| JP06193368 | SUN SHADE DEVICE FOR VEHICLE |
| JP02015243 | ELECTROCHROMIC VARIABLE-TRANSMITTANCE GLASS PLATE |
| JP07101006 | BUILDING MATERIAL SHEET FOR OUTDOOR |
Claims
[1] A method for manufacturing a blind fabric for a screen blind, the method comprising steps of:
(a) double-weaving a base fabric 11 and a screen fabric 12 using a weaving machine to form a fabric plate 10 having double- woven portions 20 having a predetermined distance therebetween, wherein the base fabric 11 and the screen fabric 12 attached to each other at each of the double- woven portions 20;
(b) cutting an upper portion of each of the double- woven portions 20 of the screen fabric 12 in the woven fabric plate 10; and
(c) coupling a cover fabric 30 to an end portion of the screen fabric 12 cut in the step (b) to form the blind fabric 50, a size of the cover fabric 30 being same as that of the base fabric 11.
[2] The method according to claim 1, wherein a width of each of the double- woven portions 20 ranges from 0.3 to 3cm. [3] The method according to claim 1, wherein step (c) comprises coupling the cover fabric 30 to the end portion of the screen fabric 12 through an ultrasonic fusion bonding. [4] A blind fabric for a screen blind comprising: a screen fabric 12 disposed on a front side; a base fabric 11 double- woven with the screen fabric 12 so as to be positioned on a rear side; a plurality of double- woven portions 20 having a predetermined distance therebetween, wherein the base fabric 11 and the screen fabric 12 attached to each other at each of the plurality of double- woven portions 20; and a cover fabric 30 coupled to an end portion of the screen fabric 12, divided by cutting upper end portions of the plurality of double- woven portions 20 having a predetermined distance therebetween, wherein a direct transmittance of a sunlight is controlled by the coupling of the end portion of the screen fabric 12 to the cover fabric 30, and the screen fabric 12 is attached to the base fabric 11 through the double- woven portions 20. [5] The blind fabric according to claim 4, wherein each of the base fabric 11 and the cover fabric 30 comprises a mesh-type fabric having a high sunlight transmittance. [6] The blind fabric according to claim 4, wherein the screen fabric 12 comprises a dense fabric having a low sunlight transmittance. [7] The blind fabric according to claim 4, wherein a width of each of the plurality of double-woven portions 20 ranges from 0.3 to 3.0cm. [8] The blind fabric according to claim 4, wherein the coupling between the end portion of the screen fabric 12 and the cover fabric 30 is carried out by an ultrasonic fusion bonding. [9] The blind fabric according to claim 4, wherein a pattern or picture 44 is disposed on a surface of the screen fabric 12. [10] The blind fabric according to claim 4, wherein a pattern or picture is disposed on a surface of each of the base fabric 11 and the cover fabric 30. |
Description
FABRIC FOR SCREEN BLIND AND METHOD FOR MANUFACTURING THE SAME
Technical Field
[1] The present invention relates to a fabric for a screen blind and a method for manufacturing the same, and more specifically, to a fabric for a screen blind and a method for manufacturing the same wherein a fabric manufacturing process is simplified by performing double-weaving in a manner that a screen fabric and a base fabric are coupled to each other through double- woven portions. Further, after the screen fabric is cut, end portions of the cut screen fabric are coupled to a cover fabric by ultrasonic fusion bonding such that various patterns or pictures drawn on the screen fabric are arranged in order, and the coupling between the cover fabric and the end portions thereof is reliably achieved. Background Art
[2] In general, a blind or Venetian blind may be manufactured by plaiting thin and narrow metal plates, wood plates, plastic plates and the like at a predetermined distance from each other so as to block a sunlight. The blind is hung to be used on a curtain box disposed around the window. The blind may consist of various materials such as a paper or a cloth having various shapes.
[3] A roll blind on the market has such a structure wherein a curtain is manually or automatically rolled and unrolled by a winding rod provided at an upper portion. That is, the roll blind can be opened and closed by rolling and unrolling the roll blind in a vertical direction.
[4] In addition, a vertical blind is widely used, wherein a curtain is moved in a side- to-side direction through a guide member provided in the upper portion. A horizontal blind is also widely used. A main function of such blinds is to block the sunlight from being incident on an inside of a house or prevent the inside of the house from being visible from an outside. In addition, such blinds also serve to prevent an external wind from blowing into the house.
[5] A conventional screen blind and a conventional method for manufacturing the same are described below.
[6] As shown in Fig. 1, in accordance with the conventional method for manufacturing a screen blind, a base fabric 1 and a screen fabric are prepared. Thereafter, the screen fabric is cut into a plurality of cut screen fabrics 2 having a suitable size. Each of the cut screen fabrics 2 is then bonded to the base fabric 1 in a manner that that only one end portion thereof is bonded. Thereafter, as shown in Fig. 2, a cover fabric 3 is
bonded to the other end portion of each of the cut screen fabrics 2, thereby forming a blind fabric 5. The blind fabric 5 is then coupled to a frame of the screen blind. The screen blind is hung on a window.
[7] The conventional method and the conventional screen blind have following problems.
[8] First, the conventional manufacturing process is complex because the screen fabric should be cut and then bonded to the base fabric 1. That is, the screen fabric should be cut into the plurality of cut screen fabrics 2, and the cut screen fabrics 2 should be bonded to the base fabric 1 in a manner that the cut screen fabrics 2 are at a level with each other. Therefore, when patterns or pictures are printed on the screen fabric, it is very likely that patterns or pictures may not be arranged correctly after cutting and bonding the screen fabric.
[9] Second, since the screen fabrics 2 are bonded one by one, an adhesive strength may not be strong and the screen fabrics 2 may be separated by a small force. Therefore, the durability of the screen blind may be degraded. Disclosure of Invention Technical Problem
[10] It is an object of the present invention to provide a blind fabric for a screen blind and a method for manufacturing the same wherein a fabric manufacturing process is simplified by performing double- weaving in a manner that a screen fabric and a base fabric are coupled to each other through double- woven portions. Further, after the screen fabric is cut, end portions of the cut screen fabric are coupled to a cover fabric by ultrasonic fusion bonding such that various patterns or pictures drawn on the screen fabric are arranged in order, and the coupling between the cover fabric and the end portions thereof is reliably achieved. Technical Solution
[11] In order to achieve the above-described object of the present invention, there is provided a method for manufacturing a blind fabric for a screen blind, the method comprising steps of: (a) double- weaving a base fabric 11 and a screen fabric 12 using a weaving machine to form a fabric plate 10 having double- woven portions 20 having a predetermined distance therebetween, wherein the base fabric 11 and the screen fabric 12 attached to each other at each of the double- woven portions 20; (b) cutting an upper portion of each of the double- woven portions 20 of the screen fabric 12 in the woven fabric plate 10; and (c) coupling a cover fabric 30 to an end portion of the screen fabric 12 cut in the step (b) to form the blind fabric 50, a size of the cover fabric 30 being same as that of the base fabric 11.
[12] There is also provided a blind fabric for a screen blind comprising: a screen fabric
12 disposed on a front side; a base fabric 11 double-woven with the screen fabric 12 so as to be positioned on a rear side; a plurality of double- woven portions 20 having a predetermined distance therebetween, wherein the base fabric 11 and the screen fabric 12 attached to each other at each of the plurality of double- woven portions 20; and a cover fabric 30 coupled to an end portion of the screen fabric 12, divided by cutting upper end portions of the plurality of double- woven portions 20 having a predetermined distance therebetween, wherein a direct transmittance of a sunlight is controlled by the coupling of the end portion of the screen fabric 12 to the cover fabric 30, and the screen fabric 12 is attached to the base fabric 11 through the double- woven portions 20.
Advantageous Effects
[13] As described above, the blind fabric manufacture by the method of the present invention has an improved durability and does not require an additional bonding because the base fabric and the screen fabric are double- woven instead of weaving the base fabric and the screen fabric separately.
[14] Moreover, the bonding between the screen fabric and a cover fabric has superior adhesive strength and is smooth because the cover fabric is coupled to end portions of the screen fabric by the ultrasonic fusion bonding method. Brief Description of the Drawings
[15] Fig. 1 is a diagram illustrating a base fabric used in a conventional method for manufacturing a screen blind.
[16] Fig. 2 is a diagram illustrating a bonding process wherein a cover fabric is bonded to a plurality of cut screen fabrics in accordance with a conventional method for manufacturing a screen blind.
[17] Fig. 3 is a diagram illustrating a fabric plate used in a method for manufacturing a blind fabric for a screen blind in accordance with the present invention.
[18] Fig. 4 is a cross-sectional view of a fabric plate used in a method for manufacturing a blind fabric for a screen blind in accordance with the present invention.
[19] Fig. 5 is a diagram illustrating a state wherein a screen fabric is cut in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention.
[20] Fig. 6 is a diagram illustrating a state wherein a cover fabric is bonded to end portions of cut screen fabrics through ultrasonic fusion bonding in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention.
[21] Fig. 7 is a diagram illustrating a closed state of a screen blind coupled to a frame in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention.
[22] Fig. 8 is a diagram illustrating an open state of a screen blind coupled to a frame in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention. Best Mode for Carrying Out the Invention
[23] The method for manufacturing the blind fabric for the screen blind in accordance with the present invention differs from the conventional method in that the base fabric and the screen fabric are double-weaved to provide an improved durability, and an improved alignment of a pattern on the screen fabric.
[24] The method for manufacturing the blind fabric for the screen blind is described in detail with reference to the accompanying drawings.
[25] The present invention includes a step 1 of weaving a fabric plate 10 by simult aneously double- weaving a base fabric 11 and a screen fabric 12 using a weaving machine such that a plurality of double- woven portions 20 having a predetermined distance therebetween, at each of which the base fabric 11 and the screen fabric 12 are attached to each other in line.
[26] Fig. 3 is a diagram illustrating a fabric plate used in a method for manufacturing a blind fabric for a screen blind in accordance with the present invention. Fig. 4 is a cross-sectional view of a fabric plate used in a method for manufacturing a blind fabric for a screen blind in accordance with the present invention.
[27] As shown in Figs. 3 and 4, the screen fabric 12 and the base fabric 11 are woven simultaneously. In accordance with a conventional weaving machine, only one sheet of fabric is woven per weaving. However, in accordance with a weaving machine used for the method for manufacturing the blind fabric for the screen blind of the present invention, a height, a time, and a number of ascents and descents of the heald may be controlled through a programmed electromagnet. Therefore, two or more sheets of fabrics may be woven. The fabrics woven in this manner may consist of different materials or a same of material.
[28] In the present invention, the fabric plate 10 is woven using the double-weaving method wherein the double- woven portions 20 at which the screen fabric 12 and the base fabric 11 are bonded, i.e., attached to each other, are formed to have a predetermined distance therebetween.
[29] The weaving method can be embodied easily by lifting and lowering a warp using the heald when injecting a weft of the screen fabric 12 of an upper portion and the base fabric 11 of a lower portion. Therefore, a detailed description thereof is omitted.
[30] A key feature of the present invention is that an additional process of cutting the screen fabric 12 is not required because the screen fabric 12 and the base fabric 11 are double- woven simultaneously. Therefore, through the step 1, the screen fabric 12 and
the base fabric 11 are double-woven at the double-woven portions 20.
[31] The present invention includes a step 2 of cutting an upper portion of each the double- woven portions 20 of the screen fabric 12 of the fabric plate 10. That is, as shown, an upper side of each of the double- woven portions 20 is cut. A lower side of each of the double woven-portions 20 may be cut instead of the upper side, and the fabric plate 10 may be rotated. When the screen fabric 12 is cut in this way, a parallel of the cut screen fabrics 12 is maintained because the cut screen fabrics 12 are not bonded one by one. That is when the cut screen fabrics 12 are bonded one by one, the bonded cut screen fabrics 12 should be inspected whether the cut screen fabrics 12 are bonded properly and in parallel. However, in accordance with the present invention, the cut screen fabrics 12 are in parallel and the bonding is not required because the screen fabric 12 and the base fabric 11 are woven in an integrated fashion.
[32] The present invention includes a step 3 of coupling a cover fabric 30 having a size same as that of the base fabric 11 to an end portion of each of the cut screen fabrics 12, thereby forming a blind fabric 50.
[33] Fig. 5 is a diagram illustrating a state wherein a screen fabric is cut in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention.
[34] As shown in Fig. 5, the end portion of each of the cut screen fabrics 12, which are cut from the fabric plate 10 and then raised, are coupled to the cover fabric 30. The cover fabric 30 preferably has the size same as that of the base fabric 11, and the screen fabric 12 attached to the cover fabric 30 in a manner that the attached portion has a distance same as the predetermined distance between the double woven-portions 20. The blind fabric 50 is thereby formed.
[35] As shown in Figs. 7 and 8, the blind fabric 50 manufactured by above-described method is attached to a blind frame 61 to be hung on a window.
[36] Fig. 7 is a diagram illustrating a closed state of a screen blind coupled to a frame in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention. Fig. 8 is a diagram illustrating an open state of a screen blind coupled to a frame in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention.
[37] As shown in Fig. 7, the screen blind can be closed such that the screen fabric 12 blocks a sunlight. As shown in Fig. 8, the screen fabric 12 may be at a predetermined angle to adjust the sunlight passing through the cover fabric 30 and the base fabric 11. Mode for the Invention
[38] Preferably, a width of each of the double- woven portions 20 may range from 0.3 to
3cm. That is, it is preferable that the screen fabric 12 and the base fabric 11 are woven
in a manner that each of the double-woven portions 20, at which the base fabric 11 and the screen fabric 12 are attached to each other, has the width ranging from 0.3 to 3cm. Because the double-woven portions 20 hardly pass the sunlight, the width of each of the double- woven portions 20 should not be too large. However, if the width of each of the double- woven portions 20 is too small, the durability of the screen blind is degraded, and the quality of shadow is not decorative. Therefore, it is preferable that the width ranges from 0.3 to 3cm.
[39] In addition, it is preferable that the cover fabric 30 is coupled to the end portion of the cut screen fabric 12 through an ultrasonic fusion bonding.
[40] Fig. 6 is a diagram illustrating a state wherein the cover fabric is bonded to the end portions of the cut screen fabrics through the ultrasonic fusion bonding in accordance with a method for manufacturing a blind fabric for a screen blind of the present invention.
[41] The cover fabric 30 may be bonded to the end portions of the screen fabric 12 through any bonding methods. That is, a conventional bonding method using an adhesive or a heat may be used. In accordance with the present invention, a reliable coupling is achieved by the ultrasonic fusion bonding. The ultrasonic fusion bonding fuses and bonds two mediums using a strong vibration. The ultrasonic fusion bonding is advantageous in that the adhesive strength is superior and the coupled portion is smooth. Therefore, problems of the conventional bonding methods such as the weak adhesive strength and a burning of the coupled portion may be overcome.
[42] The present invention also claims the fabric manufactured by the method of the present invention as well as the method for manufacturing the blind fabric for the screen blind.
[43] That is, referring to Figs. 3 through 8, the blind fabric 50 of the screen blind comprises the screen fabric 12 disposed on a front side and the base fabric 11 disposed on a back side wherein the screen fabric 12 and the base fabric 11 are double- woven. The blind fabric 50 also comprises the double- woven portions 20 having the predetermined distance therebetween at each of which the screen fabric 12 and the base fabric 11 are attached to each other. Further, the blind fabric 50 comprises the cover fabric 30 coupled to the end portions of the cut screen fabric 12 wherein the coupled portions has the predetermined distance therebetween. Therefore, the direct transmittance of the sunlight may be adjusted.
[44] As described above, the blind fabric is woven by double- weaving the screen fabric
12 and the base fabric 11 coupled to each other at the double- woven portions 20. In addition, the screen fabric 12 is cut and aligned in a manner that the end portions of the cut screen fabric 12 are at the level with each other. The cover fabric 30 is securely coupled to the end portions of the screen fabric 12, thereby forming the blind fabric 50.
In addition, the blind fabric 50 is coupled to the blind frame 61 as shown in Figs. 7 and 8 to complete the screen blind 100. An operation principle of the screen blind 100 is as follows. When the screen fabric 12 of the screen blind 100 is lifted and moved to a direction such that the screen fabric 12 is parallel to a ground, a distance between the base fabric 11 and the cover fabric 30 is increased. The screen fabric 12 blocks less sunlight when the screen fabric 12 is parallel to the ground. Accordingly, the sunlight passes through the window and the screen blind to maintain a bright atmosphere. However, when the screen fabric 12 is lowered to be perpendicular to the ground, the cover fabric 30 is closer to the base fabric 11 and the screen fabric 12 is disposed therebetween to block most of the sunlight. During a day when the sunlight is strong, the screen blind 100 is used in this manner.
[45] Preferably, each of the base fabric 11 and the cover fabric 30 consist of a mesh-type fabric having a high sunlight transmittance because the mesh-type fabric allows the sunlight to pass through. Accordingly, it is preferable that the screen fabric 12 comprises a dense fabric having a low sunlight transmittance. In other words, when the sunlight is to be blocked, the screen fabric 12 consisting of the dense fabric is used to block the sunlight. Further, when the sunlight is to be passed through, the screen fabric 12 is lifted so that the transmittance of the sunlight increases through the base fabric 11 and the cover fabric 30 consisting of the mesh-type fabric.
[46] In accordance with the blind fabric of the present invention, it is preferable that the width of the double- woven portions 20 ranges from 0.3 to 3cm, and the bonding between the end portions of the screen fabric 12 and the cover fabric 30 is carried out by the ultrasonic fusion bonding.
[47] It is preferable that a pattern or a picture is disposed on a surface of the screen fabric 12. That is, the pattern or the picture may be weaved into the blind fabric during the double- weaving of the screen fabric 12 and the base fabric 11 or the pattern or the picture may be may be printed on the screen fabric 12 after the double- weaving.
[48] Contrary to the conventional art wherein the screen fabric 12 is cut and bonded to the base fabric 11, the pattern or the picture 44 is disposed on the surface of the screen fabric 12 before or after the double- weaving and the upper portion of each of the double- woven portions 20 is then cut. Therefore, the pattern or picture 44 is aligned without a distortion even after the upper portion of each of the double- woven portions 20 is cut.
[49] In addition, the pattern or the picture may be disposed on surfaces of the base fabric
11 and the cover fabric 30. That is, the pattern or the picture may be disposed not only on the screen fabric 12 but also on the base fabric 11 and the cover fabric 30. Industrial Applicability
[50] As described above, the blind fabric manufacture by the method of the present invention has an improved durability and does not require an additional bonding because the base fabric and the screen fabric are double-woven instead of weaving the base fabric and the screen fabric separately.
[51] Moreover, the bonding between the screen fabric and a cover fabric has superior adhesive strength and is smooth because the cover fabric is coupled to end portions of the screen fabric by the ultrasonic fusion bonding method.