JPH076142B2 - Method of dyeing surface fastener - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for uniformly dyeing a surface fastener in which engaging elements such as hooks or loops are planted on a base cloth.

[Prior Art] Generally, since the surface fasteners are dyed in such a state that their engaging elements are not entangled with each other or damaged, the cheese dyeing device is directly superposed with the wound ones. Or it is often performed by an over-meier dyeing device.

[Problems to be Solved by the Invention] However, when dyed by directly overlapping and winding wound materials of surface fusner, the ears may enter and overlap between the wound materials of surface fusner, and if the number of wound materials increases When the dyeing solution circulates and comes into contact with these parts, air bubbles may be removed or the flow of the dyeing solution may be impaired, causing uneven flow to cause a large number of stain spots.

[Means for Solving the Problem] The present inventor has completed the present invention as a result of various studies on a method for dyeing a surface-fusner wound in a roll shape in order to solve the above problems.

That is, the present invention is a method of dyeing a surface fastener, which comprises arranging a wound surface fastener on a liquid-permeable partition plate, stacking a plurality of the partition plates, and bringing the surface fastener and a dyeing solution into contact with each other. is there.

The partition plate used in the present invention can be a net or punching board made of metal or plastic that does not adversely affect dyeing, or a structure in which rods are radially radiated from the central portion in a wheel shape, and the shape is a disk shape, a rectangular shape. , Dish-shaped, etc.

The wound surface fastener is arranged on the partition plate. The surface fastener widely includes fasteners that engage the two surfaces by providing the hook-shaped or mushroom-shaped engaging element and the loop-shaped engaged element on separate tapes or the same tape. Here, the tape is obtained by weaving fibers. One example is what is known as Magic Tape (registered trademark). The surface fastener is back-coated with an adhesive (back surface coating) for the purpose of fixing the engaging element.
However, it is also possible to dye the back-coated surface fastener or the surface fastener provided with a large number of engaging elements on the sheet obtained by extrusion-molding the plastic.

To place the wound surface fastener on the partition plate, place the wound surface fastener with appropriate fasteners on the partition plate so that the wound surface fastener does not rewind, and place the center core in the center of the partition plate. A method of winding a surface fastener around the core,
A method in which the center hole of a roll of surface fastener that has been wound in advance is inserted into the center of the partition plate can be used.

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

In the present invention, it is possible to dye a large amount of surface fasteners at a time by stacking a plurality of partition plates in which the surface fasteners are arranged at a horizontal position. In that case, the partition plate can be a flat plate having a liquid-permeable bottom surface or a saucer shape having side surfaces. The liquid-permeable bottom surface may be a mesh-shaped one as shown in FIGS. 1 to 3, a punched perforated plate, or a wheel-shaped structure provided with a large number of support linear members radially from the center. There is no particular limitation as long as it is liquid and can carry the surface fastener. Since the partition plate is provided with surface fasteners and is laminated, it is desirable that the partition plate has a structure that facilitates lamination. FIG. 4 shows a saucer-shaped partition plate as an example thereof. The saucer should be slightly higher than the height of the surface fastener that is used for supporting during lamination so that the surface fastener is not damaged by the partition plate. It is advisable not to contact the partition with the upper partition.

Further, when flat plate-shaped partition plates are stacked, it is desirable that a proper supporting jig be attached to the peripheral portion of the partition plates to provide a partition plate interval so that the surface fastener and the upper partition plate do not come into contact with each other.

The above-mentioned partition plate is directly stacked and stored in the dyeing container, or the partition plate is stacked by using an appropriate carrier (supporting tool) and the whole carrier is housed in the dyeing container. As a specific example of the carrier, a columnar body provided with a stopper at one end is used, and the columnar body is inserted into the center of the partition plate to form a laminated body of partition plates around the columnar body, which is used as a dyeing container. Accommodate. Dyeing is performed by a conventional method by circulating a dyeing solution under normal pressure or high pressure. The circulation of the dyeing solution is carried out parallel to or perpendicular to the surface cloth of the surface fastener, from inside to outside or from outside to inside. However, many surface fastener base fabrics are extremely dense and do not allow the dyeing solution to pass through.In particular, there is no liquid permeability in the case of woven surface fasteners and plastic molding surface fasteners that have been previously coated with a back coat. It must be circulated parallel to the base cloth.

FIGS. 1, 2 and 3 are plan views showing an example of the liquid-permeable partition plate used in the present invention, and the bottom surface 1 has a mesh-shaped structure, a punched perforated plate, and a wheel-shaped structure, respectively. , With a core 2.

FIG. 4 is a perspective view of a saucer-shaped partition plate which is another example of the liquid-permeable partition plate. A saucer is formed by providing a side surface 3 around the bottom surface 1.

By providing a step on the center core or on the upper end of the side surface, when the saucer-shaped partition plates are stacked, the partition plates fit together to form a stable stack. It is also possible to stack a plurality of flat plate-shaped partition plates, which are stacked using a supporting jig, into a saucer-shaped partition plate and stack the stacked plates.

FIG. 5 is a sectional view showing an example of the dyeing device used in the present invention. A carrier 5 in which a large number of saucer-shaped partition plates 4 on which wound surface fasteners (not shown) are arranged is housed in a dyeing container 6. The dyeing solution circulates through the heater 7 and the circulation pump 8 from the top to the bottom of the partition plate or from the bottom to the top to dye the surface fastener. In the figure, the arrow indicates the flow of the staining solution.
Such a dyeing device is not limited to the one shown in the figure, and various ones may be used as necessary.

(Example) Hereinafter, the present invention will be described with reference to Examples.

Example 1 When dyeing a hook-shaped surface fastener, which was woven and heat-treated with nylon 66 original yarn, with an acid dye, a stainless steel partition plate having a large number of holes with a diameter of 10 m / m and a tape wound in advance to 150 m And after stacking it in the saucer and stacking it in 6 layers, the dyeing solution was circulated from the upper part to the lower part with an Overmeier dyeing machine and dyed, and the flatness was uniformly dyed without crushing or breaking of the hook. A tape was obtained.

On the other hand, when the same 25 m / m width tape was wound in the same way, it was passed through the center core as it was, and 6 layers were laminated and dyed under the same conditions. Staining was generated in the length direction.

Example 2 A loop-shaped surface fastener 50 woven from nylon 6 raw yarn, heat-treated, and back-coated with urethane resin.
When dyeing m / m width tape with acid dye, the tape wound beforehand to 180 m is placed in a mesh-shaped stainless partition plate and its pan and laminated in 4 layers, and then the dyeing solution is applied from the top with an overmear dyeing machine. When the tape was circulated downward and dyed, a uniformly dyed tape was obtained without any spots.

On the other hand, when the same 50 m / m wide tape was similarly wound, it was passed through the core as it was, and four layers were laminated and dyed under the same conditions.

(Effects of the Invention) By the method of the present invention, a large amount of wound surface fastener can be uniformly dyed without the occurrence of breakage of the ears and the like, and a high quality dyed surface fastener can be manufactured.

[Brief description of drawings]

1, 2 and 3 are plan views showing examples of the liquid-permeable partition plate used in the present invention, and FIG. 4 is a perspective view showing another example of the partition plate. FIG. 5 is a sectional view showing an example of the dyeing device used in the present invention. 1 ... Liquid-permeable partition plate 2 ... Core 4 ... Saucet-shaped partition plate 5 ... Carrier 6 ... Dyeing container

Claims (1)

[Claims] 1. A method for dyeing a surface fastener, comprising arranging a wound surface fastener on a liquid-permeable partition plate, stacking a plurality of the partition plates, and bringing the surface fastener and the dyeing solution into contact with each other.