EP4606944A1

EP4606944A1 - Clothing processing apparatus and method for manufacturing same

Info

Publication number: EP4606944A1
Application number: EP23891979.9A
Authority: EP
Inventors: Hyeokjin GWON; Kwanghyun KIM
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2022-11-16
Filing date: 2023-11-14
Publication date: 2025-08-27
Also published as: WO2024106912A1; EP4606944A4; KR20240071816A; CN120513327A; KR102892370B1; AU2023381002A1

Abstract

A clothing processing apparatus and a method for manufacturing same are disclosed. The clothing processing apparatus according to an embodiment of the present disclosure comprises: a cabinet including a loading opening through which clothes are put into the cabinet; and a door coupled to the cabinet to open/close the loading opening, wherein: the door comprises a door frame which is pivotally coupled to the cabinet and includes an outer surface facing the outside of the cabinet, and a door window which is coupled to the outer surface of the door frame; and the outer surface of the door frame includes a first region and a second region which has a larger polarity than the first region and is provided with an adhesive for coupling of the door window to the outer surface.

Description

TECHNICAL FIELD

The present disclosure relates to a clothing processing apparatus (i.e., a laundry treating apparatus) and a method of manufacturing the same, and more particularly, to a clothing processing apparatus including a door to open and close an inlet for clothes and a method of manufacturing the same.

BACKGROUND ART

A clothing processing apparatus is an apparatus capable of performing a washing course by putting clothes, bedding, etc. (hereinafter referred to as laundry) into a drum and removing contaminants from the laundry. In addition to the washing course, the clothing processing apparatus may perform a rinsing course, a spin-drying course, a drying course, etc.
The clothing processing apparatus may include a cabinet forming an exterior, a tub provided within the cabinet, and a drum rotatably provided within the tub to accommodate laundry.
The clothing processing apparatus may include a detergent supply device that supplies a detergent into the tub or the drum to perform the washing course, or the like. When the drum rotates while washing water and a detergent are supplied into the tub, contaminants may be removed from laundry by friction with the drum, the washing water, etc.
The detergent supply device may have a detergent supply function to enhance the washing effect. Here, the detergent may include all substances that enhance the washing effect, such as a laundry detergent that induces decomposition and separation of contaminants, a fabric softener that improves the flexibility of the fabric of laundry, and a bleach that reduces color contamination of laundry. The detergent may include both powder and liquid forms.
Further, the cabinet includes an inlet opened so that laundry may be put into the cabinet therethrough. A user is able to put laundry into the cabinet through the inlet of the cabinet, and the laundry may be accommodated in the drum.
In addition, the clothing processing apparatus includes a door configured to open and close the inlet. The door may be coupled to the cabinet to open or close the inlet depending on a change in position.
For example, the door may be rotatably coupled to the cabinet, and when the door is rotated to be away from the inlet, the inlet is opened, and when the door is rotated to be in close contact with the inlet, the inlet is closed.
Further, the door may include a door opening opened so that the user may check the inside of the cabinet through the inlet, and may include a door window that is light transmissive and covers the door opening so that the inside of the cabinet may be sealed when the inlet is closed despite the formation of the door opening.
Related document KR 10-2188581 B1 discloses a clothing processing apparatus provided with a door. The door of the related document includes a door frame including a door opening, and a door window coupled to the door frame.
The door of the related document utilizes an adhesive when coupling the door window and the door frame. This method of coupling the door window using the adhesive is advantageous because no separate coupling member is exposed to the outside of the door window.
Furthermore, if the door window or the door frame is formed of a material that is vulnerable to damage and has relatively low formability, such as glass, it is disadvantageous to form a through hole that is penetrated by a bolt, etc., or a hook, and therefore, the coupling method using the adhesive may be more advantageous.
However, in the case of coupling the door frame and the door window by simply applying the adhesive to the door frame or the door window as in the related document, the adhesive may be separated from the door frame or the door window, thus causing a problem in which the door window is separated.
For example, in the case of simply applying the adhesive to the door frame, poor application of the adhesive or a decrease in the adhesive strength between the door frame and the adhesive may easily occur, and as the load of the door window increases, the door window may be vulnerable to separation.
Accordingly, it is an important task in this technical field to effectively increase the bonding strength between the adhesive and the door frame and effectively improve the application stability of the adhesive to realize stable coupling of the door window.

DISCLOSURE

TECHNICAL TASK

A technical task of the present disclosure is to provide a clothing processing apparatus including a door configured to open and close an inlet and a method of manufacturing the same.
In addition, another technical task of the present disclosure is to provide a clothing processing apparatus capable of effectively stabilizing the coupling structure of a door window and a method of manufacturing the same.
In addition, another technical task of the present disclosure is to provide a clothing processing apparatus capable of stably coupling a door window to a door frame using an adhesive and a method of manufacturing the same.
In addition, another technical task of the present disclosure is to provide a clothing processing apparatus capable of effectively improving the adhesive strength between a door window and a door frame and a method of manufacturing the same.
In addition, another technical task of the present disclosure is to provide a clothing processing apparatus capable of effectively improving the bonding performance of an adhesive to a door frame and a method of manufacturing the same.
In addition, another technical task of the present disclosure is to provide a clothing processing apparatus capable of increasing the bonding strength of a door frame with an adhesive by imparting polarity to the door frame and a method of manufacturing the same.
In addition, another technical task of the present disclosure is to provide a clothing processing apparatus capable of effectively improving completeness of the exterior of a product by shielding a part of a door frame from the outside and a method of manufacturing the same.

TECHNICAL SOLUTIONS

In accordance with one aspect of the present disclosure, a clothing processing apparatus includes a cabinet provided with an inlet and a door configured to open and close the inlet. The door may include a door frame and a door window, and the door window may be coupled to the door frame using an adhesive.
The door window may be coupled to a front surface of the door frame, and the front surface of the door frame may include a first region and a second region. The first region and the second region may be defined on the surface surface of the door frame, and the second region may have a greater polarity than the first region and be configured such that the adhesive is provided to the second region.
The polarity may be formed by a chemical treatment. For example, more ionized molecules may be combined with the surface of the second region than the first region. The first region may be in a non-polar state, and the second region may be in a polar state.
The second region may have the increased polarity through a polarity treatment process. For example, the second region may have the polarity through a corona treatment process or a plasma treatment process.
In accordance with one aspect of the present disclosure, a clothing processing apparatus includes a cabinet and a door. The cabinet includes an inlet configured to allow clothes to be put into the cabinet therethrough. The door is coupled to the cabinet to open and close the inlet.
The door includes a door frame and a door window. The door frame is rotatably coupled to the cabinet, and includes an outer surface configured to face an outside of the cabinet.
The door window is coupled to the outer surface of the door frame. The outer surface of the door frame includes a first region, and a second region having a greater polarity than the first region and configured such that an adhesive configured to couple the door window to the outer surface is provided to the second region.
The second region may have the greater polarity than the first region through a polarity treatment process.
An electronegativity difference between the second region and the adhesive may be greater than an electronegativity difference between the first region and the adhesive. The second region may extend along a perimeter of the outer surface to surround the first region.
The outer surface may include a flat portion configured to form a flat surface and including the second region. The outer surface may include a curved portion configured to form a curved surface and including the first region.
The flat portion may extend along a perimeter of the outer surface to surround the curved portion.
The door frame may include a door opening provided in the outer surface to be opened toward the inlet, and the curved portion may surround the door opening and be curved toward an inside of the cabinet as the curved portion approaches the door opening.
An adhesive groove configured such that the adhesive is provided thereto may be formed in the outer surface, and at least a portion of the adhesive groove may include the second region. At least a portion of a bottom surface of the adhesive groove may be processed to have polarity to form the second region.
The door window may include a light-transmitting portion configured to allow light transmission and a non-transmitting portion configured to block light transmission, and the adhesive may be provided to overlap the non-transmitting portion.
The second region may extend along a perimeter of the outer surface, and the non-transmitting portion may extend along a perimeter of the door window to shield the second region from outside.
The outer surface may include a door opening configured to be opened toward an inside of the cabinet, and the non-transmitting portion may be disposed to surround the door opening.
The outer surface may include a flat portion configured to form a flat surface and extend along a perimeter of the outer surface, and provided such that at least a part of the flat portion overlaps the non-transmitting portion, and a curved portion located between the flat portion and the door opening to surround the door opening, and provided such that at least a part of the curved portion overlaps the light-transmitting portion.
The second region may be processed to have polarity through a plasma treatment method. The second region may be processed to have polarity through a corona treatment method.
The second region may include a greater amount of oxygen than the first region. The second region may include a less amount of carbon than the first region. The second region may have a smaller water contact angle than the first region.
The door window may include a glass material, and the outer surface of the door frame may include a plastic material.
In accordance with one aspect of the present disclosure, a clothing processing apparatus includes a cabinet including an inlet configured to allow clothes to be put into the cabinet therethrough, and a door coupled to the cabinet to open and close the inlet.
The door includes a door frame rotatably coupled to the cabinet and including an outer surface configured to face an outside of the cabinet, and a door window coupled to the outer surface of the door frame.
The outer surface of the door frame includes a polarity region formed by a polarity treatment so that an adhesive configured to couple the door window to the outer surface is provided thereto.
In accordance with one aspect of the present disclosure, a method of manufacturing a clothing processing apparatus includes a frame forming step, a polarity treatment step, and a door window coupling step.
In the frame forming step, a door frame including an outer surface configured to face an outside of a cabinet is formed. In the polarity treatment step, a polarity treatment process is performed so that a second region excluding a first region among the outer surface of the door frame has a greater polarity than the first region. In the door window coupling step, a door window is coupled to the second region using an adhesive.
The method may include a washing step and, in the washing step, a degreasing process configured to remove oil from the outer surface of the door frame may be performed, before the polarity treatment step.
In the polarity treatment step, the second region may be formed to extend along a perimeter of the door frame to surround the first region. In the frame forming step, the outer surface of the door frame may be formed to include an adhesive groove configured such that the adhesive is provided thereto.
In the polarity treatment step, the second region may be formed in at least a portion of the adhesive groove.

ADVANTAGEOUS EFFECTS

Embodiments of the present disclosure provide a clothing processing apparatus including a door configured to open and close an inlet and a method of manufacturing the same.
In addition, embodiments of the present disclosure provide a clothing processing apparatus capable of effectively stabilizing the coupling structure of a door window and a method of manufacturing the same.
In addition, embodiments of the present disclosure provide a clothing processing apparatus capable of stably coupling a door window to a door frame using an adhesive and a method of manufacturing the same.
In addition, embodiments of the present disclosure provide a clothing processing apparatus capable of effectively improving the adhesive strength between a door window and a door frame and a method of manufacturing the same.
In addition, embodiments of the present disclosure provide a clothing processing apparatus capable of effectively improving the bonding performance of an adhesive to a door frame and a method of manufacturing the same.
In addition, embodiments of the present disclosure provide a clothing processing apparatus capable of increasing the bonding strength of a door frame with an adhesive by imparting polarity to the door frame and a method of manufacturing the same.
In addition, embodiments of the present disclosure provide a clothing processing apparatus capable of effectively improving completeness of the exterior of a product by shielding a part of a door frame from the outside and a method of manufacturing the same.

DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view showing the exterior of a clothing processing apparatus according to one embodiment of the present disclosure.
FIG. 2 is a cross-sectional view showing the interior of the clothing processing apparatus according to one embodiment of the present disclosure.
FIG. 3 is a view showing a door of the clothing processing apparatus according to one embodiment of the present disclosure.
FIG. 4 is an exploded perspective view of the door of the clothing processing apparatus according to one embodiment of the present disclosure.
FIG. 5 is a perspective view showing a door frame of the door according to one embodiment of the present disclosure.
FIG. 6 is a front view showing the door frame of the door according to one embodiment of the present disclosure.
FIG. 7 is a view showing an outer surface of the door frame according to one embodiment of the present disclosure.
FIG. 8 is a view showing a state in which an adhesive is provided on the door frame according to one embodiment of the present disclosure.
FIG. 9 is a view showing a state in which a door window is coupled to the door frame according to one embodiment of the present disclosure.
FIG. 10 is a view schematically showing a treatment process of a door frame according to one embodiment of the present disclosure.
FIG. 11 illustrates an elemental change due to the treatment process of the door frame according to one embodiment of the present disclosure.
FIG. 12 illustrates a change in ionized molecules due to the treatment process of the door frame according to one embodiment of the present disclosure.
FIG. 13 illustrates a change in an XPS analysis graph due to the treatment process of the door frame according to one embodiment of the present disclosure.
FIG. 14 illustrates a change in a water contact angle due to the treatment process of the door frame in one embodiment of the present disclosure.
FIG. 15 is a flowchart showing a method of manufacturing a clothing processing apparatus according to one embodiment of the present disclosure.

BEST MODE FOR DISCLOSURE

Hereinafter, with reference to the accompanying drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art may easily implement the present disclosure.
However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present disclosure, parts that are not related to the description are omitted in the drawings, and similar parts are given similar drawing reference numerals throughout the description.
In the following description, duplicate descriptions of identical components are omitted.
In addition, in the following description, when a component is referred to as being "coupled to" or "connected to" another component, it should be understood that the component may be directly coupled or connected to the other component, or other intervening components may be present. In contrast, when a component is referred to as being "directly coupled to" or "directly connected to" another component, it should be understood that there are no intervening components present.
In addition, the terms used herein are only used to describe specific embodiments and are not intended to limit the present disclosure.
In addition, in the following description, a singular expression may encompass a plural expression unless the context clearly indicates otherwise.
In addition, in the following description, terms, such as "including", "comprising", and "having", are to be interpreted as indicating the presence of characteristics, numbers, steps, operations, elements or parts stated in the description or combinations thereof, and do not exclude the presence of one or more other characteristics, numbers, steps, operations, elements, parts or combinations thereof, or possibility of adding the same.
As used herein, the term "and/or" includes any and all combinations of one or more of a plurality of listed items or any item among the plurality of listed items. In the following description, "A or B" may include "A", "B", or "both A and B".
FIG. 1 illustrates the exterior of a clothing processing apparatus 1 according to one embodiment of the present disclosure. One embodiment of the present disclosure includes a cabinet 10. The cabinet 10 includes a space in which a tub 20 and/or a drum 30, which will be described later, may be provided.
The cabinet 10 may include a plurality of panels, and the plurality of panels may have a connection relationship with each other so that the space is formed therein. The plurality of panels may include a front panel 11, a rear panel, a top panel, side panels, etc.
The cabinet 10 may be provided with an inlet 15 through which clothes is put into the cabinet 10. The inlet 15 may be provided so as to connect the inside and the outside of the cabinet 10. A user may put clothes, etc. into the cabinet 10 through the inlet 15.
FIG. 1 illustrates the inlet 15 is provided in the front panel 11 according to one embodiment of the present disclosure. The formation position of the inlet 15 is not limited to the front panel 11, and may be provided in, for example, the upper panel, or the like.
However, for the convenience of explanation, the following description will be based on a top-loader type clothing processing apparatus 1 in which the inlet 15 is provided in the front panel 11 of the cabinet 10 unless otherwise stated.
One embodiment of the present disclosure includes a door 100, and the door 100 may be provided to open and close the inlet 15 of the cabinet 10. For example, the door 100 may be rotatably provided on the cabinet 10, and may open or close the inlet 15 depending on the rotated position of the door 100.
One embodiment of the present disclosure may include a control panel 80, and the control panel 80 may provide various information to a user or be operated by the user to generate an input signal.
FIG. 2 illustrates the interior of the clothing processing apparatus 1 according to one embodiment of the present disclosure. One embodiment of the present disclosure may include a tub 20 and a drum 30. The tub 20 may be installed in the cabinet 10 and configured to store water.
The tub 20 may have an approximately cylindrical shape and may include a tub opening 25 that is opened toward the inlet 15. The tub opening 25 may be located in the front surface of the tub 20, and clothes put through the inlet 15 may be put into the tub 20 through the tub opening 25.
The drum 30 may be installed in the tub 20 and clothes may be accommodated in the drum 30. The drum 30 may be installed to be rotatable within the tub 20 and may receive rotational power through a driver 70.
The drum 30 may have a shape corresponding to the tub 20 and may have an approximately cylindrical shape to facilitate rotation. The drum 30 may include a drum opening 35 that is opened toward the inlet 15 and the tub opening 25. Accordingly, clothes introduced through the inlet 15 may pass through the tub opening 25 and the drum opening 35 and be accommodated in the drum 30.
A plurality of holes may be formed through the circumferential surface of the drum 30 so that water in the tub 20 may flow into the drum 30 therethrough. Water stored in the tub 20 may be supplied to the inside of the drum 30 by the plurality of holes, and accordingly, water in the tub 20 may be synonymous with water in the drum 30 in the present disclosure.
Although, referring to FIG. 2, the clothing processing apparatus 1 according to one embodiment of the present disclosure is described as a washing machine that stores water in the tub 20 to wash clothes, the clothing processing apparatus 1 according to one embodiment of the present disclosure is not limited to the washing machine including the tub 20, and if necessary, the clothing processing apparatus 1 may correspond to a drying machine including a hot air supply that supplies hot air to a drum 30 without a tub 20.
However, for convenience of explanation, unless otherwise stated, one embodiment of the present disclosure will be described below in a form including the tub 20 that stores water.
One embodiment of the present disclosure may include a water supply 40. The water supply 40 may be connected to an external water supply source located outside the cabinet 10, and may receive water from the external water supply source and deliver the received water to the inside of the tub 20.
The water supply 40 may include at least one water supply pipe and at least one water supply valve, and may be provided to be directly connected to the tub 20 to supply water to the inside of the tub 20, or may be connected to a detergent supply device 50 in which detergent is stored to supply water to the inside of the tub 20 through the detergent supply device 50.
The detergent supply device 50 may be provided to store a detergent, and may supply the detergent to the inside of the tub 20 when a course for washing clothes is performed. The detergent supply device 50 may be connected to the water supply 40 to supply water and the detergent together to the inside of the tub 20.
One embodiment of the present disclosure may include a drainage device 60, and water in the tub 20 may be discharged to the outside of the tub 20 through the drainage device 60. The drainage device 60 may include at least one drain pipe and a drainage pump, and may be provided to discharge water in the tub 20 to the outside of the cabinet 10.
Further, FIG. 2 illustrates the door 100 located to close the inlet 15. The door 100 may be provided to prevent water in the tub 20 from leaking out of the cabinet 10 through the inlet 15 in the closed state of the inlet 15.
The door 100 may include a door window 300 and an inner window 400. The door window 300 may be provided to form at least a part of the exterior of the door 100, and the inner window 400 may be provided in a shape in which at least a part of the inner window 400 protrudes into the tub 20 to prevent clothes in the drum 30 from moving toward the inlet 15.
Further, FIG. 3 illustrates a front view of the door 100 of the clothing processing apparatus 1 according to one embodiment of the present disclosure. In one embodiment of the present disclosure, the door 100 includes a door frame 200 and the door window 300.
The door frame 200 may form the body of the door 100. The door frame 200 may be coupled to the cabinet 10. The cross-sectional shape of the door frame 200 may approximately correspond to the shape of the inlet 15.
FIG. 3 illustrates the door 100 having a circular cross-sectional shape corresponding to the approximately circular inlet 15 according to one embodiment of the present disclosure. The cross-sectional area of the door 100 may be greater than or equal to the cross-sectional area of the inlet 15, and may thus easily seal the inlet 15.
The door frame 200 may include a door opening 105 that communicates with the inlet 15. The door opening 105 may be opened toward the inside of the tub 20 or the drum 30, and thus, a user may visually check the inside of the drum 30 through the door opening 105 even when the inlet 15 is closed by the door 100.
The door opening 105 may be located to include the center of the door frame 200. That is, the door opening 105 may be disposed approximately in the center of the door frame 200. In addition, the door frame 200 may include an outer surface 220 facing the outside of the cabinet 10, and the door opening 105 may be located on the outer surface 220.
The door window 300 may be coupled to the outer surface 220 of the door frame 200. The door window 300 may form the exterior of the door 100, and a portion of the door window 300 overlapping a portion of the door opening 105 may be provided to have light transmittance so that the inside of the drum 30 may be viewed through the door opening 105.
The door window 300 may be provided with a light-transmitting portion 310 that has light transmitting properties in an area overlapping the door opening 105 so as to easily transmit light so that a user may visually identify the inside of the drum 30 through the door window 300 and the door opening 105.
Furthermore, the door window 300 may include a non-transmitting area that does not allow light to pass therethrough, so as to improve the aesthetics of the exterior and further prevent a portion of the structure of the door frame 200 from being visually identified from the outside of the cabinet 10.
That is, in one embodiment of the present disclosure, the door window 300 may include the light-transmitting portion 310 having light transmitting properties and a non-transmitting portion 320 that does not transmit light, at least a part of the light-transmitting portion 310 may be disposed to overlap the door opening 105, and the non-transmitting portion 320 may shield at least a portion of the remainder of the outer surface 220 of the door frame 200 excluding the door opening 105 from the outside.
The method of forming the non-transmitting portion 320 may vary. The door window 300 may be formed of a light-transmitting material in an area including the light-transmitting part 310, and the non-transmitting portion 320 may be printed on the surface of the door window 300, or an opaque film may be attached to the surface of the door window 300 or interposed in the door window 300.
The non-transmitting portion 320 may extend along the perimeter of the door window 300. The non-transmitting portion 320 may be provided in an approximately ring shape and may be disposed around the perimeter of the door window 300. The light-transmitting part 310 may be surrounded by the non-transmitting portion 320.
The boundary between the light-transmitting portion 310 and the non-transmitting portion 320 may form a clear line, or may form a blurring area that becomes blurrier as the blurring area approaches from the non-transmitting portion 320 to the light-transmitting portion 310.
In addition, the non-transmitting portion 320 is significant in preventing the opposite side of the door window 300 from being visible from the outside of the cabinet 10, such as the door frame 200, and therefore, it is disadvantageous to dispose a screen display, etc. in the non-transmitting portion 320, and in one embodiment of the present disclosure, the control panel 80 including the screen display, etc. may be disposed in an area other than the door 100.
Further, the door 100 may include the inner window 400, and the inner window 400 may be disposed closer to the inside of the cabinet 10 than the door window 300 to seal the door opening 105.
Accordingly, the door opening 105 formed in the door frame 200 may be sealed by the door window 300 outside the cabinet 10, and may be sealed by the inner window 400 inside the cabinet 10.
The inner window 400 may be provided to have light transmitting properties so that a user may visually identify the inside of the drum 30, in the same manner as the light-transmitting portion 310 of the door window 300.
Accordingly, in one embodiment of the present disclosure, the outside and inside of the door opening 105 may be sealed by the door window 300 and the inner window 400 so that water in the tub 20 may be prevented from leaking through the door opening 105, and a user may effectively check the inside of the drum 30 through the door opening 105 by the light transmitting properties of the light-transmitting portion 310 of the door window 300 and the inner window 400.
In addition, the door frame 200 may include a circumferential protrusion 235 extending along the perimeter of the door frame 200. The circumferential protrusion 235 may protrude from the perimeter of the outer surface 220 of the door frame 200 toward the outside of the cabinet 10.
Accordingly, a coupling space for coupling the door window 300 to the door frame 200 may be defined by the circumferential protrusion 235 on the outer surface 220 of the door frame 200. The circumferential protrusion 235 may be provided to extend along the perimeter of the door window 300 and surround the circumferential surface of the door window 300.
The circumferential protrusion 235 may prevent damage to the circumference of the door window 300 and strengthen the fixing force of the door window 300 to the coupling position. That is, the door window 300 may be inserted into the coupling space defined by the circumferential protrusion 235 so as to be fixed.
Further, FIG. 4 is an exploded perspective view of the door 100 of the clothing processing apparatus 1 according to one embodiment of the present disclosure.
In one embodiment of the present disclosure, the door 100 may include the door window 300, and the door window 300 may include the light-transmitting portion 310 and the non-transmitting portion 320, and may be coupled to the outer surface 220 of the door frame 200 so as to be fixed.
The door frame 200 may include an outer frame 210 and an inner frame 260. Each of the outer frame 210 and the inner frame 260 may have the door opening 105 formed therein. That is, the door opening 105 of the outer frame 210 and the door opening 105 of the inner frame 260 may form one door opening 105 as the outer frame 210 and the inner frame 260 are coupled to each other.
The outer frame 210 may include the above-described outer surface 220 of the door frame 200. That is, in one embodiment of the present disclosure, the outer surface 220 of the outer frame 210 may be understood as the same object as the outer surface 220 of the door frame 200.
In addition, the door frame 200 or the outer frame 210 may include a flat portion 226 forming a flat surface and a curved portion 228 forming a curved surface. A detailed description of the flat portion 226 and the curved portion 228 will be described later.
An adhesive 150 may be provided between the door window 300 and the outer surface 220 of the door frame 200. The door window 300 may be adhered and coupled to the door frame 200 by the adhesive 150. In one embodiment of the present disclosure, the door window 300 may be coupled to the door frame 200 using only the adhesive 150.
For example, coupling of the door window 300 to the door frame 200 may be completed through the adhesive 150 without providing a separate coupling member. However, of course, a coupling member, such as a hook or a bolt, may be added as needed.
The adhesive 150 may be provided in a sealant or other various types for bonding between objects. In addition, the adhesive 150 may be provided in various forms, such as a fluid form, a film form, and a tape form. The adhesive 150 may be provided on the outer surface 220 of the door frame 200 or the inner surface of the door window 300 facing the outer surface 220 of the door frame 200.
In the case in which the door window 300 is coupled to the door frame 200 by an adhesion method using the adhesive 150, there is no need to provide a hole, a hook, or the like for mutual coupling to the door window 300 or the door frame 200, and therefore, this method has advantages in molding and manufacturing.
For example, in the case in which the door window 300 is manufactured using a glass material to secure light transmitting properties, there is a limit to molding a hole, a hook, or the like due to the characteristics of the glass material, and the risk of breakage may increase.
Furthermore, even though a hole or a hook is provided in the door window 300, when a coupling member for coupling the door window 300 and the door frame 200 is provided, at least a part of the coupling member is eventually exposed to the outside of the door 100, thereby reducing completeness of the exterior of a product.
Accordingly, one embodiment of the present disclosure may couple the door window 300 and the door frame 200 using the adhesive 150, thereby being capable of reducing the risk of damage to the door window 300, etc., and manufacturing the door 100 with a high degree of completeness without exposure of a coupling member, etc.
In one embodiment of the present disclosure, the door frame 200 may be formed by coupling the outer frame 210 and the inner frame 260, and the perimeter of the inner window 400 may be disposed between the outer frame 210 and the inner frame 260, so that the inner window 400 may be coupled and fixed to the door frame 200 together with the coupling between the outer frame 210 and the inner frame 260. However, if necessary, the inner window 400 may be separately coupled to one of the outer frame 210 and the inner frame 260.
Further, among the light-transmitting portion 310 that allows light transmission and the non-transmitting portion 320 that blocks light transmission, the non-transmitting portion 320 may be disposed to overlap the adhesive 150. That is, the adhesive 150 may be provided to overlap the non-transmitting portion 320.
Accordingly, the adhesive 150 may not be visually identified from the outside of the cabinet 10 through the door window 300, thereby improving the completeness of the exterior of a product.
The non-transmitting portion 320 may be disposed to surround the door opening 105. The light-emitting portion 310 may be disposed to overlap the door opening 105, and the non-transmitting portion 320 may be disposed to surround the door opening 105 and/or the light-emitting portion 310. The non-transmitting portion 320 may have a ring shape extending along the perimeter of the door window 300.
In addition, in one embodiment of the present disclosure, the flat portion 226 provided on the door frame 200 extends along the perimeter of the outer surface 220, and at least a part of the flat portion 226 may overlap the non-emitting portion 320. In addition, the curved portion 228 may be located between the flat portion 226 and the door opening 105 to surround the door opening 105, and at least a part of the curved portion 228 may overlap the light-emitting portion 310.
Further, the door 100 may include a hinge 250, and the hinge 250 may be provided on the door frame 200 to be coupled to the cabinet 10. That is, the door frame 200 may be provided to be rotatable through the hinge 250 coupled to the cabinet 10.
Further, FG. 5 shows a perspective view of the outer frame 210 of the door 100 in one embodiment of the present disclosure, and FIG. 6 shows a front view of the outer frame 210. For convenience of explanation, unless otherwise stated, the outer frame 210 of the door frame 200 will be described as being synonymous with the door frame 200 itself.
The door frame 200 may have an approximately circular shape, and the door opening 105 may be formed in the center of the door frame 200. That is, the outer surface 220 of the door frame 200 may be provided to surround the door opening 105. The outer surface 220 of the door frame 200 may include the flat portion 226 and the curved portion 228, as described above.
The flat portion 226 may form a flat surface. For example, when the door 100 is provided on the front panel 11 of the cabinet 10, the flat portion 226 may form a surface that maintains a constant slope with respect to the ground. The flat portion 226 may also form a surface that is perpendicular to the ground.
The curved portion 228 may form a curved surface. The curved portion 228 may be provided to surround the door opening 105. That is, the curved portion 228 may define the perimeter of the door opening 105.
The curved portion 228 may form a curved surface toward the inside of the cabinet 10 as the curved portion 228 approaches the door opening 105. The curved portion 228 may be disposed between the flat portion 226 and the door opening 105. That is, the curved portion 228 may be provided to surround the door opening 105, and the flat portion 226 may be provided to surround the curved portion 228.
The flat portion 226 may form a surface parallel to the inner surface of the door window 300. The door window 300 may be coupled to the flat portion 226 through the adhesive 150, thereby improving the uniformity and stability of the coupling.
The curved portion 228 of the outer frame 210 may be curved toward the door opening 105 of the inner frame 260 as the curved portion 228 approaches to the center of the door opening 105, and accordingly, it may be easy for the door opening 105 of the outer frame 210 and the door opening 105 of the inner frame 260 to form one hole, i.e., the door opening 105 of the door 100.
The circumferential protrusion 235 may be located on the outer end of the flat portion 226, i.e., the outer perimeter of the door frame 200. The circumferential protrusion 235 may extend forward from the outer frame 210 or the inner frame 260.
Further, FIG. 7 illustrates the outer surface 220 of the door frame 200 in one embodiment of the present disclosure. In one embodiment of the present disclosure, the door window 300 may be coupled to the outer surface 220 of the door frame 200.
The flat surface 226 defined on the outer surface 220 of the door frame 200 may have a surface parallel to the door window 300, and the inner surface of the door window 300 may be coupled to the flat surface 226. The adhesive 150 may be provided on the flat surface 226, and accordingly, the distribution of the adhesive 150 may be uniform.
An adhesive groove 230 to which the adhesive 150 is provided may be formed on the outer surface 220. The adhesive 150 may be provided to the adhesive groove 230. The adhesive groove 230 may have a ring shape extending along the perimeter of the door frame 200. However, of course, this groove for the adhesive 150 may have a ring shape including one or more segments, if necessary.
In one embodiment of the present disclosure, the adhesive 150 or the adhesive groove 230 may be provided on or in the flat portion 226 or the curved portion 228, and FIG. 7 illustrates a state in which the adhesive 150 or the adhesive groove 230 is provided on or in the flat portion 226 to ensure uniformity of an adhesive area.
The adhesive groove 230 may be located adjacent to the circumferential protrusion 235 of the door frame 200, thereby being capable of securing the maximum sealing area for the door opening 105 and maximizing the damage prevention and coupling strength of the door window 300.
FIG. 8 illustrates a state in which the adhesive 150 is provided to the adhesive groove 230 of the door frame 200 according to one embodiment of the present disclosure. The adhesive groove 230 may provide a space in which the adhesive 150 is accommodated.
The adhesive groove 230 may be disposed in the flat surface 226, and a leakage prevention groove 235 may be provided on the outer side and/or inner side of the adhesive groove 230 in the radial direction of the door frame 200. The leakage prevention groove 235 may be provided in a ring shape surrounding the inner or outer perimeter of the adhesive groove 230.
In one embodiment of the present disclosure, the adhesive 150 accommodated in the adhesive groove 230 may be pressed by the door window 300 when the door window 300 is coupled, and may leak out of the adhesive groove 230, but since the adhesive 150 that leaks out of the adhesive groove 230 may be accommodated in the leakage prevention groove 235, an area where the adhesive 150 may be distributed may be effectively limited by the leakage prevention groove 235.
The adhesive 150 may be provided to the adhesive groove 230 to be disposed along the perimeter of the door frame 200, and thus, sealing performance between the door window 300 and the door frame 200 may be secured.
Further, FIG. 9 illustrates a state in which the door window 300 is coupled to the outer surface 220 of the door frame 300 according to one embodiment of the present disclosure. The door window 300 may be adhered and fixed to the outer surface 220 of the door frame 200 through the adhesive 150.
The flat portion 226 of the outer surface 220 of the door frame 200 may form a surface parallel to the door window 300 and stably support the door window 300. The curved portion 228 of the outer surface 220 of the door frame 200 may be formed to be gradually curved toward the inside of the cabinet 10 while extending from the flat portion 226, thereby allowing the door opening 105 to be naturally formed. The circumferential surface of the door window 300 may be surrounded by the circumferential protrusion 235 of the door frame 200, thereby being capable of being protected from external impact.
Further, the outer surface 220 of the door frame 200 may include a first region 222, and a second region 224 having a greater polarity than the first region 222 and to which the adhesive 150 for bonding the door window 300 is provided.
In the door frame 200, the first region 222 may be defined as the remaining region excluding the second region 224, and the second region 224 may be defined as a region having a greater polarity than the first region 222.
A method of increasing the polarity of the second region 224 may vary. The second region 224 may be formed of a material having a greater polarity than a material forming the first region 222, or may be processed to generate polarity.
Specifically, the door frame 200 may include various materials, i.e., plastic such as ABS, and accordingly, the outer surface 220 of the door frame 200 may be in a non-polar state like plastic. However, in one embodiment of the present disclosure, the second region 224 defined on the outer surface 220 of the door frame 200 may be processed to have polarity so that the bonding strength with the adhesive 150 may be improved.
The second region 224 may be formed on the entirety of the outer surface 220 of the door frame 200, or may be formed on a portion of the outer surface 220. The adhesive 150 may be provided to the second region 224, thereby being capable of greatly improving the bonding strength due to an increase in an electronegativity difference with the second region 224 having polarity.
FIG. 10 schematically illustrates a polarity treatment process that generates or increases the polarity of the second region 224 of the door frame 200 in one embodiment of the present disclosure. The second region 224 may have a greater polarity than the first region 222 through the polarity treatment process.
That is, the second region 224 may be understood as a polarity region formed by performing polarity treatment on at least a portion of the outer surface 220 of the door frame 200.
The polarity treatment process may vary. For example, the second region 224 may be processed to have polarity through a corona treatment method, or the second region 224 may be processed to have polarity through a plasma treatment method. In addition, various methods may be used to generate or increase polarity.
The corona treatment method is a method in which a target is located between electrodes having a large voltage difference to generate polarity, and the plasma treatment method is a method in which ionized gas generated by a plasma phenomenon reacts with the surface of a target to generate polarity.
A polarity treatment apparatus 90 shown in FIG. 10 may form the second region 224 on at least a portion of the outer surface 220 of the door frame 200 through the plasma treatment method. When the second region 224 is formed using the plasma treatment method, there is an advantage in that damage to the outer surface 220 of the door frame 200 may be minimized.
Further, FIG. 11 illustrates a change in a particle composition in the second region 224 through the treatment process of the second region 224. FIG. 11(a) conceptually illustrates the particle composition of the second region 224 before the treatment process, and FIG. 11(b) conceptually illustrates the particle composition of the second region 224 after the treatment process.
In other words, it may be understood that FIG. 11(a) illustrates the particle composition of the first region 222 andFIG. 11(b) illustrates the particle composition of the second region 224.
In one embodiment of the present disclosure, the treatment process of the second region 224 is a process of generating or increasing the polarity of the second region 224, and the plasma treatment method, or the like may be utilized.
When the polarity treatment process is performed, a large amount of energy may be released directly or adjacent to the second region 224. The door frame 200 formed of a material, such as plastic, may include moisture particles P2 and/or oil particles P3 in addition to basic particles P1 that constitute the door frame 200.
The moisture particles P2 and the oil particles P3 may act as factors that interfere with the bonding between the adhesive 150 and the outer surface 220 of the door frame 200. For example, the more the moisture particles P2 and the oil particles P3 are included the second region 224 to which the adhesive 150 is provided in the door frame 200, the higher the possibility that the adhesive 150 will be separated.
However, the large amount of energy provided in the above treatment process may directly or indirectly contribute to discharging the moisture particles P2 and the oil particles P3 existing in the second region 224 to the outside of the second region 224.
In addition, active particles P4 having polarity may be directly or indirectly provided to the second region 224 by the large amount of energy. Since the active particles P4 exist in the second region 224 together with the basic particles P1, the second region 224 may have polarity or the polarity of the second region 224 may be increased.
Further, FIG. 12 illustrates a change in ionized molecules in the second region 224 through the treatment process of the second region 224. FIG. 12(a) conceptually illustrates the molecular composition of the second region 224 before the treatment process or the first region 222, and FIG. 12(b) conceptually illustrates the molecular composition of the second region 224 after the treatment process.
FIGS. 12(a) and 12(b) illustrate carbon as the basic particles P1 of the outer surface 220 of the door frame 200. In the case of the plasma treatment method, air may be decomposed by the plasma phenomenon to generate ionized gas, and the ionized gas may combine with the basic particles P1 of the second region 224 to form ionized molecules. In FIG. 12(b), the ionized molecules are expressed as OH, O, and COOH, but the ionized molecules are not limited thereto and the ionized molecule may correspond to the above-described active particles P4.
That is, ionized oxygen materials caused by ionization of air may contact the surface of the door frame 200, i.e., the outer surface 220, and the ionized oxygen materials may react and combine with the basic particles P1 of the door frame 200, thereby imparting polarity to the second region 224.
The second region 224 to which polarity is imparted may have an increased electronegativity difference with the adhesive 150. That is, the electronegativity difference between the second region 224 and the adhesive 150 may be greater than an electronegativity difference between the first region 222 and the adhesive 150.
This increased electronegativity difference contributes to an increase in chemical bonding strength, and therefore, one embodiment of the present disclosure has the second region 224 with increased polarity, and may thus effectively strengthen the bonding strength between the second region 224 and the adhesive 150, and may effectively suppress separation of the door window 300.
For example, when the door window 300 is coupled to the door frame by providing the adhesive 150 to the first region 222 having a low polarity or corresponding to a non-polar state, a stable bonding strength between the outer surface 220 of the door frame 200 and the adhesive 150 is not secured, and the application and uniformity of the adhesive 150 may be deteriorated.
Furthermore, when the door window 300 is formed of a glass material to secure light transmittance and thus has a relatively large load, separation between the door window 300 and the door frame 200 may be intensified by the weight of the door window 300.
Accordingly, one embodiment of the present disclosure couples the door window 300 to the outer surface 220 of the door frame 200 using the adhesive 150, forms the first region 222 and the second region 224 with increased polarity on the outer surface 220 of the door frame 200, and provides the adhesive 150 to the second region 224, thereby being capable of effectively increasing the bonding strength of the door frame 200 with the adhesive 150 without physically changing the door frame 200, and effectively increasing the fixing strength of the door window 300.
Further, FIG. 13 illustrates a change in an XPS analysis graph through the treatment process of the second region 224. FIG. 13(a) illustrates the XPS analysis graph of the second region 224 before the treatment process or the first region 222, and FIG. 13(b) illustrates the XPS analysis graph of the second region 224 after the treatment process.
For reference, an XPS analysis graph shows the results of analyzing the elements included in a target using X-ray. The horizontal axis of the graph corresponds to the binding energy of each element and may be understood as being used to distinguish the type of the element, and the vertical axis of the graph represents the reaction intensity of each element and may be understood as being used to determine the amount of each element.
Referring to FIGs. 13(a) and 13(b), it may be confirmed that the amount of carbon E2 decreases after the polarity treatment process compared to before the polarity treatment process. That is, the second region 224 may include a less amount of carbon E2 than the first region 222.
This may be understood as a result of removal of the oil particles P3 due to supply of the above-described large amount of energy. That is, through the polarity treatment process, the second region 224 may have a reduced factor that hinders adhesion of the adhesive 150.
In addition, it may be confirmed that the amount of oxygen E1 increases. That is, the second region 224 may include a greater amount of oxygen E1 than the first region 222. This may be understood as a result of the above-described generation of the active particles P4, and therefore, it may be confirmed that the polarity of the second region 224 increases through the increase in ionized molecules corresponding to the active particles P4.
Further, FIG. 14 illustrates a change in a water contact angle through the treatment process of the second region 224. FIG. 14(a) conceptually illustrates the water contact angle of the second region 224 before the treatment process or the first region 222, and FIG. 14(b) conceptually illustrates the water contact angle of the second region 224 after the treatment process.
In one embodiment of the present disclosure, a water contact angle D2 of the second region 224 may be smaller than a water contact angle D1 of the first region 222. That is, the second region 224 may have a smaller water contact angle than that of the first region 222.
As described above, the second region 224 has a greater polarity than the first region 222, and accordingly, may have an increased chemical bonding strength with water molecules and an increased contact area with water, and as a result, a phenomenon in which the water contact angle decreases may occur.
This change may also be understood as a change in a contact area between the adhesive 150 and the second region 224. That is, the second region 224 on which the polarity treatment has been performed may have an increased chemical bonding strength with the adhesive 150, and an increased contact area.
The second region 224 having polarity may be formed to extend along the perimeter of the outer surface 220 so as to surround the first region 222. The above-described polarity treatment apparatus 90 may process the perimeter of the outer surface 220 of the door frame 200 so that the second region 224 may be formed on the perimeter of the door frame 200.
In addition, the second region 224 may correspond to at least a part of the above-described flat surface 226. That is, the flat surface 226 of the door frame 200 may form a flat surface and include the second region 224.
In addition, the second region 224 may be formed only on a part of the flat surface 226, not on the entirety of the flat surface 226. The second region 224 may have a ring shape extending in the circumferential direction of the door frame 200, and the ring shape may be formed to include a plurality of divided sections.
Furthermore, a part of the flat portion 226 may correspond to the second region 224, and the remainder may correspond to the first region 222. That is, the entirety of the flat portion 226 may be the second region 224, or the first region 222 may be formed in a part of the flat portion 226. Further, the entirety of the curved portion 228 may be the first region 222, or the second region 224 may be formed in a part of the curved portion 228, if necessary.
As described above, the flat portion 226 may form a flat surface, stably support the door window 300, and be coupled to the door window 300 through the adhesive 150. In addition, the second region 224 may be formed on the flat portion 226 and be coupled to the inner surface of the door window 300 through the adhesive 150.
Further, the first region 222 on which the polarity treatment is not performed and which is non-polar or has a relatively low polarity may be included in the above-described curved portion 228. The curved portion 228 forms a curved surface on the outer surface 220 of the door frame 200, and does not form a bonding relationship with the door window 300, and accordingly, the second region 224 does not need to be formed on the curved portion 228.
Therefore, the first region 222 of the present disclosure may be located on the curved portion 228, and the flat portion 226 may be provided to extend along the perimeter of the outer surface 220 to surround the curved portion 228.
The door opening 105 may be provided in the outer surface 220 of the door frame 200 and may be opened toward the inlet 15, and the curved portion 228 may be formed to surround the door opening 105 and be curved toward the inside of the cabinet 10 as the curved portion 228 approaches the door opening 105.
Further, as described above, in one embodiment of the present disclosure, the adhesive groove 230 to which the adhesive 150 is provided may be formed on the outer surface 220 of the door frame 200, and at least a part of the adhesive groove 230 may include the second region 224.
The adhesive 150 may be provided to the adhesive groove 230, and accordingly, one embodiment of the present disclosure may strengthen the bonding strength of the adhesive 150 by forming the second region 224 having polarity in the adhesive groove 230.
In addition, a surface of the adhesive groove 230 in which the strongest bonding force with the adhesive 150 acts may correspond to a bottom surface 231 of the adhesive groove 230, and accordingly, the second region 224 may be formed to include at least a part of the bottom surface 231 of the adhesive groove 230.
In addition, the second region 224 may extend along the perimeter of the outer surface 220 so as to correspond to the disposition of the adhesive groove 230, and the above-described non-transmitting portion 320 of the door window 300 may be provided to extend along the perimeter of the door window 300 to shield the second region 224 from the outside.
FIG. 15 is a flowchart showing a method of manufacturing a clothing processing apparatus according to one embodiment of the present disclosure. Hereinafter, the method of manufacturing the clothing processing apparatus according to one embodiment of the present disclosure will be described with reference to FIG. 15, and redundant descriptions of the clothing processing apparatus 1 will be omitted as much as possible.
The method of manufacturing the clothing processing apparatus according to one embodiment of the present disclosure includes a frame forming step S100. In the frame forming step S100, a door frame 200 including an outer surface 220 facing the outside of a cabinet 10 is formed.
In the frame forming step S100, the outer surface 220 of the door frame 200 may be formed to include an adhesive groove 230 configured to receive an adhesive 150. It is not necessary to form an inner frame 260 in the frame forming step S100.
One embodiment of the present disclosure may include a washing step S200. In the washing step S200, a degreasing process of removing oil from the outer surface 220 of the door frame 200 may be performed before a polarity treatment step S300.
Accordingly, during an injection molding process of the door frame 200, oil and moisture present on the door frame 200 may be primarily washed to reduce a decrease in the adhesive strength of the adhesive 150. In the washing step S200, a confirmation process of determining a degree of degreasing after the degreasing process may be performed.
One embodiment of the present disclosure may include the polarity treatment step S300. In the polarity treatment step S300, a polarity treatment process may be performed so that a second region 224 excluding a first region 222 among the outer surface 220 of the door frame 200 has a greater polarity than the first region 222.
The polarity treatment process may be performed by a plasma treatment method, or the like. In the polarity treatment step S300, the second region 224 may be formed to extend along the perimeter of the door frame 200 to surround the first region 222.
In the polarity treatment step S300, the second region 224 may be formed in at least a portion of the adhesive groove 230. After the polarity treatment process, a confirmation process of determining the polarity of the second region 224 may be performed.
One embodiment of the present disclosure may include a door window coupling step S400. In the door window coupling step S400, a door window 300 may be coupled to the second region 224 using the adhesive 150.
In the door window bonding step S400, the adhesive 150 may be provided to the adhesive groove 230 of the outer surface 220 of the door frame 200, and a pressing process between the door window 300 and the door frame 200 may be performed. In addition, a curing process of the adhesive 150 may be performed, and a bonding force confirmation process between the door window 300 and the door frame 200 may be performed.
Although the present disclosure has been illustrated and described with respect to specific embodiments, it will be apparent to those skilled in the art that the present disclosure may be variously improved and changed without departing from the technical idea of the present disclosure provided by the following claims.

Claims

A clothing processing apparatus comprising:
a cabinet comprising an inlet configured to allow clothes to be put into the cabinet therethrough; and

a door coupled to the cabinet to open and close the inlet,

wherein the door comprises:
a door frame rotatably coupled to the cabinet and comprising an outer surface configured to face an outside of the cabinet; and

a door window coupled to the outer surface of the door frame,

wherein the outer surface of the door frame comprises a first region, and a second region having a greater polarity than the first region and configured such that an adhesive configured to couple the door window to the outer surface is provided to the second region.
The clothing processing apparatus according to claim 1, wherein the second region has the greater polarity than the first region through a polarity treatment process.
The clothing processing apparatus according to claim 1, wherein an electronegativity difference between the second region and the adhesive is greater than an electronegativity difference between the first region and the adhesive.
The clothing processing apparatus according to claim 1, wherein the second region extends along a perimeter of the outer surface to surround the first region.
The clothing processing apparatus according to claim 1, wherein the outer surface comprises a flat portion configured to form a flat surface and comprising the second region.
The clothing processing apparatus according to claim 5, wherein the outer surface comprises a curved portion configured to form a curved surface and comprising the first region.
The clothing processing apparatus according to claim 6, wherein the flat portion extends along a perimeter of the outer surface to surround the curved portion.
The clothing processing apparatus according to claim 6, wherein:
the door frame comprises a door opening provided in the outer surface to be opened toward the inlet; and

the curved portion surrounds the door opening and is curved toward an inside of the cabinet as the curved portion approaches the door opening.
The clothing processing apparatus according to claim 1, wherein:
an adhesive groove configured such that the adhesive is provided thereto is formed in the outer surface; and

at least a portion of the adhesive groove comprises the second region.
The clothing processing apparatus according to claim 9, wherein:
at least a portion of a bottom surface of the adhesive groove is processed to have polarity to form the second region.
The clothing processing apparatus according to claim 1, wherein:
the door window comprises a light-transmitting portion configured to allow light transmission and a non-transmitting portion configured to block light transmission; and

the adhesive is provided to overlap the non-transmitting portion.
The clothing processing apparatus according to claim 11, wherein:
the second region extends along a perimeter of the outer surface; and

the non-transmitting portion extends along a perimeter of the door window to shield the second region from outside.
The clothing processing apparatus according to claim 11, wherein:
the outer surface comprises a door opening configured to be opened toward an inside of the cabinet; and

the non-transmitting portion is disposed to surround the door opening.
The clothing processing apparatus according to claim 13, wherein the outer surface comprises:
a flat portion configured to form a flat surface and extend along a perimeter of the outer surface, and provided such that at least a part of the flat portion overlaps the non-transmitting portion; and

a curved portion located between the flat portion and the door opening to surround the door opening, and provided such that at least a part of the curved portion overlaps the light-transmitting portion.
The clothing processing apparatus according to claim 1, wherein the second region is processed to have polarity through a plasma treatment method.
The clothing processing apparatus according to claim 1, wherein the second region is processed to have polarity through a corona treatment method.
The clothing processing apparatus according to claim 1, wherein the second region comprises a greater amount of oxygen than the first region.
The clothing processing apparatus according to claim 1, wherein the second region comprises a less amount of carbon than the first region.
The clothing processing apparatus according to claim 1, wherein the second region has a smaller water contact angle than the first region.
The clothing processing apparatus according to claim 1, wherein the door window comprises a glass material, and the outer surface of the door frame comprises a plastic material.
A clothing processing apparatus comprising:
a cabinet comprising an inlet configured to allow clothes to be put into the cabinet therethrough; and

a door coupled to the cabinet to open and close the inlet,

wherein the door comprises:
a door frame rotatably coupled to the cabinet and comprising an outer surface configured to face an outside of the cabinet; and

a door window coupled to the outer surface of the door frame,

wherein the outer surface of the door frame comprises a polarity region formed by a polarity treatment so that an adhesive configured to couple the door window to the outer surface is provided thereto.
A method of manufacturing a clothing processing apparatus comprising:
a frame forming step of forming a door frame comprising an outer surface configured to face an outside of a cabinet;

a polarity treatment step of performing a polarity treatment process so that a second region excluding a first region among the outer surface of the door frame has a greater polarity than the first region; and

a door window coupling step of coupling a door window to the second region using an adhesive.
The method according to claim 22, further comprising:
a washing step of performing a degreasing process configured to remove oil from the outer surface of the door frame, before the polarity treatment step.
The method according to claim 22, wherein, in the polarity treatment step, the second region is formed to extend along a perimeter of the door frame to surround the first region.
The method according to claim 22, wherein, in the frame forming step, the outer surface of the door frame is formed to comprise an adhesive groove configured such that the adhesive is provided thereto.
The method according to claim 25, wherein, in the polarity treatment step, the second region is formed in at least a portion of the adhesive groove.