Washing control method of clothing processing equipment and clothing processing equipment

Abstract

The present invention provides a washing control method for a clothing treatment device and a clothing treatment device, belonging to the technical field of clothing treatment devices. The method comprises: determining a detergent dosing plan based on stain information of the clothing, wherein the stain information includes the stain type and the duration of the stain; the detergent dosing plan includes the dosing combination of a pre-treatment agent and an enzyme preparation, and the proportion of the pre-treatment agent and enzyme preparation in the total detergent dosing. The present invention proposes a clothing treatment device that can determine the detergent dosing plan based on stain identification, which not only achieves good stain removal results but also avoids detergent waste, rinsing difficulties, and damage to clothing.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing equipment, and in particular to a washing control method for clothing processing equipment and the clothing processing equipment. Background Art

[0002] Existing laundry treatment methods typically remove stubborn stains by increasing the amount of detergent, the frequency of tumbling, or the temperature. These methods have limited effectiveness in removing stubborn stains and can cause increased damage to clothing. Furthermore, the longer a stain remains on clothing, the more difficult it becomes to remove. Summary of the Invention

[0003] In order to overcome the problem in the related art that the longer special stains are on clothes, the more difficult it is to wash them, the embodiment of the present invention proposes a clothing processing device that can determine the detergent dosage plan through stain identification. It can not only achieve good stain removal effect, but also avoid detergent waste, rinsing difficulties and damage to clothes.

[0004] A first aspect of an embodiment of the present invention provides a washing control method for a clothing treatment device, wherein the detergent used in the clothing treatment device includes a pre-treatment agent and an enzyme preparation, and the washing control method includes:

[0005] Determine the detergent dosage plan based on the stain information of the clothes;

[0006] The stain information includes the type of stain and the duration of the stain, and the detergent addition plan includes the combination of pre-treatment agent and enzyme preparation and the proportion of pre-treatment agent and enzyme preparation in the total detergent addition.

[0007] In the above technical solution, the detergent dosing scheme is determined according to the stain information of the clothes, including:

[0008] Collect images of the clothes to be washed, identify the color of the stains on the surface of the clothes based on the clothes image, compare the pre-stored stain color information with the identified stain color information, and determine the stain type and stain contamination duration based on the comparison result.

[0009] In the above technical solution, the method of comparing the pre-stored stain color information with the identified stain color information includes:

[0010] The HSV values ​​of the stain colors are compared, and the type of stain and the duration of the stain are determined based on the HSV value comparison results.

[0011] In the above technical solution, the dosage combination of pretreatment agent and enzyme preparation is determined based on the identified stain type, and the dosage ratio of pretreatment agent and enzyme preparation to total detergent under the dosage combination is determined based on the identified stain contamination duration.

[0012] In the above technical solution, the method further includes:

[0013] Obtain the weight of the clothes and determine the total amount of detergent to be added based on the weight of the clothes;

[0014] The amount of pretreatment agent and enzyme preparation added is determined based on the total amount of detergent added and the proportion of pretreatment agent and enzyme preparation in the total detergent added.

[0015] In the above technical solution, the washing method further comprises:

[0016] According to the determined amounts of pretreatment agent and enzyme preparation, the pretreatment agent is added, and after running at a first speed for a first preset time, the enzyme preparation is added.

[0017] In the above technical solution, the method further includes:

[0018] The pre-treatment agent is controlled to be added in a mist or foam form, and after the enzyme preparation is added, the clothing treatment equipment is controlled to wash the clothing in a first preset temperature range.

[0019] In the above technical solution, the method further includes:

[0020] Obtaining the color information of the clothes before washing and the color of the clothes after washing, and determining the color difference value of the clothes after washing relative to the color before washing;

[0021] Adjust the proportion of pretreatment agent and enzyme preparation in the total detergent in the current solution according to the color difference value.

[0022] In the above technical solution, the proportion of pretreatment agent and enzyme preparation in the total detergent in the current dosage scheme is adjusted according to the color difference value, including:

[0023] If the color difference between the clothes after washing and before washing is greater than the first preset difference, the proportion of pretreatment agent in the total detergent in the current addition scheme is increased, and the proportion of enzyme preparation in the total detergent in the current addition scheme is reduced.

[0024] A second aspect of an embodiment of the present invention provides a clothes processing device that adopts the above-mentioned washing control method.

[0025] In the above technical solution, the clothes processing device includes:

[0026] A shooting device, used to obtain images of clothing;

[0027] An image processing module is used to process the acquired clothing images to obtain the dosage combinations of different types of detergents and the proportions of different types of detergents in the total amount of detergents dispensed;

[0028] A detergent dispensing box having multiple detergent storage chambers for storing different types of detergents;

[0029] The plurality of detergent storage chambers include a pre-treatment agent storage chamber and an enzyme preparation storage chamber, wherein the pre-treatment agent storage chamber is used to store the pre-treatment agent and the enzyme preparation storage chamber is used to store the enzyme preparation;

[0030] The pre-treatment agent storage chamber is connected to the bubbling pipeline through a liquid feeding pump. A bubbler is provided on the bubbling pipeline for feeding the pre-treatment agent onto the surface of the clothes in the form of foam or mist.

[0031] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0032] The embodiment of the present invention provides a clothing treatment device that can determine a detergent dosing plan through stain recognition, which can not only achieve a good stain removal effect, but also avoid detergent waste, rinsing difficulties, and damage to clothes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0034] Figure 1 The control flow of the embodiment of the laundry control method for a laundry processing device of the present invention is as follows: Figure 1 ;

[0035] Figure 2 The control flow of the embodiment of the laundry control method for a laundry processing device of the present invention is as follows: Figure 2 ;

[0036] Figure 3 A schematic diagram of the three-dimensional structure of an embodiment of a clothes processing device of the present invention;

[0037] Figure 4 is a schematic top view of the structure of an embodiment of a clothes processing device of the present invention;

[0038] Figure 5 Schematic diagram of the cross-section structure of an embodiment of a clothes processing device of the present invention.

[0039] Among them: 1- clothing treatment equipment shell; 2- door body; 3- inner drum; 4- drainage pump; 5- detergent dispensing box; 501- detergent dispensing box body; 502- pre-treatment agent installation cavity; 503- pre-treatment agent storage box; 504- enzyme preparation installation cavity; 505- enzyme preparation storage box; 6- liquid dosing pump; 7- water inlet valve; 8- bubbler; 9- mixing chamber; 10- bubbler pipeline; 11- liquid dosing pipe; 12- main water inlet pipe; 13- bubble outlet; 14- shooting device. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention as detailed in the appended claims.

[0041] When washing clothes with existing clothing treatment equipment, the longer a specific stain remains on the clothing, the more difficult it becomes to clean. Conventional washing methods, which rely on mechanical force, heating, and increased detergent dosage, are ineffective in removing stubborn specific stains and increase wear and tear. Common stubborn specific stains, such as protein-based blood stains, oil stains, and pigments like orange and grape stains, are poorly removed by conventional washing methods. Even with increased mechanical force, heating, and detergent dosage, these cannot be completely removed and increase wear and tear on the clothing. The present invention proposes a clothing treatment device that can determine a detergent dosing plan based on stain identification. This device not only achieves excellent stain removal results but also avoids detergent waste, rinsing difficulties, and damage to clothing.

[0042] The following is combined with Figure 1 -Attached Figure 5 The technical solution of this embodiment is described in detail. The following implementation methods and embodiments can be combined with each other unless there is any conflict.

[0043] Example

[0044] like Figure 1-Figure 5 As shown, this embodiment proposes a washing control method for a clothes processing device, wherein the detergent used by the clothes processing device includes a pre-treatment agent and an enzyme preparation, and the washing control method includes:

[0045] Determine the detergent dosage plan based on the stain information of the clothes;

[0046] The stain information includes the stain type and the stain contamination duration, and the detergent addition scheme includes the addition combination of the pre-treatment agent and the enzyme preparation and the proportion of the pre-treatment agent and the enzyme preparation in the total detergent addition.

[0047] In an embodiment of the present invention, by obtaining the type of stains on the surface of clothes and the duration of the stains when washing clothes, it is possible to recommend a combination of different types of detergents according to the type of stains and the duration of the stains on the clothes, as well as the proportion of different types of detergents in the total detergent input under the input combination. This can achieve targeted stain removal while avoiding problems such as detergent waste, rinsing difficulties, and damage to clothes caused by excessive detergent input.

[0048] It should be noted that the detergent dosing scheme in the embodiments of the present invention employs a combination of treatment agents and enzyme preparations because the controlled placement provided by the embodiments of the present invention is primarily targeted at stubborn stains on clothing. Common stubborn stains, such as protein-based serums, oil stains, and pigments like orange and grape stains, are not effectively removed using conventional washing methods. Even increasing the washing power and the amount of detergent used cannot completely remove them, and can even increase wear and tear on clothing. Therefore, it is necessary to adopt a specific detergent formula based on the specific stubborn stains identified, thereby achieving targeted cleaning of these stubborn stains and improving the cleaning effect on these stubborn stains.

[0049] Specifically, determining a detergent dosing plan based on the stain information of the clothes includes:

[0050] Collect images of the clothes to be washed, identify the color of the stains on the surface of the clothes based on the clothes image, compare the pre-stored stain color information with the identified stain color information, and determine the stain type and stain contamination duration based on the comparison result.

[0051] More specifically, the method of comparing the pre-stored stain color information with the identified stain color information includes:

[0052] The HSV values ​​of the stain colors are compared, and the type of stain and the duration of the stain are determined based on the HSV value comparison results.

[0053] Before washing, the user brings the garment to the camera 14 and aligns the stained area with the camera 14. The camera 14 then takes a photo of the stained area, which is then transmitted to the recognition and processing module. The recognition and processing module processes the transmitted photo by first converting the image into a color space suitable for processing, such as the RGB (red, green, and blue) color space or the HSV (hue, saturation, and value) color space. Color feature extraction and calculation are then performed (color recognition is a conventional technique and will not be further described in this embodiment). This color information is then matched with the color information of stubborn stains pre-classified and stored in a library to determine the type of stain.

[0054] The identified HSV values ​​can be optionally compared. Identical or similar HSV values ​​indicate the corresponding stain type. Color matching can also be used to determine the duration of the stain on clothing. For example, a blood stain is bright red, corresponding to HSV values ​​of 350°, 73%, and 44%, or a dark red, corresponding to HSV values ​​of 13°, 9%, and 29%; grape juice is purple, corresponding to HSV values ​​of 270°, 100%, and 20%; and an oil stain is brown, corresponding to HSV values ​​of 30°, 70%, and 26%. Stubborn stains stored in the database can be categorized into protein stains, oil stains, and pigment stains. Each stain category encompasses multiple types of stains, such as protein stains including blood and milk stains, oil stains including rapeseed oil and corn oil, and pigment stains including orange, grape, and apple stains. Furthermore, each stain state is assigned a color, such as old blood stains appear dark red or black, grape stains appear purple, and oil stains are typically brown. In addition, the stain type can also be selected by the user according to the actual stain situation. The stain type identification method is preferably color recognition, but there is no special limitation as long as the stain type can be identified.

[0055] In any of the above embodiments, the method for determining a detergent dosing plan based on stain information includes:

[0056] The dosage combination of the pre-treatment agent and the enzyme preparation is determined based on the identified stain type, and the dosage ratio of the pre-treatment agent and the enzyme preparation to the total detergent under the dosage combination is determined based on the identified stain contamination duration.

[0057] After determining the stain type, the clothing treatment system automatically recommends a detergent combination (process S02). Specifically, it combines pre-treatment agents and enzyme preparations. If the stain is protein-based, a protein-based pre-treatment agent is combined with protease. If the stain is oil-based, a heavy oil-based pre-treatment agent is combined with lipase. If the stain is pigment-based, a pigment-based pre-treatment agent is combined with cellulase. This combination of specialized pre-treatment agents and enzymes provides a dual stain removal solution, effectively removing stubborn stains. After the system recommends a detergent combination, the user adds the appropriate detergent according to the recommended combination (process S03).

[0058] The identification and processing module then matches the approximate time the stain was on the clothing based on the identified stain color (process S04) and determines the dosage of pre-treatment agent and enzyme preparation based on this time range (process S05). For example, the color of a blood stain changes over time as follows: initially bright red, then dark red after 30-60 minutes, and then black after 2-3 days. Therefore, when the blood stain is identified as bright red, the amount of protein pre-treatment agent Md1 and the amount of protease Nd1 are added. When the blood stain is identified as dark red, the amount of protein pre-treatment agent Md2 and the amount of protease Nd2 are added. When the blood stain is identified as black, the amount of protein pre-treatment agent Md3 and the amount of protease Nd3 are added. The relationship between the dosage amounts is: Md1 ≤ Md2 ≤ Md3, Nd1 ≤ Nd2 ≤ Nd3.

[0059] For example, orange stains will oxidize in the air and gradually change from light yellow to orange-yellow. Or, grape stains will oxidize in the air and gradually change from light purple to dark purple or purple-brown. Therefore, when the grapes are identified as light purple, it means that the staining time is relatively recent, and the amount of pigment pretreatment agent added is Ms1, and the amount of cellulase added is Ns1. When the grapes are identified as dark purple or purple-brown, it means that the staining time is relatively long, and the amount of pigment pretreatment agent added is Ms2, and the amount of cellulase added is Ns2. For another example, when rapeseed oil is stained on clothing, it will initially only leave a faint trace, and then gradually spread and turn brown. Therefore, when the rapeseed oil is identified as light brown, it means that the staining time is relatively short, and the amount of heavy oil pretreatment agent added is My1, and the amount of lipase added is Ny1. When the rapeseed oil is identified as brown, it means that the staining time is relatively long, and the amount of heavy oil pretreatment agent added is My2, and the amount of lipase added is Ny2.

[0060] In any of the above embodiments, the method further comprises:

[0061] Obtain the weight of the clothes and determine the total amount of detergent to be added based on the weight of the clothes;

[0062] The amount of the pre-treatment agent and enzyme preparation added is determined according to the total amount of detergent added and the proportion of the pre-treatment agent and enzyme preparation in the total amount of detergent added.

[0063] Specifically, when using enzyme preparations to wash stubborn stains, the amount of enzyme preparation used is very small and is often used in combination with ordinary detergent. Let the amount of ordinary detergent used be Mp. This solution uses the total detergent usage M of 1% of the clothing load as an example. The optional pretreatment agent usage is 1 / 10-1 / 2 of the total detergent usage M. Therefore, the usage amount of the protein pretreatment agent Md1 can be 3 / 10M, Md2 can be 2 / 5M, and Md3 can be 1 / 2M.

[0064] The usage amount of pigment pretreatment agent Ms1 can be selected as 2 / 5M, and Ms2 can be selected as 1 / 2M;

[0065] The usage amount of heavy oil pretreatment agent My1 can be selected as 3 / 10M, and My2 can be selected as 1 / 2M.

[0066] The amount of enzyme preparation used is 1‰-5‰ of the total detergent amount M, so the amount of protease used Nd1 can be selected as 1‰M, Nd2 can be selected as 2‰M, and Nd3 can be selected as 3‰M;

[0067] The usage amount of cellulase Ns1 can be selected as 2‰M, and Ns2 can be selected as 3‰M; the usage amount of lipase Ny1 can be selected as 1‰M, and Ny2 can be selected as 3‰M.

[0068] In any of the above embodiments, after the dosage of the pretreatment agent and the enzyme preparation is determined, the pretreatment agent and the enzyme preparation are added.

[0069] Specifically, according to the determined amount of pretreatment agent and enzyme preparation, the pretreatment agent is added, and after running at a first speed for a first preset time, the enzyme preparation is added, and the pretreatment agent is controlled to be added in the form of mist or foam, and after the enzyme preparation is added, the clothing processing equipment is controlled to wash the clothes at a first preset temperature range.

[0070] Preferably, the dosing pump 6 delivers the pre-treatment agent to the bubbling pipeline, the water inlet valve 7 feeds water, and the pre-treatment agent and water mixture is foamed by the bubbler 8 and sprayed onto the clothes in the inner drum through the bubble outlet 13, so that the pre-treatment agent can be fully dissolved, and the contact area between the pre-treatment agent and the clothes is increased, thereby improving the pre-treatment effect. The bubbler 8 is a prior art and will not be described in detail. After the pre-treatment agent is sprayed onto the clothes, it is pre-treated for T1 time (process S06), and optionally left to stand or the low-speed drum is rotated for T1 time. Time T1 can be selected from 2-20min, preferably 5-10min. After the pre-treatment is completed, the enzyme preparation is added (process S07), and normal washing is carried out after the water inlet is to the set amount. Washing can be carried out at low temperature, and the temperature can be selected below 40°C, preferably 30°C, to reduce clothing damage.

[0071] In any of the above embodiments, the method further comprises:

[0072] Obtaining the color information of the clothes before washing and the color of the clothes after washing, and determining the color difference value of the clothes after washing relative to the color before washing;

[0073] Adjust the proportion of pretreatment agent and enzyme preparation in the total detergent in the current solution according to the color difference value.

[0074] Specifically, the proportion of pretreatment agent and enzyme preparation in the total detergent dosage in the current dosage plan is adjusted according to the color difference value, including:

[0075] If the color difference between the clothes after washing and before washing is greater than the first preset difference, the proportion of pretreatment agent in the total detergent in the current addition scheme is increased, and the proportion of enzyme preparation in the total detergent in the current addition scheme is reduced.

[0076] The reason why the difference between the color of the clothes after washing and the color of the clothes before washing is obtained after washing in the embodiment of the present invention is that the enzyme preparation has a certain corrosiveness. In order to avoid discoloration after washing again when washing such clothes, the dosage ratio of the enzyme agent and the pretreatment agent in the dosage scheme is adaptively adjusted according to the color change of the washed clothes.

[0077] A second aspect of an embodiment of the present invention provides a clothes processing device, characterized in that it adopts the above-mentioned washing control method.

[0078] like Figure 3-Figure 5 As shown, the clothing processing device includes a clothing processing device shell 1, a door body 2, an inner drum 3, a drainage pump 4, a detergent dispensing box 5, a detergent dispensing box main body 501, a pre-treatment agent installation cavity 502, a pre-treatment agent storage box 503, an enzyme preparation installation cavity 504, an enzyme preparation storage box 505, a liquid dosing pump 6, a water inlet valve 7, a bubbler 8, a mixing chamber 9, a bubble pipeline 10, a liquid dosing pipe 11, a main water inlet pipe 12, a bubble outlet 13 and a shooting device 14.

[0079] Specifically, the clothes processing device in the embodiment of the present invention is provided with a detergent dispensing box 5 , and a plurality of detergent dispensing cavities are provided in the detergent dispensing box for placing different types of detergents.

[0080] Specifically, the multiple detergent storage chambers include a pre-treatment agent storage chamber and an enzyme preparation storage chamber, the pre-treatment agent storage chamber is used to replaceably place the pre-treatment agent, and the enzyme preparation storage chamber is used to replaceably place the enzyme preparation;

[0081] The pre-treatment agent storage chamber is connected to the bubbling pipeline through a liquid feeding pump. A bubbler is provided on the bubbling pipeline for feeding the pre-treatment agent onto the surface of the clothes in the form of foam or mist.

[0082] like Figure 3 As shown, a camera 14 is mounted above the door seal. The location of the camera 14 is not particularly limited. Besides the aforementioned mounting locations, the camera 14 can also be mounted on the door or the front housing of the washing machine, as long as it is convenient for the user to photograph stains on clothing. The camera 14 is used to photograph stains on clothing and transmit the captured images to an image processing module. The image processing module performs color recognition on the stains and matches them with pre-stored stain colors to determine the type of stain and the time of stain contamination.

[0083] In summary, the washing control method provided in the embodiments of the present invention uses a combination of a special pretreatment agent and an enzyme preparation for strong stain removal, and uses color recognition to judge the approximate time that the stain has been on the clothes to reasonably add the amount of pretreatment agent and enzyme preparation. This can not only achieve a good stain removal effect, but also avoid detergent waste, rinsing difficulties, and damage to clothes.

[0084] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0085] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A washing control method for a clothes processing device, characterized in that: The laundry treatment device uses a detergent comprising a pre-treatment agent and an enzyme preparation, and the washing control method comprises: Determine the detergent dosage plan based on the stain information of the clothes; The stain information includes the type of stain and the duration of the stain, and the detergent dosage plan includes the dosage combination of the pre-treatment agent and the enzyme preparation and the dosage ratio of the pre-treatment agent and the enzyme preparation to the total detergent; The washing control method further comprises: Obtaining the color information of the clothes before washing and the color of the clothes after washing, and determining the color difference value of the clothes after washing relative to the color before washing; Adjust the proportion of pretreatment agent and enzyme preparation in the total detergent in the current solution according to the color difference value.

2. The washing control method according to claim 1, characterized in that: The method of determining a detergent dispensing scheme based on the stain information of the clothes includes: Collect images of the clothes to be washed, identify the color of the stains on the surface of the clothes based on the clothes image, compare the pre-stored stain color information with the identified stain color information, and determine the stain type and stain contamination duration based on the comparison result.

3. The washing control method according to claim 2, characterized in that: The method of comparing the pre-stored stain color information with the identified stain color information includes: The HSV values ​​of the stain colors are compared, and the type of stain and the duration of the stain are determined based on the HSV value comparison results.

4. The washing control method according to any one of claims 1 to 3, characterized in that: The method for determining a detergent dispensing scheme based on the stain information of the clothes includes: The dosage combination of the pre-treatment agent and the enzyme preparation is determined based on the identified stain type, and the dosage ratio of the pre-treatment agent and the enzyme preparation to the total detergent under the dosage combination is determined based on the identified stain contamination duration.

5. The washing control method according to any one of claims 1 to 3, characterized in that: The method further comprises: Obtain the weight of the clothes and determine the total amount of detergent to be added based on the weight of the clothes; The amount of the pre-treatment agent and enzyme preparation added is determined according to the total amount of detergent added and the proportion of the pre-treatment agent and enzyme preparation in the total amount of detergent added.

6. The washing control method according to claim 5, characterized in that: The method further comprises: According to the determined amounts of pretreatment agent and enzyme preparation, the pretreatment agent is first added, and after running at a first speed for a first preset time, the enzyme preparation is added.

7. The washing control method according to claim 6, characterized in that: The method further comprises: The pre-treatment agent is controlled to be added in a mist or foam form, and after the enzyme preparation is added, the clothing treatment equipment is controlled to wash the clothing in a first preset temperature range.

8. The washing control method according to claim 1, characterized in that: The method of adjusting the proportion of pre-treatment agent and enzyme preparation to total detergent in the current dosage scheme according to the color difference value includes: If the color difference between the clothes after washing and before washing is greater than the first preset difference, the proportion of pretreatment agent in the total detergent in the current addition scheme is increased, and the proportion of enzyme preparation in the total detergent in the current addition scheme is reduced.

9. A clothes processing device, characterized in that: The washing control method according to any one of claims 1 to 8 is adopted.

10. The clothes processing device according to claim 9, characterized in that: The clothes processing equipment includes: A shooting device, used to obtain images of clothing; An image processing module is used to process the acquired clothing images to obtain the dosage combinations of different types of detergents and the proportions of different types of detergents in the total amount of detergents dispensed; A detergent dispensing box having multiple detergent storage chambers for storing different types of detergents; The plurality of detergent storage chambers include a pre-treatment agent storage chamber and an enzyme preparation storage chamber, wherein the pre-treatment agent storage chamber is used to store the pre-treatment agent, and the enzyme preparation storage chamber is used to store the enzyme preparation; The pre-treatment agent storage chamber is connected to the bubbling pipeline through a liquid feeding pump. A bubbler is provided on the bubbling pipeline for feeding the pre-treatment agent onto the surface of the clothes in the form of foam or mist.

Images