JPH0647021Y2 - Roll screen - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention has a screen material made of a knitted fabric made of various fiber materials and a winding portion of the screen material, and replaces a conventional curtain or blind. In particular, the present invention relates to an improved roll screen used for a screen.

[Prior Art] A roll screen is used by pulling out a screen material wound in a roll shape at a winding portion by an appropriate length. The entire screen material is impregnated with resin to keep it in a non-existent state.

As the resin to be impregnated, melamine resin, urea formalin resin, acrylic resin or the like is used, and the resin is impregnated with a resin amount of 30 to 50 wt% with respect to the weight of the screen material.

[Problems to be solved by the invention] However, when the resin processing as described above is applied, there are drawbacks such that the glossiness of the ground yarn forming the screen material is impaired and the shape of the yarn is changed. There was a problem that the quality of the screen was impaired. In addition, since the entire screen material is hardened by resin processing, scratches (chalk marks) due to material breakage or curl habit are likely to occur at the time of assembling into the winding section or during the distribution stage such as transportation, which often deteriorates the quality. .

Further, depending on the type of resin to be impregnated, there is a possibility that it may absorb moisture in the air to cause curling or deformation during use, and there is a concern that molds and microorganisms will propagate.

Furthermore, since the whole is resin-processed, even if a synthetic fiber yarn subjected to electrostatic treatment or antibacterial treatment is used, the electrostatic effect and the antibacterial effect cannot be achieved.

Further, when using urea formalin resin or the like, there is a problem in the working environment, and further, the resin processing on the entire cloth causes a considerable increase in cost.

Further, when the resin processing is performed, there is a possibility that the thread may be discolored or stain may be attached.

Therefore, an object of the present invention is to provide a roll screen capable of solving the above-mentioned conventional problems all at once by providing a tension on the screen material without applying a conventional resin processing. It is in the place of providing.

[Means for Solving the Problems] As a result of earnest research to achieve the above object, it was found that by improving the material of the screen material, it is possible to give the screen material favorable tension only by simple heat setting. As a result, it is possible to obtain a roll screen that eliminates the above-mentioned difficulties caused by resin processing.

That is, in the present invention, in a screen screen made of a knitted or woven fabric and a roll screen having a winding portion of the screen screen, a synthetic fiber composite made of materials having different melting points is provided at an appropriate number of wefts in the screen screen. It is characterized in that the yarn is knitted and woven, and the screen material is heat-set at a temperature equal to or higher than the softening point of the low melting point synthetic fiber constituting the composite yarn.

The low melting point synthetic fiber of the composite yarn used for every suitable number of weft yarns in the screen material may have a low melting point in comparison with one fiber constituting the composite yarn and the ground yarn constituting the fabric. As the constitution of the composite yarn, various constitutions such as blended yarn, twisted yarn, core-sheath composite yarn and the like can be adopted. From the standpoint of heat setting easiness and certainty, it is desirable to use a core-sheath composite yarn in which a low-melting point synthetic fiber is used for the sheath. As such a composite yarn, for example, the softening point of the sheath is 110 ° C.
Polyester fiber composite yarn having a softening point of about 240 ° C can be used.

As the material of the ground yarn, as long as it can withstand heating during heat setting, besides synthetic fibers, natural fibers such as cotton can be used, and knitting or weaving with a mixed yarn of natural fibers and synthetic fibers, or natural fiber yarns. It is possible to use various fiber materials such as interlaced weaving with synthetic fiber yarn.

The synthetic fiber composite yarn is preferably used not only every few weft yarns, but also when used in an appropriate number of warp yarns in order to give tension to the screen fabric. However, as the number of yarns increases, the hardened warp becomes resistance during winding, so
Partial and small use is desired.

It should be noted that the weft yarn referred to here is only the weft yarn in the screen material, and the knitted fabric may be the weft yarn or the warp yarn.

[Operation] As described above, in the weft yarn of the screen material, the synthetic fiber composite yarns made of materials having different melting points are used for weaving every suitable number of weft yarns and knitted, and the temperature is equal to or higher than the softening point of the low melting point synthetic fiber. When the screen fabric is heat-set by, the low melting point synthetic fiber is softened and then solidified, thereby hardening and increasing rigidity, and bending resistance. Therefore, a tension is generated on the screen material, the tendency to be rolled inward or outward from both sides and the tendency to warp is suppressed, and a flat state without curling or twisting can be maintained.

Since the low melting point synthetic fibers used for every appropriate number of weft yarns are heat set, the entire screen fabric is not cured, and chalk marks are not easily attached during use or when handling the fabric.

When the whole is resin-processed, the glossiness of the ground yarn is impaired, and the yarn may be discolored or stains may be attached, but since only the low melting point synthetic fiber is heat set, the glossiness of the ground yarn is not impaired, There is no discoloration of the threads, no stains are attached, and the texture of the material is utilized, resulting in a beautifully finished state.

Since the low melting point synthetic fiber used for the weft is heat set, there is no resistance during winding and smooth winding is possible compared with the case where the entire screen material is processed with resin.

When a synthetic fiber yarn subjected to electrostatic treatment or antibacterial treatment is used, its effect is not impaired, and flameproof treatment and antifouling treatment are easy.

The hardness of the entire screen material is determined by the amount of the low melting point synthetic fiber used, so it can be set appropriately, and unlike the conventional example in which the hardness is adjusted by the resin amount, the flameproof effect may decrease even if the hardness is increased. Absent.

Since it is a heat set process, the process is simple, and the manufacturing efficiency can be improved and the cost can be reduced.

When the core-sheath composite yarn is used as the synthetic fiber composite yarn and the sheath portion is made of the low-melting point synthetic fiber, only the sheath portion is heat set, so that the reinforcing effect is obtained by the core portion and the yarn does not break. , Durability is improved.

[Embodiment] The drawings show an embodiment of the roll screen according to the present invention, in which 1 is a screen material woven from polyester fiber, and the winding pipe 3 of the winding portion 2 has an upper end portion as in the conventional case. It is attached and can be pulled out and wound up. 4 is a weight bar attached to the lower end of the screen ground, 5 is a pull cord, 6 is a winding spring built into the winding pipe 3, 7 is a mounting bracket, and 8 is a screen material for drawing, winding and stopping. It is a control unit that controls. The screen material 1 can be freely locked in the drawing length by pulling it out with the pull cord 5 or the weight bar 4, and when the screen material is wound, the locked state is released by lightly pulling the screen material, and by the spring force of the winding spring 6. It has a structure to be wound up.

The above structure is not particularly limited, and the winding pipe 3 may be used instead of pulling the screen material.
It is also possible to have a structure in which the is manually or electrically rotated.

Fig. 2 is an enlarged view of the screen material 1. Most of the warp threads 9 and weft threads 10 that make up the material are ordinary melting points, for example 240 ° C.
Using polyester fiber yarn with a melting point of about
An example is shown in which the synthetic fiber composite yarn 11 is used every two 10s. As shown in FIG. 3, the synthetic fiber composite yarn 11 is a core-sheath composite yarn, the core 11a is made of polyester fiber having the same melting point as the conventional one, and the sheath 11b is made of a low melting point rigid fiber of about 110 ° C., for example. However, the low melting point rigid fiber is hardened to have rigidity by heat setting the screen material at a temperature equal to or higher than the softening point of the low melting point rigid fiber.

Of course, the configuration of the above-mentioned screen material is only an example,
Various changes can be made in the structure of the fabric, the structure of the synthetic fiber composite yarn, and the like.

As a processing procedure after weaving the dough, various procedures can be performed, for example, weaving → scouring → heat setting finish, weaving → scouring → dyeing → drying → heat setting finishing,
Weaving → scouring → presetting → printing → drying → heat set finishing etc. can be adopted.

[Effect of the Invention] As described above, the roll screen according to the present invention is not subjected to resin processing, and synthetic fiber composite yarns are used every several weft yarns of the screen material. Since the heat setting is performed at a temperature equal to or higher than the softening point, the following effects are achieved.

Since the weft thread hardens to increase its rigidity and flex resistance,
Tension is generated on the screen material, the warp from both sides to the inside or the outside is suppressed, and a flat state with tension is obtained during use.

Since the whole screen material does not harden, no chalk marks are attached during use or when handling the fabric.

The glossiness of the ground thread is not hindered, and the texture of the material is utilized because the thread does not discolor or stain, and a beautiful finished state is obtained.

Since the synthetic fiber composite yarn is mainly used as the weft yarn and the low melting point fiber is heat set, the winding can be smoothly performed without resistance at the time of winding, as compared with the case where the entire screen material is resin-processed.

When a synthetic fiber yarn subjected to electrostatic treatment or antibacterial treatment is used as the base yarn, its effect is not impaired, so that high quality products can be provided, and flameproof treatment and antifouling treatment are easy.

In conventional resin processing, depending on the resin used, there is a risk of absorbing water by resin processing, but in the heat set processing of this invention, this does not increase water absorption and changes physical properties. Few. Therefore, when a synthetic fiber yarn is used as the ground yarn, it does not absorb moisture during use and is not curled or distorted, and there is no fear that molds or microorganisms will propagate.

Since it is a heat set process, the process is simple, and the manufacturing efficiency can be improved and the cost can be reduced.

When the core-sheath composite yarn is used as the synthetic fiber composite yarn and the sheath part is made of the low melting point synthetic fiber, only the sheath part is heat set, so that the heat setting process is easy and the reinforcing effect by the core part is obtained. Therefore, the yarn is not broken and the durability is improved.

As described above, it is possible to provide a roll screen having a very practical value, which has actions and effects that cannot be expected from conventional roll screens.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a roll screen according to the present invention, FIG. 2 is an enlarged view of a screen material used for the roll screen, and FIG. 3 is a composite used for a part of weft. It is an expanded sectional view showing an example of a fiber compound thread. 1 ... Screen ground, 2 ... Winding part 9 ... Warp, 10 ... Weft 11 ... Synthetic fiber composite yarn

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Claims (3)

[Scope of utility model registration request] 1. A roll screen having a screen material made of a knitted fabric or a woven material and a winding portion of the screen material, wherein synthetic fiber composite yarns made of materials having different melting points are used every suitable number of weft yarns of the screen material. A roll screen, wherein the screen material is heat set at a temperature equal to or higher than the softening point of the low melting point synthetic fiber of the composite yarn. 2. The roll screen according to claim 1, wherein the ground yarn other than the synthetic fiber composite yarn in the screen fabric is a synthetic fiber yarn having a higher melting point than the low melting point synthetic fiber of the composite yarn. 3. The roll screen according to claim 1, wherein the synthetic fiber composite yarn is a core-sheath composite yarn, and the sheath portion is a low melting point synthetic fiber.