Auxiliary device for washing face and method for manufacturing the same

Abstract

According to an embodiment of the present invention, a facial cleansing aid is provided, comprising: a sheet-type porous absorbent band wearable on a user's wrist or arm; and an elastic band accommodated within the sheet-type porous absorbent band and providing elasticity to securely fix the user's wrist or arm, wherein the sheet-type porous absorbent band is formed of a PVA material.

Description

Technology Field

[0001] The present invention relates to an auxiliary device for facial cleansing and a method for manufacturing the same, and more specifically, to an auxiliary device for facial cleansing based on a porous absorbent band designed to absorb liquid flowing continuously along the arm during facial cleansing and to allow for hygienic repeated use after use, and a method for manufacturing the same. Background Technology

[0002] Generally, when washing one's face, liquids such as water, oil cleansers, or foam tend to run down the user's hands and arms. This phenomenon is not merely a splashing of liquid, but forms a continuous stream along the hands and arms, which intensifies depending on the user's height, posture, and washing method. As a result, problems such as clothing sleeves, elbows, and the area around the sink becoming wet or contaminated occur frequently.

[0003] To address these issues, various facial cleansing aids have been developed in the past. Representative examples include absorbent bands made of towels or microfiber materials, and waterproof bands made of waterproof materials such as silicone.

[0004] First, while absorbent bandages have the advantage of being able to absorb liquid, the absorbed liquid remains stored within the absorbent material, making it difficult to remove. Additionally, the long drying time raises concerns about odors or bacterial growth, and there are issues with the difficulty of maintaining hygiene during repeated use.

[0005] On the other hand, waterproof bands are designed to simply block liquids physically without absorbing them. As a result, water splashes or pooled water may backflow during use, and there are limitations in terms of comfort and size adaptability.

[0006] In other words, conventional technology has not been able to simultaneously satisfy 'absorption + storage + hygienic reuse'. In addition, sheet-type porous absorbent bands, particularly PVA (Polyvinyl Alcohol) materials, have been recognized in the industry as unsuitable for sewing processes due to their characteristics of hardening when dry and increasing friction and tackiness when wet. The problem to be solved

[0007] The purpose of the present invention is to solve the problems of the aforementioned prior art.

[0008] The present invention aims to provide an auxiliary device for washing the face that can effectively absorb liquid flowing continuously along the hands and arms during washing and structurally block movement to clothing and the body.

[0009] In addition, the present invention aims to provide an auxiliary device for facial cleansing that can restore function immediately after use by washing and compressing, and can be hygienically reused through rapid drying and tactile drying confirmation.

[0010] Furthermore, the present invention aims to establish a technical concept applicable to wearable products while maintaining high absorption performance even in thin and light structures by deriving a critical moisture content range in which sewing is stably possible for a sheet-type porous absorbent band (PVA) that was previously recognized as impossible to sew, and by providing a manufacturing method that performs sewing while maintaining said conditions. means of solving the problem

[0011] According to one embodiment of the present invention for achieving the above-mentioned purpose, a facial cleansing aid is provided, comprising: a sheet-type porous absorbent band wearable on a user's wrist or arm; and an elastic band accommodated within the sheet-type porous absorbent band and providing elasticity to securely fix the user's wrist or arm, wherein the sheet-type porous absorbent band is formed of a PVA material.

[0012] The above sheet-type porous absorbent band maintains a hardened state upon drying, and the sewing may be performed when the moisture content is in the range of about 40 to 46% L.

[0013] According to another embodiment of the present invention, a method for manufacturing an auxiliary device for facial cleansing is provided, comprising the steps of: preparing a PVA sheet for manufacturing a sheet-type porous absorbent band; absorbing water into the PVA sheet and drying it so that the moisture content is in the range of about 40 to 46% L; and placing an elastic band on the PVA sheet and then sewing the PVA sheet so that it becomes a donut shape that completely wraps the elastic band. Effects of the invention

[0014] According to the facial cleansing auxiliary device and the method for manufacturing the same according to the present invention, by introducing and storing a continuous liquid flow generated during facial cleansing into an absorbent body, it is possible to structurally block movement to clothing and the body.

[0015] In addition, according to the present invention, the function can be restored immediately after use by washing and compressing, and the effect of being able to be used hygienically repeatedly through rapid drying and tactile drying confirmation is present.

[0016] In addition, according to the present invention, a critical moisture content range is derived that allows for stable sewing of a sheet-type porous absorbent band (PVA) that was previously considered impossible to sew, and by performing sewing while maintaining the said conditions, there is an effect of being applicable to wearable products while maintaining high absorption performance even in thin and light structures.

[0017] In addition, according to the present invention, by utilizing the characteristic of increased rigidity during drying, there is an effect in that the user can tactilely perceive whether drying is complete.

[0018] In addition, according to the present invention, as a wearable structure, it has the effect of being able to be used stably even with changes in the user's posture or physical condition. Brief explanation of the drawing

[0019] FIG. 1 is a cross-sectional structural diagram showing the structure of an auxiliary device for washing the face according to the present invention. Figure 2 is a diagram showing the phenomenon of liquid flowing along the arm during face washing and the operating principle of the present invention. Figure 3 is a comparative diagram showing the limitations of the prior art. Figure 4 is a diagram showing the test results using a Moisture Analyzer. FIG. 5 is a drawing illustrating a method for manufacturing an auxiliary device for facial cleansing according to one embodiment of the present invention. Specific details for implementing the invention

[0020] The following detailed description of the invention refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that various embodiments of the invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. It should also be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not intended to be limiting, and the scope of the invention is limited only by the appended claims, including all equivalents to those claimed therein, provided appropriately described. Similar reference numerals in the drawings refer to the same or similar functions across various aspects.

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings in order to enable a person skilled in the art to easily practice the present invention.

[0022] FIG. 1 is a cross-sectional structural diagram showing the structure of an auxiliary device for washing the face according to the present invention.

[0023] As illustrated in FIG. 1, the facial cleansing aid according to the present invention may be configured to include a sheet-type porous absorbent band (10) exposed to the outside and an elastic band contained within the sheet-type porous absorbent band (10).

[0024] The above elastic band forms a closed curve and is formed of a material such as rubber that has elasticity.

[0025] The sheet-type porous absorbent band (10) is formed in a shape that wraps around the elastic band, and due to the elastic force of the elastic band, the sheet-type porous absorbent band (10) may exist in a wrinkled shape.

[0026] The above sheet-type porous absorbent band (10) is an external structure formed to be wearable on a user's wrist or arm, and can accommodate various wrist or arm circumferences.

[0027] The elastic band provides elasticity so that the sheet-type porous absorbent band (10) can adhere to the wearer's wrist or arm when worn.

[0028] The sheet-type porous absorbent band (10) absorbs liquid (water, oil, foam, etc.) flowing along the arm during face washing and stores it in its internal porous structure, thereby blocking the liquid from moving to clothing or other body parts.

[0029] As described above, the sheet-type porous absorbent band (10) is formed in a donut shape that completely wraps around the outside of the elastic band. Specifically, it is manufactured by placing the elastic band on the sheet-type porous absorbent band (10) and then sewing both sides of the sheet-type porous absorbent band (10) together.

[0030] Accordingly, in the donut-shaped sheet-type porous absorbent band (10) with a hole in the center, a seam may be formed at the outermost edge. As described later, this seam portion can serve as a wall to block the flow of water along the length of the arm during the face washing process.

[0031] The sheet-type porous absorbent band (10) is formed from PVA material, and sewing of this material was recognized as impossible in the prior art. The present invention enables sewing by adjusting the moisture content of the sheet-type porous absorbent band (10) to a range of approximately 43.40 ± 2.26%L. The moisture content may be in the range of approximately 40 to 60%L, and according to a preferred embodiment, the range of 43.40 ± 2.26%L described above is preferred. In this specification, the moisture content (%L) refers to the mass ratio lost mainly due to moisture during heat drying based on Loss on Drying using a Moisture Analyzer.

[0032] A facial cleansing aid according to an embodiment of the present invention is composed of a scrunchie structure in which an elastic band is housed internally to cover various wrist sizes and minimize the gap between the wrist and the band. When manufactured in standardized sizes, such as silicone wristbands, the degree of tightness varies depending on the wearer's wrist circumference, and water leakage occurs through the gap; however, the scrunchie structure is designed to solve this problem. The method for manufacturing such a scrunchie is as follows.

[0033] First, prepare a piece of fabric (approx. 60cm x 10cm) and an elastic band (approx. 16–20cm). Fold the fabric in half with the right side facing inward, align the ends, and secure them with clips. Next, sew one end leaving a 1cm seam allowance to create an opening. Then, using tweezers or a stick, turn the fabric inside out through the opening so that the right side is visible. Insert the elastic band through the opening into the fabric using an elastic clip (or safety pin), and tie a knot at both ends to secure it. Finally, close the opening with a blind stitch (hand sewing) or topstitching (sewing from the outside) to complete the process.

[0034] In the above process, the 'process of turning the outer layer inside out through the opening' is essential, but this process is impossible with high-friction fabrics. Sheet-type porous absorbent bands, particularly PVA materials, have been recognized as difficult or impossible to perform the aforementioned turning process due to the characteristics of increased friction and adhesiveness in a wet state. As a result, wearable facial cleansing aids with a scrunch structure using sheet-type PVA have been avoided in actual manufacturing processes.

[0035] The applicant has confirmed that friction is mitigated under a specific moisture content state, thereby enabling this turning process, and has invented that it is possible to produce a scrunchie shape using PVA fabric within the moisture content range described above.

[0036] Figure 2 is a diagram showing the phenomenon of liquid flowing along the arm during face washing and the operating principle of the present invention.

[0037] As shown in Fig. 2, the liquid generated during face washing does not simply splash, but rather occurs in the form of a continuous stream of liquid flowing along the user's hands and arms. This flow is intensified by the user's height, posture, and face washing method (such as multi-stage washing), and causes contamination of the sleeves of clothing, elbows, and the area around the sink.

[0038] When the facial cleansing aid according to the present invention is worn, liquid flowing along the arm comes into contact with the sheet-type porous absorbent band (10), and the porous structure of the sheet-type porous absorbent band (10) rapidly absorbs the liquid and stores it inside. At this time, the sheet-type porous absorbent band (10) maintains a state where it is moist but liquid does not flow, thus blocking the movement of liquid to clothing or other body parts.

[0039] In addition, most common scrunch-type wrist washing bands have ruffles formed along the axial direction (lengthwise direction) of the arm, and often have a shape similar to an exercise wristband. In this case, since the direction of the ruffles is similar to the direction of the water flowing along the arm during washing, the structure is such that water is physically prone to overflowing along the gaps between the ruffles.

[0040] In contrast, the facial cleansing aid according to one embodiment of the present invention, despite being made of a soft material, has additional stitching applied to the outer edge so that the ruffles can be maintained like a wall in the longitudinal and perpendicular directions relative to the arm, so that the ruffles do not easily lie down even in a wet state and can form a structural blocking surface against the flow of liquid along the arm.

[0041] Figure 3 is a comparative diagram showing the limitations of the prior art.

[0042] Figure 3(a) illustrates a conventional microfiber band, which can absorb liquid, but the liquid stored after absorption is not easily removed, and the long drying time causes odor and bacteria problems.

[0043] In addition, Figure 3(b) illustrates a conventional silicone band, but since the silicone band does not absorb liquid and only physically blocks it, problems arise such as water splashing or standing water flowing back during use.

[0044] In contrast, the present invention can simultaneously satisfy 'absorption + storage + hygienic reuse' by using a sheet-type porous absorbent band (10).

[0045] According to conventional technology and industry perception, sheet-type PVA has been recognized as a material unsuitable for sewing processes because it hardens when dry and its friction and tackiness increase when wet. Dried sheet-type PVA hardens and becomes rigid, and sewing was impossible in the wet state due to excessive tackiness.

[0046] However, the applicant confirmed that when the moisture content of the sheet-type porous absorbent band (10) is within a specific range, the flexibility and friction characteristics are balanced, making the sewing process stable.

[0047] Specifically, Fig. 4 is a diagram showing the test results using a Moisture Analyzer.

[0048] The applicant performed a moisture analysis of the sheet-type porous absorbent band (10) while it was in a state where it could be sewn, and as a result, as shown in FIG. 4, the moisture of the sheet-type porous absorbent band (10) was in the range of about 43.40 ± 2.26%L.

[0049] In other words, the sewing process was performed stably when the moisture level was within this range.

[0050] If the range is exceeded, a low moisture content results in breakage or needle defects due to hardening, while a high moisture content results in sewing defects due to excessive tackiness. In other words, the present invention provides a manufacturing method that derives a critical moisture content range where sewing becomes possible and performs sewing while maintaining that condition.

[0051] FIG. 5 is a drawing illustrating a method for manufacturing an auxiliary device for facial cleansing according to one embodiment of the present invention.

[0052] Referring to FIG. 5, first, a PVA sheet is prepared for manufacturing a sheet-type porous absorbent band (10) (S10). Next, the moisture content is adjusted to a range of 40 to 46%L, preferably about 43.40 ± 2.26%L, by soaking the PVA sheet in water (i.e., absorbing water into the PVA sheet) and then proceeding with a drying process to remove moisture (S20). Finally, an elastic band is placed on the PVA sheet adjusted to the moisture content range, and the PVA sheet is sewn to completely wrap around the elastic band. The ends of the sewn product are sewn together to complete the sheet-type porous absorbent band (10) (S30).

[0053] The facial cleansing aid according to the present invention is not a product that operates in a single state, but a system designed on the premise of switching between states before, during, and after use.

[0054] In storage, the sheet-type porous absorbent band (10) remains in a dried and hardened state, allowing for hygienic storage, and the user can tactilely perceive the dry state. In the preparation stage for use, the absorbent function is activated by wetting the sheet-type porous absorbent band (10) with water and then compressing it to adjust the moisture level to an appropriate state. During use, the sheet-type porous absorbent band (10) absorbs and stores liquid while maintaining a state that is moist but does not flow. After use, it can be reused through washing and re-drying.

[0055] In particular, the characteristic of increased stiffness during drying acts as a functional element that allows the user to tactilely perceive whether drying is complete.

[0056] The facial cleansing aid according to the present invention can remove approximately 70% more water than a standard towel material, has an absorption capacity of about 1.5 times, and a wrung-out capacity of 2 times. Through this, water does not leak during use, and it can be reused with thick absorbency.

[0057] Sheet-type PVA has traditionally been used for purposes such as wet towels or sports towels, and for these applications, it has been advised that the normal usage method is to maintain a wet state at all times during use or storage. In this case, the state in which the sheet-type PVA dries out and hardens has been recognized as an undesirable state for use, and if it dries out by mistake, it has been advised to re-wet it with water before use.

[0058] However, the present invention reinterprets the characteristic of increased stiffness upon drying of a sheet-type porous absorbent band not as a simple negative characteristic, but as a functional signal that allows the user to tactilely perceive whether drying is complete.

[0059] Accordingly, in the present invention, the sheet-type porous absorbent band is intentionally stored in a dry state, and the user can intuitively check the hygienic storage condition through whether it has hardened.

[0060] With the above configuration, the user can tactilely check whether the sheet-type porous absorbent band is dry without a separate indicator or sensor, enabling hygienic repeated use.

[0061] According to the present invention, by introducing and storing the continuous liquid flow generated during facial cleansing into the absorbent material, the movement to clothing and the body can be structurally blocked. Furthermore, the function can be restored immediately after use simply by washing and compressing, and it can be hygienically reused through rapid drying and tactile dryness verification. Moreover, it maintains high absorption performance even in a thin and lightweight structure, and as a wearable structure, it can be used stably even with changes in the user's posture and physical condition.

[0062] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0063] The scope of the present invention is defined by the claims set forth below, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention.

Claims

Claim 1 An auxiliary device for facial cleansing, comprising: a sheet-type porous absorbent band wearable on a user's wrist or arm; and an elastic band accommodated within the sheet-type porous absorbent band and providing elasticity to securely fix it to the user's wrist or arm, wherein the sheet-type porous absorbent band is formed of PVA material, and the sheet-type porous absorbent band maintains a hardened state upon drying and is sewn to wrap around the elastic band when the moisture content is in the range of 40 to 46% L. Claim 2 delete Claim 3 A method for manufacturing an auxiliary device for facial cleansing, comprising: a step of preparing a PVA sheet for manufacturing a sheet-type porous absorbent band; a step of absorbing water into the PVA sheet and drying it so that the moisture content is in the range of 40 to 46% L; a step of placing an elastic band on the PVA sheet, then folding the PVA sheet in half so that the outer surface faces inward, and aligning both ends and securing them with a clip; a step of turning the elastic band over on the PVA sheet so that the outer surface is exposed to the outside; and a step of inserting the elastic band through one of the two ends of the PVA sheet and sewing it so that the PVA sheet completely wraps around the elastic band to form a donut shape.

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