KR101040387B1 - Clothes treating method minimizing shrinkage and clothes treating apparatus using the same - Google Patents

Abstract

The present invention relates to a method for treating clothes and a processing apparatus for minimizing shrinkage damage, the method for treating clothes of a clothes treating apparatus including a drum and hot air supply means, comprising: a hot air supply step of supplying hot air to a drum; A moisture measurement step of periodically measuring the moisture content of the dry matter accommodated inside the drone; A moisture checking step of determining whether the measured moisture content is in a range of 3 to 7% by weight; And an end step of terminating the drying process when the moisture content of the dry matter is within the above range.

Dryer, hot air, shrink, jeans.

Description

CLOTHES TREATING METHOD MINIMIZING SHRINKAGE AND CLOTHES TREATING APPARATUS USING THE SAME}

The present invention relates to a method and apparatus for treating clothes for minimizing shrinkage damage, and more particularly, to a method and apparatus for treating clothes for minimizing damage due to shrinkage of clothes in a drying process of a clothes processing process.

Clothing processing apparatuses such as a dryer or a washing machine having a drying function (hereinafter, referred to as a 'dryer') induce a drying function by evaporating moisture contained in the clothing by blowing hot air into the clothing containing moisture after washing is completed. Will be performed. To this end, the dryer includes a drum for accommodating the clothes to be dried, a motor as a driving means for rotationally driving the drum, and hot wind supply means for supplying hot air into the drum.

The dry items accommodated in the drum are moved in the drum by the rotation of the drum, and in the process, moisture is evaporated by the contact with the hot air to dry. In order to determine whether the drying process is completed, the dryer may include a sensor for detecting the amount of moisture contained in the garment. In this case, the dryer determines whether the drying process is completed based on the amount of moisture detected by the sensor to execute or stop the drying process.

On the other hand, clothing shrinks in the process of drying by hot air. The degree of shrinkage varies depending on the type of clothing, but clothing such as jeans has a large degree of shrinkage, so that the fabric may be damaged due to shrinkage during drying. Therefore, attempts have been made to minimize the shrinkage of clothing in the drying process.

One such attempt is to control the temperature of the hot air supplied into the drum during the drying process. In other words, when using a low temperature hot air compared to the case of using a high temperature hot air, the shrinkage of clothes is relatively low, and the drying process is performed at a low temperature (about 55 ° C.) at the time of drying. It is. In the case of such a method, the shrinkage of the garment may be reduced to some extent, but the lower the temperature of the hot air, the longer the time required for the drying process. In particular, when the fabric is thick, such as jeans, there is a problem that the drying time is remarkably long, even if a low temperature hot air is used, there is a problem that some shrinkage damage is inevitable.

The present invention has been made to overcome the disadvantages of the prior art as described above, the technical problem is to provide a method for treating clothes that can minimize the shrinkage of the clothing during the drying process.

In addition, another object of the present invention is to provide a clothing treatment method capable of minimizing shrinkage of clothing while using high temperature hot air.

Another object of the present invention is to provide a clothes treating apparatus using the clothes treating method as described above.

According to an aspect of the present invention for achieving the above technical problem, a clothes processing method of a clothes treating apparatus including a drum and hot air supply means, the hot wind supply step of supplying hot air into the drum; A moisture measurement step of periodically measuring the moisture content of the dry matter accommodated inside the drone; A moisture checking step of determining whether the measured moisture content is in a range of 3 to 7% by weight; And an end step of terminating the drying process when the moisture content of the dry matter is within the above range.

The aspect of the present invention is to minimize the damage due to shrinkage during the drying process by controlling the content of moisture contained in the clothing during the clothing drying process. More specifically, if the moisture content at the time of completion of drying is 3% or more by weight ratio, damage due to shrinkage can be minimized. As a result, shrinkage damage can be prevented without lowering the temperature of the hot air supplied during drying, thereby making it possible to shorten the drying time. However, if the moisture content is too much, it corresponds to the case where the drying is not made, the upper limit is set to 7% of the moisture content that can feel a sense of dryness.

According to another aspect of the present invention, a clothes processing method of a clothes treating apparatus including a drum and hot air supply means, the hot air supply step of supplying hot air to the drum; A moisture measurement step of periodically measuring the moisture content of the dry matter accommodated inside the drone; A moisture checking step of determining whether the measured moisture content is in a range of 3 to 7% by weight; When the measured moisture content is within the above range, the process includes terminating the drying process after continuing the hot air supply for a predetermined time, wherein the predetermined time is changed according to the measured moisture content value, but shorter as it approaches 3%. Lost garments are provided.

In this aspect of the present invention, if the measured moisture content is within the above range, the drying is not immediately terminated, but hot air is continuously supplied for a predetermined time so that the final moisture content is close to 3%. Here, the predetermined time means a time taken for the final moisture content to be 3% in the measured moisture content, which is a value that varies depending on the specification of the clothes treating apparatus and the amount of water contained in the drum, and thus can be appropriately selected by those skilled in the art. However, the predetermined time is set short so that the moisture content can approach 3%. For example, when the measured moisture content is 5%, the duration of hot air supply should be relatively shorter than that of 6%.

Within this range, relatively low temperature hot air is supplied, thereby further preventing fabric shrinkage due to high temperature.

Here, the temperature of the hot wind supplied in the end step may be set to be lower than the hot wind temperature in the hot wind supply step. This makes it possible to enhance the shrinkage preventing effect. In addition, the drying time can be maintained about the same since only a part of the time of supplying the hot air of low temperature during the entire drying process.

Preferably, the temperature of the hot air supplied in the termination step may be proportional to the content of the measured moisture. That is, when the moisture content is measured at 4%, the time required to reach 3% is reduced, so even if the temperature is lowered, the time required for the shrinkage does not significantly increase, thereby further minimizing the damage to the fabric due to shrinkage.

According to another aspect of the invention, the main body; A drum installed in the main body and accommodating a dry matter therein; Hot air supply means for supplying hot air into the drum; Moisture sensing means for measuring a moisture content of the dry matter accommodated in the drum; And a control unit for controlling the operation of the hot air supply means and the drum, wherein the control unit is the clothing to terminate the drying process when the moisture content measured by the moisture detection means in the drying process is in the range of 3 to 7% by weight A processing device is provided.

Here, the moisture sensing means may include an electrode sensor having a pair of electrodes, and may measure moisture content through a voltage variation generated by a dry object contacting the pair of electrodes.

According to another aspect of the invention, the main body; A drum installed in the main body and accommodating a dry matter therein; Hot air supply means for supplying hot air into the drum; Moisture sensing means for measuring a moisture content of the dry matter accommodated in the drum; And a control unit for controlling the operation of the hot air supply means and the drum, wherein the control unit additionally adds the hot air for a predetermined time when the moisture content measured by the moisture sensing means in the drying process in the range of 3 to 7% by weight After the supply is finished, the drying process is terminated, and the predetermined time is changed according to the measured moisture content value, but the clothes treating apparatus is shortened closer to 3%.

Here, the temperature of the hot air additionally supplied during the predetermined time may be set lower than that of the previous hot air temperature.

In addition, the temperature of the hot air additionally supplied during the predetermined time may be proportional to the measured moisture content.

According to the aspects of the present invention having the configuration as described above, by directly controlling the moisture content rather than the temperature of the hot air can not only minimize damage due to shrinkage, shrinkage damage even without lowering the temperature of the hot air supplied during drying Since it can prevent, it becomes possible to shorten a drying time.

In addition, when the moisture content is within a predetermined range, control can be simplified by supplying hot air for a predetermined time without sensor measurement. In addition, in addition to controlling the moisture content in the drying process, it is possible to effectively control the temperature of the hot air to minimize damage due to shrinkage.

Hereinafter, with reference to the accompanying drawings to be described in detail with respect to the embodiment of the clothes processing method and the clothes processing apparatus using the same according to the present invention.

1, an embodiment of a clothes treating apparatus according to the present invention is shown, which is intended for a dryer. The dryer 100 includes a cabinet 102 constituting an external appearance of the apparatus, and a clothes inlet 104 is formed on a front surface of the cabinet 102 for injecting clothes to be dried into the cabinet 102. . The clothes inlet 104 is opened and closed by a door 106, and an operation panel 108 is disposed above the clothes inlet 104 to arrange various operation buttons for operating the dryer.

2 is a cross-sectional view schematically showing the internal structure of the dryer 100, a cylindrical drum 120 is rotatably mounted inside the cabinet 102, the front lower side of the drum 120 An air suction path 130 communicating with the drum 120 is formed. The air suction path 130 corresponds to a passage through which the internal air of the drum 120 is sucked and moved by the blower 134 which will be described later, and the sucked air is along the air path (not shown). To the side. In addition, the outside air introduced through the outside air inlet 132 formed on one side of the cabinet 102 is also moved to the blower 134 to exchange heat with the inside air of the drum 120.

A driving motor 136 is disposed at the rear side of the blower 134 and a blowing fan 140 is positioned at the driving shaft 138 of the driving motor 136. The blowing air 140 pumps heat-exchanged air into the inside of the hot air supply path 150 installed at the rear of the cabinet 102. The compressed air is heated by the heater 152 installed in the hot air supply path 150 while passing through the hot air supply path 150, and then re-supplied into the drum 120.

The supplied hot air contacts the clothes introduced into the drum 120 to dry the clothes, and then circulates inside the drum while moving to the blower 134 through the air suction path 130. On the other hand, the electrode sensor 122 is installed adjacent to the air intake passage 130, the electrode sensor 122 is included in the inside of the cloth while in contact with the cloth accommodated inside the drum 120 during the drying process It is to measure the amount of moisture.

Specifically, the electrode sensor 122 includes two electrodes, and continuously measures the voltage applied between the two electrodes during a drying process. When the cloth contacts the electrode, the voltage is caused by the resistance of the cloth. This fluctuates. At this time, the resistance of the cloth is changed according to the content of the moisture contained in the cloth, and thus the voltage fluctuation range is changed, so that the moisture content of the cloth can be measured based on this.

The moisture content measured in this way is transferred to a controller (not shown) included in the main body. The control unit periodically measures the moisture content inside the cloth through the electrode sensor during the process of supplying the hot air into the drum, and when the moisture content is within a predetermined standard, it is determined that the drying is completed to terminate the drying process. do. Here, whether the drying is complete is determined by whether the moisture content is 7% or less by weight.

On the other hand, if the fabric is too dry, shrinkage damage occurs as described above, which is prominent in fabrics such as jeans. 3 is a graph of the moisture content and shrinkage of the fabric. Referring to FIG. 3, it can be seen that the shrinkage changes rapidly based on a moisture content of 3% regardless of the temperature of the hot air used during drying. Therefore, when the drying time is determined so that the moisture content is 3% or more, it is possible to minimize the amount of shrinkage.

To this end, it is necessary to periodically detect the moisture content of the cloth through the electrode sensor, to adjust the moisture content to approach 3%. However, due to the limitation of the measurement process, it may be difficult to measure the moisture content quickly and accurately, and in some cases, excessive drying may be achieved such that the moisture content is 3% or less.

In order to prevent this, the moisture content and the drying time may be simultaneously used to adjust the moisture content to approach 3%. An example of such a moisture content control method is shown in FIG. 4.

When the drying process is started, hot air is supplied to the inside of the drum 120 through the hot air supply path 150 (S1). At the same time, the content of moisture (F) remaining inside the cloth is periodically measured through the electrode sensor 122 (S2), and it is determined whether the F value is 7% or less (S3). If the temperature is less than 7%, the hot air supply is continued. If the temperature is less than 7%, the flow moves to step S4.

In step S4, it is checked whether the F value is 3% or more. If the F value is not more than 3%, it is the case of excessive drying, and thus the drying process is finished. If the F value is not less than 3%, the process moves to step S5. In step S5, the difference between the measured F value and 3% is calculated and a predetermined time t that is proportional thereto is determined. The predetermined time t means a time taken for the moisture content to reach 3% from the measured F value, which is a value set in advance after a test.

Since the predetermined time t is affected by the amount of cloth and the temperature of the hot wind, the predetermined time t is determined in advance according to the amount of the cloth, the temperature of the hot wind, and the remaining F value, and stored in a controller (not shown) included in the dryer. You can put it. Therefore, t can be determined in consideration of the measured F value, the amount of cloth, hot air temperature, and the like.

When the hot air is additionally supplied for a predetermined time t determined as described above (S6), since the moisture content is close to 3%, the moisture content can be easily controlled. Here, by lowering the temperature of the hot air supplied in the step S6 it can further reduce the amount of shrinkage. That is, in step S1, while supplying high temperature hot air to shorten the time required for drying, the amount of shrinkage is reduced by supplying low temperature hot air in the step S6, thereby simultaneously reducing the drying time and the amount of shrinkage. In addition, when the temperature of the hot air is fixed to a specific value, the influence of the hot air temperature may not be taken into consideration in determining the predetermined time t value, thereby reducing computation time and the like.

In some cases, the closer the measured F value is to 3%, the lower the temperature of the hot air supplied in step S6. In this case, the total drying time can be reduced at a lower temperature without significantly increasing the shrinkage.

1 is a perspective view showing an embodiment of a clothes treating apparatus according to the present invention.

FIG. 2 is a schematic cross-sectional view of the embodiment shown in FIG. 1.

3 is a graph showing the relationship between moisture content and shrinkage amount.

4 is a flowchart illustrating a drying process in the embodiment.

Claims (9)

A clothes treating method of a clothes treating apparatus including a drum and hot air supply means, A hot air supply step of supplying hot air into the drum; A moisture measurement step of periodically measuring the moisture content of the dry matter accommodated inside the drone; A moisture checking step of determining whether the measured moisture content is in a range of 3 to 7% by weight; And Clothing processing method comprising the step of terminating the drying process when the water content of the dried object is within the range. A clothes treating method of a clothes treating apparatus including a drum and hot air supply means, A hot air supply step of supplying hot air into the drum; A moisture measurement step of periodically measuring the moisture content of the dry matter accommodated inside the drone; A moisture checking step of determining whether the measured moisture content is in a range of 3 to 7% by weight; If the measured moisture content is in the above range, and comprises the step of ending the drying process after continuing the hot air supply for a predetermined time, The predetermined time is changed according to the measured moisture content value, the shorter the closer to 3% clothing processing method. The method of claim 2, The temperature of the hot air supplied in the finishing step is lower than the hot air temperature in the hot air supply step clothes processing method. The method of claim 3, The temperature of the hot air supplied in the termination step is characterized in that the clothing treatment method is proportional to the content of the moisture. main body; A drum installed in the main body and accommodating a dry matter therein; Hot air supply means for supplying hot air into the drum; Moisture sensing means for measuring a moisture content of the dry matter accommodated in the drum; And It includes a control unit for controlling the operation of the hot air supply means and the drum, The control unit is a clothing processing apparatus to end the drying process when the moisture content measured by the moisture detection means in the drying process is in the range of 3 to 7% by weight. The method of claim 5, The moisture sensing means includes an electrode sensor having a pair of electrodes, clothes processing apparatus, characterized in that for measuring the moisture content through the voltage variation generated by the object to be in contact with the pair of electrodes. main body; A drum installed in the main body and accommodating a dry matter therein; Hot air supply means for supplying hot air into the drum; Moisture sensing means for measuring a moisture content of the dry matter accommodated in the drum; And It includes a control unit for controlling the operation of the hot air supply means and the drum, The control unit ends the drying process after additionally supplying hot air for a predetermined time when the moisture content measured by the moisture sensing means in the drying process is in the range of 3 to 7% by weight, The predetermined time is changed according to the measured moisture content value, the shorter the closer to 3% clothing processing apparatus. The method of claim 7, wherein The temperature of the hot air additionally supplied during the predetermined time is lower than the previous hot air temperature clothes processing apparatus, characterized in that. The method of claim 8, The temperature of the hot air is additionally supplied during the predetermined time is the clothes processing apparatus, characterized in that proportional to the measured moisture content.

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