clothing
Patent Information
- Application Number
- JP2021024568
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-02-18
- Publication Date
- 2025-03-05
- Estimated Expiration
- 2041-02-18
AI Technical Summary
【0035】 本発明によれば、脱衣時に、着用時とは別の開口を新たに形成することができ、その開口から、小さな身体の動きにより脱衣することができ、汚染部位に触れる可能性を低減した衣服を提供することができる。
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Abstract
Description
[Technical field]
[0001] The present invention relates to clothing. More specifically, the present invention relates to clothing that can form a new opening, separate from the opening when worn, when being removed, and that can be removed through the opening with small body movements. [Background technology]
[0002] Conventionally, disposable clothing that is discarded after use has been developed. For example, Patent Document 1 discloses clothing (protective clothing) for protecting the wearer from contaminants such as dust and viruses (Patent Document 1). According to Patent Document 1, after putting on the clothing, the wearer operates a fastener member to close the opening and closing part, and after use, operates the fastener member again to open the opening and closing part, and takes off the clothing. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2012-252021 A Summary of the Invention [Problem to be solved by the invention]
[0004] However, the garment described in Patent Document 1 is put on through an opening that is created by operating a fastener member, which is an opening and closing member. When taking off the garment after work, the fastener member is operated again to create a similar opening. Therefore, the garment described in Patent Document 1 requires time and effort to operate the fastener member, etc. In addition, the garment described in Patent Document 1 requires a lot of body movement when taking off the garment, and if the garment is contaminated, there is a risk that the contaminated part of the garment may come into contact with the body.
[0005] The present invention has been made in consideration of such conventional problems, and aims to provide clothing that can be doffed by forming a new opening, separate from the opening used when wearing the clothing, and that can be removed with small body movements through this opening, reducing the possibility of touching contaminated areas. [Means for solving the problem]
[0006] The present invention, which solves the above problems, mainly includes the following configurations.
[0007] (1) A garment having a first opening through which a wearer passes their body when wearing the garment, and a second opening, different from the first opening, through which the wearer removes their body when undressing, the second opening being closed by a closing member, and the second opening, which was closed, being opened by removing the closing member.
[0008] According to this configuration, a second opening is provided that is separate from the first opening through which the body passes when the garment is worn. The second opening is closed by a closing member, and is opened by removing the closing member. In this way, when the garment is taken off, a new opening (second opening) separate from the opening when the garment is worn can be formed. Furthermore, the garment can be taken off with small body movements through the formed opening (second opening), thereby reducing the possibility of touching a contaminated area.
[0009] (2) The garment described in (1), wherein the closure member has a grip portion exposed to the outside.
[0010] With this configuration, the wearer can use the grip to remove the closure member, which allows the garment to be removed with less bodily movement and reduces the chance of touching a contaminated area.
[0011] (3) The garment according to (2), wherein the longitudinal length of the gripping portion is 1 to 6 cm.
[0012] With this configuration, the wearer can easily grip the grip portion. Furthermore, the exposed grip portion is less likely to interfere with the wearer's movements while wearing the garment.
[0013] (4) The garment according to any one of (1) to (3), wherein the closure member is a sewing thread.
[0014] According to this configuration, the garment can be removed by pulling the sewing thread when taking off the garment, so that the garment can easily form the second opening.
[0015] (5) The garment according to any one of (1) to (4), wherein the second opening is closed by machine sewing, and the type of machine sewing is a lock stitch, a chain stitch, a zigzag stitch, a hand stitch, or a blind stitch.
[0016] According to this configuration, the garment can be removed by pulling the sewing thread when taking off the garment, so that the garment can easily form the second opening.
[0017] (6) The garment according to (5), wherein the type of sewing machine is a lock stitch or a zigzag stitch, the sewing thread has an upper thread and a lower thread, and the count of the lower thread is equal to or greater than the count of the upper thread.
[0018] With this configuration, the garment can be removed by pulling the upper thread when taking off the garment. Since the thread count of the lower garment is equal to or greater than that of the upper thread, friction caused by entanglement when pulling the upper thread is reduced. This makes it easier to remove the upper thread from the garment.
[0019] (7) The garment according to (5), wherein the type of sewing machine is a chain stitch, the sewing thread has at least an upper thread, and the loop length of the chain stitch is 1.5 mm to 4 mm.
[0020] With this configuration, less force is required to pull and remove the sewing thread when the garment is removed, so the garment can more easily form the second opening.
[0021] (8) The garment according to (6), wherein the tension (T1) of the upper thread is 1 to 100 gf.
[0022] According to this configuration, the garment can be removed by pulling the sewing thread when taking off the garment, so that the garment can easily form the second opening.
[0023] (9) The garment according to (4), wherein the strength (T2) of the sewing thread is greater than the tensile strength (T3) of the sewing thread for the garment.
[0024] With this configuration, the sewing thread is less likely to break when pulled when the garment is taken off, so the garment can easily form the second opening.
[0025] (10) The garment according to any one of (1) to (9), wherein the closure member is a monofilament, a multifilament or a spun yarn.
[0026] According to this configuration, the clothing can be removed by pulling the closing member when undressing, so that the clothing can easily form the second opening.
[0027] (11) The garment described in any one of (1) to (10), wherein the garment covers at least one of the upper body and the lower body and has at least a body portion, and the second opening is provided in at least the body portion.
[0028] With this configuration, the garment can have the second opening provided in the body portion open when the garment is taken off. The wearer can take the garment off with small body movements through the open second opening.
[0029] (12) The garment according to (11), wherein the second opening is provided at least along the length direction of the body portion.
[0030] According to this configuration, the second opening is formed along the length direction of the garment, and the wearer can remove the garment through the second opening with small body movements.
[0031] (13) The garment according to (11) or (12), further comprising a hood, and the second opening is provided from the hood to the length direction of the body portion.
[0032] According to this configuration, a large second opening can be formed from the hood to the body portion. Since a large opening can be provided in the garment by removing the closing member, the garment can be easily removed with smaller body movements.
[0033] (14) The garment according to any one of (1) to (13), wherein the garment is disposable.
[0034] According to this configuration, when the garment is taken off, a new opening (second opening) different from the opening when the garment is worn can be formed. Also, the garment can be taken off with a small body movement through the formed opening (second opening), which reduces the possibility of touching a contaminated area. Therefore, the garment is suitable as disposable clothing such as protective clothing. Effect of the Invention
[0035] According to the present invention, when removing the garment, a new opening separate from the opening used when wearing the garment can be formed, allowing the garment to be removed with small body movements, thereby providing garments that reduce the possibility of touching contaminated areas. [Brief description of the drawings]
[0036] [Figure 1] FIG. 1 is a schematic front view of a garment according to one embodiment (first embodiment) of the present invention. [Diagram 2] FIG. 2 is a schematic rear view of the garment according to one embodiment of the present invention (first embodiment). [Diagram 3] FIG. 3 is a schematic rear view of the garment of one embodiment (first embodiment) of the present invention with the opening and closing member removed to open the second opening. [Figure 4]FIG. 4 is a schematic cross-sectional view for explaining a sewing state when the type of sewing performed by the sewing machine is a lock stitch or a zigzag stitch. [Diagram 5] FIG. 5 is a schematic surface view for explaining a sewing state when the type of sewing by the sewing machine is lock stitch. [Figure 6] FIG. 6 is a schematic surface view for explaining a sewing state when the type of sewing performed by the sewing machine is a zigzag stitch. [Figure 7] FIG. 7 is a schematic cross-sectional view for explaining a sewing state when the type of sewing performed by the sewing machine is a chain stitch. [Figure 8] FIG. 8 is a schematic surface view for explaining a sewing state when the type of sewing performed by the sewing machine is a chain stitch. [Figure 9] FIG. 9 is a schematic rear view of the garment according to one embodiment of the present invention (second embodiment). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0037] <First embodiment> The garment of one embodiment of the present invention (first embodiment) is provided with a first opening through which the wearer passes when wearing the garment, and a second opening, different from the first opening, through which the wearer removes the garment. The second opening is closed by a closing member. When the closing member is removed, the closed second opening is opened. Each of these is explained below. In this embodiment, the "body portion" refers to the portion above the wearer's waist when the garment is worn by the wearer.
[0038] Here, in this embodiment, the body dimensions of the wearer are not particularly limited. In this embodiment, for clarity of explanation, a wearer with the following body dimensions is exemplified. That is, the wearer has a height of 171 cm, an upper arm length of 32 cm, a straight line distance between the neck and the acromion of 15 cm, a cervical fossa height of 140 cm, a sternal midpoint height of 128 cm, an anterior axillary width of 34 cm, a straight line distance between the inferior angles of the scapula of 20 cm, a thigh length of 44 cm, and a tibial upper border height of 43 cm.
[0039] The garment of this embodiment has a body portion and a pair of sleeve portions. The fabric constituting the body portion and the sleeve portions is not particularly limited. As an example, the fabric constituting the body portion and the sleeve portions is preferably made of a nonwoven fabric. In addition, the nonwoven fabric is more preferably in the following form. First, it is more preferable that the nonwoven fabric has a laminated structure of a first spunbonded nonwoven fabric and a meltblown nonwoven fabric. This makes it easy for the garment to exhibit moderate rigidity, breathability, dust resistance, comfort, etc. Next, it is also more preferable that the nonwoven fabric has a laminated structure of a spunbonded nonwoven fabric and a film. This makes it easy for the garment to exhibit extremely excellent barrier properties against blood and viruses, as well as excellent durability and excellent touch, etc. In addition, it is particularly preferable that the above film is a microporous film. This makes it easy for the garment to exhibit excellent comfort, etc., in addition to the above effects. As the microporous film, those described in International Publication No. WO 2015 / 083665, International Publication No. WO 2016 / 175250, International Publication No. WO 2017 / 119355, and International Publication No. WO 2017 / 169718 can be used.
[0040] ·The No. 1 meltblown nonwoven In order to provide excellent dust resistance and comfort for the garment, the bulk density of the first meltblown nonwoven fabric is preferably 0.05 g / cm 3 It is preferable that the content is 0.08 g / cm or more. 3 More preferably, it is 0.10 g / cm or more. 3 On the other hand, in order to make the clothing excellent in both dust resistance and comfort, the bulk density of the first melt-blown nonwoven fabric is preferably 0.18 g / cm or more. 3 It is preferable that the density is 0.16 g / cm or less. 3 More preferably, it is 0.15 g / cm or less. 3It is more preferable that the bulk density is equal to or less than 100%. In this embodiment, the bulk density can be measured using "GeoPyc1360" manufactured by Micromeritics Japan LLC. Specifically, a specific layer to be measured is cut into a size of 2 mm x 2 mm, 10 pieces of this are prepared as measurement samples, and the measurement beads are alternately stacked in a sample chamber with an inner diameter of 12.7 mm, the beads are filled up to a position 2 cm from the bottom of the sample chamber, and the measurement is performed. The bulk density obtained is rounded off to two decimal places to obtain the bulk density.
[0041] In order to provide clothing with excellent dust resistance and comfort, the thickness of the first melt-blown nonwoven fabric is preferably 70 μm or more, more preferably 80 μm or more, and even more preferably 90 μm or more. On the other hand, in order to provide clothing with excellent dust resistance and comfort, the thickness of the first melt-blown nonwoven fabric is preferably 200 μm or less, more preferably 160 μm or less, and even more preferably 140 μm or less.
[0042] The average single fiber diameter of the fibers constituting the first melt-blown nonwoven fabric is preferably 3 μm or more, more preferably 4 μm or more, and even more preferably 6 μm or more. The average single fiber diameter of the fibers constituting the first melt-blown nonwoven fabric is preferably 15 μm or less, more preferably 10 μm or less, and even more preferably 8 μm or less. When the average single fiber diameter is equal to or greater than the above-mentioned lower limit, the first melt-blown nonwoven fabric has better strength. In addition, the first melt-blown nonwoven fabric has a larger mesh size. As a result, the clothing has better breathability. In addition, when the average single fiber diameter is equal to or less than the above-mentioned upper limit, the first melt-blown nonwoven fabric has a smaller mesh size. As a result, the clothing has better dust resistance. In this embodiment, the average single fiber diameter can be determined by cutting out a cross section of the fabric, depositing a platinum-palladium alloy onto the cross section, measuring the single fiber diameter from an image taken with a scanning electron microscope (SEM) (S-4000 model, manufactured by Hitachi, Ltd.), and calculating a simple average value.
[0043] The material of the fibers constituting the first meltblown nonwoven fabric is not particularly limited. For example, the fiber material may be polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluorine-based resins, and mixtures thereof. Among these, the fiber material is preferably mainly composed of polyolefin-based resins from the viewpoint of fabric productivity and excellent texture. In addition, the polyolefin-based resin is preferably polypropylene from the viewpoint of easily improving dust resistance by electret processing. In this embodiment, the first meltblown nonwoven fabric is mainly composed of polyolefin-based resins means that the first meltblown nonwoven fabric contains 80% by mass or more of polyolefin-based resins relative to the entire first meltblown nonwoven fabric. The first meltblown nonwoven fabric preferably contains 90% by mass or more of polyolefin-based resins relative to the entire first meltblown nonwoven fabric, and more preferably consists of only polyolefin-based resins. When the melt-blown nonwoven fabric layer is made of only a polyolefin resin, the melt-blown nonwoven fabric may contain an additive such as a hindered amine, as long as the effect of this embodiment is not impaired.
[0044] The first melt-blown nonwoven fabric can be obtained by the melt-blowing method. The melt-blowing method is a method in which a thermoplastic polymer extruded from a spinneret is generally blown with hot air to be finely woven into a fiber, and the self-fusion properties of the fiber are utilized to form a web. The spinning conditions in the melt-blowing method include the polymer discharge amount, nozzle temperature, air pressure, etc. By optimizing these spinning conditions, a nonwoven fabric having a desired fiber diameter can be obtained. Specifically, when producing the fibers used in the first melt-blown nonwoven fabric, the resin discharge amount is reduced, the discharge speed is increased, and the degree of fiber stretching is increased, which makes it easier to finely woven the fibers.
[0045] The first melt-blown nonwoven fabric is preferably an electrically charged melt-blown nonwoven fabric, which allows the garment to have both high breathability and high dust resistance.
[0046] ·The No. 1 spunbond nonwoven fabric The material of the fibers constituting the first spunbonded nonwoven fabric is not particularly limited. For example, the fiber material may be polyolefin such as polyethylene or polypropylene, polyester such as polyethylene terephthalate or polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluorine-based resin, or a mixture thereof. Among these, the fiber material is preferably polyolefin from the viewpoint of fabric productivity and excellent texture.
[0047] A spunbond nonwoven fabric is a nonwoven fabric obtained by the spunbond method. The method for producing a spunbond nonwoven fabric is not particularly limited. For example, a spunbond nonwoven fabric is obtained by melting a polymer composition, extruding it from a spinneret and stretching it, and accumulating it on a conveyer belt or the like to form it into a web (spunbond method). The spunbond method allows for consistent processing from spinning the yarn to forming the nonwoven fabric, so productivity is excellent. In addition, the obtained spunbond nonwoven fabric is formed from long fibers, so it has high strength and excellent dimensional stability.
[0048] The average single fiber diameter of the fibers constituting the first spunbonded nonwoven fabric is preferably 18 μm or more, more preferably 19 μm or more, and even more preferably 20 μm or more. The average single fiber diameter of the fibers is preferably 30 μm or less, more preferably 28 μm or less, and even more preferably 26 μm or less. When the average single fiber diameter is equal to or greater than the above-mentioned lower limit, the first spunbonded nonwoven fabric can have high sheet strength and a large mesh size. Therefore, the breathability of the clothing is improved. When the average single fiber diameter is equal to or less than the above-mentioned upper limit, the first spunbonded nonwoven fabric has a small mesh size. Therefore, the dust resistance of the clothing is improved.
[0049] The first spunbond nonwoven fabric may be provided with a function within a range that does not impair the effect of the present embodiment. For example, the first spunbond nonwoven fabric may be provided with a function such as water repellency, oil repellency, antistatic, flame retardant, antibacterial, and antifungal.
[0050] Returning to the description of the first fabric as a whole, in the manufacturing process of the first fabric, the method of laminating the first spunbonded nonwoven fabric and the first meltblown nonwoven fabric is not particularly limited.
[0051] Here, as described above, the first fabric preferably includes a first meltblown nonwoven fabric having an electric charge. In such a preferred method for producing the first fabric, the first meltblown nonwoven fabric having an electric charge and the first spunbonded nonwoven fabric must be produced separately and independently. The first meltblown nonwoven fabric having an electric charge and the first spunbonded nonwoven fabric produced separately and independently must be bonded together using an adhesive (first adhesive) or by embossing.
[0052] The first meltblown nonwoven fabric and the first spunbonded nonwoven fabric are preferably bonded together by an adhesive (first adhesive). In this case, the content of the adhesive between the first meltblown nonwoven fabric and the first spunbonded nonwoven fabric is 0.5 g / m 2It is preferable that the content is 1.0 g / m or more. 2 More preferably, the adhesive content is 5.0 g / m or more. 2 Preferably, the content is 2.0 g / m or less. 2 It is more preferable that the adhesive content is equal to or less than the above-mentioned lower limit. By having the adhesive content be equal to or more than the above-mentioned lower limit, the adhesive strength between the first spunbonded nonwoven fabric and the first meltblown nonwoven fabric is superior. As a result, the layers of the garment are less likely to peel off when the wearer works while wearing the garment. On the other hand, by having the adhesive content be equal to or less than the above-mentioned upper limit, the first fabric has high breathability. As a result, the first fabric has low bending resistance and excellent flexibility.
[0053] The first fabric may further include a second spunbond nonwoven fabric. In this case, the first fabric is preferably a laminate of a first spunbond nonwoven fabric, a first meltblown nonwoven fabric, and a second spunbond nonwoven fabric in this order. When a garment is made using such a first fabric so that the second spunbond nonwoven fabric is disposed on the wearer side, the first spunbond nonwoven fabric is disposed on the outer side of the first meltblown nonwoven fabric. As a result, the first spunbond nonwoven fabric of the garment is easily protected from external stress by the first spunbond nonwoven fabric. Therefore, the garment is less likely to suffer from a decrease in performance such as dust resistance of the garment due to scratches on the first meltblown nonwoven fabric. Furthermore, such a garment has excellent abrasion resistance. The second spunbond nonwoven fabric may be the same as that described above as the first spunbond nonwoven fabric.
[0054] The surface roughness of the garment is not particularly limited. For example, the surface roughness is preferably 0.05 μm or more, more preferably 1 μm or more. The surface roughness is preferably 8 μm or less, more preferably 5 μm or less. When the surface roughness of the garment is within the above range, the opening and closing member (for example, the sewing thread described later) can be easily removed from the garment. The surface roughness is determined by calculating the average surface roughness in the warp and weft directions of the fabric based on the KES surface property test method using a Kato Tech surface property tester FB-4.
[0055] The coefficient of friction of the garment is not particularly limited. For example, the coefficient of friction is preferably 0.050, more preferably 0.100 or more. The coefficient of friction is preferably 0.900 or less, more preferably 0.500 or less. When the coefficient of friction of the garment is within the above range, the opening and closing member (for example, sewing thread described later) can be easily removed from the garment. The coefficient of friction can be obtained based on the JIS L 1095 (2010) friction coefficient test method by using the closing member of the garment of this embodiment as a sample and the fabric as a friction object, winding the sample with an initial tension of 1 cN and the friction object at a low speed while contacting each other perpendicularly using a thread friction coefficient tester, measuring the tension when the sample slides on the friction object at a constant speed, and calculating the dynamic friction coefficient according to the formula described in JIS L 1095 (2010) 9.11.
[0056] FIG. 1 is a schematic front view of a garment 1 according to the present embodiment. FIG. 2 is a schematic back view of the garment 1 according to the present embodiment. The garment 1 has a body portion 2 and a pair of sleeve portions 3. The garment 1 is provided with a first opening P1 through which the wearer passes when wearing the garment, and a second opening P2 (see FIG. 3) which is an opening through which the wearer removes the garment and is different from the first opening P1. The second opening P2 is closed by a closing member 4. An end of the opening / closing member 4 is provided with a grip portion 4a. In FIGS. 1 and 2, the first opening P1 is in a state of being closed by a fastener member or the like (not shown). After wearing the garment 1, the wearer closes the first opening P1 by operating the fastener member or the like.
[0057] The garment 1 of this embodiment may further include a hood 5. The hood 5 of the garment 1 is a part of the garment 1 that covers the wearer's head when the garment 1 is worn. The body part 2 and the hood 5 are preferably integrated. In a garment in which the body part and the hood are separate, a gap is likely to occur between the body part and the hood when the hood is worn with an upper garment having the body part. In this case, in order to prevent the gap, it is necessary to provide a large portion of the body part and the hood that overlap with each other when the garment is worn. Such an overlapping portion of the body part and the hood is likely to reduce breathability and flexibility. In contrast, in a garment 1 in which the body part 2 and the hood 5 are integrated, no gap occurs between the body part 2 and the hood 5, and there is no portion of the body part 2 and the hood 5 that overlaps with the other. Therefore, the garment 1 can be excellent in both comfort and workability when worn. The hood 5 can be made of the first fabric described above.
[0058] Moreover, the garment 1 of this embodiment may include a bottom garment 7 in addition to the top garment 6 including the body portion 2. The top garment 6 and the bottom garment 7 are preferably integrated. When the top garment and the bottom garment are separate from each other, a gap is likely to occur between the top garment and the bottom garment when the top garment and the bottom garment are worn. In this case, in order to prevent the gap, it is necessary to provide a large portion of the top garment and the bottom garment that overlaps with each other when the garment is worn. The portion where the top garment and the bottom garment overlap is likely to be reduced in breathability and flexibility. In contrast, when the top garment 6 and the bottom garment 7 are integrated into the garment 1, there is no gap between the top garment 6 and the bottom garment 7, and there is no portion where the top garment 6 and the bottom garment 7 overlap with each other. Therefore, the garment 1 can be excellent in both comfort and workability when worn. The bottom garment 7 can be made of the first fabric described above.
[0059] The garment 1 of this embodiment is provided with an opening (second opening) through which the wearer removes the body when undressing, in addition to an opening (first opening P1) through which the wearer passes when wearing the garment. FIG. 3 is a schematic rear view of the garment 1 of this embodiment with the opening / closing member 4 removed to open the second opening P2. The second opening P2 is closed by the closing member 4 (see FIG. 2), and removing the closing member 4 opens the closed second opening P2. In other words, the second opening P2 is closed when the garment 1 is worn or while the wearer is working, and is opened when the garment 1 is undressed.
[0060] The position of the second opening P2 is not particularly limited. As an example, in the garment 1 that covers at least one of the upper and lower body and has at least the body portion 2 as in the present embodiment, the position of the second opening P2 is preferably provided at least in the body portion 2. By providing the second opening P2 at such a position, the garment 1 can easily open the second opening P2 provided in the body portion 2 when taking off the garment. In addition, the wearer can take off the garment with a small body movement from the opened second opening P2. As a result, the wearer is less likely to touch a contaminated part of the garment 1 when taking off the garment.
[0061] In the garment 1 of this embodiment, the second opening P2 is provided at least along the length direction of the body part 2 as an example. Specifically, the second opening P2 is provided in the length direction in the rear body part of the garment 1 (see FIG. 2). This allows the wearer to take off the garment with a small body movement through the second opening P2. For example, the wearer can grasp the grip part 4a exposed near the hood 5 and pull out the sewing thread, which is an opening and closing member, in an upward direction. This movement is only the up and down movement of the arm, and the body movement can be kept small. In addition, when the wearer works, the front body part of the garment 1 is often more likely to become contaminated than the rear body part, in addition to the sleeve part 3. In this embodiment, since the second opening P2 is provided in the rear body part, the wearer can take off the garment by folding the contaminated parts of the sleeve part 3 and the front body part inward, making it less likely to touch the contaminated parts.
[0062] Moreover, in the garment of this embodiment, the second opening P2 is preferably provided from the hood 5 to the body 2 in the length direction. This allows the second opening P2 to be a large opening from the hood 5 to the body 2. By removing the closing member 4 such as sewing thread described below, the garment 1 can have a large opening with the hood 5 separated into left and right sides. This makes it easier to take off the garment 1 with smaller body movements.
[0063] In addition to the preferred embodiment described above, the second opening P2 may be provided in a position and direction along the inner thigh part of the bottom garment 7 in the crotch direction. For example, in the embodiment shown in Fig. 3, the second opening P2 is provided not only along the length direction of the body part 2 from the hood 5 but also along the inner thigh in the crotch direction, which is more preferable since it allows a larger opening separated to the left and right from the top garment 6 to the bottom garment 7 to be provided.
[0064] The closing member 4 is not particularly limited. For example, the closing member 4 is a sewing thread, a string, a coil, a tape, a rubber, or the like. Among these, the closing member 4 is preferably a sewing thread. This allows the garment 1 to be removed by pulling the sewing thread when the garment 1 is taken off. Therefore, the garment 1 can easily form the second opening P2. In this case, the sewing thread has one end (first end, grip portion 4a) that the wearer pulls, and the opposite end (second end). It is preferable that the second end is not fixed to the garment 1. This allows the sewing thread to be easily removed when the wearer pulls the grip portion 4a, which is the first end.
[0065] The closing member 4 preferably has a gripping portion 4a exposed to the outside. By providing such a gripping portion 4a, the wearer can remove the closing member 4 by using the gripping portion 4a. Specifically, when the closing member 4 is a sewing thread, the wearer can grip the gripping portion 4a, which is the end of the sewing thread, and can open the second opening P2 by pulling the gripping portion 4a. As a result, the garment 1 can be removed with smaller body movements, and the possibility of touching a contaminated site can be further reduced.
[0066] The length of the grip portion 4a is not particularly limited. For example, the length of the grip portion 4a is preferably 1 cm or more, more preferably 2 cm or more. The length of the grip portion 4a is preferably 6 cm or less, more preferably 5 cm or less. Since the length of the grip portion 4a is within the above range, the wearer can pinch the grip portion 4a with his / her fingertips, or, for example, form the grip portion 4a into a loop and insert his / her finger into the loop-shaped grip portion 4a to pull it. Even if the grip portion 4a is exposed from, for example, the peripheral portion of the hood 5, it is unlikely to obstruct the wearer's field of vision or obstruct the wearer's movements. An auxiliary tool such as a resin ring may be provided at the end of the grip portion 4a to make it easier for the wearer to grip it.
[0067] When the closing member 4 is a sewing thread, the method of closing the second opening P2 is not particularly limited. For example, the second opening P2 may be closed by machine sewing, ultrasonic welding, high frequency welding, heat adhesion, or the like. Among these, it is preferable that the second opening P2 is closed by machine sewing. The type of machine sewing is not particularly limited. For example, the types of machine sewing include lock stitching, chain stitching, zigzag stitching, hand sewing, and blind stitching. Since the second opening P2 is closed by these machine sewing methods, the garment 1 can be removed by pulling the sewing thread when taking off the garment. Therefore, the garment 1 can easily form the second opening P2.
[0068] When the second opening P2 is closed by sewing with a sewing machine, the number of stitches of the sewing machine is not particularly limited. As an example, the number of stitches is preferably 2 mm or more, and more preferably 3 mm or more. Also, the number of stitches is preferably 10 mm or less, and more preferably 6 mm or less. By keeping the number of stitches within the above range, it is easy to remove the closing part while maintaining the hermeticity of the seam necessary for dust resistance.
[0069] FIG. 4 is a schematic cross-sectional view for explaining the sewing state when the sewing machine is a lock stitch or a zigzag stitch. FIG. 5 is a schematic surface view for explaining the sewing state when the sewing machine is a lock stitch. FIG. 6 is a schematic surface view for explaining the sewing state when the sewing machine is a zigzag stitch. As shown in FIG. 4 to FIG. 6, when the sewing machine is a lock stitch or a zigzag stitch, the upper thread 41 can be removed by gripping (gripping portion 4a) the exposed upper thread 41 and pulling it. The lower thread 42 remains on the garment 1.
[0070] When the second opening P2 is closed by a lock stitch or a zigzag stitch, the count of the lower thread is preferably equal to or greater than the count of the upper thread. As an example, the count of the lower garment thread is preferably between #0 and #50, and the count of the upper thread is preferably between #30 and #80. By having the count of the lower thread be equal to or greater than the count of the upper thread, friction caused by entanglement of the upper and lower threads when the upper thread is pulled and removed is likely to be reduced. As a result, the upper thread can be more easily removed from the garment 1, making it easier to open the second opening P2.
[0071] Furthermore, when the second opening P2 is closed by a lock stitch or a zigzag stitch, the tension (T1) of the upper thread is preferably 1 gf or more, and more preferably 5 gf or more. Furthermore, the tension (T1) of the upper thread is preferably 100 gf or less, and more preferably 60 gf or less. When the tension (T1) of the upper thread is within the above range, the sewing thread of the garment 1 can be easily pulled and removed when the garment 1 is taken off. Therefore, the garment 1 can easily form the second opening P2. The tension (T1) of the upper thread can be obtained, for example, by using a digital tension gauge (DTM-BD, manufactured by TOWA) to pull the upper thread from the thread path outlet of the needle bar with the thread take-up of the sewing machine raised to the highest position, and reading the displayed value when the thread is pulled by the device at a speed of about 3 m / min.
[0072] Fig. 7 is a schematic cross-sectional view for explaining the sewing state when the sewing machine sewing type is chain stitch. Fig. 8 is a schematic surface view for explaining the sewing state when the sewing machine sewing type is chain stitch. As shown in Figs. 7 and 8, when the sewing machine sewing type is chain stitch, the upper thread 41 can be removed by gripping (grip portion 4a) and pulling the exposed upper thread 41.
[0073] When the sewing machine is a chain stitch (single chain stitch), the sewing thread preferably has at least an upper thread, and the loop length of the chain stitch is preferably 1.5 mm to 4 mm. As shown in Figs. 7 and 8, the chain stitch is made of an upper thread 41, and has a characteristic that by undoing one end of the lower circular (chain) stitch, the fraying is linked in the stitch direction. Therefore, for example, less force is required to pull and remove the sewing thread (upper thread 41) when taking off the garment, compared to the case of a lock stitch. The loop length is preferably 1.5 mm or more, and more preferably 2 mm or more. Moreover, the loop length is preferably 4 mm or less, and more preferably 3 mm or less. By having the loop length within the above range, less force is required to pull and remove the sewing thread when taking off the garment. Therefore, the garment 1 can more easily form the second opening P2.
[0074] When the sewing thread includes an upper thread and a lower thread, it is preferable that the upper thread and the lower thread are different colors. For example, when the upper thread is pulled and removed, it is preferable that the upper thread is a color (e.g., black) different from that of the garment 1 (e.g., a white garment) so that the position of the exposed upper thread is easy to see. This makes it easy for the wearer to find the upper thread.
[0075] Returning to the explanation of the sewing thread, the type of the sewing thread is not particularly limited. For example, the sewing thread may be a polyamide fiber such as nylon 6 or nylon 66, a polyester fiber such as polyethylene terephthalate, polybutylene terephthalate, or polytrimethylene terephthalate, a polyacrylonitrile fiber, a polyolefin fiber such as polyethylene or polypropylene, or a polyvinyl chloride fiber.
[0076] The form of the fiber constituting the sewing thread is not particularly limited. As an example, the sewing thread is preferably a monofilament, a multifilament, or a spun yarn. Among these, the sewing thread is more preferably a monofilament or a multifilament, since the thread surface has few irregularities and has little friction, making it easy to remove. This allows the garment 1 to be removed by pulling the closure member when taking off the garment. Therefore, the garment 1 can easily form the second opening P2.
[0077] When the sewing thread is a monofilament, the fineness of the monofilament is preferably 300 dtex or more, more preferably 500 dtex or more. The fineness of the monofilament is preferably 3000 dtex or less, more preferably 2000 dtex or less. When the fineness of the monofilament is within the above range, the sewing thread has excellent strength. The fineness of the monofilament can be calculated based on JIS L 1018 (2010) 8.7.1.
[0078] When the sewing thread is a multifilament, the total fineness of the multifilament is preferably 300 dtex or more, more preferably 500 dtex or more. The total fineness of the multifilament is preferably 3000 dtex or less, more preferably 2000 dtex or less. When the total fineness of the multifilament is within the above range, the sewing thread has excellent strength. The total fineness of the multifilament can be calculated based on JIS L 1013 (2010) 8.3.1 Correct fineness A method.
[0079] When the sewing thread is made of multifilament, the sewing thread is composed of at least multifilament, lower twist yarn, and upper twist yarn. The lower twist yarn is formed by twisting the multifilament together, and the upper twist yarn is further twisted by twisting a plurality of the lower twist yarns together to form the upper twist yarn. It is preferable in terms of sewability that the twist direction of the lower twist yarn using multifilament is the S direction and the twist direction of the upper twist yarn is the Z direction. When the twist directions of the lower twist yarn and the upper twist yarn are the same, the direction in which the yarn untwists is also the same, so the untwisting force is stronger, and the yarn is more likely to fray or vary during sewing. In addition, when the twist direction of the lower twist yarn is the Z direction and the twist direction of the upper twist yarn is the S direction, the rotation direction of the rotary kettle that scoops the sewing thread during sewing with a sewing machine coincides with the twist ridges of the upper twist yarn, so when the rotary kettle and the ridges of the upper twist yarn rub against each other, a frictional force acts in the untwisting direction of the upper twist yarn, and the yarn is more likely to fray or vary during sewing.
[0080] From the viewpoint of thread strength, it is preferable that the number of twisted first twist yarns constituting the upper twisted yarn is 2 or more. When the number of twisted first twist yarns is 1, the upper twisted yarn is an untwisted first twist yarn, and since all the tension applied during sewing is concentrated on this one yarn, it tends to break easily. It is more preferable that the number of twisted first twist yarns constituting the upper twisted yarn is in the range of 2 to 3.
[0081] The twist number of the lower twisted yarn and the upper twisted yarn is preferably in the range of 200 to 480 T / m, since it has a strength that can withstand sewing and has little friction due to unevenness of the yarn surface. When the twist number is 200 T / m or more, the lower twisted yarn and the upper twisted yarn have strong binding force and are less likely to break during sewing. On the other hand, when the twist number is 480 T / m or less, unevenness of the yarn surface due to twisting is less likely to occur, and friction between the surface unevenness and the fabric during sewing is less likely to occur. As a result, the sewing thread is easily removed as a closing member. The twist number of the lower twisted yarn and the upper twisted yarn is more preferably in the range of 300 to 450 T / m. The twist number referred to here is measured based on the number test method according to JIS L 1013 (2010) 8.13 and calculated by the following formula. Twist ratio (%) = number of twists in top twist yarn ÷ number of twists in bottom twist yarn × 100
[0082] When the sewing yarn is a spun yarn, it is preferable from the standpoint of sewability that the twist direction of the first twisted yarn is the S direction and the twist direction of the second twisted yarn is the Z direction, as with multifilament yarns, and it is preferable from the standpoint of yarn strength that the number of twisted first twisted yarns constituting the second twisted yarn is 2 or more, and more preferably in the range of 2 to 3.
[0083] The cross-sectional shape of the fiber is not particularly limited. For example, the cross-sectional shape may be a round or elliptical cross-section, or an irregular cross-section. The irregular cross-section may be a multi-lobed cross-section such as an H-shape, an X-shape, a Y-shape, a W-shape, or a cross-shape, or a polygonal cross-section such as a triangle, a rectangle, a pentagon, or a hexagon with deep grooves. Among these, the cross-sectional shape of the fiber is preferably a round cross-section or an elliptical cross-section, from the viewpoint of obtaining the advantage that the fibers are less likely to get caught and have low frictional resistance.
[0084] The strength (T2) of the sewing thread is preferably greater than the tensile strength (T3) of the sewing thread for the garment 1. This makes it difficult for the sewing thread to break when pulled during doffing. Therefore, the garment 1 can easily form the second opening P2. The strength (T2) of the sewing thread is preferably 6 (N) or more, and more preferably 10 (N) or more. The strength (T2) of the sewing thread is preferably 98 (N) or less, and more preferably 45 (N) or less. The tensile strength (T3) of the sewing thread for the garment 1 is preferably 0.5 (N) or more, and more preferably 1 (N) or more. The tensile strength (T3) of the sewing thread for the garment 1 is preferably 20 (N) or less, and more preferably 10 (N) or less. The strength of the sewing thread (T2) can be determined, for example, based on JIS L 1013 (2010) 8.5 Tensile strength test method, by using an Instron tensile tester to pull the sewing thread at a constant rate of extension, and measuring the load value when the sewing thread breaks, and this can be determined as the strength. The tensile strength of the sewing thread for the garment 1 (T3) can be determined, for example, based on JIS L 1093:2011 Seam strength test method for textile products 7.1.2 A-2 method (seam vertical method) by using an Instron tensile tester with a gripping distance of 76 mm, with the stitching line where the garment and the sewing thread intersect passing through the center of the upper and lower gripping parts, gripping the gripping part with the upper grip and gripping the body part with the lower grip, cutting the sewing thread of the seam at the upper end of the lower grip, and then pulling the gripping part and the body part, and measuring the load value when the sewing thread breaks or comes off during pulling, and this can be determined as the strength.
[0085] As described above, according to this embodiment, the garment 1 is provided with a second opening P2 separate from the first opening P1 through which the body passes when worn. The second opening P2 is closed by a closing member 4 such as sewing thread, and is opened by removing the closing member 4. In this way, the garment 1 can form a new opening (second opening P2) separate from the opening when worn when taken off. Furthermore, the garment 1 can be taken off with small body movements through the formed opening (second opening P2), reducing the possibility of touching a contaminated area.
[0086] In this embodiment, the clothing 1 is not particularly limited. For example, the clothing 1 is preferably disposable clothing 1, and more preferably protective clothing for protecting the wearer from contaminants such as dust and viruses, simple cooking clothing for disaster relief support, simple work clothing for preventing adhesion in environments with a lot of adhesion, etc. This makes the clothing 1 suitable as clothing to be worn when performing work involving contact with contaminated areas.
[0087] <Second embodiment> The garment of one embodiment of the present invention (second embodiment) is similar to the garment of the first embodiment (see FIG. 2) except that one end of the opening and closing member is provided near the wearer's waist rather than on the peripheral edge of the hood.
[0088] Fig. 9 is a schematic rear view of the garment of this embodiment (second embodiment). As shown in Fig. 9, the garment 1a has one end (grip portion 4a) of the opening and closing member 4 exposed near the wearer's waist. When taking off the garment, the wearer can remove it by gripping and pulling the grip portion 4a.
[0089] In this case, if the opening / closing member 4 is, for example, a sewing thread, the sewing thread is composed of a portion (sewing thread 4b) that extends to the upper garment 6 and the hood 5 along the length direction of the body portion 2, and a portion (sewing thread 4c) that extends to the toes of the lower garment 7 along the length direction of the body portion 2. The sewing threads 4b and 4c are shorter in length than the sewing threads described above in the first embodiment. Therefore, less force is required to pull and remove the sewing thread when the garment 1a is taken off. Therefore, the garment 1a can more easily form the second opening P2. In addition, the grip portion 4a is not exposed from the peripheral portion of the hood 5, so it does not block the wearer's view. [Explanation of symbols]
[0090] 1, 1a clothing 2 Body part 3 Sleeves 4 Opening and closing members 41 Upper thread 42 Lower thread 4a Grip part 4b, 4c sewing threads 5 Hood 6 Upper garment 7 Lower garment P1 First opening P2 Second opening
Claims
1. A first opening through which a wearer passes a body when wearing the garment, and a second opening through which the wearer removes the body when undressing, the second opening being different from the first opening, The second opening is closed by a closing member, The garment includes an upper garment that covers the upper body and a lower garment that covers the lower body, and has at least a body part; The second opening is provided in a length direction of the upper garment and in a crotch direction of the inner thigh of the lower garment, The garment, wherein the second opening, which was previously closed, is opened by removing the closing member.
2. The garment of claim 1 , wherein the closure member has an exteriorly exposed grip portion.
3. The garment according to claim 2, wherein the length of the gripping portion in the longitudinal direction is 1 to 6 cm.
4. The garment according to any one of claims 1 to 3, wherein the closure member is a sewing thread.
5. The second opening is closed by sewing with a sewing machine. The garment according to any one of claims 1 to 3, wherein the type of sewing machine is a lock stitch, a chain stitch, a zigzag stitch or a blind stitch.
6. The second opening is closed by sewing with a sewing machine, 5. The garment according to claim 4, wherein the type of sewing performed by the sewing machine is a lock stitch, a chain stitch, a zigzag stitch or a blind stitch.
7. The type of sewing is a lock stitch or a zigzag stitch, the closure member is a sewing thread; 7. The garment according to claim 5, wherein the sewing thread comprises an upper thread and a lower thread, and the count of the lower thread is equal to or greater than the count of the upper thread.
8. The type of sewing machine is a chain stitch, The sewing thread has at least a needle thread, 7. The garment according to claim 6, wherein the loop length of the chain stitch is between 1.5 mm and 4 mm.
9. 8. The garment according to claim 7, wherein the tension (T1) of the upper thread is 1 to 100 gf.
10. 5. The garment of claim 4, wherein the strength (T2) of the sewing thread is greater than the tensile strength (T3) of the sewing thread for the garment.
11. The garment according to any one of claims 1 to 10, wherein the closure member is a monofilament, a multifilament or a spun yarn.
12. The garment further comprises a hood; The garment according to any one of claims 1 to 11, wherein the second opening is provided from the hood in a length direction of the upper garment and in a crotch direction of the inner thigh of the lower garment.
13. The garment according to any one of claims 1 to 12, wherein the garment is for use as a disposable garment.
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