WO1998015679A1 - Procedimiento y dispositivo para lavado ultrasonico de textiles en continuo - Google Patents
Procedimiento y dispositivo para lavado ultrasonico de textiles en continuo Download PDFInfo
- Publication number
- WO1998015679A1 WO1998015679A1 PCT/ES1997/000239 ES9700239W WO9815679A1 WO 1998015679 A1 WO1998015679 A1 WO 1998015679A1 ES 9700239 W ES9700239 W ES 9700239W WO 9815679 A1 WO9815679 A1 WO 9815679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- ultrasonic
- treated
- materials
- contact
- Prior art date
Links
Classifications
-
- 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
- D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
- B08B3/123—Cleaning travelling work, e.g. webs, articles on a conveyor
Definitions
- the present invention deals with an ultrasonic method and system for the continuous cleaning of solid materials having a large surface, in the form of sheets or sheets, especially flexible materials such as fabrics, plastics, etc.
- Ultrasonic energy has been used commercially in the industrial cleaning of pieces of rigid materials, especially those with complex geometries.
- the cleaning action of high intensity ultrasound can be mainly attributed to the effects associated with the phenomenon of acoustic cavitation (formation and implosion of bubbles), such as: erosion, agitation and dispersion of dirt, causing chemical reactions on surfaces to be cleaned, penetration of the cleaning solution into pores and fissures, etc.
- the process and the ultrasonic system referred to in the present invention have characteristics that largely solve the problems posed by previous ultrasonic systems, such as the requirement of large volumes of water, the need for agitation of the parts or the degassed. At the same time this process is especially suitable for continuous treatment thanks to the speed of its action.
- the process referred to in the present invention is based on the use of ultrasonic energy which, as is known, can be a useful tool for improving and accelerating the washing process.
- the difference that characterizes this invention is that ultrasonic vibrations are applied to the materials to be washed by vibrating plates that are put in direct contact with these materials that have to be submerged in a shallow layer of liquid.
- This cleaning process can be complemented with an immediate rinse and, once out of the liquid, the ultrasonic energy can be applied again by contact to eliminate an important part of the liquid content in the washed material, producing a pre-drying effect.
- the invention also relates to a device capable of carrying out the described process. This device, especially suitable for treating large surface materials, ie in the form of a band, tape or sheet.
- radiators activated by piezoelectric or magnetostrictive exciters. These radiators may be in contact with the materials or at a very short distance from them, the contact surface being submerged in the washing liquid.
- This liquid which can be any cleaning solution, usually water based, does not need to be degassed.
- the process object of this patent includes the following steps: a) wetting the material in a cleaning solution, b) removing dirt or contaminating substances from the material by applying high intensity ultrasonic vibrations by vibrating plates in contact or very close ( less than 10 mm) to the material; c) rinse in a layer of water or clean liquid that can also be assisted by ultrasonic vibrations; and d) pre-drying of the material by applying the ultrasonic vibrations by contact with the material outside the liquid.
- the removal of dirt or contaminating substances occurs as a result of the exposure of the material to vibrations (or to the very near acoustic field) of ultrasonic radiators, in the form of a large surface plate.
- the cleaning effect is so fast that it allows the material to be cleaned to pass through the vibrating surface (or its very close acoustic field) continuously, at a certain speed, of the order of some cm / s) so that the material occupies the Intense acoustic field area for a short time.
- the large surface vibrating plates oscillate at the excitation frequency that corresponds to one of its flexural resonant modes.
- the very close acoustic field is almost as effective as the direct vibration of the plate itself, because it is its displacement proportional to its amplitude of vibration.
- the homogeneity in the washing effect is achieved by displacing the material so that each part of it has been exposed during the same total time to areas of intense acoustic field.
- the cleaning solutions to be used may be water based with surfactants containing or not other additives such as enzymes, bleaching elements etc .; They can also be non-aqueous based.
- the liquid medium can have any concentration of dissolved gas.
- the material is rinsed.
- This rinsing step is also carried out in a liquid layer and can also be favored by the application of ultrasound in a manner similar to the process of removal of contaminants.
- the cleaning and rinsing stages can be one or several.
- a pre-drying or draining stage can be applied by applying ultrasonic vibration plates in contact with the material working in air. This produces a process of atomization and pumping outwards of a good part of the liquid contained inside the material, which facilitates the subsequent drying.
- This device consists of:
- the shape of the plate can be square, rectangular, circular or any other.
- the thickness of the plate can be constant, but it can also have stepped or continuous variations to modify the distribution of plate travel amplitudes and in general achieve the natural vibration form and frequencies. desired.
- the radiant element may have a curvature to adapt to the surfaces to be cleaned. An example is figure 5.
- the cleaning solution forms a layer of small thickness in which the surface to be cleaned and the surface of the radiating element are submerged. There are means for the renewal of the liquid.
- the radiating ultrasound plate is excited by a piezoelectric or magnetostrictive type vibrator driven by an electronic power equipment.
- the vibrator consists of a transduction element and a mechanical vibration amplifier that can be staggered, conical, catenoidal or other. This amplifier directly excites the vibrating plate in the center or in another place or places.
- the electronic equipment will generally continuously produce a fixed frequency and amplitude signal but operating cycles may be established in which the frequency varies, to achieve more uniform results, or in which the amplitude is greatly reduced during some cycles to intensify cavitation in the remaining.
- the rinse system may be based on a bath with ultrasonic application by means of a device similar to the contaminant removal system described above.
- the pre-drying or draining system may also be based on vibrating ultrasonic plates that will act in an air environment, the material passing in contact with the vibrating surface, oriented so that the droplets ejected do not re-deposit on the material.
- the transport system of the material and / or movement of the ultrasonic generator will depend on the material to be treated. In the case of fabrics, it may be based on a system of tractor rolls. In the case of loose pieces of textile material, one type of conveyor belt can be used with a system for flat material disposal. In the case of essentially one-dimensional materials such as wires, cables, etc. a group of these can be treated by making them pass grouped two-dimensionally.
- the process object of this patent may require the application of several washing steps with different solutions, or several washing and rinsing cycles.
- Figure 1 illustrates a first way of carrying out the invention object of this patent suitable for continuous and flexible materials, which are moved from left to right in the drawing.
- the device for the removal of dirt and contaminants is formed by a vibrating plate ultrasonic emitter excited by an electronic power generator (8) that produces a signal of the desired frequency.
- the conversion of electrical energy into mechanics takes place in a piezoelectric or magnetostrictive transducer (1).
- the mechanical energy is transmitted by means of a mechanical amplifier (2) to the radiating element (3).
- the radiating element is in the form of a rectangular plate with a stepped profile at its rear and is partially submerged in the liquid medium (4), which is located in a container (5) of low depth, less than half the length of the acoustic wave in the liquid
- the container has a system (6) for the renewal of liquid.
- the material is driven by a transport system (7) so that it passes in contact or a short distance from the radiating element (3). Prior to this stage the material has passed through a pre-wetting zone (11). After the cleaning stage the material is rinsed in a clean water bath (9). The rinse can be helped by applying an ultrasonic system similar to that used for cleaning. Finally, the material is drained into (10) by the application of ultrasound in an air medium.
- Figure 2 is a diagram of another arrangement in which both sides of a flat plate are used.
- the material to be treated (1) passes in contact with the plate, which is completely submerged, in the normal direction to the drawing plane, and can be subjected to one, two or four passes on the same radiating element. Four pieces may also be treated simultaneously independent of the material.
- the surface of the liquid may be free, in contact with the air, but preferably it is limited by a reflector element (2).
- the element (3) allows the renewal of the liquid.
- Figure 3 shows a system that is more suitable for treating thicker material (5) and formed by loose pieces that have been extended and compressed on conveyor belts or similar transport elements (4).
- Figure 4 shows a vibrating plate (6) with a semi-cylindrical cavity to be able to contain a layer of liquid that is formed between the plate and a cylinder that acts as a device for transporting the material to be cleaned (5).
- the liquid can be injected through (1) and escapes through (2). Holes (3) and (4) can also be used in the vibrating plate itself, for the renewal of the liquid.
- Figure 5 is a schematic of another possible arrangement.
- the surface to be cleaned is cylindrical.
- the liquid layer of small thickness is formed in a dynamic regime by the constant supply of liquid that comes out of (1) and escapes through (3).
- the vibrating plate (2) is concave and does not cover the entire area to be treated, with both the plate and the liquid supply system provided with a movement such as that expressed in the arrows to be able to access the entire surface to be cleaned.
- the cylinder can have a rotating movement around its axis.
- Figure 6 exemplifies the use of more than one plate (1) and (2) acting simultaneously on two sides of the material to be treated (3).
- the frequency can be the same or different. Different frequencies can be used to achieve more uniform results.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU43855/97A AU4385597A (en) | 1996-10-04 | 1997-10-01 | Process and device for the continuous ultrasound washing of textile materials |
EP97942039A EP1010796B1 (en) | 1996-10-04 | 1997-10-01 | Process and device for the continuous ultrasound washing of textile materials |
DE69714868T DE69714868T2 (de) | 1996-10-04 | 1997-10-01 | Verfahren und vorrichtung zum kontinuierlichen waschen von textilien unter ultraschalleinfluss |
ES97942039T ES2182118T3 (es) | 1996-10-04 | 1997-10-01 | Procedimiento y dispositivo de lavado por ultrasonido de textiles en continuo. |
CA002267914A CA2267914A1 (en) | 1996-10-04 | 1997-10-01 | Process and device for continuous ultrasonic washing of textiles |
US09/284,004 US6266836B1 (en) | 1996-10-04 | 1997-10-01 | Process and device for continuous ultrasonic washing of textile |
AT97942039T ATE222616T1 (de) | 1996-10-04 | 1997-10-01 | Verfahren und vorrichtung zum kontinuierlichen waschen von textilien unter ultraschalleinfluss |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP9602092 | 1996-10-04 | ||
ES09602092A ES2116930B1 (es) | 1996-10-04 | 1996-10-04 | Procedimiento y dispositivo para lavado ultrasonico de textiles en continuo. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998015679A1 true WO1998015679A1 (es) | 1998-04-16 |
Family
ID=8296231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES1997/000239 WO1998015679A1 (es) | 1996-10-04 | 1997-10-01 | Procedimiento y dispositivo para lavado ultrasonico de textiles en continuo |
Country Status (8)
Country | Link |
---|---|
US (1) | US6266836B1 (es) |
EP (1) | EP1010796B1 (es) |
AT (1) | ATE222616T1 (es) |
AU (1) | AU4385597A (es) |
CA (1) | CA2267914A1 (es) |
DE (1) | DE69714868T2 (es) |
ES (2) | ES2116930B1 (es) |
WO (1) | WO1998015679A1 (es) |
Cited By (2)
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EP1067229A2 (en) * | 1999-07-08 | 2001-01-10 | SPEROTTO RIMAR S.p.A. | Apparatus and method for continuously treating a fabric by means of vibration |
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GB687970A (en) * | 1949-09-19 | 1953-02-25 | Mueller Hans | Apparatus for treating textiles, paper and other fibrous materials |
GB860583A (en) * | 1957-06-07 | 1961-02-08 | Detrex Chem Ind | Method of and apparatus for cleaning or degreasing objects |
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US5333628A (en) * | 1992-02-12 | 1994-08-02 | Kyushu Sumitoku Electronics Co., Ltd. | Continuous ultrasonic cleaning apparatus |
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-
1996
- 1996-10-04 ES ES09602092A patent/ES2116930B1/es not_active Expired - Lifetime
-
1997
- 1997-10-01 ES ES97942039T patent/ES2182118T3/es not_active Expired - Lifetime
- 1997-10-01 US US09/284,004 patent/US6266836B1/en not_active Expired - Fee Related
- 1997-10-01 AT AT97942039T patent/ATE222616T1/de not_active IP Right Cessation
- 1997-10-01 WO PCT/ES1997/000239 patent/WO1998015679A1/es active IP Right Grant
- 1997-10-01 EP EP97942039A patent/EP1010796B1/en not_active Expired - Lifetime
- 1997-10-01 DE DE69714868T patent/DE69714868T2/de not_active Expired - Fee Related
- 1997-10-01 AU AU43855/97A patent/AU4385597A/en not_active Abandoned
- 1997-10-01 CA CA002267914A patent/CA2267914A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB687970A (en) * | 1949-09-19 | 1953-02-25 | Mueller Hans | Apparatus for treating textiles, paper and other fibrous materials |
GB860583A (en) * | 1957-06-07 | 1961-02-08 | Detrex Chem Ind | Method of and apparatus for cleaning or degreasing objects |
GB2058727A (en) * | 1979-07-31 | 1981-04-15 | Export Tool & Welding Co Ltd | Cleaning Apparatus and Method |
US5333628A (en) * | 1992-02-12 | 1994-08-02 | Kyushu Sumitoku Electronics Co., Ltd. | Continuous ultrasonic cleaning apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1067229A2 (en) * | 1999-07-08 | 2001-01-10 | SPEROTTO RIMAR S.p.A. | Apparatus and method for continuously treating a fabric by means of vibration |
EP1067229A3 (en) * | 1999-07-08 | 2001-10-31 | SPEROTTO RIMAR S.p.A. | Apparatus and method for continuously treating a fabric by means of vibration |
CN115074928A (zh) * | 2022-06-08 | 2022-09-20 | 塔里木大学 | 纺织用安全防护纺织材料冲洗装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1010796A1 (en) | 2000-06-21 |
ES2116930B1 (es) | 1999-04-01 |
ES2116930A1 (es) | 1998-07-16 |
EP1010796B1 (en) | 2002-08-21 |
ATE222616T1 (de) | 2002-09-15 |
CA2267914A1 (en) | 1998-04-16 |
US6266836B1 (en) | 2001-07-31 |
DE69714868T2 (de) | 2003-04-10 |
ES2182118T3 (es) | 2003-03-01 |
DE69714868D1 (de) | 2002-09-26 |
AU4385597A (en) | 1998-05-05 |
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