EP0275432A1 - Verfahren, um Jeansbekleidung auszubleichen und ihr ein verschlissenes Aussehen zu geben - Google Patents
Verfahren, um Jeansbekleidung auszubleichen und ihr ein verschlissenes Aussehen zu geben Download PDFInfo
- Publication number
- EP0275432A1 EP0275432A1 EP87117816A EP87117816A EP0275432A1 EP 0275432 A1 EP0275432 A1 EP 0275432A1 EP 87117816 A EP87117816 A EP 87117816A EP 87117816 A EP87117816 A EP 87117816A EP 0275432 A1 EP0275432 A1 EP 0275432A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sand
- fabric
- granular material
- fact
- bleaching agent
- 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.)
- Withdrawn
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/203—Laundry conditioning arrangements
-
- 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
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/15—Locally discharging the dyes
- D06P5/153—Locally discharging the dyes with oxidants
-
- 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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/15—Locally discharging the dyes
- D06P5/158—Locally discharging the dyes with other compounds
-
- 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
- D06P7/00—Dyeing or printing processes combined with mechanical treatment
Definitions
- This invention refers to a method for artificial aging and bleaching of fabric in general, especially denim fabric and the like, which can produce a "weathered" look, that is to say light and dark areas finely interspersed evenly over all the fabric.
- the invention also pertains to the fabric processed according to the invention and to the granular agent or mix of granular agents with a bleaching agent to be used in the method claimed.
- denim fabric is sometimes aged artificially and bleached by washing the original fabric for a prolonged period of time together with pumice, which is sometimes impregnated with a bleaching agent.
- the fabric is aged and bleached by actually wearing it out by washing it for at least an hour with pieces of pumice, with a cloth-pumice ratio of 1:1 or 1:2 by weight.
- the final result is a slight, even bleaching of the fabric.
- a second method basically similar to the first, consists of washing the fabric for up to three hours, which also bleaches the fabric evenly, although of course resulting in a lighter colour.
- the fabric is aged and bleached by large spots by tumbling the fabric with pieces of pumice impregnated with a bleaching agent, such as sodium hypochlorite, potassium permanganate or other suitable compound.
- a bleaching agent such as sodium hypochlorite, potassium permanganate or other suitable compound.
- the pumice is soaked in the bleach for a while and is then left to drip dry for several hours, after which it is air or spin dried. The process ends with a neutralizing bath.
- the pumice releases the bleach as it wears off due to friction, thus aging and bleaching the fabric at the points where the pumice is in more frequent contact with it.
- the cloth-pumice ratio is around 1:1 or 1:2 in these cases also.
- the fabric is tumbled together with the pumice for about one or two hours.
- An object of this invention is to provide a method for bleaching and artificially aging fabric in general, especially denim fabric, as mentioned previously, that requires less time to treat the fabric, entails lower consumption of bleaching agent and allows re-cycling of the granular material.
- Another object of this invention is to provide a method as defined above to produce a bleaching result different from that obtainable through the existing methods, that is to say light areas interspersed evenly on the fabric. This, for the purpose of this description, will be refered to as "weathered look”.
- the fabric after being desized and possibly washed with detergent and softener, is processed using a granular material, such as natural or artificial sand or salt that has been impregnated with a bleaching agent.
- a granular material such as natural or artificial sand or salt that has been impregnated with a bleaching agent.
- the granular material which acts as a means of delivery of the bleach onto the fabric, and which is preferably abrasive and will therefore have a slightly abrasive effect on the fabric, is mixed in advance with an oxydizing or chlorine-based bleaching agent.
- the granular material and bleaching agent can be mixed either separately or in the same container in which the fabric will later be processed.
- the percentage by weight of bleaching agent to be mixed with every kilogram of sand or granular material can vary depending on the extent to which the fabric is to be aged and bleached, the bleaching agent being used, and the size of the grains being used. Generally the quantity of pure bleaching agent, by weight, can vary from 0.1 to 5 % of the weight of the granular material being used, and should preferably stay within about 0.1 and 2 %. When using potassium permanganate as bleaching agent, or other chemical substance, it is best to use 2 to 4 grams of sodium permanganate for each kilogram of granular material.
- the granular material which should be perfectly clean and dry, is mixed for about a minute with the bleaching agent until all the grains are evenly soaked, and is then dampened with water, preferrably warmed to a temperature between 50 C and about 100 C, and mixed for another minute, before it is used.
- the quantity of water to be added should be such as to avoid high concentrations of bleach that could damage the fabric or diluting the bleach excessively, reducing its effectiveness. Excellent results can be obtained by keeping an 8 to 15 % residual humidity level in the sand or granular material.
- the granular material can have any size ranging from 0.3 to 8 mm.
- the granular material may be homogeneous or heterogeneous in size, in quantitites and percentages that vary depending on the size of the grains and their use.
- the composition of the granular material should vary within the ranges shown in the table below. 5 to 15 % of grains between 0.03 and 0.09 mm 20 to 40 % of grains between 1.00 and 2.00 mm 20 to 40 % of grains between 2.00 and 5.00 mm 10 to 30 % of grains between 5.00 and 8.00 mm.
- the sand or other granular material used for each aging process can have the same basic average grain size, with grains whose size varies relatively little, or be made up of small and large grains both, in any combination shown in the table above, so as to achieve diffent "weathered” or bleaching effects.
- the granular material used in the method according to this invention can be of any type and, depending on its characteristics, can be impregnated with a different bleaching agent, whether of the oxydizing or chlorine-based type.
- bleaching agents sodium hydrosulphite decolorant chlorides sodium hypochlorite and lithium hypochlorite chloramine hydrogen peroxyde sodium peroxyde sodium perborate chlorinated cyanuric acid potassium permanganate sodium chlorite solfurous acid 1.3 dichloro - 5.5 dimethyldantoine in chlorine at 60 %. sodium persulfate
- Bleaching agents other than those listed above may possibly be used. For instance, excellent aging and bleaching results can be obtained by using volcanic sand treated or impregnated with potassium permanganate or sodium hypochlorite as bleaching agent, using a bleach solution-to- sand ratio of 2 to 4 grams and 50 to 70 grams, respectively, per kilogram of sand, and in general between 0.1 and 20% of the weight of pure bleaching agent relative to the granular material.
- sand such as: quartz or silicon sand, micaceous, feldspathic, calcareous, chloritic, magnesic, titanic, stannic, ferrous, copper and all other sands used to make abrasive material or glass, including construction mortar sands, stream, lake and sea bed sand, quarry sand and rock powder, clay-free sand used in smelting properly washed and cleaned, or other types of abrasive synthetic resin granular materials that are suitable for the purpose of the method.
- the abrasive material may be partially substituted or complemented by a certain amount of granular absorbent material, impregnated with a bleaching solution at a specific concentration that is compatible with it.
- the fabric after being desized and possibly washed with detergent and spin dried, is placed, either still damp or dry, in a rotating container such as a drum tumbler, with no apertures, or in the basket of a worm screw device, mixed with a pre-established quantity of sand or other granular material impregnated with a bleaching agent.
- the ratio between the weight of the fabric and granular material placed inside the container basically varies between 1:1 and 1:4 depending on the extent to which the fabric is to be bleached and aged. Additionally, according to the claimed method, the fabric and the granular material are rotated for a variable but extremely short amount of time, ranging between 5 and 25 minutes.
- the fabric is separated from the granular material, which is used again in a successive cycle with very small additions of material every two or three cycles.
- the processed fabric is put in the washer for a reducing or antichlorine bath to neutralize the bleaching agent, with a rinse cycle that lasts between 10 and 15 minutes.
- the neutralizing bath should contain 3 to 10 grams of bisulphite or metabisulphite and 0.3 to 1 gram of acetic acid per liter of water. If, on the other hand, the granular material is impregnated with sodium hypochlorite or a similar chemical, it is best to use a neutralizing bath that contains an antichlorine substance, such as 3 to 10 grams of bisulphite and 0.5 to 1.5 grams of hydrogen peroxyde.
- the fabric is rinsed, and possibly washed and softened in the conventional manner.
- Tumbling the fabric with granular material facilitates the action of the bleaching agent over all the fabric and speeds up the aging and bleaching process even in hard to reach places, without damaging the fabric or its fibers.
- This tumbling instead of being carried out in a drum tumbler or completely closed container, can be carried out in a washer's basket, as long as the fabric and granular material are put in a suitable sack.
- Volcanic sand with average grain size of 4 to 5 mm in diameter was used.
- the volcanic sand was impregnated with 2 grams of potassium permanganate per kilogram of sand and 10% of water, at 60 C, and used at a ratio of 2 Kg per kilogram of denim fabric.
- Ten kilograms of impregnated sand and 5 Kg of damp (spun) denim trousers were placed in a drum tumbler which rotated at a fixed velocity of 45 rpm for 10 minutes. After the process the fabric was well worn and evenly bleached, lighter or 'weathered' on the smooth portions, while darker near seams and pockets.
- the volcanic sand consisting of grains varying between 0,03 and 8 mm, was impregnated with 5 grams of sodium hypochlorite at 14 baumè, per kg of sand, and 5% water by weight, at 40 C, and used at a ratio of 2 Kg per kilogram of denim fabric.
- Ten kilograms of impregnated sand and 5 Kg of damp (spun) denim trousers were placed in a drum tumbler which rotated at a fixed velocity of 40 rpm for 15 minuted. After the process, the fabric was well worn and evenly bleached, lighter, with a yellowish tint, and 'weathered' on the smooth portions, while darker near seams and pockets.
- Quartz sand consisting of grains ranging from 3 to 5 mm in diameter was used.
- the sand was impregnated with 4 grams of potassium permanganate per Kg of sand and 12% water by weight, at 60 C, and used at a ratio of 2 Kg of sand per kilogram of denim fabric.
- Ten kilograms of quartz sand and 5 Kg of damp (spun) denim trousers were placed in a drum tumbler wich rotated at a fixed velocity of 35 rpm for 15 minutes. The result, while displaying characteristics similar to that of example I, was even more evident.
- the advantages granted by the method according to this invention consist mainly in an aging and bleaching result not achievable with existing processes, obtained in a shorter amount of time, which in some cases can be as little as a few minutes and rarely exceeds ten minutes, compared to existing processes that can take hours. Since the abrasive granular material used, such as sand or other such material, can be re-cycled, its consumption, and therefore processing costs, are reduced. Furthermore, given lesser absorption of the abrasive granular material according to this invention, compared to pumice used in existing processes, the amount of bleaching agent used is decreased substantially. Lastly, all the operations in the processing of the fabric use abrasive material that does not deteriorate and can be easily removed, thus resulting in diminished wear of the equipment being used.
- FIGS 1 and 2 of the enclosed drawings show, for explicative purposes, a portion of denim fabric that has been simply washed but not yet bleached (figure 1) in which the cloth is still uniformly dark, and the same portion of denim fabric after being aged and bleached (figure 2) through the method of this invention, after only 10 minutes of processing with volcanic sand.
- Figure 2 shows the typical light - dark color interspersed over the fabric, known as "weathered look", according to this invention.
- the invention lastly, concerns the granular material with grain sizes mentioned previously, which is impregnated with suitable amounts of bleaching agent, varying between 0.1 and 20% of the sand's weight in pure bleach, which can be sold and used to boost or to complement granular material that has been partially used-up in previous processing of fabric.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1912587 | 1987-01-21 | ||
IT19125/87A IT1201179B (it) | 1987-01-21 | 1987-01-21 | Procedimento per l'invecchiamento artificiale e lo schiarimento di tessuti jeans mediante trattamento con materiale granulare ed un candeggiante |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0275432A1 true EP0275432A1 (de) | 1988-07-27 |
Family
ID=11154990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87117816A Withdrawn EP0275432A1 (de) | 1987-01-21 | 1987-12-02 | Verfahren, um Jeansbekleidung auszubleichen und ihr ein verschlissenes Aussehen zu geben |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0275432A1 (de) |
IT (1) | IT1201179B (de) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0303120A1 (de) * | 1987-07-31 | 1989-02-15 | Golden Trade S.R.L. | Verfahren und Vorrichtung zum Erzeugen eines verschlissenen Aussehens von Textilwaren |
EP0339674A2 (de) * | 1988-04-29 | 1989-11-02 | Carus Corporation | Verfahren zum Bleichen von Baumwollgeweben und dafür verwendete abreibbare Granulate |
EP0404009A1 (de) * | 1989-06-19 | 1990-12-27 | Nissan Chemical Industries Ltd. | Bleichverfahren für Stoffe |
US4997450A (en) * | 1989-03-10 | 1991-03-05 | Ecolab Inc. | Decolorizing dyed fabric or garments |
EP0417659A1 (de) * | 1989-09-11 | 1991-03-20 | Domenico Baron | Verfahren und Vorrichtung zum Erzeugen eines verschlissenen Aussehens von Textilien |
BE1002813A3 (nl) * | 1989-02-01 | 1991-06-18 | Resthope | Werkwijze voor het plaatselijk bleken van jeans, hierbij gebruikte oplossing en volgens deze werkwijze behandelde jeans en dergelijke. |
US5152804A (en) * | 1988-04-29 | 1992-10-06 | Carus Corporation | Permanganate-containing pellets and method of manufacture |
US5207797A (en) * | 1988-01-08 | 1993-05-04 | Masato Yamate | Method for producing designs and image patterns on denim products |
US5261924A (en) * | 1988-04-29 | 1993-11-16 | Carus Corporation | Layered cementitous composition which time releases permanganate ion |
US5273547A (en) * | 1988-04-29 | 1993-12-28 | Carus Corporation | Sorel cementitious composition which time releases permanganate ion |
US5370708A (en) * | 1989-03-10 | 1994-12-06 | Ecolab Inc. | Decolorizing dyed fabric or garments |
US5480457A (en) * | 1987-11-05 | 1996-01-02 | Ocean Wash, Inc. | Method for bleaching textiles |
US5538515A (en) * | 1994-03-22 | 1996-07-23 | Sentani Trading Ltd. | Method for making a randomly faded fabric |
US5558676A (en) * | 1995-03-15 | 1996-09-24 | Ocean Wash, Inc. | Composition and a method for treating garments with the composition |
US5593458A (en) * | 1995-03-16 | 1997-01-14 | Ocean Wash, Inc. | Process and composition for decorating a dyed cloth fabric |
US5752981A (en) * | 1994-02-03 | 1998-05-19 | Clariant Finance (Bvi) Limited | Finishing of textile fibre materials |
DE10027624A1 (de) * | 2000-06-02 | 2001-12-06 | Zschimmer & Schwarz Mohsdorf G | Verfahren zur Nachreinigung von gefärbten oder bedruckten polyesterhaltigen textilen Produkten und Mischung zur Durchführung des Verfahrens |
ES2188326A1 (es) * | 2000-07-14 | 2003-06-16 | Spanex Internacional S A | Procedimiento y maquina rotativa para el lavado a la piedra de prendas de material textil. |
WO2006030475A1 (en) * | 2004-09-16 | 2006-03-23 | Aitek S.R.L. | Process for manufacturing shoes with decoloured upper made of denim or colour cotton fabric and shoe obtained by said process |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3504510A (en) * | 1967-10-02 | 1970-04-07 | Daniel Freze | Drapery and fur cleaning machine |
FR2116614A5 (en) * | 1970-12-01 | 1972-07-21 | Rebiscoul Gerard | Washing fabric of smooth yarn - with water contng kieselguhr |
FR2259179A1 (de) * | 1974-01-29 | 1975-08-22 | Procter & Gamble | |
DE3129699A1 (de) * | 1981-07-28 | 1983-02-17 | Maruo Clothing Inc., Kurashiki, Okayama | Verfahren zur behandlung von bekleidungsstuecken |
DE3217188A1 (de) * | 1982-05-04 | 1983-11-10 | ACHEMCO Angewandte Chemie GmbH, 1000 Berlin | Verfahren zur behandlung von textilien |
US4575887A (en) * | 1984-08-29 | 1986-03-18 | Viramontes Julio C | Method for abrading fabric garments |
BE905631A (fr) * | 1986-03-28 | 1987-02-16 | Golden Trade Srl | Procede pour decolorer de maniere non uniforme des tissus ou des vetements et produit decolore par ce procede. |
-
1987
- 1987-01-21 IT IT19125/87A patent/IT1201179B/it active
- 1987-12-02 EP EP87117816A patent/EP0275432A1/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3504510A (en) * | 1967-10-02 | 1970-04-07 | Daniel Freze | Drapery and fur cleaning machine |
FR2116614A5 (en) * | 1970-12-01 | 1972-07-21 | Rebiscoul Gerard | Washing fabric of smooth yarn - with water contng kieselguhr |
FR2259179A1 (de) * | 1974-01-29 | 1975-08-22 | Procter & Gamble | |
DE3129699A1 (de) * | 1981-07-28 | 1983-02-17 | Maruo Clothing Inc., Kurashiki, Okayama | Verfahren zur behandlung von bekleidungsstuecken |
DE3217188A1 (de) * | 1982-05-04 | 1983-11-10 | ACHEMCO Angewandte Chemie GmbH, 1000 Berlin | Verfahren zur behandlung von textilien |
US4575887A (en) * | 1984-08-29 | 1986-03-18 | Viramontes Julio C | Method for abrading fabric garments |
BE905631A (fr) * | 1986-03-28 | 1987-02-16 | Golden Trade Srl | Procede pour decolorer de maniere non uniforme des tissus ou des vetements et produit decolore par ce procede. |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0303120A1 (de) * | 1987-07-31 | 1989-02-15 | Golden Trade S.R.L. | Verfahren und Vorrichtung zum Erzeugen eines verschlissenen Aussehens von Textilwaren |
US5480457A (en) * | 1987-11-05 | 1996-01-02 | Ocean Wash, Inc. | Method for bleaching textiles |
US5207797A (en) * | 1988-01-08 | 1993-05-04 | Masato Yamate | Method for producing designs and image patterns on denim products |
EP0339674A2 (de) * | 1988-04-29 | 1989-11-02 | Carus Corporation | Verfahren zum Bleichen von Baumwollgeweben und dafür verwendete abreibbare Granulate |
US5273547A (en) * | 1988-04-29 | 1993-12-28 | Carus Corporation | Sorel cementitious composition which time releases permanganate ion |
US5261924A (en) * | 1988-04-29 | 1993-11-16 | Carus Corporation | Layered cementitous composition which time releases permanganate ion |
EP0339674A3 (de) * | 1988-04-29 | 1991-09-18 | Carus Corporation | Verfahren zum Bleichen von Baumwollgeweben und dafür verwendete abreibbare Granulate |
US5152804A (en) * | 1988-04-29 | 1992-10-06 | Carus Corporation | Permanganate-containing pellets and method of manufacture |
BE1002813A3 (nl) * | 1989-02-01 | 1991-06-18 | Resthope | Werkwijze voor het plaatselijk bleken van jeans, hierbij gebruikte oplossing en volgens deze werkwijze behandelde jeans en dergelijke. |
US4997450A (en) * | 1989-03-10 | 1991-03-05 | Ecolab Inc. | Decolorizing dyed fabric or garments |
US5370708A (en) * | 1989-03-10 | 1994-12-06 | Ecolab Inc. | Decolorizing dyed fabric or garments |
US5366509A (en) * | 1989-06-19 | 1994-11-22 | Nissan Chemical Industries, Ltd. | Method for bleaching cloths |
EP0404009A1 (de) * | 1989-06-19 | 1990-12-27 | Nissan Chemical Industries Ltd. | Bleichverfahren für Stoffe |
EP0417659A1 (de) * | 1989-09-11 | 1991-03-20 | Domenico Baron | Verfahren und Vorrichtung zum Erzeugen eines verschlissenen Aussehens von Textilien |
US5752981A (en) * | 1994-02-03 | 1998-05-19 | Clariant Finance (Bvi) Limited | Finishing of textile fibre materials |
US5538515A (en) * | 1994-03-22 | 1996-07-23 | Sentani Trading Ltd. | Method for making a randomly faded fabric |
US5558676A (en) * | 1995-03-15 | 1996-09-24 | Ocean Wash, Inc. | Composition and a method for treating garments with the composition |
US5593458A (en) * | 1995-03-16 | 1997-01-14 | Ocean Wash, Inc. | Process and composition for decorating a dyed cloth fabric |
DE10027624A1 (de) * | 2000-06-02 | 2001-12-06 | Zschimmer & Schwarz Mohsdorf G | Verfahren zur Nachreinigung von gefärbten oder bedruckten polyesterhaltigen textilen Produkten und Mischung zur Durchführung des Verfahrens |
ES2188326A1 (es) * | 2000-07-14 | 2003-06-16 | Spanex Internacional S A | Procedimiento y maquina rotativa para el lavado a la piedra de prendas de material textil. |
WO2006030475A1 (en) * | 2004-09-16 | 2006-03-23 | Aitek S.R.L. | Process for manufacturing shoes with decoloured upper made of denim or colour cotton fabric and shoe obtained by said process |
Also Published As
Publication number | Publication date |
---|---|
IT8719125A0 (it) | 1987-01-21 |
IT1201179B (it) | 1989-01-27 |
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Inventor name: AMATA, ANTONINO |