JPS58174651A - Production of polyolefin flat yarn mesh cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a mesh cloth coarsely woven from flat yarns.

Mesh cloth, which is woven using polyoleain-based flat yarn as warp or weft, is used as a reinforcing material by laminating it with, for example, kraft wrapping paper. In the production of this mesh cloth reinforced kraft paper, the mesh cloth itself has no stiffness, that is, it bends easily in the direction of force application, which causes troubles due to the formation of non-bonded areas and wrinkles during lamination. This impairs the aesthetic appearance of the product, which in turn causes a decline in commercial value.

Therefore, in the present invention, the intersection of the warp and weft of a mesh cloth using polyoleain flat yarn is fixed, thereby making it strong and solving the above-mentioned conventional problems.

The method of the present invention will be explained in detail below with reference to the drawings.

FIG. 1 is a semi-illustrated side view of an example in which warp threads (1) are treated with adhesive. In this example, the polyoleain flat yarn warp (1) is moved from the warp beam (2) to the guide roll (3).
) to the heald surface (4).
) is provided, and a dipping roll (6) is provided therein.
An adhesive (R) is applied between the press roll (7) and the press roll (7).

The warp yarn (1) that has been treated with this adhesive is transferred to the delivery roll (9
) to the heddle surface (4), where it is woven as a mesh cloth. The woven mesh cloth Q(l) is heat-pressed by the heat-press roll Q3 when passing through the guide roll Qil. As a result, a mesh cloth in which the warp and weft are fixed can be obtained.

The above is an example in which the warp yarns are treated with an adhesive, but the weft yarns can also be treated with an adhesive in the same way. FIG. 2 is a side view of the main part of the example.

While the weft thread 03 reaches the water jet nozzle 04,
Adhesive 411 (5) is provided, and adhesive treatment is performed by a dipping roll (6) immersed in the adhesive (8) in this adhesive tank and a pressure roll (7) pressed thereto.

In this case, it is convenient if the upper part of the pressure roll (7) is brought into contact with the weft.

As the adhesive for fixing the warp and * yarns, solvent-based adhesives such as chlorinated polyethylene, chlorinated polypropylene, polyvinyl chloride, ethylene-vinyl acetate copolymer, etc. can be used. These are applied before the warp or weft is fed to the loom, but by applying heat and pressure bonding treatment after weaving, it has the function of preventing misalignment. Further, the polyolefin flat yarn used for the warp and weft is a flat yarn made of polyolefin such as polyethylene or polypropylene.

The heat and pressure treatment of the woven mesh cloth is carried out at a temperature below the melting point of the polyolefin flat yarn, but the adhesive temperature range is approximately 70 to 110°C, and the roll pressure is 20 to 60 Kf/. m is good from experience.

This will be explained in detail below using examples.

Example: When weaving a flat yarn mesh cloth using a water jet loom, a medium-low pressure polyethylene flat yarn of 300 dr and a width of 1.2 mm was inserted into the warp and weft, 6 yarns/inch for both weft and warp, and sent out from the warp beam. An adhesive bath is provided between the rolls, and the warp threads are passed through the adhesive bath from the guide roll to the dipping roll (see Figure 1).
Adhesive treatment was applied. The adhesive used was "1-Z 542 f'PHG Seal" manufactured by Toyo Ink Manufacturing Co., Ltd. (trade name: chlorinated polypropylene trichlene solvent), and the adhesive was diluted by adding 1 part to 3 parts of trichlene. It was passed through the agent solution at a speed of 1.51 n/m.

Next, after weaving by moving it as it is from the delivery roll to the heald surface, a heat-pressing roll is pressed onto a guide roll at a roll pressure of 20 Kf/m, passed through heating to 90°C, and wound around a take-up roll. It was made into a product.

The obtained product was lightly fixed at the intersection of the warp and weft, and did not shift even when some force was applied. When this material was laminated with craft wrapping paper and used as a reinforcing material, it was strong and could be used as a good mesh four-reinforced craft paper.

[Brief explanation of drawings]

1 and 2 are semi-illustrated side views. (1) Warp (2) Warp beam (3) Guide rule (4) Heald surface (5) Glue tank (
6) Dip roll (7) Press roll (8) Adhesive (9) Feed 1fi roll Ql) Mesh cloth aυ Guide roll A/ (2) Heat pressure bonding roll (to) Weft a→ Water jet nozzle or above Applicant Ishii Yuji Patent Attorney Hirozo Mori

Claims (1)

[Scope of Claims] 1. When weaving mesh cloth using polyolefin flat yarns as warp or weft, the warp or weft is treated with an adhesive before being fed to a loom, and after weaving is subjected to heat-pressing treatment to create a mesh cloth. A method for producing a polyolefin flat yarn mesh cloth characterized by preventing slippage. 2. The method for producing a polyolefin flat yarn mesh cloth according to claim 1, wherein the adhesive treatment is a treatment of dipping a chlorinated polyolefin adhesive in a trichlene solution. 3. The method for producing a polyolefin flat yarn mesh cloth according to claim 1, wherein the heat-pressing treatment is roll-pressing at a roll temperature of 70 to 110°C and a roll pressure of 20 to 60 KI/m.