JP2022046429A - Heat insulating curtain - Google Patents

Abstract

To provide a heat insulating curtain.SOLUTION: In a heat insulating curtain knitted and woven at least by chain knitting yarns, weft internal yarns, and heat insulation yarns, the heat insulation yarns are not fixed or connected to the chain knitting yarns or to the weft internal yarn, the heat insulation yarns go parallel to chain knitted tissues in the warp direction, are mediated between warp insertion inlays on both the right and back surfaces of the curtain, the heat insulation yarns are laid on, and no loop is formed, so that a used amount of the heat insulation yarns is the smallest but a surface area of a fabric covered with the heat insulation yarns is the largest. A mesh of warp knitted fabric is covered adiabatically, so that best insulation effectiveness can be achieved.SELECTED DRAWING: Figure 3

Description

The present invention relates to the field of curtains, and particularly to heat insulating curtains.

As part of household goods, curtains have gradually expanded their role from their original decoration and privacy protection to various functions as people's material living standards have risen and consumer values continue to change. And it has been gradually recognized. The curtain can realize a specific function by the knitting process and the improvement of the material. Here, the heat-insulating heat-retaining curtain reduces high-temperature radiation from the outside to the room in the summer, increases the comfort in the room, and has a role of heat-retaining the room in the winter, effectively reducing carbon dioxide emissions. It is an eco-race curtain that can be made.

Conventionally, a heat insulating curtain can realize a heat insulating effect by a method of coating a curtain cloth. For example, in CN201710777276.4 and CN104146580, a heat insulating finish was applied to the surface of the fabric layer by the method of surface functional coating to achieve the heat insulating function. In order to improve the compatibility between the heat insulating finish and the fabric, there are strict requirements for the ingredients of the finishing agent, and in the treatment process, dip coating, roll coating, etc. are usually used on the curtain. The paint needs to reach a certain thickness. The wet film is pressed or spin-dehydrated against the coated curtain, and a rubber roller is used in the pressing. After pressing or spin dehydration, the curtain needs to be dried and dried and washed multiple times to remove excess paint that is not completely adhered to the material. The process of treating the entire curtain fabric to achieve the heat insulating effect is complicated, the processing amount is large, water is wasted by multiple washings, the environment is polluted, and harmful gas is easily volatilized during the use process. , Causes a certain amount of damage to human health.

CN201000051571.8 discloses a heat insulating composite cloth comprising an inner cloth layer, an outer cloth layer, and a heat insulating filler cloth surrounded by the inner cloth layer and the outer cloth layer. The insulating filler fabric layer is a textile fabric having a raised surface on at least one side of the fabric. The thermal filler fabric layer includes a double-sided knit fabric with a back knit terry sinker loop knit structure. The double-sided knit fabric has a technical surface having a raised surface or a fluffy surface and a technical back surface having a cut loop surface or a velor surface. By filling the heat insulating layer with the heat insulating cloth layer, the cloth has a heat insulating effect, the thickness of the cloth is increased, and the production cost is also increased.

Chinese Patent Application No. 2017107777276.4 Chinese Patent Publication No. CN104146580 Gazette Chinese Patent Application No. 20108051571.8

The present invention provides a heat insulating curtain, in which a heat insulating yarn is woven into the curtain by a warp knitting process, the resulting curtain has an excellent heat insulating effect and does not require post-treatment with a heat insulating finish. In addition, in the knitting process, the amount of heat insulating yarn used is the smallest, but the best heat insulating effect is achieved, the production cost of heat insulating curtain is reduced, the cost performance of the curtain is improved, and the spread and application of heat insulating curtain It has important significance.

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

A heat insulating curtain knitted by a warp knitting process, in which a warp knitting is a yarn that is fed to all knitting needles of a knitting machine in the warp direction using one set or a plurality of sets of threads arranged in parallel, and at the same time, a loop. Refers to the process of forming and forming a woven fabric. The formed loops are arranged in the warp direction, and adjacent threads are socketed to each other. In the socket connection process, each yarn is controlled by a single knitting needle. The yarn is generally divided into a chain knitting yarn in the warp direction, a weft insertion yarn in the weft direction, and a jacquard yarn. The heat insulating curtain in the present application is knitted by at least a chain knitting yarn, a weft insertion yarn, and a heat insulating yarn. The chain knitting yarn is knitted so as to be a chain knitting structure of the woven fabric, and the feature is that each loop wale is formed by the same warp yarn, and at the time of knitting, each warp yarn is inlaid in the same knitting needle from beginning to end. .. In a chain knitted structure, the wales are not tied to each other and have low vertical extensibility, and are generally knitted so as to be combined with other tissues to form a needle fabric to reduce the vertical extensibility. can.

The weft insertion yarn is knitted along the weft direction of the curtain, and two adjacent chain knitting structures are fixedly connected after forming a loop with the weft insertion yarn to form a weft insertion inlay of the curtain. Weft insertion inlays are installed on both the front and back sides of the curtain. The heat insulating yarn is installed along the warp direction between two adjacent chain knitting tissues, the heat insulating yarn is parallel to the chain knitting structure, and the heat insulating yarn is weft-inserted on both the front and back surfaces of the curtain. Intervene between inlays. In other words, unlike other yarns in the normal warp knitting process, the installation of the heat insulating yarn does not form a loop with any of the yarns, but is fixed by the yarns installed in the weft direction on both the front and back sides, so that the heat insulating yarn is installed. The yarn may be interposed between the weft insertion inlays on both sides of the curtain, the insulating yarn may be interposed between the jacquard yarns on both sides of the curtain, or one side. A weft insertion inlay may be used and the other surface may be a jacquard thread. By installing threads in the weft direction 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 heat insulating yarn is not fixedly connected to the chain knitting yarn, the weft insertion yarn or the jacquard yarn, the insulating yarn can be pulled out independently from the curtain, which is equivalent to laying on the fabric structure and reduces the amount of yarn used. can do. This is because the yarns are tied together in the loop forming process and the amount used increases.

Alternatively, the chain knitting structure is installed vertically in the fabric, and the heat insulating yarns interposed between the adjacent chain knitting structures are linearly installed in the warp direction of the curtain fabric, and both the front and back surfaces of the curtain fabric are weft-wise. An insert thread is installed and a heat insulating thread is interposed between the weft insertion inlays on both the front and back sides.

Alternatively, the chain knitting structure is placed in a curved shape in the fabric, the heat insulating yarn matches the curved shape of the chain knitting structure, and the heat insulating yarn is installed between the adjacent chain knitting structures. Weft insertion threads in the weft direction are installed on both the front and back sides of the curtain fabric, and the heat insulating threads are interposed between the weft insertion inlays on both the front and back sides.

In a warp knitted fabric, a mesh is provided between adjacent chain knitting yarns, and preferably one or a plurality of heat insulating yarns are installed between any two adjacent chain knitting yarns. This corresponds to the fact that all meshes are covered with the heat insulating yarn, and the surface area of the fabric covered with the heat insulating yarn is maximized. In this case, in the curtain fabric, heat insulating threads are laid on the surfaces other than the loop formation, and the heat insulating effect is the best.

Preferably, a plurality of heat insulating threads may be installed between two adjacent chain knitting structures, and when a plurality of heat insulating threads are installed, the mesh is better covered and has a better heat insulating effect. be able to.

Alternatively, the heat insulating yarn may be installed at intervals between adjacent chain knitting structures. Depending on different requirements for thermal insulation effect, the degree of coarseness and tightness of the thermal insulation yarn may be installed. For example, one heat insulating yarn may be provided at intervals of two chain knitting structures.

The present application provides a method for knitting and weaving a heat insulating curtain, and a Jakar or tricot warp knitting machine can be used. If it is a Jakar warp knitting machine, it includes at least four reeds, one of which is a chain knitting structure. It is a loop forming reed for knitting along the vertical direction, one is a front reed for knitting the weft insertion yarn on the front surface along the weft direction, and one is the weft insertion yarn on the back surface. It is a back reed for knitting and weaving along the weft direction, and one is a plain reed for feeding the heat insulating yarn between adjacent chain knitting yarns along the warp direction. A tricot warp knitting machine contains at least three reeds, one of which is knitted along the vertical direction to form a chain knitting structure and is movable in the weft direction to knit the weft insertion yarn on the surface. It is a loop forming reed for knitting, one is a back reed for knitting the weft insertion yarn on the back surface along the weft direction, and one is the heat insulating yarn between adjacent chain knitting structures. A plain reed for laying along the warp direction.

In the knitting and weaving process, chain knitting yarns, weft insertion yarns or jacquard yarns are ordinary yarns, and after knitting and weaving, the yarns loop and bind to each other, and the demand for warping of yarns is not high. Warping is the process of pulling out the desired yarn from the bobbin, applying a certain pretension, passing through several yarn-separated knitting needles, and winding the yarn parallel to the warp by the action of the winding power of the warp. Refers to turning. The warping of the heat insulating yarn is different from that, because it is a DTY yarn, it has low elasticity, the tension of each yarn is the same during the warping, the elongation after pre-stretching is the same, and it is on the warp axis after contraction. It is required to wind in parallel. The hardness of the warp is medium and the oil on the fibers should not overflow. It is required that the tension and length of the heat insulating yarn on the warp axis of the same socket match. The elongation deviation of the warped warp warp insulation yarn must not exceed 3 ‰, otherwise the surface of the fabric will be uneven or yarn breakage will occur. Therefore, warping of insulating yarns is more demanding of equipment and processes.

In the warping process of the heat insulating yarn, after the heat insulating yarn is unwound from the bobbin, the yarn is pulled out at a linear velocity higher than the unwinding speed to prevent the unwound yarn from being continuously wound together with the bobbin. Whether or not the selection of the pre-stretch ratio is appropriate depends on whether or not the heat insulating yarn is smoothly unwound from the bobbin and continues to be wound according to the rotation of the bobbin. If the pre-stretch rate is too large, the heat insulating yarn is smoothly pulled out from the bobbin and does not continue to be wound according to the rotation of the bobbin, but the yarn breakage is likely to occur. On the contrary, if the pre-stretch rate is too small, the heat insulating yarn is difficult to be pulled out from the bobbin and is wound according to the rotation of the bobbin, the yarn breakage increases, which is disadvantageous to the progress of warping. In the present application, the prestretch rate of the heat insulating yarn was set to 8.0 to 10.0% by a plurality of tests.

The warped yarn is knitted and woven by a warp knitting machine so as to become a fabric, the warp knitting machine is mainly composed of knitting and weaving means and a winding means, and the knitting and weaving means makes the yarn into a fabric after loop formation. The action of the winding means is to wind the fabric coming out of the knitting area into a cloth roll at a predetermined speed.

The cloth winding roller is left on the drive winding roller and the driven winding roller, and when the cloth winding is performed, the drive device rotates the drive winding roller, the drive winding roller rotates the driven winding roller, and the cloth winding roller. Is left on the drive take-up roller and the driven take-up roller, so that it rotates indirectly. Since the rotation speed of the cloth winding roller is constant in the cloth winding process, the tension of the cloth cannot be adjusted. In a normal warp knitted fabric, the chain knitting structure is a loop formation, the yarn is curved, has a certain extensibility, and the tension on the cloth winding roller is small. Since the heat insulating yarn is laid inside the fabric, it is in a tense state and has very low elasticity. The tension becomes higher. In the process of rotating the cloth-wrapping roller, the tension on the cloth-wrapping roller clearly increases, which easily causes the curvature of the axial center line of the cloth-wrapping roller and the deformation of the fabric pattern, which affects the quality of the product. Therefore, normally, the cloth winding rollers applicable to ordinary warp knitted fabrics cannot be applied to the production process of the fabrics of the present application, and the ordinary cloth winding rollers are adjusted according to the knitting density of the heat insulating fabric, and the diameter or the cloth winding rollers are adjusted. It is necessary to adapt to the stress in the cloth winding process of the heat insulating thread by increasing the rigidity of the cloth winding roller. On the other hand, it is more demanding.

In the process of producing DTY yarn, generally, POY is spun using a PET chip, and then elasticity is applied to produce DTY. The TiO ₂ is dispersed in the PET chip, and the more uniform the dispersion in the TiO ₂ chip, the easier the subsequent spinning process. The higher the content of TiO ₂ , the better the matte property and the better the heat insulating effect of the yarn. However, when the content of TiO ₂ is high, it is very difficult to make the distribution in the fiber very uniform, because TiO ₂ is a solid pellet, insoluble in water, and the pellet is fine. This is because it is small and very easy to aggregate in the dispersion process. In this case, it has a great influence on the uniformity of the distribution of the amorphous region and the crystal region of POY, and it is very difficult for the subsequent spinning and elasticity imparting process. It is a disadvantageous factor, which causes local crystal and non-uniform orientation in tension, twisting and deformation of the fiber, and causes dyeing difference in the longitudinal portion of the DTY yarn, forming defects.

The present application discloses a heat insulating yarn that improves _matteness and spinnability by adding 0.1% to 0.5% graphene oxide as a matting agent in PET chips.

The principle of the heat insulating curtain is mainly the following two points. One is to reduce the intensity by absorbing excess sunlight, and the other is to realize heat 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. Threads treated with titanium dioxide can be effectively insulated. The amount of titanium dioxide supported in the yarn has a very important effect on the heat insulating performance, and if the amount supported is small, the heat insulating effect is not remarkable, and the solidity of the support of titanium dioxide in the yarn is high. It affects the effective time of heat insulation, and if the rigidity is low, the heat insulation effect of the curtain gradually decreases as the usage time increases. Therefore, it is of sufficient value to develop a yarn having a large amount of titanium dioxide supported and a high degree of rigidity. Titanium dioxide may be supported on the yarn by adding nanotitanium dioxide during synthetic fiber spinning or in the spinning process, but this method tends to make the dispersion of nanoparticles non-uniform, and the spine is easily closed, and at the same time. The mechanical performance of the yarn tends to deteriorate. The present application has solved the problem that by adding nanotitanium dioxide and graphene oxide to the PET chip, the nanotitanium dioxide particles are easily aggregated and difficult to disperse, and the bond hardness with the yarn matrix is poor. Graphene oxide has very strong hydrophilicity, is excellent in dispersibility in water, and can provide a large specific surface area to effectively disperse nanotitanium dioxide and prevent aggregation. Moreover, graphene oxide has a large number of oxygen-containing functional groups such as a hydroxyl group (-OH), a carboxy group (-COOH), a carbonyl group (CO) and an epoxidized product, and is oxidized by these oxygen-containing groups. Graphene has a very strong plasticity and can enhance the adsorptive power of nanotitanium dioxide in threads.

Compared with the prior art, the present invention has the following beneficial effects.
1. 1. According to the heat insulating curtain of the present invention, the heat insulating curtain has a heat insulating effect by the warp knitting process and is knitted by the chain knitting yarn, the weft insertion yarn, and the heat insulating yarn. Both of the weft insertion yarns are not fixedly connected and are only laid between the weft insertion inlays on both the front and back sides of the curtain. In advancing and retreating, the heat insulating yarn used is the least, the surface area covered with the heat insulating yarn is the largest, and the mesh of the warp knitted fabric is covered with the heat insulating yarn, so that the best heat insulating effect can be obtained.
2. 2. According to the heat insulating curtain of the present invention, in the method of installing the heat insulating yarn, since the heat insulating yarn is not fixedly connected to other yarns, the heat insulating yarn can be pulled out from the curtain with force along the warp direction to insulate. The yarn is installed along the warp direction between two adjacent chain knitting structures and intervenes between the weft insertion 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. Therefore, the thread does not come off. On the other hand, by setting the thickness of the weft insertion inlay and adjusting the thickness of the curtain fabric, it is possible to obtain fabrics of different gram weight, and the curtain is light, thin and breathable while having a heat insulating effect. good.
3. 3. Different installation methods of the heat insulating yarn can achieve different heat insulating effects, and when the heat insulating yarn is installed in any two adjacent chain knitting structures, the surface area covered with the heat insulating yarn on the curtain body is increased. Largest and has good heat insulation effect. Depending on the usage situation, heat insulating threads may be provided at intervals in order to reduce the cost of the curtain in a situation where the heat insulating demand is not high.
4. According to the heat insulating yarn of the present invention, by adding graphene oxide to nanotitanium dioxide, the amount of nanotitanium dioxide supported in the yarn is increased, the firmness is increased, the heat insulating curtain effect is improved, and the service life is improved. Becomes longer.
5. According to the heat insulating curtain of the present invention, since the heat insulating yarn is surrounded between the yarns on both the front and back surfaces, the wear of the heat insulating yarn is small and the heat insulating effect of the curtain can be effectively extended.

FIG. 1 is a schematic structural diagram of a heat insulating effect detection box for a heat insulating curtain of the present invention. FIG. 2 is a structural structure diagram of a normal warp knitted fabric. FIG. 3 is a structural structure diagram of the heat insulating curtain fabric of the present invention. FIG. 4 is a wrapping code diagram of the chain knitting yarn of the fabric of FIG. FIG. 5 is a wrapping code diagram in which the chain knitting structure is curved.

As shown in FIG. 1, the heat insulating effect of the heat insulating curtain is measured in the following detection box 1, and for convenience of observation, the detection box is made of a transparent material, and the detection boxes are symmetrical left box 11 and right box. 12 is included, and the fabric 2 to be detected is interposed between the left and right boxes, and in order to prevent the voids from being exposed and the detection effect being affected, the periphery of the fabric is placed between the left and right boxes. 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 mounted. It was heated to 40 to 45 ° C., maintained for 30 minutes, and the temperature in the right box was observed.

Example 1
FIG. 2 is a structural structure diagram of a normal warp knitted fabric (No. 1 fabric). In the figure, the chain knitted fabric 5 is installed in the vertical direction, and the weft insertion yarn 6 is installed on both the front and back surfaces of the fabric. No insulating yarn was laid between the adjacent chain knitting structures, which meant that the fabric knitted by the warp knitting process was almost mesh. The fabric of FIG. 2 was knitted with ordinary polyester yarn, and the gram weight of the fabric was 100 grams / square meter.

FIG. 3 is a structural structure diagram of the heat insulating curtain fabric, in which the heat insulating yarn 7 is laid between the chain knitting structures and No. Two fabrics are obtained, the chain knitting structure is linear, FIG. 4 is a wrapping code diagram (0-1 / 1-0 //) of the chain knitting yarn, and FIG. 4 is an open type chain knitting. One heat insulating thread is directly inserted between two adjacent chain knits. The open chain knit may be provided in the closed chain knit, and the wrapping code of the closed chain knit is 0-1 //. Similarly, one insulating yarn is inserted directly between two adjacent closed chain knits.

In the figure, heat insulating yarns are laid between the adjacent chain knitting tissues, and the chain knitting yarns are curved after the loop formation to form the chain knitting structure. The heat insulating yarn is a DTY yarn, has low elasticity, and the fluffy surface can increase the surface area of the yarn in the knitting process. The weft insertion thread is installed in the weft direction, and the heat insulating thread is fixed between the weft insertion threads on both the front and back sides. For comparison, extracting the insulating yarn in region A can expose a large mesh. Obviously, most of the mesh of the fabric body is covered with insulating yarn, which greatly reduces the surface area of the hollow part and achieves the insulating effect. When the heat insulating yarn is not extracted, in the fabric of FIG. 3, the amount of the heat insulating yarn used is 10% of the total weight of the fabric, and the gram weight is 100 grams / square meter. That is, in 1 square meter of fabric, 10 grams is heat insulating yarn, 90 grams is ordinary yarn, and the total mass of the fabric is 100 grams.

No. 1 dough and No. The two doughs have the same gram weight. Insulation effect is measured in the detection box. First, No. 1 The dough is interposed and fixed between the left box body and the right box body, and at this time, the temperature measuring instruments in the left and right box bodies both show 23 ° C. Turn on the infrared light lamp in the left box to heat it, heat the left box to 40 ° C, observe the temperature measuring device of the right box, and as the temperature of the left box rises, the right box The temperature in the body also gradually rises, and when the temperature in the left box reaches 40 ° C, the temperature in the right box is 37 ° C, and after maintaining for 30 minutes, in the right box. The temperature reached 39 ° C.

Similarly, No. 2 The dough is interposed between the left box body and the right box body and fixed, and at this time, the temperature measuring instruments in the left and right box bodies both show 23 ° C. Turn on the infrared light lamp in the left box to heat it, heat the left box to 40 ° C, observe the temperature measuring device of the right box, and as the temperature of the left box rises, the right box The temperature in the body also gradually rises, and when the temperature in the left box reaches 40 ° C, the temperature in the right box is 29 ° C, and after maintaining for 30 minutes, in the right box. The temperature reached 31 ° C.

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

Example 2
In this embodiment, No. The amount of heat insulating yarn used in the two fabrics is reduced by half, that is, the heat insulating yarn is provided in the first row, but not in the second row, and the heat insulating yarn is provided in the third row, and the heat insulating yarns are sequentially spaced. Installed, No. Obtained 3 doughs. Using the detection method in Example 1, No. The heat insulating effect of the three fabrics was measured, and when the temperature in the left box reached 40 ° C and maintained for 30 minutes, the temperature of the right box was 35 ° C. Therefore, the amount of heat insulating yarn used. It was found that the heat insulating effect was correspondingly reduced as the temperature decreased.

Similarly, in the vertical rows, the installation of insulation threads and the non-installation of insulation threads may be optionally combined in order to reach different insulation effects.

Example 3
In this embodiment, a heat insulating yarn is used as the chain knitting yarn instead of the ordinary yarn, the weft insertion yarn is an ordinary yarn, and the heat insulating yarn is not laid between the adjacent chain knitting tissues. 4 doughs were obtained. Since the chain knitting structure is loop formation, the amount of heat insulating yarn used is clearly increased, and the dough is knitted to obtain a dough having a gram weight of 100 g / square meter, and the amount of heat insulating yarn used is 35 g. Using the detection method in Example 1, No. When the heat insulating effect of the four fabrics was measured and the temperature in the left box reached 40 ° C, the temperature of the right box was 36 ° C, which clearly increased the amount of heat insulating yarn used. It turned out to be about 3.5 times as much as when laying. Due to the high value of the heat insulating yarn, the cost of the fabric increases. At the same time, due to the presence of the mesh, the heat insulating effect is also inferior to the effect when laying. On the other hand, when the heat insulating yarn is used as the chain knitting yarn, the chain knitting yarn forms a loop to form a chain knitting structure, so that the chain knitting yarn is in a continuous tension state, which means that the diameter of the heat insulating yarn becomes smaller. This corresponds to a smaller surface area of the fabric covered with the heat insulating yarn. However, when the heat insulating yarn is directly inserted, after knitting and weaving, the heat insulating yarn has no tension in the warp direction, is fluffy on the surface of the heat insulating yarn, and can increase the surface area.

Example 4
In this embodiment, a heat insulating yarn is used as a weft insertion yarn instead of an ordinary yarn, the chain knitting yarn is an ordinary yarn, and the heat insulating yarn is not laid between the adjacent chain knitting structures. 5 doughs were obtained. Since the weft insertion yarn moves in the weft direction to form a weft insertion inlay, the amount of heat insulating yarn used is also clearly increased, and knitting is performed to obtain a fabric having a gram weight of 100 grams / square meter, and the use of heat insulating yarn is used. The amount was 30-35 grams. Using the detection method in Example 1, No. When the heat insulating effect of the 5 fabrics was measured and the temperature in the left box reached 40 ° C, the temperature of the right box was 33 ° C, which clearly increased the amount of heat insulating yarn used. It was found that it was about 3.0 to 3.5 times as much as when laid. Due to the high price of insulation yarn, the cost of the fabric has increased. The heat insulating effect is better when the heat insulating yarn is used as the weft insertion yarn than when the heat insulating yarn is used as the chain knitting yarn, but the amount of the yarn used is significantly increased as compared with the case where the heat insulating yarn is laid.

Example 5
In this embodiment, the chain knitting structure installed in the warp direction exhibits a curve, for example, is installed so as to be a hexagonal curve, and as shown in FIG. 5, the wrapping code is 0-1 / 1-0 / 0-. It is 1 / 1-2 / 1-2 / 2-1 / 1-0 //, and one heat insulating thread is provided between two adjacent chain knits, and No. 6 doughs were obtained. In this case, the insulation threads were curved and formed a hexagon between the adjacent insulation threads. The hexagonal heat insulating yarn does not intersect the chain knitting, and the heat insulating yarn can be pulled out from the curtain along the vertical direction. Similarly, the chain knit may be installed in any other curve, and the insulating yarn is installed between two adjacent chain knitting yarns without crossing. Insulated yarn installed in a curved line used more yarn than the direct insertion installation. Using the detection method in Example 1, No. When the heat insulating effect of the 6 doughs was measured and the temperature in the left box reached 40 ° C, the temperature in the right box was 29 ° C.

Example 6
In the warp knitting process, the size of the formed mesh differs depending on the knitting density in the knitting process, and the distance between adjacent chain knitting yarns also differs. Generally, the larger the knitting density of the fabric, the gram weight. Becomes larger and the mesh becomes smaller. In this example, heat insulating yarns are laid on the adjacent chain knitting structures, and the same weight of heat insulating yarns are used for fabrics having different gram weights, and different grams are used by using the measuring method of Example 1. The heat insulating effect of heavy fabric was considered. Here, the heat insulating effect is expressed by the value of the ratio between the temperature difference between the left and right boxes and the temperature of the left box when the left box reaches 40 ° C. The results are shown in Table 1.

Table 1

As is clear from the table above, if the amount of insulation yarn used is the same, the thickness of the fabric is increased by increasing only the gram weight of the fabric, that is, by increasing the amount of other ordinary yarn used. Increased. In this case, the improvement of the insulation effect is very finite, from the above table, the insulation effect of the 70g / square meter fabric is 13.5% and the insulation effect of the 150g / square meter fabric is only 16.6. It turned out to be%.

Example 7
In this example, the gram weight of the dough is 150 grams / square meter, heat insulating yarns having different weight ratios are added to the dough, and the heat insulating effect of the dough is considered using the measuring method of Example 1. Here, the heat insulating effect is expressed by the value of the ratio between the temperature difference between the left and right boxes and the temperature of the left box when the left box reaches 40 ° C. The results are shown in Table 2.

Table 2

From the above table, it was found that the heat insulating effect is remarkable and the improvement width is large when the mass ratio of the heat insulating yarns occupying the cloth is large in the cloth having the same gram weight. From this, it was found that the mass ratio of the heat insulating yarn was very remarkable for the improvement of the heat insulating effect.

The basic principle, main features and merits of the present invention have been shown and described above. The present invention is not limited to the above examples, and the description of the above examples and the specification merely explains the principle of the present invention, and the present invention is further described as long as it does not deviate from the gist and scope of the present invention. Those skilled in the art will understand that various changes and improvements are included, all of which are within the scope of the invention for which protection is sought.

Claims (10)

A heat insulating curtain knitted with at least a chain knitting yarn, a weft insertion yarn, and a heat insulating yarn.
The chain knitting yarn is knitted along the warp direction of the curtain to form a chain knitting structure of the curtain.
The weft insertion yarn is knitted along the weft direction of the curtain to form a weft insertion inlay of the curtain.
Weft insertion inlays are installed on both the front and back sides of the curtain.
The heat insulating yarn is laid along the warp direction between two adjacent chain knitting structures, and is interposed between the weft insertion inlays on both the front and back sides of the curtain.
The heat insulating yarn is a heat insulating curtain, characterized in that neither the chain knitting yarn nor the weft insertion yarn forms a loop. The heat insulating curtain according to claim 1, wherein the heat insulating yarn matches the shape of the chain knitting structure and does not form a loop. The heat insulating curtain according to claim 1, wherein one or a plurality of heat insulating threads are laid between two adjacent chain knitting structures. The heat insulating yarn according to claim 1, wherein the heat insulating yarn is installed between any two chain knitting tissues, or the heat insulating yarns are installed between the chain knitting tissues at arbitrary intervals. curtain. The heat insulating curtain according to claim 1, wherein the heat insulating yarn occupies 5% or more of the weight of the curtain fabric. The insulating curtain further comprises jacquard yarn and
The heat insulating curtain according to claim 1, wherein the heat insulating yarn is interposed between the weft insertion yarn and the jacquard yarn. The heat insulating curtain according to claim 1, wherein the heat insulating yarn is a fully quenching polyester DTY yarn. The heat insulating curtain according to claim 7, wherein the heat insulating yarn contains nano TiO ₂ as a matting agent and 0.1% to 0.5% graphene oxide is added. A method for knitting and weaving a heat insulating curtain, which is applied to the heat insulating curtain according to any one of claims 1 to 8.
Use a Jacquart or tricot warp knitting machine to knit and knit the yarn into a fabric.
When adopting a Jakar warp knitting machine, it contains at least four reeds, one of which is a loop forming reed for knitting along the vertical direction so as to form a chain knitting structure, and one of which is a surface. It is a front reed for knitting a weft insertion yarn or a jacquard yarn along the weft direction, one is a back reed for knitting the weft insertion yarn on the back surface along the weft direction, and one is the above-mentioned. A plain reed for laying insulating yarn along the warp between adjacent chain knitting structures.
When a tricot warp knitting machine is adopted, it contains at least three reeds, one of which is knitted along the vertical direction so as to form a chain knitting structure, and is movable in the weft direction and has a weft insertion yarn on the surface. It is a loop forming reed for knitting, one is a back reed for knitting the weft insertion yarn on the back surface along the weft direction, and one is the heat insulating yarn of the adjacent chain knitting structure. A method of knitting and weaving a heat insulating curtain, which is characterized by being a plain reed for laying along the warp direction between them. After warping, the yarn is knitted and woven by a warp knitting machine to become a fabric.
During the aging period, the pre-stretch rate of the heat insulating yarn was 8.0 to 10.0%.
The method for knitting and weaving a heat insulating curtain according to claim 9, wherein the elongation deviation of different heat insulating yarns after warping is 3 ‰ or less.

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