WO2007113579A1 - Modulation du ph dans le traitement d'un tissu - Google Patents

Modulation du ph dans le traitement d'un tissu Download PDF

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Publication number
WO2007113579A1
WO2007113579A1 PCT/GB2007/001287 GB2007001287W WO2007113579A1 WO 2007113579 A1 WO2007113579 A1 WO 2007113579A1 GB 2007001287 W GB2007001287 W GB 2007001287W WO 2007113579 A1 WO2007113579 A1 WO 2007113579A1
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WO
WIPO (PCT)
Prior art keywords
fabric
borate
alkali metal
cellulosic
ammonium
Prior art date
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Ceased
Application number
PCT/GB2007/001287
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English (en)
Inventor
Michael John Greenhill-Hooper
Violeta Krasteva Doukova
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US Borax Inc
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US Borax Inc
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Filing date
Publication date
Application filed by US Borax Inc filed Critical US Borax Inc
Publication of WO2007113579A1 publication Critical patent/WO2007113579A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/66—Natural or regenerated cellulose using reactive dyes
    • 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
    • D06M11/40—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table combined with, or in absence of, mechanical tension, e.g. slack mercerising
    • 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
    • D06M11/80—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 boron or compounds thereof, e.g. borides
    • D06M11/82—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 boron or compounds thereof, e.g. borides with boron oxides; with boric, meta- or perboric acids or their salts, e.g. with borax
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D06P1/67316—Acids

Definitions

  • This invention relates to the treatment of fabric, particularly cellulosic and cotton fabric, in which the pH in the treatment liquor is controlled. Most particularly the invention relates to the control of pH of the treatment liquor employed in the dyeing of cotton and cellulosic fabrics with reactive dyes.
  • the present invention is applicable to for example scouring and mercerisation of cellulosic or cotton fabrics.
  • the pH has to be high enough for the reaction between the dye and the fabric to proceed at an adequately fast rate at a practical dyeing temperature, but not so high as to favour the competing and wasteful dye hydrolysis reaction that can occur in the dye bath.
  • pH buffers are essentially salts of strong acids and weak bases, or vice versa.
  • mildly acidic buffers include ammonium sulphate and ammonium acetate, while sodium acetate is often employed as a mildly basic buffer.
  • Phosphate buffers for example based on orthophosphate or pyrophosphate, are able to operate over a wide pH range (2.5-11).
  • pH range 2.5-11
  • the deliberate adjustment of pH during the dyeing process brought about by chemical means, and often triggered by changes in temperature, relies on the evaporation of volatile acid and base components of buffer systems, or on the use of hydro lysable esters to release acid.
  • soda ash sodium carbonate
  • pH buffer for the dye bath, where pH requires to be maintained in the range 11 -11.5 for optimum results. It is a cheap material and the fact that the pH of dilute solutions of sodium carbonate ranges between 11.5 and 11.8, coupled with its optimum buffering performance in solution at around pH 10.3, makes it very suitable for this application. Nevertheless, there are drawbacks associated with its use. It is a solid alkali that requires to be dissolved properly before use to avoid blocking feed lines and spotting on textiles. This necessitates the use of pre-mixing tanks.
  • the alkali is supplied in sacks that have to be manually handled and the correct number emptied into the tanks, exposing the possibility of wrong dosing and spillage due to human error.
  • the empty sacks require disposal.
  • silicate-based formulated liquid alkalis are disclosed in US 5372611. These again optionally contain minor amounts of borates (metaborate, perborate). Silicate based products, however, may suffer from drawbacks, notably the formation of insoluble magnesium silicate residues, which are difficult to remove from the dyed textile.
  • GB-A- 2006837 discloses the use of more concentrated alkali metal silicate solutions in combination with low levels of alkali metal borates for the continuous pad-batch dyeing or printing of reactive dyes onto cellulosic materials.
  • Padding is a process that involves mechanically applying the dye to the fabric, drying and then applying salt and alkali to bring about fixation.
  • pad processes employ very little water and consequently more concentrated solutions.
  • an aqueous borate- containing alkali solution for the control of pH in particular, in the 10 to 12.5 range, especially 11 to 12.5, e.g. 11 to 11.5 in the treatment of fabric, especially cellulosic and cotton textiles, under alkaline conditions, most particularly by dyeing, scouring and mercerisation.
  • the present invention provides an alternative to the previous methods discussed above and which may avoid or mitigate disadvantages discussed above.
  • a process for the treatment of fabric under alkaline conditions comprises treating the fabric with a treatment liquor to which has been added an aqueous alkali solution comprising (i) 9 to 36 wt % of a borate selected from an alkali metal and ammonium borate, or boric acid, and
  • a process for the treatment e.g. by dyeing, scouring or mercerisation, of a cellulosic or cotton fabric which process comprises treating the fabric with a treatment liquor to which has been added an aqueous alkali solution comprising
  • the aqueous alkali solution used according to the invention preferably has the following composition
  • a weak acid preferably an organic weak acid, with a pKa in the range 10 to 11.8;
  • the weak acid is generally used in an amount up to 20 wt %, suitably 1 to 20 wt %, and preferably 3 to 10 wt %.
  • the presence of the weak acid further increases the buffering capacity of the alkali solution for the liquor to treat the textile in the high pH range of interest.
  • auxiliary ingredients used include for example biocides, anti-foaming agents, wetting agents, humectants, sequestrants and suspension aids.
  • the borate used according to the invention is preferably borax pentahydrate.
  • the aqueous alkali solution used suitably has a dissolved solids content of 35 to 55 wt %.
  • the pH of the treatment liquor is suitably controlled in the range 10.5 to 12.5, preferably 11.0 to 12.5.
  • Fabrics which may be treated according to the present invention include cellulosic and cotton fabrics.
  • the cellulosic fabrics include those made from cellulosic fibres, including viscose, lyocell and modal.
  • the cellulosic and cotton fabrics include fabrics made from blends of these materials with synthetic fibres e.g. polyester, polyamide, polyacrylonitrile.
  • Typical blends include both cotton/cellulosic-rich blends (e.g. 85:15 or 60:40), synthetic rich blends e.g. polyethylene terepthalate/cotton blends such as 67:33 as well as 50:50 blends.
  • the fabrics treated according to the present invention may also contain elastane and include for example cotton/elastane blends.
  • the process according to the present invention may also be applicable to other kinds of fabrics which may be subject to treatment under alkaline conditions, such as the treatment of polyester and polyester/cellulosic blends, which may be treated for example by reduction clearing of disperse dyes from the fabric surface.
  • a process for the scouring of cellulosic or cotton fabric comprises adding to the scouring bath containing water, surfactant and the fabric to be scoured an aqueous alkali solution used in accordance with the present invention and heat treating.
  • a process for the mercerisation of cellulosic or cotton fabric comprises adding to the mercerisation bath an aqueous alkali solution used in accordance with the present invention.
  • a process for fixing dye, generally reactive dye, to cotton or cellulosic fabric which process comprises adding to dye process liquor applied to the cellulosic or cotton fabric an aqueous alkali solution used according to the invention.
  • the dyeing process can be a batch, semi-continuous, continuous or printing process.
  • the solutions used according to the present invention when added at low levels to a dye bath, along with the appropriate levels of salt and reactive dyes, are able to maintain dye bath pH in the optimum range for the dyeing of reactive dyes onto textiles and facilitate excellent dyeing results.
  • the dyeing results obtained are characterised by their high colour yields on the textile for individual dyes, at least matching those obtained when soda ash is used as the alkaline buffer at much higher levels.
  • use of the solution used according to the present invention results in only minor and often insignificant (instrumental and visual) differences compared with the use of soda ash in terms of total colour (lightness and hue).
  • the types of reactive dyes that can be dyed successfully onto cotton or cellulosic fabrics when employing the compositions of this invention as the dye bath buffer and alkaline agent include all the major and commercially important classes of reactive dyes. These include both mono-functional and bi-functional reactive dyes. Examples of mono-functional dyes include, but are not limited to, those containing the following reactive groups: dichlorotriazine, aminochlorotriazine, aminofluorotriazine, trichloropyrimidine, chlorodifluoropyrimidine, dichloroquinoxaline, sulphatoethylsulphone and sulphatoethylsulphonamide.
  • Bi- functional dyes include, but are not limited to, those containing the following combinations of functional groups: bis(aminochlorotriazine) - 'bis MCT', bis(sulphatoethylsulphone) - 'bis SES', bis(aminonicotinotriazine), aminochlorotriazine-sulphatoethylsulphone - 'MCT/SES' and aminofiuorotriazine- sulphatoethylsulphone.
  • Bi-functional reactive dyes include C.I. Reactive Black 5 (Everzol / Remazol Black B), C.I. Reactive Yellow 176 (Everzol / Remazol Yellow 3RS), C.I.
  • Reactive Red 239 (Everzol / Remazol Br. Red 3BS), C.I. Reactive Yellow 84 (Evercion / Procion Yellow H-E4R), CL Reactive Red 141 (Evercion / Procion Red H-E7B) and C.I. Reactive Blue 171 (Evercion / Procion Navy H-ER).
  • Hot dyeing is typically carried out at around 80°C, while warm dyeing employs temperatures in the range 40 to 60°C.
  • Dye levels on the fabrics (depths of shade from) can range from 0 to 10%, based on the weight of fabric.
  • the dye molecules develop negative charges at the high pHs operating in the dye bath (they contain weak acid groups that have pKa values around 10-12) and these groups therefore ionise in the corresponding pH range (10-12).
  • the cellulose in the cotton also ionises (OH groups lose protons) under these conditions and this is necessary for the eventual chemical reaction between the dye and the fabric ("fixation"). Therefore there is an electrostatic repulsion between the dye molecules and the fabric and in order for the dyes to exhaust/adsorb onto the fabric, this charge repulsion has to be damped down or screened and this is typically accomplished by the addition of salt.
  • the formulated liquid alkali solution used according to the present invention comprises a source of borate, selected from an alkali metal or ammonium borate or boric acid.
  • the alkali metal is preferably sodium or potassium.
  • Sodium is preferred because of the low cost and good availability of sodium borates.
  • Disodium tetraborate pentahydrate (borax pentahydrate) is the most preferred alkali metal borate, but disodium tetraborate decahydrate, disodium octaborate, sodium pentaborate and sodium metaborate can also be employed as can potassium pentaborate and potassium tetraborate.
  • Ammonium pentaborate is an example of a non-metal borate that can also be used.
  • the other major component of the liquid alkali composition is an alkali metal, ammonium or or organo-quarternary ammonium hydroxide.
  • Preferred hydroxides are those of sodium or potassium, but can include also tetraalkylammonium hydroxides, for example tetramethylammonium hydroxide.
  • Example combinations of borates and alkali metal hydroxides include, but are not restricted to, boric acid / sodium hydroxide, boric acid / potassium hydroxide and borax pentahydrate / potassium hydroxide.
  • boric acid / sodium hydroxide boric acid / potassium hydroxide
  • borax pentahydrate / potassium hydroxide boric acid / sodium hydroxide
  • the percentage by weight of the total liquid alkali composition that borate or hydroxide components comprise can be defined in terms of maximum and minimum values. These are listed in Table 1.
  • the figures in brackets define the compositional limits of more preferred narrowly defined ranges.
  • a weak acid with a pKa in the range 10 to 11.8 is optional to include.
  • This can be an inorganic or organic weak acid. When included, it comprises up to 20 wt %, suitably 1 to 20 wt %, and preferably less than 10wt.% e.g. 3 to 10 wt % of the liquid alkali composition.
  • suitable weak acids include ⁇ -aminobutyric acid, methylaminobutyric acid and ascorbic acid.
  • the weak acid increases the buffer capacity of the composition in the pH region of interest, but its use is not essential. Generally speaking a weak acid is only needed when the borate content is less than 10 wt% and is beneficial when the borate content is below about 15 wt%. Above 15 wt % borate, generally speaking no weak acid is required.
  • auxiliary ingredients can be included in the liquid alkali compositions used according to the present invention.
  • auxiliary ingredients may be de-foamers based on silicone chemistry, low foaming surfactants based on PO/EO block copolymers; wetting agents such as nonylphenol ethoxylates, phosphated alcohol ethoxylates, ethoxylated linear alcohols, alkylbenzene sulphonates, sodium sulpho succinates and 2-ethylhexyl sulphosuccinate; biocides such as dithiocarbamates and isothiazolines; anti-settling agents such as alginates, humectants such as urea, and sequestrants such as EDTA and polyphosphonates.
  • the balance of the formulation comprises demineralised water.
  • liquid alkali compositions used according to the present invention may be further characterised by being true solutions, exhibiting at worst a minimal tendency for the dissolved components to crystallise out on storage in the temperature range 0 to 40°C, even after several months storage in well sealed containers. They are free flowing, of a low viscosity and are also colourless. They generally have a total dissolved solids content in the range 35 to 55 wt.%
  • the liquid alkali compositions used according to the present invention may be added to the dye liquor at a level between 1 and 1 Og/1, the exact amount depending on the amount of dye applied to the fabric in the dyeing process.
  • the amount applied is referred to as the depth of shade and represents the amount of dye present in the dye bath expressed as a percentage of the weight of fabric to be dyed.
  • Table 2 provides guidance as to the amount of liquid alkali compositions of the present invention to employ at various depths of shade, from light through medium to heavy.
  • liquid alkali compositions used according to the present invention are particularly suitable for use in exhaust batchwise dyeing of cotton and cellulosic textiles (involving the complete immersion of the textile to be dyed in a solution of the dye), but can also be employed at higher concentrations in continuous and semi- continuous pad applications.
  • a liquor to fabric ratio of between 1 : 1 and 20: 1 is employed, preferably in the range 5:1 and 15:1, more preferably in the range 8:1 to 12:1 and most preferably 10:1.
  • a typical exhaust dyeing procedure involving the liquid alkali of the present invention and warm dyeing reactive dyes, alone or as trichromatic combinations, comprises the following general procedure.
  • the fabric to be dyed is added to the dye bath liquor containing the required amount of dye and a quantity of common salt
  • the procedure for dyeing with hot dyeing dyes is similar, except that the bath temperature is typically 80°C, and the level of salt added to effect exhaustion typically lies in the range 45-90g/l.
  • the level of salt added to effect exhaustion typically lies in the range 45-90g/l.
  • much larger amounts of the alkali solution used according to the invention are used. Such amounts could be up to 100 g/1 or even up to 200 g/1.
  • C Soda ash
  • D CIBATEX SA-200 (ex Ciba Speciality Chemicals), a commercial inorganic alkali and salts composition containing 10 to 15 wt % potassium hydroxide, 5 to 8 wt% sodium hydroxide and 5 to 10 wt % sodium silicate and having a measured dried solids content of 38.4 wt%
  • dye yield on the fabric representing the amount of dye fixed to the fabric after the exhaustion, fixation and rinsing steps
  • the measured percentage reflectance value of the dyed fabric at the wavelength of minimum reflectance, relative to that of a perfect white diffuser is used to calculate the so-called Kubelka-Munk value, K/S, using the following equation:
  • K/S defines the colour yield on the fabric.
  • spectrophotometric measurements yield values for ⁇ E, the total colour difference, ⁇ L, the lightness difference and ⁇ h, the hue difference between pairs of results, according to the CIE Colour Space.
  • Example was repeated for different concentrations of Formulation A, with Formulation B and, by way of comparison, with soda ash and Cibatex SA-200.
  • Dye C.I. Reactive Red 239 (Everzol / Remazol Br. Red 3BS)
  • Dye C.I. Reactive Yellow 84 (Evercion / Procion Yellow H-E4R) The procedure in example 1 was repeated, except that the temperature employed for the exhaustion and fixation steps was 8O 0 C, rather than 6O 0 C. The following results were obtained.
  • Dye C.I. Reactive Red 141 (Evercion / Procion Red H-E7B)
  • the two borate-based liquid alkalis of the present invention give colour yields that closely match those obtained with soda ash, but at a fraction of the concentration.
  • Hot dyeing reactive red dyes of this type can be prone to desorption, wasteful hydrolysis, reduced levels of fixation, or uneven dyeing, when strong alkali is added. This is known to occur, for example if caustic soda is employed as the alkali. This effect was not observed with the liquid alkali formulations of this invention.
  • the performance of the borate liquid alkali formulations also closely matches that of the commercial liquid alkali product, Cibatex SA-200.
  • Dye warm dyeing trichromatic combination - 20% C.I. Reactive Black 5 (Everzol / Remazol Black B), 60% C.I. Reactive Yellow 176 (Everzol / Remazol Yellow 3RS), 20% C.I. Reactive Red 239 (Everzol / Remazol Br. Red 3BS)
  • Dye hot dyeing trichromatic combination - 60% C.I. Reactive Yellow 84 (Evercion / Procion Yellow H-E4R), 25% C.I. Reactive Red 141 (Evercion / Procion Red H- E7B) and 15% C.I. Reactive Blue 171 (Evercion / Procion Navy H-ER)
  • liquid alkali products behave very like soda ash, being able to match the colour (hue and lightness), except at the higher depths of shade, where unit values for ⁇ E and ⁇ h, exceed 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Coloring (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

Cette invention concerne le traitement d'un tissu, notamment d'un tissu cellulosique et en coton, le pH du liquide de traitement pouvant être modulé. Le procédé de traitement d'un tissu dans des conditions alcalines selon la présente invention comprend le traitement du tissu avec une solution de traitement à laquelle à été ajoutée une solution alcaline aqueuse comprenant (i) 9 à 36 % en poids d'un borate choisi parmi les borates d'ammonium et de métal alcalin ou l'acide borique ; et (ii) 8 à 35 % en poids d'au moins un métal alcalin, ammonium ou hydroxyde d'organo ammonium quaternaire. La présente invention constitue une alternative aux procédés existants et permet d'éviter ou de limiter les inconvénients associés aux procédés existants.
PCT/GB2007/001287 2006-04-06 2007-04-05 Modulation du ph dans le traitement d'un tissu Ceased WO2007113579A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0606990A GB0606990D0 (en) 2006-04-06 2006-04-06 Control of ph in the treatment of fabric
GB0606990.0 2006-04-06

Publications (1)

Publication Number Publication Date
WO2007113579A1 true WO2007113579A1 (fr) 2007-10-11

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AR (1) AR060302A1 (fr)
GB (1) GB0606990D0 (fr)
TW (1) TW200804645A (fr)
WO (1) WO2007113579A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8097047B2 (en) * 2008-04-02 2012-01-17 The Procter & Gamble Company Fabric color rejuvenation composition
CN117661341A (zh) * 2023-11-30 2024-03-08 多恩生物科技有限公司 温和安全高色光稳定的pH缓冲体系及其制备方法和应用

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI630305B (zh) * 2016-12-29 2018-07-21 怡凌股份有限公司 混紡織物的染色方法
CN110699983B (zh) * 2019-10-29 2022-01-04 太仓宝霓实业有限公司 活性染料染色促进剂组合物及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903388A (en) * 1958-08-30 1962-08-15 Osuuskunta Metsaliitto Method of making cellulosic materials fireproof
EP0100043A2 (fr) * 1982-07-29 1984-02-08 Bayer Ag Procédé de fabrication de préparations de colorants azoiques réactifs, pauvres en sel
US4555348A (en) * 1984-06-28 1985-11-26 Sybron Chemicals Inc. Liquid buffer system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903388A (en) * 1958-08-30 1962-08-15 Osuuskunta Metsaliitto Method of making cellulosic materials fireproof
EP0100043A2 (fr) * 1982-07-29 1984-02-08 Bayer Ag Procédé de fabrication de préparations de colorants azoiques réactifs, pauvres en sel
US4555348A (en) * 1984-06-28 1985-11-26 Sybron Chemicals Inc. Liquid buffer system
EP0165079A2 (fr) * 1984-06-28 1985-12-18 Sybron Chemicals Inc Systèmes liquides tampon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8097047B2 (en) * 2008-04-02 2012-01-17 The Procter & Gamble Company Fabric color rejuvenation composition
CN117661341A (zh) * 2023-11-30 2024-03-08 多恩生物科技有限公司 温和安全高色光稳定的pH缓冲体系及其制备方法和应用

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TW200804645A (en) 2008-01-16
GB0606990D0 (en) 2006-05-17
AR060302A1 (es) 2008-06-04

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