JP3079703U - Reticulated nonwoven fabric - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is to form a large number of holes without damaging each single fiber of a heat-bonded long-fiber non-woven fabric or spun-bonded non-woven fabric, give each single fiber a tarmi, and form a mesh. This is a nonwoven fabric. This makes it easy for the tip of the hook to infiltrate the inside of the nonwoven fabric as a fastener loop material,
The entanglement with each single fiber is improved. Further, as the cleaning sheet material, dust and hairs can enter into the mesh-like holes and become entangled with the individual fibers to be attached.
Each single fiber is partially heat-bonded, has good dimensional stability, and is a long fiber. [Structure] A long-fiber non-woven fabric or spun-bonded non-woven fabric with a large number of holes perforated so that each single fiber is not damaged as much as possible. It is.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The nonwoven fabric of the present invention is suitable for a fastener loop material. In other words, since the required quality as a fastener loop material is excellent in engagement and peeling durability, and it can be manufactured at low cost, it is effective for use in disposable products, and especially for sanitary goods. Can be expected. It can also be used effectively as a cleaning sheet. The nonwoven fabric of the present invention has a large number of holes perforated throughout the nonwoven fabric, and is also provided with flexibility, so that garbage and hairs such as hair are often entangled and absorbed. Furthermore, it is a heat-bonded long-fiber nonwoven fabric, has good dimensional stability, and does not cause hair loss, so it can be used as a sanitary cleaning sheet.

[0002]

[Prior art]

 Conventional fiber fasteners have a hook portion with a monofilament tip in a key shape, or molded plastic and used with various projections on one side. On the other hand, for the loop material, there is a method of generating a loop by raising long fibers as a woven or knitted fabric. Other methods include the use of a needle punch machine to generate loops and lumps in the non-woven fabric and heat-fixing the non-woven fabric, and non-woven fabrics in which short fibers are heat-bonded, but this method lacks dimensional stability. . In general, nonwoven fabrics mainly using short fibers are used for cleaning sheets.

[0003]

[Issues to be solved by the invention]

 The fastener loop material described in the previous section has a complicated manufacturing method, requires much time, does not increase productivity, and has a limit in price. In particular, it is disadvantageous to use it for disposable products. According to the present invention, an infinite number of needle holes are efficiently formed in a heat-bonded long-fiber nonwoven fabric or spunbonded nonwoven fabric, the process is extremely simple, and production at a low price has become possible. The processing of stacking multiple sheets is more efficient. Regarding quality, by making a needle hole in the non-woven fabric, it is possible to improve the penetration of the projections of the hook material and the entanglement with the fiber, so that excellent performance in terms of engagement and peeling durability can be obtained. Was. In addition, since it is a long fiber, pull-out hardly occurs as compared with a short fiber, and it has an effect on peeling durability. Regarding the quality of the cleaning sheet, it is important to improve the adhesion of dust and hair. The nonwoven fabric according to the present invention uses a thin single fiber, and drives the needle without a projection to minimize damage to each single fiber, increase swelling, add flexibility, and add a needle hole. Opening makes it easy to attach garbage and hairs and entangle them. In addition, it is basically a heat-bonded non-woven fabric, has good dimensional stability and is a long fiber.

[0004]

[Means for Solving the Problems]

 The present invention uses a thermoformed long-fiber nonwoven fabric or a spunbonded nonwoven fabric as a base fabric, and uses a needle with a sharp tip and without a hooked portion such as a projection over the entire needle. A large number of holes are drilled so that each single fiber is not damaged as much as possible, so that the nonwoven fabric is softened without sacrificing its strength as much as possible and has a bulge. As a result, the hook material of the fastener loop material is improved in hooking, and the engagement and peeling durability are improved. In addition, as for the cleaning sheet, as with the wrapping material for fasteners, each single fiber is thin, flexible, and has a large number of holes, as well as for the attachment of dirt and hairs. Good, good hair and good effect. In addition, nonwoven fabric of heat-bonded long fibers is fundamental, and it is also a great feature that it has good dimensional stability and no hair loss. As a processing machine, an effective tufting machine was used to increase productivity and make it more cost-effective. Further, in order to increase the productivity, the processing of overlapping a plurality of sheets has a large effect.

[0005]

EXAMPLES Hereinafter, examples will be described in detail. The first embodiment is as follows. Using a polyester spunbonded nonwoven fabric of 40 g / m ² as a base cloth, using a tufting machine with a gauge of 5/64 inches, drive the thread through the needle at a pitch of 3 m / m without passing the needle through. Many open. As a result, a mesh-shaped nonwoven fabric was obtained, and a loop material for a fastener having excellent engagement and peeling durability was obtained. The second embodiment is as follows. Using a 40 g / m ² polyester long-fiber non-woven fabric as a base cloth, a 1/10 inch gauge tufting machine is used to drive the needle through the needle at a pitch of 2 m / m without passing the thread through the needle. Many opened. As a result, a mesh-like nonwoven fabric was obtained, and a nonwoven fabric which was flexible, did not cause hair loss, and had excellent adhesion of dust and hairs could be obtained.

[0006]

[Effect of the invention]

 Using a heat-bonded long-fiber non-woven fabric or spun-bonded non-woven fabric to prevent each single fiber from being damaged as much as possible, and by drilling a number of holes while maintaining strength, a mesh-shaped non-woven fabric as shown in the figure is obtained. As the fastener loop material, the hook projections were better entangled, and a material with excellent engagement and peeling durability was obtained. As for the cleaning sheet, it was possible to obtain a good nonwoven fabric with good adhesion of dust and hairs, good dimensional stability, and no hair loss. The features are that the processing process is simple and fast, and the production cost is low.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the state of the surface of a mesh-like nonwoven fabric.

FIG. 2 is a cross-sectional view of a portion of a perforated hole on a side surface of the mesh-like nonwoven fabric.

[Explanation of symbols]

 (1) is a heat-bonded long-fiber nonwoven fabric (2) is a hole formed in (1)

Claims (1)

[Utility model registration claims] The present invention relates to a method for producing a single fiber using a long-fiber nonwoven fabric and a spunbonded nonwoven fabric of a thermoplastic fiber, which have a sharp tip and are not provided with a hooked portion such as a projection over each part of the entire needle. Non-woven fabric characterized by regularly or irregularly drilling a large number of holes so as to minimize damage to