JPH06287856A - Production of reinforcing material for embroidery - Google Patents

Abstract

PURPOSE:To obtain a method for stably and efficiently producing a reinforcing material for embroidery reinforced with water-soluble fiber. CONSTITUTION:A water-soluble web 12 having the strength in the warp direction, a water-soluble web 3 having the strength in the weft direction and water- soluble fiber 21 elongating in the weft direction are laminated, fixed and integrated on a hot cylinder 20. A water-soluble resin 2 is preapplied to the water-soluble fiber to form a resin film on the surface thereof and the water-soluble fiber is then fixed to the water-soluble web 3 having the strength in the weft direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a reinforcement material for embroidery used as a material for embroidery.

[0002]

2. Description of the Related Art When embroidering a thin cloth or a coarse cloth, a method is generally used in which a reinforcing material is applied to the cloth for embroidery, and the reinforcing material is melted away after the embroidery is completed.

The above-mentioned embroidery is generally carried out by an embroidery machine. At this time, the embroidery reinforcing material is laminated on tulle or the like, if necessary, and then wound around a winding shaft. Sewn on cloth. Embroidery of a long product is usually performed by alternately repeating a step of embroidering a predetermined length and a step of winding the same.

Conventionally, as a reinforcing material for embroidery, cuts substantially parallel to the stretching direction are intermittently made in a water-soluble film whose stretch ratio is increased in one direction, and the cuts are expanded to form a reticulated web, It has been proposed that a plurality of reticulated webs are superposed and integrated so that their stretching directions intersect with each other. (Japanese Utility Model Laid-Open No. 3-18194) According to this embroidery reinforcing material,
It is low in cost, has excellent dimensional stability, requires less basis weight than conventional non-woven fabrics, and has extremely preferable characteristics as a reinforcing material for embroidery.

However, this reinforcing material has a problem that it is apt to be torn particularly from a portion to be sewn with a conductive cloth due to high tension when embroidering with an embroidery machine. Therefore, as a method for solving such a problem, it is conceivable to fix and integrate reinforcing fibers to reinforce the tension direction.

By the way, as a method for producing the above-mentioned mesh-like weft-laminating laminated fabric, a Japanese Patent Publication No. 53-387 is available.
No. 83 discloses the basic technique.

According to this method, a wide width weft web cut into a length corresponding to the width of a wide width warp web is seamlessly overlaid on a running wide width warp web, and then the entire arrangement of the width weft web is adhered and fixed to a wide width weft lamination. In the manufacturing method of cloth body, attach the adhering liquid to the surface of the warp material that runs horizontally with the width equivalent to the width of the warp and weft laminated cloth, and cut it on the conveyor that horizontally circulates in the latitudinal direction of different height by intersecting this. Place the wide weft webs at regular intervals and move, and every time each cutting weft web reaches the position where it entirely overlaps the warp, the warp is instantaneously vertically moved to contact the cut weft web on the conveyor. Then, the step of adhering this to the warp and separating it from the conveyor surface is repeated one after another in accordance with the movement of the warp in the warp direction by a predetermined width. Manufacturing characterized by It is the law.

As the conveyor circulating in the weft direction, a lattice conveyor in which both ends of lattice bars arranged in parallel at right angles to the traveling direction are connected to a chain is usually used. Further, the conveyor keeps a horizontal surface in the section where the weft web is carried, and moves at a speed several% faster than the weft web supply speed. Therefore, the supplied web is pulled by the tension due to the abrasion resistance of the lattice bar, cut into a predetermined length by the cutter on the conveyor, and then moved at the same speed as the conveyor.

To manufacture the above-mentioned embroidery reinforcing material by this method, a reticulated web obtained by splitting and widening a uniaxially stretched film of a water-soluble resin film is used as the wide web. This web is lightweight and flexible, and since it is split only in the stretching direction, it tends to cause wrinkles and the like when fed on a conveyor. Therefore, the wetting web is usually coated with an aqueous deposition liquid to increase resistance with the lattice bar.

In order to insert the reinforcing fiber into the weft web by applying the above method, the reinforcing fiber may be superposed on the weft web and supplied to the weft conveyor.

By the way, the reinforcing material for embroidery must be one that can be dissolved in water for that purpose. Therefore, the above-mentioned reinforcing fiber is also a water-soluble fiber that can be dissolved in hot or hot water, such as polyvinyl alcohol fiber. It will be limited.

However, the water-soluble fibers are naturally inferior in water resistance, and when water is attached, they start to shrink quickly and the shrinkage rate is high. Therefore, in the above-mentioned manufacturing method, when the water-soluble fibers are simply inserted into the weft web and the aqueous deposition liquid is applied in a state where they are simply stacked, the water-soluble fibers cut together with the web to a predetermined length on the lattice conveyor. Immediately begins to contract. Therefore, contraction stress may cause the weft web to be dragged from its both ends, destroying the quality of the mesh, and the destruction may cause problems when the weft web is transferred to the warp web. This shrinkage of the water-soluble fibers will continue until they are laminated to the warp web and dry fixed. For this reason, there is a problem that the length of the water-soluble fiber becomes significantly shorter than the width of the warp web.

[0013]

DISCLOSURE OF THE INVENTION The inventors of the present invention have earnestly studied in view of the above circumstances, and as a result, by forming a water-soluble resin film on the water-soluble fiber in advance, it is possible that water or an aqueous solution adheres in the manufacturing process. The present invention has been completed by finding that water-soluble fibers hardly shrink, and an object thereof is to provide a method for stably and efficiently manufacturing a reinforcement material for embroidery reinforced with water-soluble fibers. There is.

[0014]

The above object of the present invention is to laminate a water-soluble web having strength in the warp direction, a water-soluble web 3 having strength in the weft direction, and water-soluble fibers 21 extending in the weft direction. In the method for producing a warp-weft laminated fabric body which is firmly fixed and integrated on a heat cylinder, a water-soluble resin 8 is previously applied to the water-soluble fiber to form a resin film on the surface of the water-soluble fiber, and strength in the weft direction is obtained. This is achieved by a method for producing a strong embroidery material for embroidery, which comprises fixing the water-soluble web 3 and the water-soluble fibers to each other.

The water-soluble web used in the present invention is formed by, for example, uniaxially stretching a film soluble in warm water or hot water, intermittently making cuts substantially parallel to the stretching direction, and expanding the cuts to form a mesh. It is a thing. Specific examples thereof include a flat split fiber web obtained by thermally stretching a film made of a polyvinyl alcohol resin in a uniaxial direction and then splitting the film.

The water-soluble fiber used in the present invention is a fibrous substance which is soluble in hot water or hot water, and is not particularly limited as long as its strength is not extremely weak, and examples thereof include polyvinyl alcohol synthetic fiber. it can.

As the water-soluble resin used in the present invention, any water-soluble resin that forms a film on the surface of the water-soluble fiber and also has an action as an adhesive and can be easily dissolved in hot water or hot water in the elution step is used. It may be appropriately selected according to the shrinkage characteristics of the water-soluble fiber. It is desirable to select a water-soluble fiber having a shrinkage ratio of 40% or more, which has excellent water-resistant adhesion. Examples of such materials include polyvinyl alcohol.

To apply the above water-soluble resin to the water-soluble fiber, there are known methods such as a method of immersing the water-soluble fiber in a solution of the water-soluble resin and a method of coating or spraying the solution of the water-soluble resin on the water-soluble fiber. It may be performed by an appropriate method.

The above-mentioned water-soluble resin solution preferably has a high viscosity at a low temperature and hardly penetrates into the water-soluble fiber. Alternatively, boric acid and a water-soluble resin solution may be applied in two steps to gel the water-soluble resin.

In order to form a film of the water-soluble resin on the surface of the water-soluble fiber to which the water-soluble resin solution is attached and to bond and fix the water-soluble fiber and the water-soluble web,
It may be dried, for example, by contacting it with a hot cylinder and drying. At this time, it is preferable to bring the water-soluble web into contact with the surface of the heat cylinder, arrange the water-soluble fiber on the outside, and dry it so that the water-soluble resin solution does not foam.

[0021]

[Function] The water-soluble resin forms a film on the surface of the water-soluble fiber, and this film suppresses the permeation of water into the water-soluble fiber.
The water-soluble fiber is suppressed from shrinking due to water adhesion.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is an elevational sectional view in the weft direction showing an example of an apparatus for carrying out the method of the present invention, and FIG. 2 is an elevational sectional view of the warp method.

The water-soluble fibers 21 are drawn out from the creel base 1, warped with a comb 4 to a 6 cm pitch, coated with a water-soluble resin solution 2, and then superposed on a water-soluble web 3, and then 130 It is dried in a hot cylinder 5 at ℃. The water-soluble resin film is formed on the surface of the water-soluble fiber, and the water-soluble fiber is adhered and fixed to the water-soluble web 3.

The above water-soluble fiber has a melting temperature of 89.
Using polyvinyl alcohol fiber with a shrinkage rate of 14%
As the water-soluble resin solution, a polyvinyl alcohol aqueous solution having a concentration of 6% was used. As the water-soluble web, a reticulated web was used in which a polyvinyl alcohol film was uniaxially stretched 5 times, split, widened, and heat set.

Subsequently, the weft material in which the water-soluble fibers are fixed to the water-soluble web is applied with the aqueous adhesion liquid 8 by the kiss roll 7, and then the pinch rolls 9 and 9 ′ are used for the lattice conveyor 1.
Sent to 1. The lattice conveyor 11 circulates horizontally,
Its circulation speed is several% faster than the feed speed of the pinch rolls 9, 9 '. Therefore, the weft material moves while being squeezed by the lattice bar, and the cutter 10 corresponds to the width of the warp material.
It is cut every 30 cm.

The cutting weft material 13 moves at the same speed as the lattice conveyor 11. There is a gap according to the difference in feed rate between the next cut weft material. Each time the front and rear ends of each cutting web overlap with both ends of the circulating multi-strand belt 15 (hereinafter abbreviated as "belt 15") that horizontally circulates upward in the longitudinal direction,
The belt retainers 14 and 14 'are actuated to momentarily move the belt 15 up and down to a position where it abuts the cutting weft.

Since the aqueous adhesive liquid 8 is applied to the belt 15 through the kiss roll 7, the cut weft material 13 contacting the belt 15 adheres to the belt 15 and is repeated to cut the cut weft material. Adheres to the belt 15 without interruption,
Move in the longitudinal direction.

In this way, the cutting weft material 13 is formed into a continuous body 16 which extends seamlessly in the longitudinal direction, which is then separated from the belt 15 by the separating filaments 19 and passes below the lattice conveyor 11 to obtain the adhesive solution 17. Warp material 12 in which the required amount is attached via pinch rolls 18 and 18 '
After that, the embossing material 22 was heated by a heat cylinder 20 at 130 ° C. and pressed by a roll 23 to laminate and integrate the warp material and the weft material to obtain an embroidery reinforcing material 22. The warp material used here is a water-soluble reticulated web similar to that used for the weft material.

The water-soluble fiber applied with the water-soluble resin did not shrink during the manufacturing process and did not cause any inconvenient phenomenon such as wrinkling of the weft material. The obtained embroidery reinforcement material had a very good appearance.

Comparative Example 1 In Example 1, after the water-soluble resin was not applied to the water-soluble fiber and the water-based web was not adhered and fixed, the water-based adhesive solution was simply superposed and then applied to the lattice conveyor 1.
1, and cut in the same manner as in Example 1 to obtain a cut weft material. At this time, the water-soluble fiber shrinks at the end of the cut weft material,
The flatness of the weft material was lost. Further, when attaching the cut weft material to the belt 15, some irregularities were observed.

In the resulting warp-weft laminated fabric, the water-soluble fibers were shrunk by an average of 11%, so that the length of the water-soluble fibers was insufficient for reinforcement.

[0033]

EFFECTS OF THE INVENTION According to the method of the present invention, a water-soluble resin is applied to the water-soluble fiber for reinforcing the weft direction, and a water-inhibiting film is formed on the surface of the water-soluble fiber. It is possible to effectively suppress the shrinkage due to.

Therefore, when a warp-weft laminated fabric body reinforced with water-soluble fibers is produced by the method of the present invention, the water-soluble fibers hardly shrink during the process, so that wrinkles and poor lamination occur. Therefore, a good embroidery reinforcing material can be efficiently manufactured.

[Brief description of drawings]

FIG. 1 is an elevational cross-sectional view in the weft direction showing a laminating portion of a device for latitudinal and weft laminating according to the method of the present invention.

2 is a vertical cross-sectional view of the apparatus of FIG. 1 in the longitudinal direction.

FIG. 3 is a plan view showing an example of a reinforcement material for embroidery obtained by the method of the present invention.

[Explanation of symbols]

 1 Creel mount 2 Water-soluble resin solution 3 Water-soluble web 4 Cushion 5,20 Thermal cylinder 6 Weft material 7,7 'Kiss roll 8,8' Aqueous adhesion liquid 9,9 'Pinch roll 10 Cutter 11 Lattice conveyor 12 Water-soluble web ( 13) Cut weft material 14, 14 'Belt retainer 15 Circulating multi-strand belt 16 Longitudinal continuum of weft material 17 Adhesive solution 18, 18' Pinch roll 19 Separation filament 21, 25 Water-soluble fiber 22 Embroidery Reinforcing Material (Woven Laminated Fabric) 23 Roll 24 Water Soluble Web

Claims (1)

[Claims] 1. A warp-weft laminated fabric in which a water-soluble web having strength in the warp direction, a water-soluble web having strength in the weft direction, and water-soluble fibers extending in the weft direction are laminated and fixedly integrated on a thermal cylinder. A method for producing a body, wherein a water-soluble resin is previously applied to the water-soluble fiber to form the resin film on the surface thereof, and the water-soluble web having strength in the weft direction and the water-soluble fiber are formed. A method of manufacturing a strong supplementary material for embroidery, which is characterized by fixing.