JP7216970B2 - insulated curtains - Google Patents

Description

The present invention relates to the field of curtains, and more particularly to thermal insulation curtains.

Curtains, as a part of household goods, with the rise of people's material living standards and the ever-changing consumption values, the role of curtains has gradually expanded from the original decoration and privacy protection to various functions. and has been gradually recognized. Curtains can achieve specific functions through improvements in knitting processes and materials. Here, the thermal insulation curtain reduces high-temperature radiation from the outside to the room in summer, increases indoor comfort, and has the role of keeping warm indoors in winter, effectively reducing carbon dioxide emission. It is an eco-lace curtain that can be used.

Conventionally, a heat insulating curtain can achieve a heat insulating effect by coating the curtain cloth. For example, in CN201710777276.4, CN104146580, a thermal insulation finish was applied to the surface of the fabric layer by the method of surface functional coating to achieve the function of thermal insulation. In order to ensure good compatibility between the heat insulating finish and the fabric, strict requirements are placed on the ingredients of the finish. The paint should reach a certain thickness. The wet film is pressed or spun against the coated curtain, and a rubber roller is used in pressing. Multiple iterations of drying and washing are required to dry the curtain after pressing or spin dewatering and to remove excess paint that is not completely deposited on the material. The process of treating the entire curtain fabric to achieve a heat insulating effect is complicated, the processing amount is large, and the multiple washings waste water and pollute the environment, and the harmful gas is easily volatilized during use. , causing a certain amount of damage to the health of the human body.

CN201080051571.8 discloses an insulating composite fabric comprising an inner fabric layer, an outer fabric layer, and an insulating filler fabric surrounded by the inner fabric layer and said outer fabric layer. The insulating filler fabric layer is a textile fabric having a raised surface on at least one side of the fabric. The insulating filler fabric layer comprises a double-faced knit fabric having a ply terry sinker loop knit construction. Said double-sided knitted fabric has a technical face with a raised or fuzzy side and a technical back with a cut loop or velor side. This heat-insulating cloth layer, by filling the heat-insulating layer, makes the cloth have a heat-insulating effect, increases the thickness of the cloth, and also increases the production cost.

Chinese Patent Application No. 201710777276.4 Chinese Patent Publication No. CN104146580 Chinese Patent Application No. 201080051571.8

The present invention provides a thermal insulation curtain, in which thermal insulation yarn is woven into the curtain by a warp knitting process, the resulting curtain has excellent thermal insulation effect and does not require post-treatment with thermal insulation finish. In addition, in the knitting and weaving process, the amount of heat-insulating yarn is the least, but the best heat-insulating effect is achieved, which reduces the production cost of the heat-insulating curtain, improves the cost performance of the curtain, and promotes the popularization and application of the heat-insulating curtain. have important significance.

The present invention achieves the above objects by the following technical solutions.

A thermal insulation curtain knitted and woven by a warp knitting process, which uses one or more sets of parallel yarns to feed all the knitting needles of a knitting machine in the warp direction, and at the same time to form a loop Refers to the process step of forming to form a fabric. The loops formed are aligned in the warp direction and adjacent yarns are socketed together. Each yarn is controlled by a single knitting needle during the socketing process. Yarns are generally divided into warp chain stitch yarns, weft weft insertion yarns and jacquard yarns. The heat-insulating curtain in the present application is knitted and woven with at least a chain stitch yarn, a weft insertion yarn, and a heat-insulating yarn. The chain stitch yarn is knitted and woven so as to form the chain stitch structure of the woven fabric, and the feature is that each loop wale is formed by the same warp yarn, and each warp yarn is inlaid on the same knitting needle all the time during knitting and weaving. . In the chain stitch structure, each wale is not connected to each other, the stretchability in the longitudinal direction is small, and it is generally knitted and woven so that it is combined with other structures to form a needle fabric, and the stretchability in the longitudinal direction can be reduced. can.

The weft-inserted yarn is knitted and woven along the weft direction of the curtain, and two adjacent chain stitch structures are fixedly connected after forming a loop with the weft-inserted yarn to form a weft-inserted inlay of the curtain, A weft-inserted inlay is installed on each of the front and back surfaces of the curtain. The heat insulating yarn is installed along the warp direction between two adjacent chain stitch structures, the heat insulating yarn is parallel to the chain stitch structure, and the heat insulating yarn is inserted in the weft on both the front and back sides of the curtain. Interposed between inlays. In other words, unlike other yarns in the normal warp knitting process, the installation of the insulating yarn does not form a loop with any yarn, and is fixed by the yarns installed in the weft direction on both the front and back sides, so that the insulation The yarn may be interposed between the weft-inserted inlays on both the front and back sides of the curtain, or the heat-insulating yarn may be interposed between the jacquard yarns on both the front and back sides of the curtain. A weft-inserted inlay may be used and the other side may be a jacquard yarn. By placing weft threads on both the front and back sides of the curtain, the heat insulating threads are fixed in the warp direction of the curtain. Since the insulating yarn is not fixedly connected to the chain knitting yarn, the weft insertion yarn or the jacquard yarn, the insulating yarn can be drawn out from the curtain alone, which is equivalent to laying it on the fabric structure, reducing the amount of yarn used. can do. This is because the threads are tied together during the loop forming process, increasing the amount used.

Alternatively, the chain stitch structure is installed in the vertical direction in the fabric, the heat insulating yarn interposed between the adjacent chain stitch structures is installed linearly in the warp direction of the curtain fabric, and both the front and back sides of the curtain fabric are in the weft direction. Insertion yarns are installed to interpose the insulating yarns between the weft insertion inlays on both the front and back sides.

Alternatively, the chain stitch is laid curvilinearly in the fabric, the insulating yarn conforms to the curvilinear shape of the chain stitch, and the insulating yarn is laid between adjacent chain stitches. Weft-direction weft-inserted yarns are provided on both the front and back surfaces of the curtain fabric, and heat-insulating yarns are interposed between the weft-inserted inlays on both the front and back surfaces.

The warp knit fabric has a mesh between adjacent chain stitch yarns, and preferably one or more insulating yarns are placed between any two adjacent chain stitch structures. This corresponds to covering all the mesh with insulating yarns, maximizing the surface area of the fabric covered with insulating yarns. In this case, the surface of the curtain fabric other than the loops is covered with heat insulating yarns, and the heat insulating effect is the best.

Preferably, multiple insulating yarns may be installed between two adjacent chain stitches, and when multiple insulating yarns are installed, the mesh is better covered and has a better thermal insulation effect. be able to.

Alternatively, the insulating yarns may be spaced between adjacent chain stitches. According to different requirements for the heat insulation effect, the degree of coarseness and fineness of the heat insulation thread can be set. For example, a single insulating thread may be provided at intervals of two chain stitches.

The present application provides a method for knitting and weaving insulating curtains, which can use a jacquard or tricot warp knitting machine, where the jacquard warp knitting machine comprises at least four reeds, one of which is a chain stitch structure. One is a front reed for knitting and weaving the front weft insertion yarn along the weft direction, and the other is the back weft insertion yarn. One is a plain reed for feeding the insulating yarn along the warp direction between adjacent chain stitch yarns. In the case of a tricot warp knitting machine, it comprises at least three reeds, one of which knits and weaves along the longitudinal direction to form a chain stitch structure and is movable in the weft direction to knit and weave surface weft insertion yarns. One is a back reed for knitting and weaving the weft insertion yarn on the back side along the weft direction, and one is a back reed for knitting and weaving the insulating yarn between adjacent chain stitch structures. It is a plain reed for laying along the warp direction.

In the knitting and weaving process, chain stitch yarn, weft inlaid yarn or jacquard yarn are common yarns, and after knitting and weaving, the yarns are looped and bound together, and the requirements for yarn warping are not high. Warping involves pulling out a desired yarn from a bobbin, applying a constant pretension, passing through several yarn dividing knitting needles, and winding the yarn in parallel on the warp axis by the action of the winding power of the warp axis. means to turn The warping of the insulating yarn is different from that, because it is a DTY yarn, it has low elasticity, and during warping, the tension of each yarn is the same, the elongation after pre-stretching is the same, and after shrinking, it is on the warp axis. Parallel winding is required. The warp molding should be moderately stiff and the oil on the fibers should not overflow. It is required that the tension and length of the insulation thread on the warp axis of the same socket are the same. The elongation deviation of the warped warp heat insulation yarn should not exceed 3‰, otherwise the fabric surface will be uneven or yarn breakage will occur. The warping of insulating yarns is therefore more demanding on equipment and processes.

To prevent the unwound yarn from being continuously wound along with the bobbin by pulling out the yarn at a linear speed higher than the unwinding speed after the insulating yarn is unwound from the bobbin in the warping process of the insulating yarn. Whether or not the prestretch rate is selected appropriately depends on whether or not the insulating thread is smoothly unwound from the bobbin and continues to be wound as the bobbin rotates. If the pre-stretch rate is too large, the heat-insulating yarn will not be pulled out smoothly from the bobbin and will not continue to be wound as the bobbin rotates, but yarn breakage will likely occur. Conversely, if the pre-stretching ratio is too small, the heat-insulating yarn is difficult to pull out from the bobbin, and is wound as the bobbin rotates, increasing yarn breakage, which is disadvantageous in the progress of warping. Through multiple tests, in the present application, the pre-stretch rate of the insulating yarn was set to 8.0 to 10.0%.

The yarn after warping is knitted and woven by a warp knitting machine so that it becomes a fabric, and the warp knitting machine is mainly composed of a knitting and weaving means and a winding means, and the knitting and weaving means turns the yarn into a fabric after loop formation. The action of the winding means is to wind the fabric emerging from the knitting and weaving area at a predetermined speed into a fabric roll.

The cloth winding roller is left on the driving winding roller and the driven winding roller, and when winding the cloth, the driving device rotates the driving winding roller, the driving winding roller rotates the driven winding roller, and the cloth winding roller rotates the driven winding roller. are left on the drive take-up roller and the driven take-up roller, so they rotate indirectly. During the cloth winding process, the rotation speed of the cloth winding roller is constant, so the tension of the cloth cannot be adjusted. Ordinary warp-knitted fabrics have a chain-stitch structure that forms loops, which corresponds to yarns exhibiting a curved shape, has a certain degree of extensibility, and exerts a small tension on the cloth winding roller. Since the insulating yarn is laid inside the fabric, it is in a tensile state and has very little elasticity. more tension. During the rotation of the winding roller, the tension on the winding roller will obviously increase, which will easily cause the bending of the axial centerline of the winding roller and the deformation of the fabric pattern, which will affect the quality of the product. Therefore, generally, the cloth winding roller applicable to ordinary warp knitted fabrics cannot be applied to the production process of the fabric of the present application. It is necessary to adapt to the stress in the process of winding the insulation yarn by increasing the rigidity of the equipment. are highly demanded.

In the production process of DTY yarn, generally, POY is spun using PET chips, and then elasticized to produce DTY. The _TiO2 is dispersed in the PET chips, and the more uniform the _TiO2 distribution in the chips, the easier the subsequent spinning process. The higher the content of _TiO2 , the better the mattness and the better the insulation effect of the yarn. However, when the content of _TiO2 is high, it is very difficult to achieve a very uniform distribution in the fiber, because _TiO2 is a solid pellet, insoluble in water, and the pellets are fine. In this case, the homogeneity of the distribution of the amorphous and crystalline regions of POY is greatly affected, and the subsequent spinning and elasticity-imparting processes are greatly affected. It is a detrimental factor, which leads to local crystallinity and orientation non-uniformity in fiber tensioning, twisting and deformation, leading to differential dyeing in the longitudinal portion of the DTY yarn, forming defects.

The present application discloses a thermal insulation yarn with improved matting and spinnability by adding 0.1%-0.5% graphene oxide with nano-TiO ₂ as a matting agent in PET chips.

The principle of the heat insulation curtain is mainly the following two points. One is to reduce the intensity by absorbing excess sunlight, and the other is to achieve thermal insulation by reflecting most of the sunlight. Nano-titanium dioxide is a white, fluffy powder that has a strong effect of blocking ultraviolet rays, and has good dispersibility and weather resistance. Yarns treated with titanium dioxide can effectively insulate. The loading amount of titanium dioxide in the yarn has a very important effect on the thermal insulation performance. Affects the effective time of heat insulation, if the tightness is low, the heat insulation effect of the curtain will gradually decrease as the use time increases. Therefore, the development of yarns with a high loading of titanium dioxide and high stiffness is of great value. Titanium dioxide can be supported on yarn by adding nano-titanium dioxide in the process of chemical fiber spinning or spinning, but this method tends to cause uneven dispersion of nanoparticles and clog the spinneret, and at the same time, Yarn's mechanical performance tends to deteriorate. By adding nano-titanium dioxide and graphene oxide to the PET chip, the present application solves the problem that the nano-titanium dioxide particles tend to aggregate, are difficult to disperse, and have poor bond tightness with the yarn matrix. Graphene oxide has very strong hydrophilicity, is highly dispersible in water, and provides a large specific surface area to effectively disperse nano-titanium dioxide and prevent agglomeration. In addition, graphene oxide has many oxygen-containing functional groups, such as hydroxyl group (-OH), carboxyl group (-COOH), carbonyl group (C-O), and epoxides. Graphene has very strong plasticity, which can enhance the adsorption force in nano titanium dioxide threads.

Compared with the prior art, the present invention has the following beneficial effects.
1. According to the heat insulating curtain of the present invention, the heat insulating curtain has a heat insulating effect by a warp knitting process and is knitted and woven by chain knitting yarn, weft insertion yarn, and heat insulating yarn, wherein the heat insulating yarn is chain knitting yarn and Neither of the weft-inserted yarns are fixedly connected, they are simply laid between the weft-inserted inlays on both sides of the curtain, and the heat-insulating yarns are laid so that they do not form loops, so the knitting needles of the warp knitting structure In advancing and retreating, the surface area covered with the insulating yarn is the largest due to the insulating yarn used in the smallest amount, and the best insulating effect can be achieved by covering the mesh of the warp knitted fabric with the insulating yarn.
2. According to the heat insulating curtain of the present invention, in the installation method of the heat insulating yarn, the heat insulating yarn is not fixedly connected to other yarns, so that the heat insulating yarn can be pulled out from the curtain with force along the warp direction, and the heat insulating The yarn is installed along the warp direction between two adjacent chain stitch structures, and is interposed between the weft-inserted inlays on both the front and back sides along the weft direction, so that it can be firmly fixed to the middle layer of the curtain. , and thread slipping does not occur. On the other hand, by setting the thickness of the weft insertion inlay and adjusting the thickness of the curtain fabric, different gram weight fabrics can be obtained, and the curtain has the effect of heat insulation, while still being light, thin and breathable. good.
3. Different installation methods of the insulation yarns can achieve different insulation effects, and if the insulation yarns are installed in any two adjacent chain stitches, the surface area covered by the insulation yarns on the curtain body is It is the largest and has a good heat insulation effect. Depending on the usage, the insulation threads can be spaced apart to reduce the cost of the curtain in situations where insulation requirements are not high.
4. According to the heat insulation yarn of the present invention, by adding graphene oxide to nano titanium dioxide, the amount of nano titanium dioxide supported in the yarn is increased, the hardness is increased, the heat insulation curtain effect is improved, and the service life is improved. becomes longer.
5. According to the heat-insulating curtain of the present invention, the heat-insulating yarns are surrounded by the yarns on both the front and back sides, so that the heat-insulating yarns are less worn and the heat-insulating effect of the curtain can be effectively extended.

FIG. 1 is a structural schematic diagram of the insulation effect detection box of the insulation curtain of the present invention. FIG. 2 is a structural diagram of a common warp-knitted fabric. FIG. 3 is the structural diagram of the thermal insulation curtain fabric of the present invention. 4 is a wrapping cord diagram of the chain stitch yarn of the fabric of FIG. 3. FIG. FIG. 5 is a wrapping chord diagram in which the chain stitch structure is a curved line.

As shown in FIG. 1, the heat insulation effect of the heat insulation curtain is measured in the following detection box 1. For convenience of observation, the detection box is made of transparent material, and the detection boxes are symmetrical left box body 11 and right box body. 12, the fabric 2 to be detected is interposed between the left and right boxes, and the periphery of the fabric is placed between the left and right boxes in order to prevent the detection effect from being affected by the exposure of the gap. completely intervened. A temperature measuring device 3 is installed in each of the left and right boxes, and an infrared light lamp is installed as a heating device 4 in the left box to record the temperature of the left and right boxes at room temperature, and then the left box is placed. It was heated to 40-45°C and maintained for 30 minutes, and the temperature in the right box was observed.

Example 1
FIG. 2 is a structural diagram of an ordinary warp knitted fabric (No. 1 fabric). In the figure, the chain stitch structure 5 is set in the vertical direction, and the weft insertion yarn 6 is set on both the front and back sides of the fabric. , and no intervening insulating yarns were placed between adjacent chain stitches, which resulted in fabrics knitted by the warp knitting process to be almost mesh. The fabric of FIG. 2 was woven with regular polyester yarns and had a fabric gram weight of 100 grams/square meter.

FIG. 3 is a diagram of the structure of the heat insulating curtain material, in which the heat insulating yarn 7 is laid between the chain stitch structures to form a No. 1 fabric. 2 fabrics are obtained, the chain stitch structure is linear, FIG. 4 is a wrapping code diagram (0-1/1-0//) of the chain stitch yarn, and FIG. A single insulating yarn is inserted directly between two adjacent chain stitches. The open chain stitch may be provided in the closed chain stitch, and the wrapping code of the closed chain stitch is 0-1//. Similarly, a single insulating yarn is inserted directly between two adjacent closed chain stitches.

In the figure, a heat-insulating yarn is laid between adjacent chain stitch structures, and here, after loop formation, the chain stitch yarn has a curved shape to form a chain stitch structure. The insulating yarn is a DTY yarn, which has low elasticity, and in the knitting and weaving process, the fluffy surface can increase the surface area of the yarn. The weft-insertion yarns are installed in the weft direction, and the insulating yarns are fixed between the weft-insertion yarns on both the front and back sides. By way of comparison, withdrawing the insulating yarn in region A can expose a large mesh. Apparently, most of the mesh of the fabric body is covered with heat-insulating yarns, which greatly reduces the surface area of the hollow part and achieves heat-insulating effect. In the fabric of FIG. 3, if the insulating yarn is not extracted, the amount of insulating yarn used is 10% of the total weight of the fabric and the gram weight is 100 grams/square meter. That is, in one square meter of fabric, 10 grams of insulating yarn and 90 grams of normal yarn, the total mass of the fabric is 100 grams.

No. 1 fabric and No. The gram weight of the two doughs is the same. Adiabatic effect measurements are made in the detection box. First, No. 1 dough is interposed and fixed between the left box and the right box, and at this time, the temperature measuring instruments in the left and right boxes indicate 23°C. Heating is performed by turning on the infrared light lamp in the left box, heating the left box to 40 ° C., observing the temperature measurement device on the right side, and as the temperature of the left box rises, the right box The temperature in the body gradually increased, and when the temperature in the left box reached 40°C, the temperature in the right box was 37°C. The temperature reached 39°C.

Similarly, no. 2 The dough was interposed and fixed between the left box and the right box, and at this time, the temperature measuring instruments in the left and right boxes indicated 23°C. Heating is performed by turning on the infrared light lamp in the left box, heating the left box to 40 ° C., observing the temperature measurement device on the right side, and as the temperature of the left box rises, the right box The temperature in the body gradually increased, and when the temperature in the left box reached 40°C, the temperature in the right box was 29°C. The temperature reached 31°C.

At the same gram weight, it was found that the ordinary warp knitted fabric has a large mesh and therefore poor thermal insulation. The heat insulating effect of the fabric on which the heat insulating yarn was laid was greatly improved, and the heat insulating effect was 25% or more.

Example 2
In this embodiment, No. 2. The amount of insulation yarn used in the fabric is reduced by half, that is, the first row is provided with insulation yarn, the second row is not provided, and the third row is provided with insulation yarn, sequentially spaced apart. Installed, No. 3 doughs were obtained. Using the detection method in Example 1, No. 3. Measure the heat insulation effect of the fabric, when the temperature in the left box reaches 40 ° C, and after maintaining it for 30 minutes, the temperature in the right box is 35 ° C, which indicates the amount of heat insulating yarn used It was found that with the decrease of , the insulating effect decreased correspondingly.

Similarly, in the longitudinal rows, the installation of insulation yarns and the absence of insulation yarns may be combined arbitrarily to reach different insulation effects.

Example 3
In this example, a heat-insulating yarn was used as the chain stitch yarn instead of the normal yarn, the weft insertion yarn was a normal yarn, no heat-insulating yarn was laid between the adjacent chain stitch structures, and the No. 4 dough was obtained. Since the chain stitch structure is loop-forming, the amount of insulating yarn used was obviously increased, and the fabric was knitted and woven with a gram weight of 100 grams/m2, and the amount of insulating yarn used was 35 grams. Using the detection method in Example 1, No. 4. The heat insulation effect of the fabric was measured, and when the temperature in the left box reached 40°C, the temperature in the right box was 36°C. It turned out that it is about 3.5 times as much as laying. The cost of the fabric increases due to the high value of the insulating yarn. At the same time, due to the presence of the mesh, the heat insulating effect is inferior to that of laying. On the other hand, when the insulating yarn is used as the chain stitch yarn, the chain stitch yarn forms a loop to form a chain stitch structure, so that the chain stitch yarn is in tension all the time. This corresponds to a smaller surface area of the fabric covered by the insulating thread. However, if the insulation yarn is inserted directly, after knitting and weaving, the insulation yarn has no tension in the warp direction and is fluffy on the surface of the insulation yarn, which can increase the surface area.

Example 4
In this example, a heat-insulating yarn was used as a weft-insertion yarn instead of a normal yarn, the chain stitch yarn was a normal yarn, no heat-insulating yarn was laid between adjacent chain stitch structures, and No. 5 dough was obtained. Since the weft-inserted yarn moves in the weft direction to form a weft-inserted inlay, the amount of insulation yarn used is also obviously increased, and the fabric with a gram weight of 100 grams / square meter is obtained by knitting and weaving, and the use of insulation yarn The amount was 30-35 grams. Using the detection method in Example 1, No. 5 The heat insulation effect of the fabric was measured, and when the temperature in the left box reached 40 ° C, the temperature in the right box was 33 ° C, which clearly increased the amount of heat insulating yarn used, It was found to be about 3.0 to 3.5 times as large as when laid. The cost of the fabric increased due to the high value of the insulating yarn. Compared to using the insulating yarn as the chain knitting yarn, the insulating effect is better when the insulating yarn is used as the weft insertion yarn, but the amount of yarn used is greatly increased compared to the case of laying.

Example 5
In this embodiment, the chain stitch structure arranged in the warp direction exhibits a curve, for example, a hexagonal curve, and the wrapping cords are 0-1/1-0/0- 1/1-2/1-2/2-1/1-0//, one insulating yarn is provided between two adjacent chain stitches; 6 dough was obtained. In this case, the insulating yarns were curved, forming hexagons between adjacent insulating yarns. The hexagonal insulating threads do not cross the chain stitch, allowing the insulating threads to be pulled out of the curtain along the longitudinal direction. Similarly, the chain stitches may be laid in any other curvilinear fashion, with the insulating yarns being laid between two adjacent chain stitch yarns without crossing. The curvilinear installation of the insulating yarns resulted in increased yarn usage compared to the direct insertion installation. Using the detection method in Example 1, No. The heat insulating effect of the 6 fabrics was measured, and when the temperature in the left box reached 40°C, the temperature in the right box was 29°C.

Example 6
Warp-knitted fabrics, in the knitting process, due to the difference in knitting density, the size of the formed mesh is also different, and the distance between adjacent chain stitch yarns is also different. becomes larger and the mesh becomes smaller. In this example, the same weight of insulation yarn is used on fabrics with different gram weights, where adjacent chain stitches are both laid with insulation yarn, and the measurement method of Example 1 is used to measure different gram The thermal insulation effect of heavy fabric was discussed. Here, the heat insulation effect is represented by the ratio of the temperature difference between the left and right boxes to the temperature of the left box when the left box reaches 40°C. Table 1 shows the results.

Table 1

As can be seen from the table above, for the same amount of insulating yarns used, only the gram weight of the fabric is increased, i.e. by increasing the amount of other ordinary yarns used, the thickness of the fabric is reduced. Increased. In this case, the improvement of the insulation effect is very finite, from the above table, the insulation effect of the fabric of 70 g/m2 is 13.5%, and the insulation effect of the fabric of 150 g/m2 is only 16.6. %.

Example 7
In this example, the gram weight of the fabric is 150 g/m2, and the insulating yarns of different weight ratios are added to the fabric, and the measurement method of Example 1 is used to study the thermal insulation effect of the fabric. Here, the heat insulating effect is represented by the ratio of the temperature difference between the left and right boxes to the temperature of the left box when the left box reaches 40°C. Table 2 shows the results.

Table 2

From the above table, it was found that fabrics having the same gram weight have a remarkable heat insulating effect and have a large improvement range when the mass ratio of the heat insulating yarns to the fabric is large. From this, it was found that the mass ratio of the insulating yarn is very significant for the improvement of the insulating effect.

The foregoing has illustrated and described the basic principles, main features and advantages of the present invention. The present invention is not limited by the above examples, and the above examples and description are merely illustrative of the principles of the invention, and insofar as they do not depart from the spirit and scope of the invention, the invention may further include: Those skilled in the art will appreciate that it includes various changes and modifications, all of which fall within the scope of the invention for which protection is sought.

Claims (8)

A heat-insulating curtain knitted and woven with at least a chain stitch yarn, a weft insertion yarn, and a heat-insulating yarn,
The chain stitch yarn is knitted and woven along the warp direction of the curtain to form the chain stitch structure of the curtain,
the weft inset yarn is knitted and woven along the weft direction of the curtain to form a weft inlay of the curtain;
A weft-inserted inlay is installed on each of the front and back surfaces of the curtain,
The insulating yarn is laid in the warp direction between two adjacent chain stitch structures and is interposed between the weft-inserted inlays on both the front and back sides of the curtain,
The heat insulating yarn does not form loops in both the chain stitch yarn and the weft insertion yarn,
The heat insulation curtain , wherein the heat insulation yarn is a fully quenching polyester DTY yarn, with nano TiO ₂ as a matting agent, and added with 0.1%-0.5% graphene oxide . 2. The insulating curtain of claim 1, wherein the insulating yarn conforms to the shape of the chain stitch structure and does not form loops. 2. The heat insulating curtain according to claim 1, wherein one or more heat insulating yarns are laid between two adjacent chain stitch structures. 2. The heat insulation according to claim 1, wherein a heat insulating thread is provided between any two chain stitch structures, or the heat insulating thread is provided between the chain stitch structures at an arbitrary interval. curtain. 2. The insulated curtain of claim 1, wherein the insulated yarn accounts for 5% or more of the weight of the curtain fabric. The thermal insulation curtain further includes jacquard yarn,
2. The heat insulating curtain according to claim 1, wherein the heat insulating yarn is interposed between the weft insertion yarn and the jacquard yarn. A knitting and weaving method for a heat insulating curtain applied to the heat insulating curtain according to any one of claims 1 to 6 ,
Adopt a jacquard or tricot warp knitting machine to knit and weave the yarn into a fabric,
When a Jacquard warp knitting machine is used, it includes at least four reeds, one of which is a loop forming reed for knitting along the longitudinal direction to form a chain stitch structure, and one is a surface reed. One is a front reed for knitting or weaving the weft-insertion yarn or the jacquard yarn along the weft direction, one is a back reed for knitting or weaving the back weft-insertion yarn along the weft direction, A plain reed for laying heat insulating yarns along the warp direction between adjacent chain stitch structures,
When adopting a tricot warp knitting machine, it includes at least three reeds, one of which knits and weaves along the longitudinal direction so as to form a chain stitch structure, and is movable in the weft direction so that the weft insertion yarn on the surface One is a back reed for knitting and weaving the weft insertion yarn on the back side along the weft direction, and one is a back reed for knitting and weaving the insulating yarn in the adjacent chain stitch structure. A knitting and weaving method for a heat insulating curtain, characterized in that the reed is a plain reed for laying along the warp direction between the reeds. After the yarn is warped, it is knitted and woven into a fabric by a warp knitting machine,
At the time of warping, the pre-stretch rate of the insulating yarn is 8.0 to 10.0%,
8. The method of knitting and weaving a heat insulating curtain according to claim 7 , wherein the difference in elongation of the different heat insulating yarns after warping is 3‰ or less.

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