Curtain and method for manufacturing the same

Abstract

To provide a curtain capable of achieving seamlessly 'image blocking property and transparency', namely, conflicting functions of letting in light while blocking visibility from the outside.SOLUTION: A curtain 10 includes an attachment part 14, and a body part 16 provided on the height direction lower side of the attachment part 14. The body part 16 includes a light-transmissible transparent part 18, provided on one end side in the width direction, an image blocking part 22 for reflecting light to the degree of blocking visibility, provided on the other end side in the width direction, and a gradation part 20 in which the transparent part 18 and the image blocking part 22 are seamlessly woven.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a curtain having contradictory functions and a method for manufacturing the curtain. [Background technology]

[0002] In recent years, there has been a trend for people to spend more time at home during the day amid the COVID-19 pandemic, and there is a demand for screens that can simultaneously block out images from the outside and provide transparency from the inside, preventing reflections on the screen when working remotely while still ensuring a bright external view.

[0003] As an example of a curtain that simultaneously fulfills these contradictory functions, the following Patent Document 1 discloses a lace curtain in which a left-side curtain section and a right-side curtain section with different light-gathering properties are arranged and joined together at a position offset to the left or right of the center on the left or right. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Publication No. 3190383 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the lace curtain described in Patent Document 1, the left and right curtain sections are made of different fabrics and are merely joined at the border from the attachment part to the hem using a known overlock method or the like. As a result, borders and physical unevenness arise due to differences in lighting in prominent positions on the window, marring the view.

[0006] In view of the above, an object of the present invention is to provide a curtain that seamlessly realizes both image blocking and image transmission, i.e., the conflicting functions of blocking outside visibility while letting in light, and a method for manufacturing the curtain. [Means for solving the problem]

[0007] In order to achieve the above object, the curtain of the first aspect comprises an attachment portion and a main body portion provided vertically below the attachment portion, and the main body portion comprises an image-transmitting portion provided at one widthwise end thereof and which transmits light, an image-blocking portion provided at the other widthwise end thereof and which reflects light to the extent that it blocks vision, and a gradation portion in which the image-transmitting portion and the image-blocking portion are woven together seamlessly.

[0008] In the first embodiment of the curtain, the image-transmitting portion that transmits light and the image-blocking portion that reflects light enough to block the view are woven in such a way that they form a gradation near the center, making it difficult to feel any physical or functional boundary between them. As a result, it is possible to seamlessly realize the contradictory functions of blocking the view from the outside while letting in light.

[0009] The curtain of the second aspect is the curtain of the first aspect, wherein the gradation section is a seamless arrangement of a plurality of the image-transmitting sections and the image-blocking sections extended in the height direction, the plurality of the image-transmitting sections being arranged so as to gradually narrow toward the other end in the width direction, and the plurality of the image-blocking sections being arranged so as to gradually narrow toward one end in the width direction.

[0010] According to the second aspect of the curtain, the types of fabric with opposing functions are structured so that they change in width in a step-like manner, i.e., the types of fabric alternate from narrow to wide, making it possible to seamlessly achieve the opposing functions of blocking visibility from the outside while letting in light.

[0011] A curtain according to a third aspect is the curtain according to the second aspect, in which the image-shielding portion and the image-seeing portion differ in the type of warp threads and the number of threads inserted.

[0012] The curtain of the third aspect is made of fabric types having two different weave structures that alternate from narrow to wide, making it possible to seamlessly achieve the contradictory functions of blocking visibility from the outside while letting in light.

[0013] A curtain according to a fourth aspect is the curtain according to the third aspect, wherein the warp yarns have different titanium oxide contents.

[0014] In the curtain according to the fourth aspect, the warp threads of the image-see-through portion and the image-shielding portion have different titanium oxide contents, and titanium oxide has a large refractive index, and when kneaded into the fibers, it reduces transmitted light. This makes it possible to seamlessly weave the image-see-through portion and the image-shielding portion, which have different image-shielding properties, into each other simultaneously using a common weft thread.

[0015] A fifth aspect of the present invention relates to a manufacturing method for a curtain having a see-through section provided at one end in the width direction and which transmits light, an image-shielding section provided at the other end in the width direction and which reflects light to the extent that it blocks vision, and a gradation section in which the image-shielding section and the image-shielding section are woven together seamlessly, and the manufacturing method for the curtain includes a twisting process for twisting raw yarns, a warping process for feeding warp threads of the raw yarns twisted in the twisting process to a frame divided according to the image-shielding section, the see-through section, and the gradation section, and winding the warp threads from the frame to a beam with uniform tension, and a weaving process for weaving using the warp threads warped in the warping process.

[0016] According to the manufacturing method of the curtain of the fifth aspect, the warp threads used in the image-shielding section, the image-seeing section and the gradation section are different, and in the warping process, the frame is divided in advance according to each section and the threads are fed. Since each section is arranged in parallel in the weft insertion direction, it is possible to weave each section of different fabric types (warp threads, number of reed insertions, weaving density) with a common weft thread in a short time. As a result, it is possible to improve cost performance and production efficiency compared to the case where different weft threads are used to weave each section of different fabric types and use them vertically.

[0017] The sixth aspect of the present invention is a method for manufacturing a curtain according to the fifth aspect, wherein the gradation portion is a seamless arrangement of a plurality of the image-transmitting portions and the image-blocking portions extending in the height direction, and the image-transmitting portions and the image-blocking portions extending in the height direction are woven separately by changing the warp threads.

[0018] According to the sixth aspect of the manufacturing method for curtains, a plurality of image-transmitting and image-blocking sections made of different warp threads are alternately arranged in the gradation section, making it possible to seamlessly weave them using a common weft thread.

[0019] A curtain manufacturing method according to a seventh aspect is the same as the curtain manufacturing method according to the fifth aspect, in which warping is performed using one of the beams for one warping machine.

[0020] According to the manufacturing method for a curtain of the seventh aspect, warping that would normally be performed using several beams depending on the type of yarn or the number of yarns to be inserted can be performed using a single beam, thereby improving the working efficiency.

[0021] A method for manufacturing a curtain according to an eighth aspect is the method for manufacturing a curtain according to the fifth aspect, wherein the tension is equal to or greater than 1400 Newtons and equal to or less than 1550 Newtons.

[0022] According to the curtain manufacturing method of the eighth aspect, warping and weaving are performed at a specified tension that is stronger than the tension generally required, so that even if the warp threads, thread type, and number of threads inserted into the reed are partially different, it is possible to eliminate unevenness and variation in tension on both sides in the width direction. Effect of the Invention

[0023] As described above, the curtain and the manufacturing method for the curtain according to the present invention have the excellent effect of being able to seamlessly realize the contradictory functions of image blocking and image transparency, i.e., blocking the view from the outside while letting in light. [Brief description of the drawings]

[0024] [Figure 1] 1 is a conceptual diagram illustrating an example of an overall configuration of a curtain according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a conceptual diagram illustrating an example of a state in which the curtain shown in FIG. 1 is used. [Diagram 3] 2 is a partial enlarged view illustrating an example of a gradation portion of the curtain shown in FIG. 1. [Figure 4] This is an example of a warping machine used in manufacturing the curtain shown in Figure 1. [Diagram 5] FIG. 2 is a conceptual diagram showing an example of the effect of using the curtain shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] First Embodiment The structure of a curtain 10 according to a first embodiment of the present invention will be described below with reference to Fig. 1. In addition, in the drawings for explaining the embodiment, the same components are basically given the same reference numerals, and the description thereof will be omitted.

[0026] [Curtain 10 Composition] First, the configuration of a curtain 10 according to a first embodiment of the present invention will be described with reference to Figs.

[0027] As shown in Fig. 1, the curtain 10 is formed of a substantially rectangular fabric 12 that is long in the width direction when viewed from the front. As shown in Fig. 2, the curtain 10 includes an attachment section 14 and a main body section 16 connected to the lower side of the attachment section 14 in the height direction, and the main body section 16 has an image-transmitting section 18, a gradation section 20, and an image-blocking section 22, each of which has different image-blocking properties, connected to it in the width direction.

[0028] (Mounting part 14) The attachment portion 14 is formed by sewing a roughly rectangular core fabric (interlining, not shown) to the upper end of the fabric 12 in the height direction, folding it over towards the window, and sewing the lower end of the fold over the entire width of the main body portion 16.

[0029] The attachment portion 14 has a plurality of pleats 24 formed at equal intervals in the width direction (approximately 15 cm apart in this embodiment). The pleats 24 are formed by pinching up the attachment portion 14 (the upper end of the fabric 12) toward the indoor side when the curtain 10 is in use, folding the pinched up portion in an accordion-like shape, and sewing it in place in several places so that two or three pleats are formed, with the peak on the indoor side and the bottom on the outdoor side.

[0030] A gap is formed on the indoor side between the pleats 24 and the core material, and the end of an S-shaped curtain hook (not shown) can be inserted upward in the height direction of the curtain 10 through this gap as an insertion port.

[0031] (Main body 16) A main body 16 extends downward from the height direction below the attachment part 14. The main body 16 is the remaining part of the attachment part 14 formed by folding back the upper end of the fabric 12, and has ears 26 formed at both left and right ends in a front view by folding back the fabric 12 to the outside and sewing it.

[0032] As shown in FIG. 1, the main body 16 is, by way of example, approximately rectangular with an overall width t1 of 207 cm (finished width 100 cm), an in-ear width t2 of 204 cm, and an overall length t3 of 100 cm. An image-shielding section 22 (width t4: 127.4 cm) is disposed at one end in the width direction (left side in FIG. 1), and an image-transmitting section 18 (width t6: 68.4 cm) is disposed at the other end in the width direction (right side in FIG. 1), and they are seamlessly connected by a gradation section 20 (width t5: 8.2 cm).

[0033] The curtain 10 is used as a pair with another curtain 10 that is the same size and has the image-shielding portion 22 and the see-through portion 18 symmetrical when viewed from the front, i.e., unlike Figure 1, the image-shielding portion 18 is located on the left side in the width direction and the image-shielding portion 22 is located on the right side in the width direction.

[0034] As shown in Figure 2, one of the curtains 10 in Figure 1, in which the image-blocking portion 22 is formed on the left side in the width direction, is placed on the left side in the width direction of the window, and the other curtain 10, in which the image-blocking portion 22 is formed on the right side in the width direction, is placed on the right side in the width direction of the window, so that the image-transmitting portion 18 of each curtain 10 is positioned in the center of the window.

[0035] The image shielding portion 22 is wider than the image transmitting portion 18, and the total width (total width) of the pair of image shielding portions 22 is set to be greater than the total width of the window. As a result, when the pair of gradation portions 20 are used close to the center of the window as shown in Fig. 2A, the image shielding portion 22 covers the window over the entire width, making it possible to block the view from the outside.

[0036] (Image blocking part 22) The image shielding portion 22 uses, for the weft and warp threads, textured yarns that are made by twisting polyester fibers with titanium oxide kneaded into them as a matting agent. The weft and warp threads have different titanium oxide contents. The titanium oxide content of the weft thread is approximately the same as that of textured yarns that are commercially available as semi-dull threads, and in this embodiment, it is less than 3.0 mass%.

[0037] In contrast, the titanium oxide content of the warp yarn is set to be approximately the same as that of processed yarn commercially available as full-dull yarn, and in this embodiment, it is set to 3.0 mass% or more. In addition, the warp yarn is woven at a higher density by inserting more threads into the reed than the warp yarn of the transparent portion 18, and is configured to reflect light to the extent that it blocks visibility.

[0038] (Transparent part 18) The translucent portion 18 uses the semi-dull yarns for the warp and weft, and is woven by passing one warp thread through one reed. The warp threads are twisted to prevent misalignment while maintaining the translucency.

[0039] The total width (total width) of the pair of see-through sections 18 is set to be equal to or greater than half the width of the window. Therefore, as shown in Fig. 2B, when the pair of gradation sections 20 are spaced apart on both the left and right sides of the window and the see-through sections 18 are used in an expanded form, it is possible to take in light from the center of the window.

[0040] (Gradation section 20) The gradation section 20 is disposed at a position slightly to the left or right of the center in the width direction of the main body section 16 when viewed from the front.

[0041] 3, the gradation section 20 is formed by alternately and seamlessly arranging a plurality of image transmitting sections 18 and image blocking sections 22 extending in the height direction. The plurality of image transmitting sections 18 are arranged so as to gradually narrow toward the other end in the width direction, while the plurality of image blocking sections 22 are arranged so as to gradually narrow toward one end in the width direction.

[0042] The multiple image-transmitting sections 18 and image-shielding sections 22 are configured so that the image-shielding properties gradually increase or decrease along the width direction, so that it is possible to switch between the image-shielding sections 22 and the image-shielding sections 18 without any noticeable seams from the standpoint of image-shielding properties.

[0043] [Manufacturing method of curtain 10] Next, a method for manufacturing the curtain 10 will be described with reference to FIG.

[0044] (Yarn twisting process) First, in the twisting process, the raw yarns are aligned and twisted around the longitudinal axis to be twisted. Specifically, the spool around which the raw yarns are wound is attached to the spindle of a twisting machine, and rotated in the S direction (clockwise) or Z direction (counterclockwise) a predetermined number of twists (in this embodiment, the number of twists is 500 to 1000 [T / m], which is a general number of twists for medium twist, but it may be soft twist to 500 [T / m] or strong twist to 1000 [T / m]) to twist the yarn.

[0045] (warping process) Next, warp yarns of the raw yarns twisted in the twisting process are fed to a frame (creel device) 28 that is divided into three parts according to the image-shielding sections 22, the image-transmitting sections 18, and the gradation sections 20. Note that, although it is divided into three parts in this embodiment, it may be divided into four or more parts according to the number of image-shielding sections 22, the image-transmitting sections 18, and the gradation sections 20 woven into the main body section 16.

[0046] 4, the warper 30 includes a beam 32, a frame 28, and guide rollers 34. The frame 28 is provided with a stand 38 on which a warp yarn package 36 is set, and a plurality of arms 40 are erected on the stand 38. A plurality of support shafts 42 (eight in this embodiment) are joined to the arm 40 at equal intervals along the longitudinal direction of the arm 40, and the yarn package 36 is engaged with the stand 38 by inserting the hollow shaft of the yarn package 36 into the support shaft 42.

[0047] A beam 32 around which a warp yarn group 44 is wound is provided in front of the frame 28, and a guide roller 34 is provided above the beam 32 and fixed by a beam stand 46. By rotating the beam 32 at a predetermined speed using a driving means (not shown), the warp yarn group 44, which has been pulled out from the yarn package 36 of the frame 28 to the front of the apparatus, is wound around the beam 32 via the guide roller 34.

[0048] The framework 28 is divided into three parts according to the image-shielding section 22 in which two full-dull yarns are woven into the reed, the image-transmitting section 18 in which one semi-dull yarn is woven into the reed, and the gradation section 20 in which the image-shielding section 22 and the image-transmitting section 18 are alternately arranged at a predetermined interval, and yarn is fed to each of them.

[0049] The beam 32 is wound with a number of warp threads equal to the number of reeds for the fabric width multiplied by the number of reeds inserted under uniform tension (in this embodiment, 1,400 Newtons or more and 1,550 Newtons or less), forming a yarn sheet in which the warp threads are uniformly arranged at a specified width.

[0050] (Weaving process) The weft is set on the weaving machine, and the warp is inserted through the heald and reed. The heald is raised and lowered to form an opening for the warp. After the weft is inserted into the opening, the reed is driven toward the weft to begin weaving.

[0051] Next, the effects of the present invention will be described with reference to FIG. 2 and FIG.

[0052] As shown in Fig. 2A, when the pair of gradation sections 20 are used near the center of the window, the image blocking section 22 covers the entire width of the window. Therefore, even during times when it is dark outside and the interior of the room can be seen from outside when the lights are turned on, it is possible to block the view from outside, as shown in Fig. 5A.

[0053] Furthermore, when a light meter was placed on a desk 1.5 m away from the window and measurements were taken in a sunny July morning with the pair of gradation sections 20 positioned close to the center of the window, the illuminance was measured at approximately 570 lux, meaning that it is possible to block views from outside while still providing a moderate level of brightness during the day.

[0054] In contrast, as shown in FIG. 2B, when a pair of gradation sections 20 are spaced apart on either side of the window and the image-shielding section 18 is widened for use, an illuminance of approximately 870 lux is measured under the same conditions as above, which is approximately 1.5 times brighter than when the image-shielding section 22 is widened.

[0055] Furthermore, if it is bright outside during the day (blank illuminance under the same conditions as above: approximately 1300 lux), as shown in Figure 5B, even in a room with a brightness of approximately 870 lux, it is possible to block some degree of visibility from the outside compared to the outside.

[0056] In this way, the curtain 10 of the present invention comprises an attachment portion 14 and a main body portion 16 provided vertically below the attachment portion 14. The main body portion 16 comprises an image-transmitting portion 18 provided at one end in the width direction and which transmits light, an image-blocking portion 22 provided at the other end in the width direction and which reflects light to the extent that it blocks vision, and a gradation portion 20 in which the image-transmitting portion 18 and the image-blocking portion 22 are woven together seamlessly.

[0057] The image-transmitting portion 18, which transmits light, and the image-blocking portion 22, which reflects light enough to block the view, are woven together to form a gradation near the center, making it impossible to sense any physical or functional boundaries. As a result, it is possible to seamlessly realize the contradictory functions of blocking the view from the outside while letting in light.

[0058] <Supplementary explanation of this embodiment> In this embodiment, the gradation section 20 is woven near the center of the main body 16, but there is no limit to the number of gradation sections 20 or the multiple image-shielding sections 22 and image-transmitting sections 18 that make up the gradation section 20; for example, both widthwise ends are made into image-shielding sections 22, a pair of gradation sections 20 are adjacent to the widthwise inside of these, and an image-transmitting section 18 is provided on the widthwise inside of these, i.e., in the widthwise center.

[0059] It is also possible to make thick curtains by thickening the warp threads and making the fabric thicker, and there is no limit to the thickness of the fabric.

[0060] Although the embodiment of the present invention has been described in detail above, the scope of the present invention is not limited to the above embodiment. Furthermore, the above embodiment can be combined with the above embodiment and modified in various ways, and can be improved or modified without departing from the spirit of the present invention. [Explanation of symbols]

[0061] 10. Curtains 14 Mounting part 16 Main body 18 Transparent part 20 Gradient Section 22 Masking

Claims

1. A mounting portion, A main body portion provided below the mounting portion in a height direction, The main body portion is an image-transmitting portion provided at one end side in the width direction and transmitting light; an image blocking portion provided on the other end side in the width direction and reflecting light to a degree that blocks visibility; a gradation portion in which the image transmitting portion and the image blocking portion are seamlessly woven together; Curtains with.

2. The gradation portion is A plurality of the image transmitting sections and the image blocking sections extending in the height direction are alternately arranged without joints, The plurality of image transmitting sections are arranged so as to be gradually narrower toward the other end side in the width direction, and the plurality of image blocking sections are arranged so as to be gradually narrower toward the one end side in the width direction.

2. The curtain of claim 1.

3. The image-shielding portion and the image-transmitting portion have different warp yarn types and numbers of reed insertions.

3. The curtain of claim 2.

4. The warp yarns have different titanium oxide contents.

4. The curtain of claim 3.

5. A method for manufacturing a curtain comprising: an image-transmitting section provided at one end in a width direction and transmitting light; an image-shielding section provided at the other end in the width direction and reflecting light to an extent that it blocks visibility; and a gradation section in which the image-transmitting section and the image-shielding section are woven together seamlessly, A twisting process in which the raw yarn is twisted; a warping process in which warp yarns of the raw yarns twisted in the twisting process are fed to a frame divided according to the image-shielding section, the image-transmitting section, and the gradation section, and the warp yarns are wound from the frame onto a beam with a uniform tension; a weaving process in which weaving is performed using the warp yarns warped in the warping process; A method for manufacturing a curtain comprising:

6. The gradation portion includes a plurality of the image-transmitting portions and the image-blocking portions that are extended in a height direction and are alternately arranged without joints, and the image-transmitting portions and the image-blocking portions that are extended in the height direction are woven separately by changing the warp threads. A method for manufacturing the curtain according to claim 5.

7. Warping is performed using one of the beams for one warping machine. A method for manufacturing the curtain according to claim 5.

8. The tension is set to be equal to or greater than 1400 Newtons and equal to or less than 1550 Newtons. A method for manufacturing the curtain according to claim 5.

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