un tissu de coton puceux de 195 g/m2, laize 182 centimètres, réflectance 55,3% mesurée au réflec- tomètre ELREPHO ZEISS filtre n° 8, longueur d'onde 457 nanomètres, taux d'amylacé 5,05% destiné à l'impression en colorants réactifs a été directement imprégné en écru dans un bain contenant:
Le tissu imprégné à 106% de son poids de bain est porté par vaporisage à la température de 95°C
- - 98°C - il est enroulé dans une chambre calorifugée où il reste en réaction pendant 1 h à 2 h.
- - 98 ° C - it is rolled up in an insulated chamber where it remains in reaction for 1 h to 2 h.
Après ce temps, il est déroulé et rincé en continu dans une série de bacs contenant de l'eau respectivement à 95°C, 50°C - 60°C et froide. Après séchage, les caractéristiques du tissu sont les suivantes:
Une popeline 100% coton - 143 g/mz - réflectance ELREPHO ZEISS 52,2% - Taux d'amidon: 7,6% - Indice de polymérisation: plus grand que 2700, a été directement imprégnée en écru dans un bain contenant:
Après vaporisage à 95°C, le tissu imprégné est enroulé dans une chambre calorifugée où il reste en réaction 1 à 2 h.After spraying at 95 ° C, the impregnated fabric is rolled up in a heat-insulated chamber where it remains in reaction for 1 to 2 hours.
Après lavage à la continue et séchage les carac- téristiaues du tissu sont les suivantes:
Une longotte écrue, 100% coton, 166 g/m2, réflectance ELREPHO ZEISS 51,9%, taux d'amidon 3,55%, indice de polymérisation: plus grand que 2700 a été traitée dans les conditions décrites ci- dessus.One ecru longotte, 100% cotton, 166 g / m 2 , ELREPHO ZEISS reflectance 51.9%, starch content 3.55%, polymerization index: greater than 2700 was treated under the conditions described above.
Le tissu blanchi a les caractéristiques suivantes:
Claims (1)
- Process for the simultaneous desizing and bleaching of fabrics, characterised in that the single operation of desizing-bleaching is carried out in a bath whose pH is between 10 and 10.5 and which contains hydrogen peroxide, sodium hydroxide, a sequestering agent, an enzymatic preparation based on a starch degradation enzyme, and a surfactant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT81402047T ATE10655T1 (en) | 1980-12-31 | 1981-12-22 | PROCESS FOR ONE-STAGE BLEACHING AND DECOATING OF TEXTILES IN A HYDROGEN PEROXIDE-BASED BATH. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8027866A FR2497244A1 (en) | 1980-12-31 | 1980-12-31 | METHOD FOR DEBRATING AND BLEACHING FABRICS IN A SINGLE OPERATION IN A HYDROGEN PEROXIDE BASED BATH |
| FR8027866 | 1980-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0055664A1 EP0055664A1 (en) | 1982-07-07 |
| EP0055664B1 true EP0055664B1 (en) | 1984-12-05 |
Family
ID=9249673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP81402047A Expired EP0055664B1 (en) | 1980-12-31 | 1981-12-22 | Process for simultaneously desizing and bleaching textiles in a bath based on hydrogen peroxide |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4457760A (en) |
| EP (1) | EP0055664B1 (en) |
| JP (1) | JPS57133272A (en) |
| KR (1) | KR850000812B1 (en) |
| AT (1) | ATE10655T1 (en) |
| BR (1) | BR8108543A (en) |
| CA (1) | CA1161378A (en) |
| DE (1) | DE3167666D1 (en) |
| ES (1) | ES8308950A1 (en) |
| FR (1) | FR2497244A1 (en) |
| IN (1) | IN155090B (en) |
| MA (1) | MA19360A1 (en) |
| OA (1) | OA06978A (en) |
| PT (1) | PT74217B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2543181B1 (en) * | 1983-03-22 | 1985-07-26 | Ugine Kuhlmann | IMPROVED SIMULTANEOUS DE-SIZING AND BLEACHING OF TISSUES |
| DE3346578A1 (en) * | 1983-12-23 | 1985-07-18 | Sandoz-Patent-GmbH, 7850 Lörrach | Composition and process for the single-bath single-stage alkaline pretreatment of cellulose-containing textile materials |
| US4772290A (en) * | 1986-03-10 | 1988-09-20 | Clorox Company | Liquid hydrogen peroxide/peracid precursor bleach: acidic aqueous medium containing solid peracid precursor activator |
| US4900469A (en) * | 1986-10-21 | 1990-02-13 | The Clorox Company | Thickened peracid precursor compositions |
| JPS63182469A (en) * | 1987-01-21 | 1988-07-27 | 第一工業製薬株式会社 | Continuous high pressure refining method |
| US4963157A (en) * | 1987-04-17 | 1990-10-16 | Nippon Peroxide Co., Ltd. | Method for bleaching cellulosic fiber material with hydrogen peroxide |
| US5196134A (en) * | 1989-12-20 | 1993-03-23 | Hughes Aircraft Company | Peroxide composition for removing organic contaminants and method of using same |
| ES2062748T3 (en) * | 1991-06-14 | 1994-12-16 | Procter & Gamble | STABLE BLEACHING COMPOSITIONS CONTAINING HYDROGEN PEROXIDE. |
| WO1997004160A1 (en) * | 1995-07-19 | 1997-02-06 | Novo Nordisk A/S | Treatment of fabrics |
| DE19603054A1 (en) | 1996-01-29 | 1997-08-14 | Bayer Ag | Enzyme mixtures and processes for the desizing of textiles sized with starch |
| JP2007009365A (en) * | 2005-06-30 | 2007-01-18 | Bikku Kk | Desizing/scouring/bleaching one-bath type treatment agent and chemical agent for making up the same |
| CN103046383B (en) * | 2012-11-27 | 2016-05-04 | 江南大学 | A kind of enzyme oxygen one is bathed cotton type fabric low temperature pre-treating method |
| CN108360275A (en) * | 2018-01-25 | 2018-08-03 | 石狮市瑞鹰纺织科技有限公司 | A kind of oxygen bleaching one-pass bath method for dyeing dyeing of cellulose fibre |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1267656B (en) * | 1957-07-20 | 1968-05-09 | Bayer Ag | Process for the simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites |
| DE1135857B (en) * | 1959-12-28 | 1962-09-06 | Benteler Werke Ag | Method for desizing woven and knitted fabrics and apparatus for carrying out the method |
| IT739960A (en) * | 1966-03-15 | |||
| CA921850A (en) * | 1969-08-15 | 1973-02-27 | The Procter & Gamble Company | Detergent composition containing an oxidizing bleach and proteolytic enzyme derived from thermophilic streptomyces rectus variety proteolyticus |
| GB1335984A (en) * | 1970-09-29 | 1973-10-31 | Ici Ltd | Treatment of textile materials |
| US3740188A (en) * | 1971-08-02 | 1973-06-19 | Fmc Corp | Simultaneous desize-scour-bleach with activated hydrogen peroxide |
| JPS5322595A (en) * | 1976-08-12 | 1978-03-02 | Dai Ichi Kogyo Seiyaku Co Ltd | Curing agent composition for polyurethane elastomer |
| DE2735816C3 (en) * | 1977-08-09 | 1981-08-13 | Basf Ag, 6700 Ludwigshafen | Process for desizing and bleaching textile goods |
-
1980
- 1980-12-31 FR FR8027866A patent/FR2497244A1/en active Granted
-
1981
- 1981-12-11 KR KR1019810004851A patent/KR850000812B1/en active
- 1981-12-22 DE DE8181402047T patent/DE3167666D1/en not_active Expired
- 1981-12-22 EP EP81402047A patent/EP0055664B1/en not_active Expired
- 1981-12-22 AT AT81402047T patent/ATE10655T1/en not_active IP Right Cessation
- 1981-12-22 MA MA19565A patent/MA19360A1/en unknown
- 1981-12-28 US US06/335,100 patent/US4457760A/en not_active Expired - Fee Related
- 1981-12-29 PT PT74217A patent/PT74217B/en not_active IP Right Cessation
- 1981-12-30 JP JP56216146A patent/JPS57133272A/en active Granted
- 1981-12-30 BR BR8108543A patent/BR8108543A/en unknown
- 1981-12-30 ES ES508472A patent/ES8308950A1/en not_active Expired
- 1981-12-30 CA CA000393403A patent/CA1161378A/en not_active Expired
- 1981-12-31 OA OA57579A patent/OA06978A/en unknown
- 1981-12-31 IN IN1482/CAL/81A patent/IN155090B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PT74217B (en) | 1986-06-26 |
| FR2497244A1 (en) | 1982-07-02 |
| FR2497244B1 (en) | 1983-02-04 |
| JPS57133272A (en) | 1982-08-17 |
| US4457760A (en) | 1984-07-03 |
| ATE10655T1 (en) | 1984-12-15 |
| BR8108543A (en) | 1982-10-19 |
| PT74217A (en) | 1982-01-01 |
| KR830007942A (en) | 1983-11-09 |
| IN155090B (en) | 1984-12-29 |
| OA06978A (en) | 1983-12-31 |
| ES508472A0 (en) | 1983-10-01 |
| KR850000812B1 (en) | 1985-06-14 |
| CA1161378A (en) | 1984-01-31 |
| MA19360A1 (en) | 1982-07-01 |
| DE3167666D1 (en) | 1985-01-17 |
| JPH022989B2 (en) | 1990-01-22 |
| ES8308950A1 (en) | 1983-10-01 |
| EP0055664A1 (en) | 1982-07-07 |
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