Method for manufacturing curtain fabric for roll screens and curtain fabric for roll screens

Abstract

The present invention relates to a curtain fabric for a roll screen installed on the inner side of an indoor window to block light, and enables obtaining a curtain fabric for a roll screen without performing a separate PVC coating process on an eco-friendly twisted yarn in which multiple strands of polyester yarn and RM yarn (Rapid Malting Yarn) are twisted clockwise or counterclockwise.To this end, the present invention comprises a step (S100) of producing a twisted yarn (50) by twisting 3 to 30 strands of polyester yarn (51) and 2 to 20 strands of RM yarn (52) in a clockwise or counterclockwise direction; a step (S200) of threading the clockwise twisted twisted yarn (50) into the warp (70) and repeating the operation of threading the clockwise twisted warp (61)(62)(70) onto a plurality of heddles (80) in sequence to thread the warp onto the heddle (80); a step (S300) of preparing for weaving by passing the clockwise or counterclockwise twisted warp (61)(62)(70) each through the body ribs (81a) and each body rib of the body (81) in sequence; and a step of alternately raising and lowering the heddle frame in which the plurality of heddles (80) are installed, of 3 to 30 strands A step (S400) in which a polyester yarn (51) and 2 to 20 strands of RM yarn (52) are twisted clockwise or counterclockwise to form a twisted yarn (71), and two strands of counterclockwise twisted weft yarn (61)(62)(71) are passed sequentially through the openings of the warp yarns (61)(62)(70), and then the weft yarns (61)(62)(71) are pushed to the straight end to weave a curtain fabric, and then two strands of counterclockwise twisted weft yarn are passed sequentially through the openings of the warp yarns, and then the weft yarns are pushed to the straight end to weave a curtain fabric, and then two strands of counterclockwise twisted weft yarn are passed sequentially through the openings of the warp yarns, and then the weft yarns are pushed to the straight end to weave a curtain fabric repeatedly, and a heat treatment step (S600) in which the completed curtain fabric is heat-treated at a condition of 170 to 250°C to fix the RM yarn (52) to the polyester yarn (51) and integrate them, and a curtain fabric It is characterized by a fabric inspection step (S800) for inspecting whether there are any defects in the fabric, such as breakage, wrinkles, crouching, or sagging or slipping of the warp (70) or weft (71).

Description

Technology Field

[0001] The present invention relates to a curtain sheet for a roll screen that is installed on the inner side of an indoor window to block light, and more specifically, to a method for manufacturing a curtain sheet for a roll screen and a curtain sheet for a roll screen that can be obtained without performing a separate PVC coating process on an eco-friendly twisted yarn in which multiple strands of polyester yarn and RM yarn (Rapid Malting Yarn) are twisted clockwise or counterclockwise. Background Technology

[0003] Generally, curtains or roller screens are installed on windows to block light entering from the outside or to reduce the amount of incoming light.

[0004] These curtains or roller screens are used in general homes or offices to block light when there is too much light inflow, or to enhance the clarity of slides during presentations.

[0005] However, curtains or roller screens installed on windows for this purpose are vulnerable to fire when an unexpected fire occurs and act to spread the fire at a rapid pace, so much research and development is being conducted to add flame-retardant functions to reduce the speed at which the fire spreads.

[0006] Looking at the flame retardant requirements that have recently been strengthened, the UL-94 standard is V-0 or higher, and the limiting oxygen index (LOI) according to ISO 4589-2 (the minimum oxygen concentration required for the combustion of the specified material to continue at room temperature) is 28 or higher, and as has recently been strengthened, it is preferably 30 or higher, and more preferably 35 or higher.

[0007] To address this, a method of applying flame retardant to the fiber surface by post-manufacturing flame retardant treatment has been widely practiced until recently. However, this method has been continuously pointed out for numerous problems, including a high probability of uneven application of flame retardants and adhesive components to the yarn surface, resulting in uneven flame resistance; reduced flame resistance due to the detachment of flame retardants during washing; and extreme difficulty in achieving the desired level of flame retardant properties.

[0008] To improve the problem of such posterior flame, for example, U.S. Patent No. 5,990,213 proposed a flame-retardant polyester resin composition comprising a polyester resin containing polyalkylene oxide and brominated flame retardants such as tetrabromobisphenol A, decabromodiphenyl oxide, decabrominated diphenylethane, and 1,2-bis(tribromophenyl)ethane.

[0009] In addition, Korean Patent Registration No. 10-1225265 proposed the manufacture of flame-retardant fibers using a polybrominated anionic styrene-based polymer. However, the bromine-based flame-retardant component has poor heat resistance, which reduces its content in the final product. Furthermore, it significantly exceeds the toxic gas requirements for flame-retardant properties, meaning it is designated as a regulated item in many countries due to the harmful effects of the gases generated during combustion on the human body, and thus restrictions on its use are gradually expanding.

[0010] Accordingly, instead of applying bromine-based compounds, a method for manufacturing flame-retardant fibers in which phosphorus-based compounds are combined with the main chain of a polyester resin has been newly proposed in U.S. Patents No. 3,941,752 and 5,399,428 and Japanese Patent Publication No. 52-47891. However, as the acidity increases due to the addition of flame-retardant components, the formation of diethylene glycol, a dimer of ethylene glycol produced as a side reaction, leads to a decrease in thermal properties, a decrease in melt viscosity, and a decrease in strength, which causes breakage during the spinning / stretching process and causes uneven dyeing during the dyeing process, and above all, there is a problem of significantly increased costs.

[0011] In order to improve these drawbacks, a method for manufacturing a composite yarn obtained by melt composite spinning was proposed, in which the core component is a polyester resin such as polyethylene terephthalate and the sheath component is a flame-retardant polyester resin containing a phosphorus-based compound, as described in Korean Patent Registration Nos. 10-0915458, 10-1283894, and 10-1276098. Although there was some improvement in terms of cost compared to the prior art, a very large amount of phosphorus-based compound must be added during the polymerization of the flame-retardant polyester in the sheath layer to ensure flame retardancy throughout the yarn. Furthermore, many side effects occur in subsequent processes, such as severe deterioration of mechanical properties due to poor dispersibility, rapid deterioration of flame retardancy during softener and auxiliary treatment due to surface transfer of unreacted materials and by-products, poor weaving properties, and uneven dyeing. Additionally, it is evaluated that the flame retardancy is insufficient to meet the recently strengthened flame retardant characteristics, so a new method of improvement has been urgently requested.

[0012] Of particular importance is that while it is desirable to apply various new technologies as described above to ensure flame retardancy, there is a very urgent and critical need for new technologies regarding eco-friendly flame-retardant fibers and fabrics manufactured therefrom that exhibit environmentally friendly flame retardancy while at least satisfying properties such as mechanical properties, UV blocking, and antibacterial properties suitable for curtains and roller screens.

[0013] Meanwhile, Korean Patent Registration No. 10-0666482 (Title of Invention: Polyvinyl Chloride Coated Yarn) discloses a polyvinyl chloride coated yarn formed by using a polyester monofilament yarn as a core and coating the outside with PVC.

[0014] That is, the PVC (polyvinyl chloride) coated yarn (10) is made by using glass fiber or polyester yarn as the core material (11) as shown in Fig. 1 and coating the outside with PVC (12).

[0015] Looking at the manufacturing process, as shown in FIG. 2, raw materials for PVC, color, and flame retardant are fed into a hopper (20), and the raw materials are mixed at a high temperature. At the moment the core material (11) of glass fiber or polyester yarn comes out of the nozzle hole of the nozzle (21), the mixed PVC (12) is coated, and then fed into a water tank (23) for low-temperature cooling. After undergoing a curing process for a certain period of time, it is wound onto a bobbin.

[0016] The PVC coated yarn (10) obtained in this way is used to weave a curtain fabric (30) for a roll blind in the form shown in Fig. 3.

[0018] (Prior Art Literature)

[0019] (Patent Document 0001) Republic of Korea Registered Patent Publication No. 10-0666482 (Registered Jan. 03, 2007)

[0020] (Patent Document 0002) Republic of Korea Registered Patent Publication No. 10-0915458 (Registered Aug. 27, 2009)

[0021] (Patent Document 0003) Republic of Korea Registered Patent Publication No. 10-1041159 (Registered June 7, 2011)

[0022] (Patent Document 0004) Republic of Korea Registered Patent Publication No. 10-1225265 (Registered Jan. 16, 2013)

[0023] (Patent Document 0005) Republic of Korea Registered Patent Publication No. 10-1276098 (Registered June 12, 2013)

[0024] (Patent Document 0006) Republic of Korea Registered Patent Publication No. 10-1283894 (Registered July 3, 2013) The problem to be solved

[0026] However, these conventional PVC coated yarns had several problems, such as the following.

[0027] First, producing flame-retardant curtain fabric for roll screens requires the acquisition of an expensive coating machine to coat PVC onto the polyester core, which is economically burdensome.

[0028] Second, since the core of the polyester yarn is flat in its raw state, it must be twisted into a round shape and then used as the core, so an additional separate twisting process is required.

[0029] Third, when a high-temperature PVC-coated yarn is introduced into a water tank and moves forward along a guide, it is pressed against the guide before it is completely cooled, causing the PVC-coated yarn to become angular or flattened.

[0030] Fourth, even after undergoing the aging process and being wound onto a bobbin, they overlap and become pressed flat, and the PVC-coated yarn becomes wrinkled and wavy.

[0031] Fifth, when weaving with PVC-coated yarn that has been flattened or curled, the weaving condition and thickness are uneven, and after weaving, the size of the space formed between the weft and warp threads varies, which causes the fabric to shrink after heat treatment.

[0032] Sixth, since curtain fabrics produced by the aforementioned process are coated with PVC during yarn production, they generate large amounts of the harmful substance antimony trioxide when used for a long period; consequently, states such as Massachusetts and California impose significant fines.

[0033] Seventh, curtain fabric woven with PVC-coated yarn is thick, so not only must a winding rod with a large outer diameter be used, but the volume also becomes larger than necessary even when wound on the winding rod.

[0034] Eighth, the core of the polyester yarn is coated with PVC, making it very vulnerable to stress.

[0035] Ninth, since the core of the polyester yarn is coated with PVC, it cannot be recycled and must be treated as waste.

[0036] The present invention was devised to solve such problems of the past, and aims to prevent the finished curtain paper for a roll screen from twisting in one direction by continuously passing multiple strands of polyester yarn and RM yarn, which are twisted clockwise (S-twist) or counterclockwise (Z-twist) and used as warp threads, through the gaps between the body strips of the body so that the twist directions of the twisted yarns face opposite directions.

[0037] Another objective of the present invention is to prevent the finished curtain paper for a roll screen from twisting in one direction by repeatedly arranging a plurality of clockwise twisted yarns to pass between each body bar and a plurality of counterclockwise twisted yarns to pass between adjacent body bars.

[0038] Another objective of the present invention is to control the degree of twist during the production of the yarn so that the aesthetic appeal of the finished curtain fabric can be maximized without performing a PVC coating process on the yarn. means of solving the problem

[0040] According to a first embodiment of the present invention for achieving the above objective, the method comprises the steps of: producing a twisted yarn by twisting all 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn in a clockwise or counterclockwise direction; using the twisted yarn twisted clockwise or counterclockwise as the warp, the method of sequentially threading clockwise twisted warp threads into a plurality of heddles and sequentially threading counterclockwise twisted warp threads into adjacent plurality of heddles to thread warp threads into all heddles; preparing for weaving by sequentially passing each clockwise or counterclockwise twisted warp thread through each heddle bar of a heddle; and alternately raising and lowering a heddle frame in which the 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn are twisted clockwise or counterclockwise to form a twisted yarn, using the twisted yarn as the weft, and sequentially passing two strands of counterclockwise twisted weft yarn through the openings of the warp threads, and then pushing the weft yarn to the straight yarn using the heddle. A method for manufacturing a curtain fabric for a roll screen is provided, characterized by comprising the steps of: weaving a curtain fabric, then passing two weft threads twisted counterclockwise through the openings of the warp threads in sequence, and then pushing the weft threads to the straight threads with a body to repeatedly weave the curtain fabric; heat treating the completed curtain fabric at a temperature of 170 to 250°C to fix the RM threads to the polyester threads and integrate them; and a fabric inspection step for inspecting whether there are defects in the curtain fabric, such as breakage, wrinkles, crouching, or sagging or slipping of the warp or weft threads.

[0041] delete

[0042] According to a second embodiment of the present invention, the method comprises the steps of: producing a twisted yarn by twisting all 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn in a clockwise or counterclockwise direction; using the twisted yarn twisted clockwise or counterclockwise as the warp, sequentially threading a clockwise twisted warp onto a plurality of heddles and sequentially threading a counterclockwise twisted warp onto adjacent plurality of heddles to thread warp onto all heddles; preparing for weaving by sequentially passing each clockwise or counterclockwise twisted warp onto each heddle and heddle bar of a heddle; and alternately raising and lowering a heddle frame in which the twisted yarn of 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn twisted clockwise or counterclockwise as the weft, sequentially passing two strands of weft yarn twisted in opposite directions through the openings of the warp, and then pushing the weft yarn to the straight hole with the heddle to make the opaque part a certain A method for manufacturing a curtain fabric for a roll screen is provided, characterized by comprising: a weaving step for an opaque part woven in a width; a weaving step for a light-transmitting part woven in a width narrower than the width of the opaque part while supplying weft yarns of 20 to 100 denier at regular intervals along the transverse direction in succession to the opaque part; a step of obtaining a curtain fabric by repeatedly performing the weaving steps for the opaque part and the light-transmitting part; a heat treatment step of heat-treating the completed curtain fabric at a condition of 170 to 250°C to fix the RM yarn to the polyester yarn and integrate them; and a fabric inspection step of inspecting whether there are defects in the curtain fabric, such as breakage, wrinkles, crouching, or sagging or slipping of the warp or weft yarns.

[0043] delete

[0044] According to a third embodiment of the present invention, a curtain paper for a roll screen is provided, characterized by being woven by a method for manufacturing a curtain paper for a roll screen of the first or second embodiment. Effects of the invention

[0046] The present invention has several advantages over the prior art, as follows.

[0047] First, as the twist direction of adjacent weft or warp threads is arranged in a zigzag pattern during weaving, the curtain fabric is prevented from twisting, thereby allowing for a natural appearance.

[0048] Second, by adjusting the degree of twist in the yarn to increase strength, the durability of the fabric can be improved without coating the yarn with PVC.

[0049] Third, by not coating the polyester with PVC, not only are harmful substances not generated during the production process of the curtain fabric, but the phenomenon of antimony trioxide generation even after long-term use can also be fundamentally resolved.

[0050] Fourth, since recycling through the production of ropes and the like is possible using waste fabric, environmental pollution is prevented. Brief explanation of the drawing

[0052] FIG. 1 is a perspective view showing a conventional PVC-coated yarn. FIG. 2 is a schematic diagram showing a conventional manufacturing facility for PVC-coated yarn. Figure 3 is a photograph showing a conventional flame-retardant curtain paper for a roll screen. FIG. 4 is a configuration diagram showing the arrangement state of twisted yarns applied as warp and weft yarns of the present invention. FIGS. 5A to 5C are configuration diagrams illustrating an embodiment in which a warp threaded through a heddle passes between body strips to weave a curtain paper for a roll screen according to the present invention. FIGS. 6a to 6c are configuration diagrams showing another embodiment in which a warp threaded through a heddle passes between body strips to weave a curtain paper for a roll screen according to the present invention. FIGS. 7a and 7b show a state in which two strands of twisted yarn are woven into one opening in the present invention, FIG. 7a is a diagram showing a state in which adjacent yarns are woven with different twist directions. FIG. 7b is a woven state in which two warp and weft threads twisted clockwise are adjacent to two warp and weft threads twisted counterclockwise and arranged in sequence. FIG. 8 is a flowchart illustrating a first embodiment of the present invention. FIG. 9 is a flowchart illustrating a second embodiment of the present invention. FIG. 10 is a flowchart illustrating a third embodiment of the present invention. FIG. 11 is a flowchart illustrating a fourth embodiment of the present invention. FIGS. 12a and 12b are photographs showing a roll screen woven according to the present invention. Specific details for implementing the invention

[0053] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. It should be noted that the drawings are schematic and not drawn to scale. The relative dimensions and proportions of parts in the drawings are exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are merely illustrative and not limiting. Also, the same reference numerals are used to denote similar features for identical structures, elements, or parts appearing in two or more drawings.

[0054] FIG. 4 is a configuration diagram showing the arrangement state of the twisted yarns applied as warp and weft yarns of the present invention, FIG. 5a to 5c are configuration diagrams showing an example of a state in which a warp threaded through a heddle passes between a body bar and a body bar to weave a curtain fabric for a roll screen of the present invention, FIG. 8 is a flowchart showing a first embodiment of the present invention, wherein the present invention requires that twisted yarns (50) used as warp yarns (70) and weft yarns (71) must be produced before weaving a curtain fabric for a roll screen.

[0055] In the present invention, the twisted yarn (50) used as the warp (70) and weft (71) is produced by arranging all of the 3 to 30 strands of polyester yarn (51) and 2 to 20 strands of RM yarn (52) neatly as shown in FIG. 4 and twisting them clockwise (Z-twist) or counterclockwise (S-twist) (S100)(100').

[0056] As described above, the yarn (50) produced is preferably 300 to 3000 denier, and more preferably 450 to 1000 denier.

[0057] For example, if the yarn (50) is twisted clockwise or counterclockwise using 3 strands of polyester yarn (51) and 2 strands of RM yarn (52) each of which are 150 denier, the thickness of the yarn (50) becomes 750 denier, and if the yarn (50) is twisted clockwise or counterclockwise using 10 strands of polyester yarn (51) and 5 strands of RM yarn (52) each of which are 50 denier, the thickness of the yarn (50) becomes 750 denier, and if the yarn (50) is twisted clockwise or counterclockwise using 30 strands of polyester yarn (51) and 20 strands of RM yarn (52) each of which are 20 denier, the thickness of the yarn (50) becomes 1000 denier.

[0058] In one embodiment of the present invention, it is explained that 2 to 20 strands of RM yarn (52) are twisted clockwise or counterclockwise with 3 to 30 strands of polyester yarn (51) to produce a twisted yarn (50), but it is understandable that, if necessary, the polyester yarn (51) can be replaced with flame-retardant yarn to produce a curtain fabric (100) having a flame-retardant function.

[0059] That is, the above polyester yarn (51) may be produced by flame-retardant treatment of the polyester yarn, or the polyester yarn may be produced and flame-retardant treated as a subsequent process to have a flame-retardant function.

[0060] As mentioned above, it is understandable that the thickness and number of strands of the yarn (50) can be appropriately selected and applied depending on the application of the curtain paper.

[0061] In addition, when twisting multiple strands of yarn (50) in a clockwise or counterclockwise direction, it is preferable to set the degree of twist of the yarn (50) to 30 to 700™ (twist ratio), and more preferably to 80 to 400™ (twist ratio).

[0062] The larger the twist ratio of the above yarn (50), the more prominent the yarn (50) that is exposed to the outside becomes, so the effect of improving aesthetics can also be expected.

[0063] In addition, it is desirable to weave the curtain fabric (100) so that its porosity (transmittance) is maintained at about 0 to 10%, and more preferably at 1 to 5%.

[0064] After producing a twisted yarn (50) by twisting multiple strands of polyester yarn (51) and RM yarn (52) in a clockwise or counterclockwise direction using the above-described process, the produced twisted yarn (50) is formed into warp threads (70) and threaded sequentially onto a plurality of warp threads (80) installed in a warp frame (not shown). As shown in FIG. 5a, which illustrates an embodiment of the present invention, after threading a clockwise twisted warp thread (61)(70) onto the first warp thread (80), a counterclockwise twisted warp thread (62)(70) is threaded onto the next warp thread (80).

[0065] That is, the warp threads (61)(62)(70) are threaded in order so that the twisted directions are arranged opposite to each other on adjacent warp threads (80) (S200).

[0066] However, as shown in FIG. 6a of the second embodiment, the yarn twisted clockwise or counterclockwise is used as the warp (61)(70), and two strands of clockwise twisted warp (61)(70) are threaded sequentially through two heddles (80), and two strands of counterclockwise twisted warp (62)(70) are threaded sequentially through two adjacent heddles (80) (S200').

[0067] In the second embodiment of the present invention, the same direction twisted warp threads (61) (70) are described as being inserted into two warp threads (80) in sequence, but if necessary, the same direction twisted warp threads (61) (70) may be inserted into six warp threads (80), and then the opposite direction twisted warp threads (62) (70) may be inserted into the next six warp threads (80) in sequence.

[0068] In the first and second embodiments of the present invention, when the above-mentioned incline (61)(62)(70) are inserted into the end beam (80) in sequence, the incline (61)(62)(70) may be inserted into all end beams (80) in sequence as in FIG. 5a and FIG. 6a, but the operation of inserting the incline (61)(62)(70) into each of two end beams (80) and then inserting the incline into every other two end beams (80) may also be repeated as in FIG. 5b and FIG. 6b.

[0069] This is intended to reduce the phenomenon where the woven density becomes excessively dense.

[0070] In the first embodiment of the present invention, after threading the warp threads (61)(62)(70) adjacent to the warp thread (80) of the warp thread frame in order so that their twist directions are arranged in opposite directions, the warp threads (61)(70) on one side are twisted clockwise, and the adjacent warp threads (62)(70) are twisted counterclockwise. Each of the warp threads (61)(62)(70) is then passed through the body (81) and each body thread (81a) of the body (81) in order as shown in FIG. 5a to prepare for weaving (S300).

[0071] However, in the second embodiment, after threading the warp threads (61)(62)(70) with opposite twist directions into each of the two warp threads (80) of the warp thread frame in order, the warp threads (61)(62)(70) are passed through each of the body threads (81a) and body threads of the body (81) in order as in FIG. 6a to prepare for weaving (S300').

[0072] That is, after two warp threads (61)(70) that are twisted clockwise and inserted into each heddle (80) are inserted between each body strip (81a) and body strip, two warp threads (62)(70) that are twisted counterclockwise and inserted into adjacent heddles (80) are passed between each of the next body strips (81a) and body strips to prepare for weaving.

[0073] Meanwhile, warp threads (61)(62)(70) twisted in opposite directions are threaded in sequence on the heddle (80), and then two warp threads (61)(62)(70) are passed sequentially between the body strips (81a) and each body strip of the body (81) as shown in FIG. 5c, or two warp threads (61) twisted in the same or opposite direction are threaded into the heddle (80), and then two warp threads are formed into a pair and passed between the body strips (81a) and each body strip as shown in FIG. 6c to prepare for weaving.

[0074] In this way, after passing the warp threads (61)(62)(70) inserted into each warp thread (80) through the body ribs (81a) of the body (81), the warp thread frame is alternately raised and lowered, and the twisted yarn (71) made by twisting 3 to 30 strands of polyester yarn (51) and 2 to 20 strands of RM yarn (52) in a clockwise or counterclockwise direction is used as the weft yarn (71), and the weft yarn (71) twisted in opposite directions is alternately passed through the openings of the warp threads (70), and then the weft yarn (71) is pushed to the cloth fell with the body (81), thereby weaving the curtain fabric (100) as shown in FIG. 12a (S400).

[0075] Meanwhile, in the second embodiment, warp threads (61)(62)(70) with opposite twist directions are threaded into each of two or more warp threads (80), and then warp threads (61)(62)(70) twisted in the same direction are passed sequentially through the body ribs (81a) and body ribs of the body (81). After that, while alternately raising and lowering the warp thread frame, two strands of twisted yarn (71) consisting of 3 to 30 strands of polyester yarn (51) and 2 to 20 strands of RM yarn (52) twisted clockwise are passed through the openings of the warp threads (61)(62)(70). Then, the weft threads (71) are pushed through the body (81) to the cloth fell to weave, and then two strands of weft threads (62)(71) twisted counterclockwise are passed through the openings of the warp threads (61)(62)(70). After passing the weft thread (71) through the body (81), the step of pushing the weft thread (71) to the cloth fell is repeated to weave the curtain fabric (S400').

[0076] At this time, if the weft yarn (71) is too thin, less than 300 denier, the light blocking efficiency and the quality of the product will be reduced after weaving is completed, and conversely, if it is thicker than 3000 denier, it will give a rough impression, so the range of choices is very important.

[0077] After weaving the curtain fabric using the above method, it is more desirable to perform an additional step of antibacterial and anti-odor treatment to prevent mold from forming on the curtain fabric (S500)(S500').

[0078] However, it is understandable that the antibacterial and deodorizing treatment steps may be omitted depending on the intended use of the curtain fabric.

[0079] After the weaving of the above curtain fabric (100) is completed, the curtain fabric (100) undergoes a heat treatment step in which the RM yarn (52) is fixed to the polyester yarn (51) and integrated by heat treatment at a temperature of 170 to 250°C (S600)(S600').

[0080] After the heat treatment of the above curtain fabric is completed, a coating process may be further performed to form a blackout layer (not shown) on the surface or both sides of the curtain fabric depending on the application (S700)(S700').

[0081] Meanwhile, it is understandable that the finished curtain fabric (100) may be flame-retardant treated as a subsequent process as needed.

[0082] After the production of the curtain fabric is completed through the heat treatment process as described above, a fabric inspection is performed to check for defects in the curtain fabric (100), such as breakage, wrinkles, crocking, or sagging or slipping of the warp threads (70) or weft threads (71). This fabric inspection is generally performed visually by a skilled worker (S800)(S800').

[0083] What has been explained so far is a method for manufacturing a curtain fabric consisting only of opaque parts, as shown in Fig. 12a.

[0084] FIG. 10 is a flowchart showing a third embodiment of the present invention and FIG. 11 is a flowchart showing a fourth embodiment of the present invention. Since the third and fourth embodiments of the present invention are composed of an opaque part (91) woven with a certain width (t) by the same method as the first and second embodiments and a light-transmitting part (92) woven with a width (t') narrower than the opaque part, the part identical to the steps (S100)(S100') ~ (S300)(S300') of the first and second embodiments is omitted from the description and is referred to as the steps (S1000)(S1000') ~ (S3000)(S3000').

[0085] After weaving the opaque part (91) to a certain width (t) by the same method as in the first and second embodiments of the present invention (S4000)(S4000'), the light-transmitting part (92) is woven to a width (t') narrower than the width (t) of the opaque part (91) by supplying the weft yarn (71) of the light-transmitting part (92) to the opaque part (91) to a certain width (t) at regular intervals along the horizontal direction with a denier of 20 to 100 (S5000)(S5000').

[0086] In this way, the curtain fabric (100)(100') is repeatedly woven with a width (t') narrower than the opaque part (91) in succession to the opaque part (91) woven with a certain width (t) to complete the weaving of the curtain fabric (S6000)(S6000').

[0087] The process after completing the weaving of the above curtain fabric (100)(100') is the same as in the first and second embodiments, so a detailed description thereof is omitted, and each step is indicated as (S7000)(S7000') ~ (S10000)(S10000').

[0088] In the third and fourth embodiments of the present invention as described above, the antibacterial and anti-odor treatment steps and the blackout layer coating process may be omitted as needed, just as in the first and second embodiments.

[0089] As described above, for convenience, the present invention has been described in the order of the warp (70) and weft (71) twisted clockwise and the twisted yarn (61) twisted counterclockwise; however, it is understandable that weaving can also be performed by supplying the twisted yarn (62) twisted counterclockwise and the twisted yarn (61) twisted clockwise in the opposite order.

[0090] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing the technical concept or essential features.

[0091] Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting, and the scope of the invention as described in the above detailed description is defined by the claims set forth below, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the invention. Explanation of the symbols

[0093] 50: Twisted yarn 51: Polyester yarn 52: RM yarn 61: Clockwise twisted yarn 62: Counterclockwise twisted yarn 70: Warp 71: Weft 80: Heddle 81: Reed 81a: Reed rib 91: Impermeable area 92: Translucent area 100, 100': Curtain fabric

Claims

Claim 1 delete Claim 2 A step of producing twisted yarn by twisting all 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn in a clockwise or counterclockwise direction; a step of threading warp yarns twisted clockwise into multiple heddles sequentially using the clockwise or counterclockwise twisted yarn as the warp, and then threading warp yarns twisted counterclockwise into adjacent heddles sequentially, thereby threading warp yarns into all heddles; a step of preparing for weaving by passing each clockwise or counterclockwise twisted warp yarn sequentially through the heddle barbs of the reed; and a step of alternately raising and lowering the heddle frame equipped with the aforementioned multiple heddles, using the twisted yarn produced by twisting 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn clockwise or counterclockwise as the weft yarn, passing two strands of counterclockwise twisted weft yarn sequentially through the openings of the warp yarns, pushing the weft yarns to the straight hole with the reed to weave the curtain fabric, and then, next, half A method for manufacturing curtain fabric for a roll screen, characterized by comprising: a step of repeatedly weaving a curtain fabric by passing two weft threads twisted clockwise through the openings of the warp threads in sequence and then pushing the weft threads to the straight hole with a body; a heat treatment step of heat-treating the completed curtain fabric at a temperature of 170 to 250°C to fix the RM threads to the polyester threads and integrate them; and a fabric inspection step of inspecting whether there are defects in the curtain fabric, such as breakage, wrinkles, crouching, or sagging or slipping of the warp or weft threads. Claim 3 delete Claim 4 A step of producing a twisted yarn by twisting all 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn in a clockwise or counterclockwise direction; a step of threading warp yarns twisted clockwise into multiple heddles sequentially using the clockwise or counterclockwise twisted yarn as the warp, and then threading warp yarns twisted counterclockwise into adjacent heddles sequentially, thereby threading warp yarns into all heddles; a step of preparing for weaving by sequentially passing each clockwise or counterclockwise twisted warp yarn through each heddle bar of the reed; and an opaque part in which the 3 to 30 strands of polyester yarn and 2 to 20 strands of RM yarn twisted clockwise or counterclockwise are used as the twisted yarn, and two strands of weft yarn twisted in opposite directions are sequentially passed through the openings of the warp yarns, and then the weft yarns are pushed to the straight hole by the reed to weave the opaque part to a certain width. A method for manufacturing a curtain fabric for a roll screen, characterized by comprising: a weaving step; a light-transmitting part weaving step in which a light-transmitting part is woven with a width narrower than the width of the opaque part while supplying weft yarns of 20 to 100 denier at regular intervals along the transverse direction in succession to the opaque part; a step of obtaining a curtain fabric by repeatedly performing the opaque part and light-transmitting part weaving steps; a heat treatment step in which the completed curtain fabric is heat-treated under conditions of 170 to 250°C to fix and integrate the RM yarns to the polyester yarns; and a fabric inspection step in which the curtain fabric is inspected for defects such as breakage, wrinkles, crouching, or sagging or slipping of the warp or weft yarns. Claim 5 delete Claim 6 delete Claim 7 A method for manufacturing a curtain paper for a roll screen according to claim 2 or claim 4, characterized in that warp threads twisted in the same direction are inserted in a zigzag pattern on 2 to 6 warp threads, and then each warp thread is inserted so as to pass through each body rib and body rib in sequence. Claim 8 delete Claim 9 delete Claim 10 delete Claim 11 delete Claim 12 delete Claim 13 delete Claim 14 delete Claim 15 delete Claim 16 A curtain paper for a roll screen, characterized by being woven by the method for manufacturing a curtain paper for a roll screen according to claim 2 or claim 4.

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