ES2664127A1 - Method for localized clothing marking (Machine-translation by Google Translate, not legally binding) - Google Patents
Method for localized clothing marking (Machine-translation by Google Translate, not legally binding) Download PDFInfo
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- ES2664127A1 ES2664127A1 ES201631338A ES201631338A ES2664127A1 ES 2664127 A1 ES2664127 A1 ES 2664127A1 ES 201631338 A ES201631338 A ES 201631338A ES 201631338 A ES201631338 A ES 201631338A ES 2664127 A1 ES2664127 A1 ES 2664127A1
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000000126 substance Substances 0.000 claims abstract description 41
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 230000004913 activation Effects 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims abstract description 3
- 229920000742 Cotton Polymers 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000005562 fading Methods 0.000 claims 1
- 238000002845 discoloration Methods 0.000 description 12
- 239000000835 fiber Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 201000010001 Silicosis Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- COHYTHOBJLSHDF-BUHFOSPRSA-N indigo dye Chemical compound N\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-BUHFOSPRSA-N 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- D06P5/13—Fugitive dyeing or stripping dyes
- D06P5/132—Fugitive dyeing or stripping 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
- D06P5/153—Locally discharging the dyes with oxidants
-
- 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
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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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/005—Laser beam treatment
-
- 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
- D06P5/001—Special chemical aspects of printing textile materials
-
- 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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/20—Physical treatments affecting dyeing, e.g. ultrasonic or electric
- D06P5/2005—Treatments with alpha, beta, gamma or other rays, e.g. stimulated rays
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
- Coloring (AREA)
Abstract
Description
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DESCRIPCIÓNDESCRIPTION
Método para la marcación localizada de ropa.Method for localized clothing marking.
Objeto de la invención.Object of the invention.
El objeto de la presente invención es un método para la marcación localizada de ropa, basado en la activación de un producto químico aplicado sobre la ropa por medio de la energía aportada por un láser.The object of the present invention is a method for the localized marking of clothing, based on the activation of a chemical applied to the clothing by means of the energy provided by a laser.
Dicho método presenta unas particularidades orientadas a realizar dicha activación de forma localizada, a nivel puntual, con el fin de obtener, en caso de que se requiera, una gran definición de la zona decolorada, sin afectar a las propiedades de resistencia de la ropa o tejido en cuestión.Said method has particularities oriented to carry out said activation in a localized manner, at the punctual level, in order to obtain, if required, a large definition of the discolored area, without affecting the resistance properties of the clothing or tissue in question.
Campo de aplicación de la invención.Field of application of the invention.
Esta invención es aplicable en el sector textil para la marcación localizada de ropa y principalmente, aunque no de forma limitativa, para la marcación de tejidos Denim 100% de algodón, y de tejidos Denim de mezclas de algodón y fibras sintéticas.This invention is applicable in the textile sector for the localized marking of clothing and mainly, but not limited to, the marking of 100% cotton Denim fabrics, and Denim fabrics of blends of cotton and synthetic fibers.
Estado de la técnica.State of the art
Actualmente son conocidos en el sector textil diferentes métodos para la marcación localizada de ropas y tejidos y particularmente de tejidos Denim 100% algodón. Estos métodos pueden englobarse de forma genérica en métodos mecánicos, químicos y físicos.Different methods for the localized marking of clothes and fabrics and particularly 100% cotton Denim fabrics are currently known in the textile sector. These methods can be encompassed generically in mechanical, chemical and physical methods.
Un método mecánico para la decoloración localizada de tejidos consiste en lijar dichos tejidos manualmente, con una hoja de papel, o bien con una herramienta de abrasión mecánica. Esta técnica presenta varios inconvenientes ya que el resultado final depende de la destreza del operario. Otros factores negativos unidos a esta técnica, son por ejemplo, la baja capacidad de reproducibilidad industrial de diseños. Pero el principal problema de esta técnica es el importante factor de riesgoA mechanical method for localized discoloration of tissues is to sand these tissues manually, with a sheet of paper, or with a mechanical abrasion tool. This technique has several drawbacks since the final result depends on the skill of the operator. Other negative factors linked to this technique are, for example, the low capacity of industrial reproducibility of designs. But the main problem of this technique is the important risk factor
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que supone para el trabajador estar sometido a un movimiento repetitivo tan agresivo durante repetidas jornadas laborales. Además, el grado de decoloración que se obtiene con esta técnica no es suficiente en la mayoría de los casos, lo que obliga a combinarla con otras técnicas como la aplicación por medio de espray de permanganato potásico (técnica descrita más abajo).which means for the worker to be subjected to such an aggressive repetitive movement during repeated working hours. In addition, the degree of discoloration obtained with this technique is not sufficient in most cases, which forces it to be combined with other techniques such as application by means of potassium permanganate spray (technique described below).
Otra técnica mecánica de decoloración del tejido consiste en a proyectar un chorro de arena a alta presión sobre la zona del tejido a decolorar. Como en el caso del lijado manual, esta técnica presenta también muchos inconvenientes.Another mechanical technique of discoloration of the tissue consists in projecting a high pressure sandblasting over the area of the tissue to be discolored. As in the case of manual sanding, this technique also has many drawbacks.
Es importante señalar que la práctica industrial de esta técnica ha sido prohibida por diferentes marcas ya que la sílice, principal componente de la arena, genera un polvo que penetra fácilmente en los pulmones de los trabajadores produciendo una enfermedad respiratoria letal llamada silicosis.It is important to note that the industrial practice of this technique has been banned by different brands since silica, the main component of sand, generates a powder that easily penetrates the lungs of workers producing a lethal respiratory disease called silicosis.
El uso del láser para crear un efecto de decoloración localizada en un tejido es actualmente el método más extendido, principalmente aplicado en tejido Denim. Consiste en aplicar calor directamente sobre el tejido mediante un rayo láser, tal y como se divulga en las patentes US 5.990.444 y US 6.819.972 En este método se consigue la decoloración por la combinación del chamuscado superficial de las fibras coloreadas y la sublimación del colorante por efecto del calor aportado por el rayo láser.The use of the laser to create a localized discoloration effect in a tissue is currently the most widespread method, mainly applied in Denim tissue. It consists of applying heat directly to the tissue by means of a laser beam, as disclosed in US Patents 5,990,444 and US 6,819,972. This method achieves discoloration by the combination of surface scorching of colored fibers and sublimation. of the dye due to the heat provided by the laser beam.
Este método permite obtener una buena definición y/o una buena degradación de la zona decolorada, por lo que este primer método es el preferido y ampliamente utilizado para la decoloración local. Sin embargo, tiene unas limitaciones importantes de uso. Por un lado, en la mayoría de tejidos esta técnica no consigue el color blanco, por lo que se hace necesario añadir un procesado químico. Por otro lado, la introducción de otras fibras en combinación con el algodón para aportar diferentes características a los tejidos Denim, y en concreto la introducción de pequeñas cantidades de fibras de poliéster, limitan el uso de láser como alternativa viable, ya que el calor del láser en un punto concreto funde la fibra de poliéster, resultando en la drástica disminución de la resistencia del tejido y en la consiguiente rotura del mismo. La reducción del tiempo de exposición del tejido al láser aminoraThis method allows to obtain a good definition and / or a good degradation of the discolored zone, so this first method is preferred and widely used for local discoloration. However, it has important limitations of use. On the one hand, in most fabrics this technique does not get the white color, so it is necessary to add a chemical process. On the other hand, the introduction of other fibers in combination with cotton to provide different characteristics to Denim fabrics, and in particular the introduction of small amounts of polyester fibers, limits the use of laser as a viable alternative, since the heat of the Laser at a specific point melts the polyester fiber, resulting in a drastic decrease in the resistance of the fabric and the consequent breakage of the same. The reduction of tissue exposure time to the laser decreases
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la pérdida de resistencia del tejido, pero también reduce la energía aportada para el quemado superficial y la sublimación del colorante, por lo que no se consigue una decoloración visible. Esta limitación del uso de láser como agente para la decoloración de tejidos Denim afecta también a tejidos ligeros de algodón 100% por la pérdida de resistencia.the loss of resistance of the tissue, but also reduces the energy provided for the superficial burning and sublimation of the dye, so that no visible discoloration is achieved. This limitation of the use of laser as an agent for discoloration of Denim fabrics also affects light 100% cotton fabrics due to the loss of resistance.
Una técnica de decoloración química se basa en la aplicación localizada de permanganato potásico, el cual produce la destrucción del color de la ropa solo en la zona donde se ha aplicado. Cuando se pretende decolorar una área definida de forma gradual, la aplicación del permanganato potásico se realiza mediante pulverizado. Si por el contrario lo que se desea es tener un dibujo, entonces se utilizará para esta aplicación métodos de serigrafía convencional.A chemical bleaching technique is based on the localized application of potassium permanganate, which results in the destruction of clothing color only in the area where it has been applied. When it is intended to discolor a defined area gradually, the application of potassium permanganate is done by spraying. If on the contrary what is desired is to have a drawing, then conventional screen printing methods will be used for this application.
Un segundo método de decoloración química se basa en la utilización de compuestos químicos a base de sales orgánicas e inorgánicas con propiedades oxidantes capaces de destruir el color por oxidación química del colorante con el que se tiñen las fibras (colorante índigo en el caso de los tejidos Denim).A second method of chemical discoloration is based on the use of chemical compounds based on organic and inorganic salts with oxidizing properties capable of destroying the color by chemical oxidation of the dye with which the fibers are dyed (indigo dye in the case of fabrics Denim)
La aplicación de estos oxidantes debe realizarse: o bien sobre toda la superficie de la del tejido, de forma automática, con métodos convencionales de aplicación como agotamiento, fulardado, estampación, etc., en caso de tejido, y sistemas por agotamiento o inmersión en el caso de prendas, o bien localmente de forma manual aplicando el químico con una esponja o una pistola de espray en la zona concreta que se desea decolorar; realizando posteriormente la introducción de la prenda en una cámara de calor, secadora o en un horno de curado, exponiéndola a una temperatura adecuada y durante un tiempo de determinado para activar la reacción y que los productos oxidantes reaccionen con la fibra para producir la oxidación y por tanto la eliminación del color. La activación del químico requiere de una temperatura y tiempo de exposición específicos. Un ligero exceso en la temperatura o el tiempo de exposición afectará negativamente a la resistencia del tejido lo que hace crítica esta operación.The application of these oxidants must be done: either over the entire surface of the fabric, automatically, with conventional methods of application such as exhaustion, scarfing, printing, etc., in case of tissue, and systems for exhaustion or immersion in the case of garments, or locally manually by applying the chemical with a sponge or spray gun in the specific area to be discolored; subsequently introducing the garment in a heat chamber, dryer or curing oven, exposing it at a suitable temperature and for a certain time to activate the reaction and that the oxidizing products react with the fiber to produce oxidation and therefore the elimination of color. The activation of the chemical requires a specific temperature and exposure time. A slight excess in temperature or exposure time will adversely affect tissue resistance which makes this operation critical.
Una tercera técnica, que se basa en la utilización de productos químicos que se fijan a la ropa al aplicarles calor. En este caso no se trata de una decoloración sinoA third technique, which is based on the use of chemicals that are attached to clothing when heat is applied. In this case it is not a discoloration but
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de una simulación de la misma añadiendo localmente el color que resultaría de dicha decoloración.of a simulation of it by adding locally the color that would result from such discoloration.
Para estas dos últimas técnicas, que se presentan como alternativas viables desde el punto de vista medioambiental y de seguridad para el trabajador, los problemas son concretamente:For these last two techniques, which are presented as viable alternatives from the environmental and safety point of view for the worker, the problems are specifically:
- la aplicación del producto químico sobre la prenda no permite una buena precisión y definición de las zonas o imágenes a decolorar;- the application of the chemical on the garment does not allow a good precision and definition of the areas or images to be discolored;
- la limitación en los patrones (dibujos / diseños) a reproducir y;- the limitation in the patterns (drawings / designs) to be reproduced and;
- el riesgo de destruir el tejido por la aplicación de un exceso de temperatura durante la realización, ya que la reacción química, en combinación con la temperatura y el tiempo, afecta drásticamente a la resistencia de los tejidos de algodón.- the risk of destroying the fabric by the application of an excess of temperature during the realization, since the chemical reaction, in combination with the temperature and the time, drastically affects the resistance of the cotton fabrics.
Descripción de la invenciónDescription of the invention
Como solución a las dificultades expuestas se ha desarrollado un método basado en la activación de los productos químicos mencionados mediante aporte calórico de un rayo láser. El láser sustituirá a los sistemas convencionales como fuente de energía principal, consiguiendo de esta forma mayor precisión que la conseguida con un horno de curado, una secadora o una cámara de calor convencionales.As a solution to the exposed difficulties, a method based on the activation of the mentioned chemicals has been developed by caloric contribution of a laser beam. The laser will replace conventional systems as the main energy source, thus achieving greater precision than that achieved with a curing oven, a dryer or a conventional heat chamber.
La acción del láser en esta aplicación es la de aportar la energía necesaria para la activación del producto químico, de forma que es el producto químico el que marca la ropa, y no el láser como en otras aplicaciones.The action of the laser in this application is to provide the energy necessary for the activation of the chemical, so that it is the chemical that marks the clothes, and not the laser as in other applications.
La solución desarrollada permite:The developed solution allows:
- activar de forma controlada, y en la zona deseada, el producto químico aplicado sobre el tejido, obteniendo una elevada precisión y definición de las zonas a decolorar;- Activate in a controlled manner, and in the desired area, the chemical applied to the tissue, obtaining high precision and definition of the areas to be discolored;
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- aplicar diferente intensidad calórica en cada punto o pixel, lo que permite la consecución de degradados imposibles de conseguir con las técnicas químicas o manuales;- apply different caloric intensity at each point or pixel, which allows the achievement of gradients impossible to achieve with chemical or manual techniques;
- eliminar el riesgo de roturas y disminución de la resistentica del tejido, mediante el control de la energía de activación del producto químico. El método de la invención asegura un aporte energético constante y controlable mediante el tiempo de exposición del rayo láser hacia el producto químico,- eliminate the risk of breakage and decrease the resistance of the tissue, by controlling the activation energy of the chemical. The method of the invention ensures a constant and controllable energy contribution by the exposure time of the laser beam to the chemical,
- realizar marcaciones localizadas en cualquier género de ropa, sea cuero, mezclas de tejido o tejidos ligeros como el algodón 100%.- make markings located on any kind of clothing, be it leather, fabric blends or light fabrics such as 100% cotton.
- contaminar menos y desperdiciar menos agua que en los métodos que utilizan productos químicos más agresivos.- Contaminate less and waste less water than in methods that use more aggressive chemicals.
- aumentar la velocidad de procesado respecto a los métodos tradicionales de marcación por láser.- increase the processing speed compared to traditional laser marking methods.
Para conseguir estos objetivos, el método de la invención, comprende:To achieve these objectives, the method of the invention comprises:
a) la aplicación en la ropa a marcar de un producto químico que al ser activado con calor, en una zona de la ropa a marcar, produce un cambio de color en dicha zona de la ropa;a) the application on the clothing to be marked of a chemical that when activated with heat, in an area of the clothing to be marked, causes a color change in said area of the clothing;
b) la activación del producto en la zona de la ropa a marcar mediante la aplicación puntual de calor mediante láser.b) the activation of the product in the area of the clothing to be marked by the timely application of heat by laser.
Como es de suponer, la aplicación del producto químico en la ropa se puede realizar tanto en una zona localizada como de forma global, y mediante métodos convencionales, como son la inmersión, el fulardado, el agotamiento, la estampación, la micronización o el pulverizado.As expected, the application of the chemical in the clothing can be done both in a localized area and globally, and by conventional methods, such as immersion, scarfing, depletion, stamping, micronization or spraying .
En esta invención el láser se utiliza como agente para aportar de forma parcial o total la energía/temperatura que activa selectivamente el producto químico previamente aplicado sobre la ropa. En este caso se requiere de un aporte energético mucho menor que en el método de marcación convencional, por lo que se permite el marcaje a todo tipo de sustrato, incluyendo tejidos frágiles o muy ligeros como el algodón 100% o el poliéster, ya que al reducir la cantidad deIn this invention, the laser is used as an agent to partially or totally provide the energy / temperature that selectively activates the chemical previously applied to the clothing. In this case, a much smaller energy contribution is required than in the conventional marking method, so that all types of substrate are allowed to be labeled, including fragile or very light fabrics such as 100% cotton or polyester, since reduce the amount of
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energía, el tejido no la absorbe y por tanto no hay efecto de quemado o fundido de las fibras. De esta forma, la resistencia del mismo no se ve afectada.energy, the tissue does not absorb it and therefore there is no burning or melting effect of the fibers. In this way, its resistance is not affected.
El rango de energía para activar este tipo de producto químico se encuentra entre 10 y 40 mJ, aunque al ser utilizados en ropa de algodón o poliéster el rango de energía adecuado a aplicar se encuentra entre 15 y 30 mJ. Estas cantidades de energía son suficiente para activar el producto, pero no para ser absorbidas por el tejido y provocar por sí mismas una marcación visible en el tejido. Tampoco produciría en el tejido una reducción de la resistencia ni la fusión de las fibras que lo componen.The energy range to activate this type of chemical is between 10 and 40 mJ, although when used in cotton or polyester clothing the appropriate energy range to be applied is between 15 and 30 mJ. These amounts of energy are sufficient to activate the product, but not to be absorbed by the tissue and by themselves cause a visible marking on the tissue. Nor would it produce in the tissue a reduction in resistance or fusion of the fibers that compose it.
Una parte de la mencionada energía puede ser aportada mediante otra fuente de calor convencional, como por ejemplo una estufa de infrarrojos o un horno de curado, y que la activación selectiva del producto químico se realice mediante el láser, de forma que éste pueda ser de una potencia menor a los valores mencionados.A part of said energy can be provided by another conventional heat source, such as an infrared heater or a curing oven, and the selective activation of the chemical is carried out by means of the laser, so that it can be a power lower than the mentioned values.
La marcación se conseguirá donde el producto químico haya sido aplicado sobre la ropa y activado punto a punto (pixel a pixel) por la energía del láser. Dado que la temperatura necesaria para la activación del producto químico es aportada de forma precisa por el láser, será posible obtener imágenes tan definidas y perfectas como se necesite.The marking will be achieved where the chemical has been applied to the clothing and activated point to point (pixel to pixel) by the laser energy. Since the temperature necessary for the activation of the chemical is precisely provided by the laser, it will be possible to obtain images as defined and perfect as needed.
En aquellas zonas de la ropa en las que el producto químico no se haya activado con el láser, dicho el producto químico podrá eliminarse fácilmente sin que se produzca marcación alguna en estas zonas.In those areas of the clothes where the chemical has not been activated with the laser, said chemical can be easily removed without any marking in these areas.
Dicha eliminación del producto químico no activado se puede realizar mediante cualquier método convencional de lavado, como lo es la aplicación de agua, aire, cepillado y/o mediante un sistema mecánico, químico o húmedo.Said removal of the non-activated chemical can be carried out by any conventional washing method, such as the application of water, air, brushing and / or by a mechanical, chemical or wet system.
Como es habitual en la marcación de tejidos por láser, la activación del producto químico se puede realizar siguiendo trayectorias que permiten generar en la ropaAs usual in laser tissue marking, the activation of the chemical can be carried out following paths that allow the generation of clothing
efectos visuales de hilado, de tejidos virtuales, de lavado a la piedra o de decoloración.visual effects of spinning, virtual fabrics, stone washing or discoloration.
La presente invención soluciona una barrera técnica que permite el aumento de 5 productividad, la reproducibilidad de efectos a escala industrial y la homogeneidad necesaria en la producción de prendas. Además aumenta la calidad del producto final aumentando la vida útil de las prendas, ya que la resistencia de la ropa no se verá afectada.The present invention solves a technical barrier that allows the increase of productivity, the reproducibility of effects on an industrial scale and the necessary homogeneity in the production of garments. In addition, the quality of the final product increases, increasing the useful life of the garments, since the resistance of the clothes will not be affected.
Claims (12)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| ES201631338A ES2664127B2 (en) | 2016-10-17 | 2016-10-17 | Method for localized clothing marking |
| PCT/ES2017/070650 WO2018073468A1 (en) | 2016-10-17 | 2017-10-04 | Method for the localised marking of clothing |
| CN201780063879.6A CN109844217B (en) | 2016-10-17 | 2017-10-04 | Method for locally marking a garment |
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| ES201631338A ES2664127B2 (en) | 2016-10-17 | 2016-10-17 | Method for localized clothing marking |
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| ES2664127A1 true ES2664127A1 (en) | 2018-04-18 |
| ES2664127B2 ES2664127B2 (en) | 2018-11-16 |
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| WO2020023718A1 (en) * | 2018-07-25 | 2020-01-30 | Vf Jeanswear, L.P. | Chemical based modification of fabric color |
| CN114086351A (en) * | 2021-11-11 | 2022-02-25 | 安徽原野滤材有限公司 | Calendering equipment is used in production of industry filter cloth |
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| US10442233B2 (en) * | 2013-09-19 | 2019-10-15 | Revolaze, LLC | System and method of generating a pattern used to process a surface of a fabric through laser irradiation, and fabric created thereby |
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2016
- 2016-10-17 ES ES201631338A patent/ES2664127B2/en not_active Expired - Fee Related
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- 2017-10-04 CN CN201780063879.6A patent/CN109844217B/en active Active
- 2017-10-04 WO PCT/ES2017/070650 patent/WO2018073468A1/en active Application Filing
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| US5268002A (en) * | 1989-03-10 | 1993-12-07 | Ecolab Inc. | Decolorizing dyed fabric or garments |
| WO1994006962A1 (en) * | 1992-09-23 | 1994-03-31 | Burlington Industries, Inc. | Fabric finishing procedure |
| US5567207A (en) * | 1994-07-31 | 1996-10-22 | Icon, Inc. | Method for marking and fading textiles with lasers |
| US5593458A (en) * | 1995-03-16 | 1997-01-14 | Ocean Wash, Inc. | Process and composition for decorating a dyed cloth fabric |
| ES2356336T3 (en) * | 1995-10-30 | 2011-04-07 | Technolines, Inc. | LASER METHOD OF GRAPHICS. |
| US6819972B1 (en) * | 1999-10-05 | 2004-11-16 | Clarence H Martin | Material surface processing with a laser that has a scan modulated effective power to achieve multiple worn looks |
| WO2002064874A2 (en) * | 2001-02-12 | 2002-08-22 | Icon Laser Technologies, Inc. | Method and apparatus for fading a dyed textile material |
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| ES2664127B2 (en) | 2018-11-16 |
| WO2018073468A1 (en) | 2018-04-26 |
| CN109844217A (en) | 2019-06-04 |
| CN109844217B (en) | 2020-08-28 |
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