JPH0241481A - Dyeing of braids - Google Patents

Abstract

PURPOSE:To accomplish the title dyeing by wrapping braids on bobbins each provided with many penetrating holes with both the ends fitted with franges and making a dyeing using a high-pressure cheese dyeing machine to avoid the braid deformation due to the dyeing solution. CONSTITUTION:Braids are wrapped on such bobbins that franges are fitted on both of the ends of each cylindrical core form provided with many penetrating holes followed by making a dyeing in a high-pressure cheese dyeing machine. Said franges avoid the inflow and outflow of the dyeing solution through the cheese edge faces and bring the inflow and outflow through the cheese side faces, thereby preventing the braids from disturbances, getting out of shape and uneven fineness.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement in a method for dyeing strings.

<Conventional technology and problems to be solved> Conventionally, in order to dye strings, all cords were dyed in a skein state after being warmed up. Although there are highly efficient cheese dyeing machines, skein dyeing is a labor-intensive process for the following reasons.

In a cheese dyeing machine, a dyeing solution flows out in jets alternately from the peripheral wall and bottom of the tank, and this dyeing solution flows into the thread layer (string layer) of the cheese and dyes it. When the liquid flows out from the peripheral wall side, the dyeing liquid flows into the core body from the sides and both end faces of the cheese. Then the flow reverses,
When it flows out from the bottom side, the liquid flows upward from inside the cheese core to the outside. Since the high-pressure liquid flow alternately flows in reverse, liquid pressure is applied to the string layer from the inside and outside.

When flowing from the peripheral wall side of the tank, hydraulic pressure is applied from the entire outer periphery, whereas when flowing from the bottom side, hydraulic pressure is applied only from the core side. In this way, the liquid flow is sequentially reversed. Therefore, not only the direction of the liquid flow is reversed, but also the magnitude of the liquid pressure applied to one layer of cheese changes when it flows from the outside of the cheese and when it flows out from the inside. Furthermore, conventional bobbins do not have flanges on their end faces.

As a result, (1) the shape of strings, which have a softer structure than yarn, changes due to this liquid flow; Thick and thin spots may be formed on the outer diameter,
Flattened parts occur and the string loses its commercial value.

(2) The liquid flow causes the cheese to crumble and become irregularly wrapped.

For this reason, it was previously thought that strings could not be dyed using a cheese dyeing machine, and the labor-intensive skein dyeing method was used.

<Means for Solving the Problems> The present invention is a method for dyeing strings developed in consideration of the above circumstances, and is configured as follows.

That is, the string dyeing method is characterized by wrapping the string around a bobbin having flanges at both ends of a cylindrical core having a large number of through holes, and dyeing the string by placing it in a high-pressure cheese dyeing machine. It is.

<Example> Examples of the present invention will be described below based on the drawings. first,
The bobbin 1 used in this dyeing method has flanges 4.4 attached to both ends of a core body 3 having a large number of through holes 2, as shown in Fig. 8r\1, and is made of heat-resistant resin. This bobbin
A string 5 to be dyed is attached thinly to the cheese 6, and the cheese 6 is put into a high-pressure cheese dyeing machine 7. Insert cheese 6 into the stand of carry 8 and line it up. The cheese dyeing machine 7 is a conventional one,
Use it as is.

When cheese dyeing +A7 is started and the dyeing liquid flows out from the peripheral wall side of the tank 9, the dyeing liquid flows into the core body 3 from the side of the cheese 6. At this time, since the bobbin 1 according to the present invention has the flanges 4.4 at both ends as described above, the dyeing liquid does not press the end surface of the cheese 6, but flows only from the side surface. When the liquid flow is reversed and flows out from the bottom side of the tank 9, the liquid flow supports the string layer of cheese 6 from within the core body 3 of the bobbin 1 and flows outward. However, since this bobbin 1 has a flange 4.4 on the end face, the liquid flow flows out only from the side of the cheese 6. That is, the flow is completely opposite to when it flows out from the peripheral wall of the tank 9. Therefore, although the direction of the liquid pressure applied to the string layer of the cheese 6 is alternately reversed, such as to the outside and the inside, the liquid pressure does not change. As a result,
Since the effects of the positive liquid on the string layer cancel each other out, the string layer does not become disordered or lose its shape, resulting in thick and thin layers, unlike in the past.

<Effects of the Invention> As explained above, the present invention makes it possible to dye strings using a cheese dyeing machine, which could not be used in the past, by using a flanged bobbin as a bobbin for wrapping strings. The effect is very large.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a bobbin used in the present invention, and FIG. 2 is an explanatory view showing a cheese dyeing machine. 1- Bobbin 2- Through hole 3- Core body 4- Flange 5- String 6- Cheese dyeing machine application agent Hisashi Matsumoto

Claims (1)

[Claims] 1. A method for dyeing strings, which is characterized by winding strings around a bobbin with flanges attached to both ends of a cylindrical core having a large number of through holes, and placing the strings in a high-pressure cheese dyeing machine for dyeing.