EP4010525B1 - Procédés de traitement de textiles avec de la mousse et processus associés - Google Patents

Procédés de traitement de textiles avec de la mousse et processus associés Download PDF

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Publication number
EP4010525B1
EP4010525B1 EP20850233.6A EP20850233A EP4010525B1 EP 4010525 B1 EP4010525 B1 EP 4010525B1 EP 20850233 A EP20850233 A EP 20850233A EP 4010525 B1 EP4010525 B1 EP 4010525B1
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EP
European Patent Office
Prior art keywords
foam
treatment
water
garments
washing machine
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EP20850233.6A
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German (de)
English (en)
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EP4010525A4 (fr
EP4010525A2 (fr
Inventor
Alfredo Cossiri
Luca Cappellini
Giovanni MAIANI
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Kemin Industries Inc
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Kemin Industries Inc
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    • 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
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/04—Processes in which the treating agent is applied in the form of a foam
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0093—Treatments carried out during or after a regular application of treating materials, in order to get differentiated effects on the textile material
    • D06B11/0096—Treatments carried out during or after a regular application of treating materials, in order to get differentiated effects on the textile material to get a faded look
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
    • D06B19/0088—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor
    • D06B19/0094—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00 using a short bath ratio liquor as a foam
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
    • D06B23/205—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for adding or mixing constituents of the treating material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
    • D06B5/26—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length using centrifugal force

Definitions

  • Industrial textile treatments on garments are generally performed using large washing machines loaded with garments and water.
  • Chemical products are added to perform a variety of treatments, including but not limited to desizing (removal of sizing starch), stonewashing (enzymatic), scouring, cleaning, and finishings. In most cases, the treatments require considerable amounts of water.
  • the chemical products are dissolved or mixed into a medium, usually water, in order to adequately disperse the substances produced during the process (e.g., the dispersion of the indigo dye released in the water during a stonewashing process) and to promote the interactions between the chemicals and the substrate.
  • the ratio of weight fabric to water ranges from 1:3 to 1:20.
  • Kemin Textiles and Auxiliaries have adopted a strategy of formulating chemicals with the least amount of toxicological and ecotoxicological aspects. Simultaneously, raw materials capable of performing at lower temperatures have been used to reduce energy costs (e.g., cellulases that exhibit their best performance at temperatures lower than 40°C).
  • each kg of garment requires at least one kg of a solution to be sprayed under the form of aerosol through nozzles.
  • Nozzles with great orifice diameter could be used to reduce spraying time but that would translate into drops that may cause unacceptable spots in garments.
  • spraying devices coupled with washing machines are equipped with nozzles having very small orifice diameter (for instance, less than 0.2 mm).
  • An industrial washing machine loaded with 50 Kg of garments typically requires from 30 to 50 minutes of continuous nebulization before the desired liquor ratio is reached and the treatment can start. That poses severe limitations in terms of productivity.
  • United States Patent Application 3,913,359 relates to the dyeing of a textile fabric.
  • a series of rollers stretches the fabric textile out and moves it through a box containing a dyeing mechanism and then through a box containing water to wash the textile.
  • the dyeing mechanism is a a nozzle that sprays a foam dye mixture onto the textiles as it is moved by the nozzle.
  • the present invention offers a new approach to the treatment of textiles or garments, including a system and related methods using foam as a carrier of chemical products.
  • these chemical products may include softeners, finishing agents, enzymes for stone wash or for discolorations, bleaching agents, and others readily known by those in the industrial treatment of garments.
  • the inventions as described herein drastically reduce the amount of water needed. This reduction of water translates into a considerable saving on the cost of energy and a reduction of carbon dioxide emissions.
  • the present invention offers numerous advantages over other systems based on sprays because it eliminates the concerns related to the nebulization of sensitizing agents, such as cellulase and other enzymes.
  • the present invention drastically reduces dead times since required solutions can be loaded in significantly lower time.
  • the present invention is also suitable for applications of suspensions of solid particles such as pigments or enzymes coated with non-soluble materials.
  • the presently disclosed invention improves on existing laundering processes and compositions, which translates into significant reductions in input and energy costs, as well as reducing the amount of carbon dioxide emissions.
  • the present invention relates to improved systems and related methods for laundering or treating garments in the textile industry.
  • the present invention relates to the treatment of textiles or garments, including novel systems and related methods using foam as a carrier of chemical products.
  • these chemical products may include softeners, finishing agents, enzymes for stone wash or for discolorations, bleaching agents, and others readily known by those in the industrial treatment of garments.
  • the presented method relies on foam as a carrier of the chemical products.
  • the invention is set out in the appended set of claims.
  • the composition is enriched with a specific foaming agent containing a suitable surfactant.
  • the foam Once the foam has been injected into the washing machine, it is easily spread over the garments by the simple mechanical action of the washing machine. Depending on the rotational speed of the drum and its geometry, it may take less than two minutes to obtain perfect homogenization of the foam on garments.
  • a given volume of solution requires less time to be injected as foam into a washing machine than would be necessary for the same volume to be injected utilizing conventional spraying systems.
  • Another aspect of the present disclosure includes a method of creating foam for textile treatment, including providing a system according to the invention, pumping a treatment solution into the first inlet of the T-junction, compressing air and urging the compressed air to the second inlet of the T-junction, combining the treatment solution and the compressed air in the T-junction, creating a treatment foam by urging the combination of treatment solution and compressed air through the amount of stainless steel sponge contained within the cartridge, and delivering the treatment foam to the washing machine drum.
  • the present invention relates to the treatment of textiles or garments, including novel systems and related methods using foam as a carrier of chemical products.
  • these chemical products may include softeners, finishing agents, enzymes for stone wash or for discolorations, bleaching agents, and others readily known by those in the industrial treatment of garments.
  • Another aspect of the present invention relates to a module and related processes for generating these foam treatments for textiles or garments, as generally depicted in FIG. 1 .
  • Minimal small aperture on the door or in the chassis
  • Energy savings heating of water
  • 30% to 95% 30% to 95%
  • Potential issues arising from inhalation of chemicals Yes No Versatility (non-homogeneous application on garments)
  • Minimal Yes Versatility real-time checks on garments as in traditional washing processes)
  • Yes Versatility application of non-soluble particles such as pigments or coated enzymes
  • the present invention may use at least one foaming agent that is used as a carrier of other chemicals used during the treatment of garments. As described in greater detail in Table 2, depending on the desired treatment, certain foaming agents may be more desirable than others. Persons of ordinary skill in the art would understand that a variety of foaming agents would be suitable and fall within the scope of the present invention.
  • the foaming agent is present in an amount of at least 1 g/L per kilogram of garment. For instance, according to at least one embodiment, the foaming agent is present in an amount ranging from about 6 to 100 g/L per kilogram of garment. Depending on the treatment or application, more than one foaming agent may be used. Table 2.
  • Tween 20 Non-ionic Tween 20 or Tween 80 can be used as "general purpose” foaming agents.
  • Composition CAS 9005-64-5 Sorbitan monolaurate, ethoxylated 20 EO Tween 20: 15% w/w; Tween 80: 15% w/w; They may represent the "first choice" carrier due to their favorable toxicological profile and due to their compatibility with cellulase enzyme formulations.
  • Non-ionic Amine Oxide can be used to produce foam with strong oxidizing agents, such as NaOCl Composition: Amine Oxide: 25% w/w; N-oxide: Water: 75% w/w CAS 3332-27-2 FOAMING AGENT #3 Sodium lauryl ether sulfate: Anionic Blends of SLES and Cocamide DEA may be used as foaming agents. Foam produced by SLES and Cocamide DEA may be used as carrier for chemicals having anionic or non-ionic charge. (i.e.
  • composition Sodium lauryl ether sulfate (SLES): 12% w/w; CAS 15826-16-1 Ethanolamine (DEA), 3 %w/w; Cocamide DEA: CAS 68603-42-9 Water: 85% w/w FOAMING AGENT #4 Dimethyl benzyl Cationic BAG may be used to produce foam that may act as a carrier for cationic dispersions of cationizing agents for dyeing processes.
  • Composition ammonium chloride: Benzalkonium chloride CAS 8001-54-5 (BAC): 50% w/w; Water: 50% w/w.
  • the composition further comprises at least one booster, which can be used to enhance the chemicals present in the composition and/or provide other benefits to the overall treatment process, for instance by shortening the treatment time.
  • at least one booster which can be used to enhance the chemicals present in the composition and/or provide other benefits to the overall treatment process, for instance by shortening the treatment time.
  • Another aspect relates to a foam composition that can be safely used to treat garments, where industrial laundry personnel can visually inspect the garment during the dyeing process without posing the safety issues present in known spraying applications.
  • the foam composition may allow for the door of the washing machine to be opened at any time during the process for inspections and to check on the garments. (See FIG. 2, 3 ). Similar inspections are not feasible on systems based on aerosols, where personnel could be exposed to toxic chemicals through inhalation of small droplets of water contaminated with the chemical agents.
  • Another advantage of the present invention is the versatility it affords in terms of possible treatments on garments.
  • the examples described in greater detail below are understood to be exemplary and are provided to emphasize the variety of images and treatments achievable using the present method.
  • the present invention provides versatility in terms of possible treatments on garments.
  • the examples described in greater detail below are understood to be exemplary and are provided to emphasize the variety of images and treatments achievable using the present method.
  • Table 3 contains the materials used throughout the experiment. Table 3. Materials used Material Supplier Model Lot # Laser equipment Sei Laser, Italy Flexi denim - Foam generating module Kemin Textiles s.r.l., San Marino Prototype (See Fig.1 ) - Washing Machine OMI, Italy LCF 16 ST - Denim garment (co 67%; poly 22%; vis 9.5%; ly 1.5%) Advance Denim, China QA149L5-5 Deep blue L - ATB 710 Kemin Textiles s.r.l., San Marino - 1901117806 Fortres GSL Kemin Textiles s.r.l., San Marino - 1807109646 Citric Acid Anhydrous Kemin Textiles s.r.l., San Marino - 1812111252 Foaming Agent #1 Kemin Textiles s.r.l., San Marino - - Tween 20 Industria Chimica Panzeri, Italy 8693 Tween 80 Industria Chimic
  • Denim garments five garment samples at 700 grams each, were treated with laser equipment (mode 01hs, resolution: 150.000 dpi on X-axis; 9.000 dpi on Y-axis) to mimic visual effects, such as strikes and lines on the denim.
  • laser equipment mode 01hs, resolution: 150.000 dpi on X-axis; 9.000 dpi on Y-axis
  • the garments were treated in the washing machine with an aqueous solution comprising: ATB 710 (liquid cellulase formulation able to perform abrasion at room temperature) 30 g/L; Fortres GSL (a dispersing agent based on non-ionic surfactants, added mainly to limit backstaining) 10 g/L; citric acid anhydrous (to achieve pH 6.0) 0.4 g/L; and Foaming agent #1 18 g/L.
  • Foaming agent #1 was prepared according to the example shown in Table 2.
  • composition was prepared and within 5 minutes of the initiation of the garment treatment, 700 grams of the foam (per kg of garment) were injected into the washing machine. The treatment with foam was performed in the washing machine for 45 minutes.
  • Table 5 contains the materials used throughout the experiment. Table 5. Materials used Material Supplier Model Lot # Laser equipment Sei Laser, Italy Flexi denim - Foam generating module Kemin Textiles s.r.l., San Marino Prototype (See Fig.1 ) - Washing Machine OMI, Italy LCF 16 ST - Denim garment (co 67%; poly 22%; vis 9.5%; ly 1.5%) Advance Denim, China QA149L5-5 Deep blue L - ATB 710 Kemin Textiles s.r.l., San Marino - 1901117806 Fortres GSL Kemin Textiles s.r.l., San Marino - 1807109646 Citric Acid Anhydrous Kemin Textiles s.r.l., San Marino - 1812111252 Foaming Agent #1 Kemin Textiles s.r.l., San Marino - - Foaming Agent #2 Kemin Textiles s.r.l., San Marino - 1901115746
  • Denim garments five garment samples at 700 grams each, were treated with laser equipment (mode 01hs, resolution: 150.000 dpi on X-axis; 9.000 dpi on Y-axis) to mimic visual effects, such as strikes and lines on the denim.
  • the garments were then treated with foam and liquid cellulase, following the methods described in Example 1.
  • hydroextraction with a centrifuge was performed in order to retain 550 grams of water for each kg of garment (pick-up 55%).
  • Foaming agent #2 was prepared according to the example shown in Table 2.
  • the composition was prepared and within 5 minutes of the initiation of the garment treatment, 1200 grams of the foam composition (per kg of garment) was injected into the washing machine. The bleaching process with foam was performed in the washing machine for 20 minutes.
  • Table 7 contains the materials used throughout the experiment. Table 7. Materials used Material Supplier Model Lot # Laser equipment Sei Laser, Italy Flexi denim - Foam generating module Kemin Textiles s.r.l., San Marino Prototype (See Fig.1 ) - Washing Machine OMI, Italy LCF 16 ST - Tumble dryer Lavenda L&TM, Italy ERV77 - Denim garment (co 67%; poly 22%; vis 9.5%; ly 1.5%) Advance Denim, China QA149L5-5 Deep blue L - Avol Evanix Kemin Textiles s.r.l., San Marino - 1901100834 Booster OW Kemin Textiles s.r.l., San Marino - 1807112479 Foaming Agent #1 Kemin Textiles s.r.l., San Marino - - Tween 20 Industria Chimica Panzeri, Italy 8693 Tween 80 Industria Chimica Panzeri, Italy 37061 Special White
  • Denim garments five garment samples at 700 grams each, were treated with laser equipment (mode 01hs, resolution: 150.000 dpi on X-axis; 9.000 dpi on Y-axis) to mimic visual effects, such as strikes and lines on the denim.
  • the garments were then bleached with foam and Avol Evanix through the process of treating the garments in a washing machine with an aqueous solution comprising: Avol Evanix, which is a sodium persulfate activator produced by Kemin Textiles s.r.l., 520 g/L; Booster OW (active substance: sodium persulfate) 86 g/L; and a Foaming agent #1 (24 g/L).
  • Avol Evanix which is a sodium persulfate activator produced by Kemin Textiles s.r.l., 520 g/L
  • Booster OW active substance: sodium persulfate
  • Foaming agent #1 24 g/L
  • composition was prepared and within 5 minutes of the initiation of the garment treatment, 700 grams of the composition (per kg of garment) were injected into the washing machine. The bleaching process with foam was performed in the washing machine for 15 minutes. Next, the garments were inserted into a tumble dryer at 70°C until dried. Once the garments were dry, the temperature was increased to 90°C and maintained for 10 minutes.
  • Table 9 contains the materials used throughout the experiment. Table 9. Materials used Material Supplier Model Lot # Laser equipment Sei Laser, Italy Flexi denim - Foam generating module Kemin Textiles s.r.l., San Marino Prototype (See Fig.1 ) - Washing Machine OMI, Italy LCF 16 ST - Denim garment (co 67%; poly 22%; vis 9.5%; ly 1.5%) Advance Denim, China QA149L5-5 Deep blue L - Avol ACT Kemin Textiles s.r.l., San Marino - 1811108799 Foaming Agent #1 Kemin Textiles s.r.l., San Marino - - Tween 20 Industria Chimica Panzeri, Italy 8693 Tween 80 Industria Chimica Panzeri, Italy 37061 Foaming Agent #2 Kemin Textiles s.r.l., San Marino - 1901115746 Special White LT Kemin Textiles s.r.l., San Marino
  • Denim garments five garment samples at 700 grams each, were treated with laser equipment (mode 01hs, resolution: 150.000 dpi on X-axis; 9.000 dpi on Y-axis) to mimic visual effects, such as strikes and lines on the denim.
  • Garments were treated with an application of Avol Act (NaOCl booster) by treating the garments in a washing machine with an aqueous solution comprising: Avol Act (a booster for sodium hypochlorite based on a quaternary ammonium compound) 100 g/L; and Foaming agent #1 (6 g/L).
  • the composition was prepared and within 5 minutes of the initiation of the garment treatment, 600 grams of the foam composition (per kg of garment) was injected into the washing machine. The application was performed in the washing machine for 15 minutes.
  • garments were bleached using sodium hypochlorite according to the following process: garments were treated in the washing machine with an aqueous solution comprising: Sodium hypochlorite 14% (250 g/L); Foaming agent #2 (100 g/L).
  • the composition was prepared and within 5 minutes of the initiation of the garment treatment, 1200 grams of the foam composition (per kg of garment) was injected into the washing machine. The application was performed in the washing machine for 30 minutes.
  • Example 5 Dyeing with pigments CPD (cold pigment dyeing) and foam
  • Table 11 contains the materials used throughout the experiment. Table 11. Materials used Material Supplier Model Lot # Laser equipment Sei Laser, Italy Flexi denim - Foam generating module Kemin Textiles s.r.l., San Marino Prototype (See Fig.1 ) - Washing Machine OMI, Italy LCF 16 ST - RTD white garments Advance Denim, China - - Geopower PFD Extra Kemin Textiles s.r.l., San Marino - 1902114698 Foaming Agent #1 Kemin Textiles s.r.l., San Marino - - Tween 20 Industria Chimica Panzeri, Italy 8693 Tween 80 Industria Chimica Panzeri, Italy 37061 Black BL Kemin Textiles s.r.l., San Marino - 1807113933 Linex Surf Kemin Textiles s.r.l., San Marino - 1901102627
  • the garments were treated in a washing machine with an aqueous solution comprising: Black BL (pigment) 6 g/L; and Foaming agent #1 (24 g/L).
  • composition was prepared and within 5 minutes of the initiation of the garment treatment 1250 grams (per kg of garment) were injected into the washing machine. The application was performed in the washing machine for 15 minutes, followed by hydroextraction (about 800 grams of water are left for each Kg of fabric).
  • the garments were then treated with a foaming composition comprising a fixing agent.
  • the garments were treated in the washing machine with an aqueous solution comprising: Linex Surf (cationizing agent/fixing agent) 80 g/L; and Foaming agent #1 (100 g/L).
  • the foaming composition containing a fixing agent was prepared and within 5 minutes of the initiation of the garment treatment, 1400 grams of the composition (per kg of garment) were injected into the washing machine. The application was performed in the washing machine for 10 minutes.
  • Example 6 Dyeing with direct dyes OVD (old vintage dyeing) and foam
  • Table 13 contains the materials used throughout the experiment. Table 13. Materials used Material Supplier Model Lot # Laser equipment Sei Laser, Italy Flexi denim - Foam generating module Kemin Textiles s.r.l., San Marino Prototype (See Fig.1 ) - Washing Machine OMI, Italy LCF 16 ST - Hydro-extractor CO.ME.VI, Italy ZP40 - RTD white garments Advance Denim, China - - Geopower PFD Extra Kemin Textiles s.r.l., San Marino - 1902114698 Foaming Agent #1 Kemin Textiles s.r.l., San Marino - - Tween 20 Industria Chimica Panzeri, Italy 8693 Tween 80 Industria Chimica Panzeri, Italy 37061 Black Deep C-D Kemin Textiles s.r.l., San Marino - 1901115576 FST 34 Kemin Textiles s.r.l., San Marino - 19021104
  • the garments were treated with an application of dyestuff with foam.
  • the garments were treated in a washing machine with an aqueous solution comprising: Black Deep C-D (direct dye) 10 g/L; and Foaming agent #1 (80 g/L).
  • the garments were then treated with a foam composition that contained a fixing agent.
  • the garments were treated in the washing machine with an aqueous solution comprising: FST 34 (fixing agent) 60 g/L; and Foaming agent #1 (80 g/L).
  • the foaming composition containing a fixing agent was prepared and within 5 minutes of the initiation of the garment treatment and 1600 grams of the foaming composition was injected into the washing machine. The application was performed in the washing machine for 10 minutes.
  • Example 7 Bleaching with peroxidase-based products and foam
  • Table 15 contains the materials used throughout the experiment. Table 15. Materials used Material Supplier Model Lot # Laser equipment Sei Laser, Italy Flexi denim - Foam generating module Kemin Textiles s.r.l., San Marino AFM15 - Washing Machine OMI, Italy LCF 16 ST - Tumble dryer Lavenda L&TM, Italy ERV77 - Hydro-extractor CO.ME.VI, Italy ZP40 - Denim garment (co 67%; poly 22%; vis 9.5%; ly 1.5%) Advance Denim, China QA149L5-5 Deep blue L - ATB710 Kemin Textiles s.r.l., San Marino - 1901117806 Fortres GSL Kemin Textiles s.r.l., San Marino - 1807109646 Citric Acid Anhydrous Kemin Textiles s.r.l., San Marino - 1812111252 Acetic Acid Merck, Germany - K32690263-345 Foaming Agent #1 Kemin Textiles
  • Denim garments five garments at 700 gram each, were treated with laser equipment (mode 01hs, resolution: 150.000 dpi on X-axis; 9.000 dpi on Y-axis) to mimic visual effects, such as strikes and lines on the denim.
  • the garments were then treated with foam and liquid cellulase, following the methods described in Example 1.
  • composition was prepared and within 5 minutes of the initiation of the garment treatment, 700 grams of the foam (per kg of garment) were injected into the washing machine. The treatment with foam was performed in the washing machine for 45 minutes.
  • the part of foam that has collapsed is removed.
  • garments were rinsed.
  • the first rinse was performed with water, in order to remove residues of chemicals from previous treatment, at a temperature of 28°C, for 3 minutes and rotation of 27 rpm.
  • the second rinse was performed with hydrogen peroxide 30%, 1g/L, to remove residues from previous laser and foam treatments, for 10 minutes, at the temperature of 40°C and 27 rpm of rotation.
  • Hydrogen peroxide had also the function of acting synergistically with the peroxidase to perform bleach in a subsequent step.
  • the rinses were followed by an hydroextraction with a centrifuge, in order to obtain a pick-up of 100% (1000 grams of water were left for each Kg of fabric).
  • the garments were treated in a washing machine with an aqueous solution comprising: peroxidase-based product (See Table 9), 7 g/L; Acetic Acid, 0.5 g/L; and Foaming agent #2, 100 g/L.
  • composition comprising the two products mentioned above was prepared and, within 5 minutes of the initiation of the garment treatment, 800 grams of the foam per kg of fabric were injected into the washing machine.
  • the present invention provides enhanced productivity compared to existing systems based on sprays.
  • the example described below is understood to be exemplary and is provided to emphasize the advantage in terms of productivity compared to existing methods aimed to save water consumption.
  • the prototype schematized in FIG.1 was modified substituting the peristaltic pump with a membrane pump with an adjustable flow rate (maximum 20 lit/min).
  • a solution consisting of 15 g/L of Foaming agent #1 was prepared according to the example shown in Table 2.
  • the modified prototype produced roughly 20 liters of foam in 18 seconds using one liter of the solution.
  • the adoption of pumps with increased flow-rate allows increasing significantly the volume of foam produced per unit of time, also reducing significantly the dose of foaming agent needed. Table 17.
  • the foam generating module or foam generator
  • the foam generating module has a T-junction with two inlets and one outlet.
  • the first inlet includes a liquid solution pumped to the T-junction.
  • the second inlet includes compressed air pumped to the T-junction.
  • the outlet takes the combination of the liquid solution and the compressed air and urges the combination through an outlet that includes a foam generating element, and then into a washing drum that has the textiles to be treated.
  • the first inlet includes a liquid mixture that is mechanically pumped to the T-junction.
  • the liquid mixture includes water, a foaming agent, and the chemical treatment intended to treat the textiles.
  • the liquid mixture or solution is held is a vessel such as a flask.
  • the liquid mixture is then pumped from the vessel to the T-junction via a pump.
  • This pump is preferably a peristaltic pump which is more sterile because it does not need extra valves or seals to function.
  • a suitable peristaltic pump is the Digital Peristaltic Pump PV from Bram Dosing Systems.
  • the pump may also be any other pump with or without an adjustable flow rate, a suitable venturi device, or a pulse pump if higher flow rates are needed for larger washing machines.
  • the second inlet is a line for compressed air. Ambient air is pulled in and compressed in an air compressor.
  • the compressed air is preferably compressed to about 6 bar, and urged through a flow rate regulator.
  • An example of a preferred flow rate regulator is the RFO-346 by Camozzi which has a nominal pressure of 6 bar.
  • the liquid mixture or solution of the first inlet and the compressed air of the second inlet are introduced in the T-junction.
  • the solution and the air are mixed and are then urged out of the outlet of the T-junction by the pressure of the solution from the pump and the pressure of the air from the compressor.
  • the outlet includes a PVC pipe or cartridge filled with stainless steel sponges.
  • the cartridge is preferably about 32 cm long and about 4.5 cm internal diameter.
  • the liquid solution and air mixture are urged through the sterile stainless steel sponges which creates a tremendous amount of turbulence within the mixture as it is urged through the sponges, which then creates the foam that is delivered to the textiles within the wash drum.
  • the present invention solves the problem of excessive use of water caused by nebulization systems.
  • nebulization systems small droplets of water are sprayed inside the washing machines.
  • the water droplets which act as a carrier of chemicals, can easily escape from the washing machines if they are not adequately sealed, or if operators open the door of the washing machine to perform checks on the textiles.
  • the washing machines require technical modifications to ensure proper sealing.
  • the inventors have addressed these problems through the present invention, which provides for a foam application that can remain inside the washing machine.
  • the potential inhalation of chemicals by employees remains a serious problem during garment treatment processes, particularly where employees frequently may be exposed to toxic fumes when checking on the garments during the conventional industrial laundering process.
  • This concern can be addressed by the present invention, e.g. through structural modifications on washing machines, as described herein.
  • the any traditional washing machine could be easily adapted in order to work with the new system and coupled with an external module that has the purpose to produce foam with different densities, in different amounts, and with different amounts of chemicals dispersed, by simply adjusting the pressures of the first or second inlets, and by varying the density and amount of stainless steel sponge.
  • No special or expensive dedicated washing machines (sealed washing machines) are required.
  • the cost of the hardware is consistently lower than other system that have the aim to save water and energy.
  • the module of the present invention may also be designed to fit internally in and integrally with a washing machine..
  • the term "coupled” in all of its forms, couple, coupling, coupled, etc. generally means the joining of two components (electrical or mechanical) directly or indirectly to one another. Such joining may be stationary in nature or movable in nature. Such joining may be achieved with the two components (electrical or mechanical) and any additional intermediate members being integrally formed as a single unitary body with one another or with the two components. Such joining may be permanent in nature or may be removable or releasable in nature unless otherwise stated.
  • elements shown as integrally formed may be constructed of multiple parts or elements shown as multiple parts may be integrally formed, the operation of the interfaces may be reversed or otherwise varied, the length or width of the structures and/or members or connector or other elements of the system may be varied, the nature or number of adjustment positions provided between the elements may be varied.
  • the elements and/or assemblies of the system may be constructed from any of a wide variety of materials that provide sufficient strength or durability, in any of a wide variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of the present innovations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Detergent Compositions (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Claims (12)

  1. Système comprenant un lave-linge et un module de création d'un traitement moussant pour vêtements, le module comprenant :
    une jonction en T comprenant une première entrée, une seconde entrée et une sortie ;
    une première conduite d'entrée reliée fluidiquement à la première entrée et comprenant une cuve contenant une solution, reliée fluidiquement à une pompe ;
    une seconde conduite d'entrée reliée fluidiquement à la seconde entrée et comprenant un compresseur d'air et un régulateur de débit ; et
    une conduite de sortie comportant une première extrémité reliée fluidiquement à la sortie, une seconde extrémité opposée à la première extrémité, et une cartouche entre les première et seconde extrémités et comportant une quantité d'éponge en acier inoxydable,
    dans lequel la seconde extrémité de la cartouche est disposée à l'intérieur d'un tambour du lave-linge.
  2. Système selon la revendication 1, dans lequel le compresseur d'air est configuré pour comprimer l'air jusqu'à environ 6 bars.
  3. Système selon la revendication 1 ou la revendication 2, dans lequel la pompe est une pompe péristaltique.
  4. Système selon l'une quelconque des revendications précédentes, dans lequel le régulateur de débit comporte une pression nominale d'environ 6 bars.
  5. Système selon l'une quelconque des revendications précédentes, dans lequel la cartouche mesure environ 32 cm de long.
  6. Système selon l'une quelconque des revendications précédentes, dans lequel la cartouche a un diamètre interne d'environ 4,5 cm.
  7. Système selon l'une quelconque des revendications précédentes, dans lequel le système comprend la solution, la solution comprenant une quantité d'eau, une quantité d'agent moussant et une quantité de produits chimiques de traitement.
  8. Système selon l'une quelconque des revendications précédentes, dans lequel la cartouche est en PVC.
  9. Procédé de création de mousse pour le traitement de textiles, comprenant les étapes de :
    fourniture d'un système selon l'une quelconque des revendications 1 à 6 ou 8 et dépendant des revendications 1 à 6 ;
    pompage d'une solution de traitement dans la première entrée de la jonction en T ;
    compression de l'air et poussée de l'air comprimé vers la seconde entrée de la jonction en T ;
    combinaison de la solution de traitement et l'air comprimé dans la jonction en T ;
    création d'une mousse de traitement en poussant la combinaison de la solution de traitement et d'air comprimé à travers la quantité d'éponge en acier inoxydable contenue dans la cartouche ; et
    délivrance de la mousse de traitement au tambour du lave-linge.
  10. Procédé selon la revendication 9, dans lequel l'étape de pompage est réalisée par une pompe péristaltique.
  11. Procédé selon la revendication 9 ou la revendication 10, dans lequel l'étape de compression d'air comprime l'air à 6 bars.
  12. Procédé selon l'une quelconque des revendications 9 à 11, dans lequel la solution de traitement comprend une quantité d'eau, une quantité d'agent moussant et une quantité de produits chimiques de traitement.
EP20850233.6A 2019-08-08 2020-08-07 Procédés de traitement de textiles avec de la mousse et processus associés Active EP4010525B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962884543P 2019-08-08 2019-08-08
PCT/US2020/045446 WO2021026475A2 (fr) 2019-08-08 2020-08-07 Procédés de traitement de textiles avec de la mousse et processus associés

Publications (3)

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EP4010525A2 EP4010525A2 (fr) 2022-06-15
EP4010525A4 EP4010525A4 (fr) 2022-10-05
EP4010525B1 true EP4010525B1 (fr) 2024-05-01

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Country Status (6)

Country Link
EP (1) EP4010525B1 (fr)
CN (1) CN112639205A (fr)
BR (1) BR112022002093A2 (fr)
MA (2) MA56133A (fr)
TW (1) TW202122657A (fr)
WO (1) WO2021026475A2 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1948568A (en) * 1930-04-28 1934-02-27 Faber Engineering Company Method of treating textile materials and the like
CA934504A (en) * 1969-06-23 1973-10-02 W. Ford George Foaming agent for cellular concrete composed of wood rosin
GB1342019A (en) * 1971-05-13 1973-12-25 Pegg S & Son Ltd Textile treatment process and apparatus
US3913359A (en) * 1972-06-22 1975-10-21 Rca Corp Dyeing station in an apparatus for continuously dyeing fibrous material
US4555019A (en) * 1981-11-10 1985-11-26 The Procter & Gamble Company Packaged detergent composition with instructions for use in a laundering process
US5435809A (en) * 1991-03-12 1995-07-25 Dexter Chemical Corp. Method of obtaining color effects on fabric or garments using foam carriers and cellulase enzymes
FR2743515A1 (fr) * 1996-01-11 1997-07-18 Messageot Erick Dispositif permettant le nettoyage de differents supports notamment verticaux au moyen d'un procede distribuant une solution lavante a l'etat moussant
US8931310B2 (en) * 2006-05-11 2015-01-13 General Electric Company Bulk dispensing system for washing machine
US20100011511A1 (en) * 2007-02-20 2010-01-21 Novozymes A/S Enzyme Foam Treatment For Laundry
DE102007028213A1 (de) 2007-06-20 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine und Verfahren zur Behandlung von Wäsche mit Schaum
BRPI0921846A2 (pt) * 2008-11-17 2016-01-12 Novozymes As método para limpar um objeto, e para enxaguar um objeto
EP2260937A1 (fr) * 2009-06-12 2010-12-15 DSM IP Assets B.V. Dispositif de traitement et de conditionnement de matériel transporté grâce au dispositif
CN103191880B (zh) * 2013-03-19 2015-05-06 北京银河之舟环保科技有限公司 用于洗涤、消毒和灭菌的可控泡沫清洗方法及设备
KR101903594B1 (ko) * 2017-04-07 2018-10-02 오토앤 주식회사 세차용 거품 발생기 및 이를 구비한 거품 도포 장치

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MA55831B2 (fr) 2023-12-29
MA56133A (fr) 2022-04-13
CN112639205A (zh) 2021-04-09
WO2021026475A3 (fr) 2021-04-08
MA55831A1 (fr) 2022-11-30
EP4010525A4 (fr) 2022-10-05
TW202122657A (zh) 2021-06-16
EP4010525A2 (fr) 2022-06-15
BR112022002093A2 (pt) 2022-04-19
WO2021026475A2 (fr) 2021-02-11

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