JPS5818488A - Both side dyeing method - 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] This invention relates to a continuous dyeing method for striped patterns.

More specifically, it is a dyeing method characterized by dyeing striped patterns on both sides of the dyed material that is continuously fed out simultaneously under the same conditions to obtain a dyed product with completely matching striped patterns on both sides. .

Traditionally, fabrics dyed with multiple stripes of different colors have often been used for tent fabrics, etc., and this type of fabric is usually dyed on one side, while the other side is undyed.

Therefore, as a matter of course, there is a distinction between front and back.
For example, when constructing a tent using such fabric, the dyed side is generally used as the front side of the tent, so when looking at the tent from a distance from the outside of the tent, a clear striped pattern can be seen. , only the unstained surface can be seen from inside the tent. Also, even if the color fades, it cannot be used inside out.

For this reason, there is a demand for double-sided dyeing of fabrics. However, in the known method, one side is first dyed, and then the remaining side is dyed after being reversed.
It is impossible to make the dyeing conditions on both sides of the dyed object completely the same, and due to the contact conditions of the dyed object with the dyeing equipment that is continuously fed out, and the expansion and contraction of the dyed object during dyeing, etc. The dyeing process does not perfectly match the lines of the striped pattern, resulting in low commercial value, and the dyeing process requires double labor, resulting in high production costs.

This invention has been able to eliminate these various drawbacks at once, and it is possible to simultaneously dye both sides of the object without much effort, and it is also possible to create sinking lines with a striped pattern on both sides under the same dyeing conditions. The present invention is intended to provide a high-quality double-sided striped pattern fabric that can be used regardless of whether it is the front or the back, and which can be used on both sides.Embodiments of the present invention will be described below with reference to the drawings. The dyeing device (1) belongs to a knife coater, and has a slit-shaped printing opening (3) protruding from the side of the bottom of a long and narrow dye box (2), and a separating plate (4) K inside the dye box (2).
Therefore, there are a plurality of dye reservoirs (5). Two sets of the dyeing apparatuses (1) are prepared, and the dyeing apparatuses (1) are arranged with their printing ports (3) facing each other, slightly shifted in the direction of movement of the dyed object, and overlapping each other.

The material to be dyed (6) is continuously fed to the dyeing device (1) by an appropriate device, passes through the feeding feed row/L' (7), and then passes through two printing ports (3). Each piece is hung at an angle in a dogleg shape so that both sides are in sliding contact, and after being dyed here, it is sent to a later stage through the feed row/l/ (8). The feeding roll (8) is provided with a surface wiping means (
9) is attached, which is a container (a) placed above the roll.
Pour the cleaning liquid into the container, and add the cleaning liquid to a moisture-absorbent sheet (see below).
One end of (11) is immersed, and the other end is suspended outside over the container wall, placed on the roll (8), and touched. The surface is kept properly leaking at all times, and the surface is wiped as the roll (8) rotates.

However, in this invention, a predetermined tension is applied, the object to be dyed (6) slides against the two printing ports (3), and both sides of the object to be dyed are dyed under the same conditions.

Therefore, if the flow of dye from the two printing ports (3) of the two sets of dyeing devices (1) is adjusted, both sides of the object to be dyed (6) can be dyed in exactly the same way, and adjacent color patterns can be synchronized. Also, both sides can be perfectly matched.

On the other hand, when dyeing both sides of the dyed object (6) at the same time as in this invention, one side of the dyed object after dyeing is inevitably stained by the feeding roll by setting an appropriate angle and applying tension at the printing opening (3). (8) will be contacted with the dye in an undried state. By optimizing the viscosity of the dye and the distance between the printing port (3) and the feed roll (8), the feed roll (8) can apply pressure to the dyed surface. Even if you touch the bottom, it is possible to minimize the amount of dirt on the roll surface. However, long pieces of dyed material rolled into rolls (
When dyeing 6) for a long time, the dye adheres to the surface of the delivery roll, albeit slightly, causing stains.

If it comes into contact with the object to be dyed (6) in this state, it will not only cause color spots and deteriorate the quality, but also make it impossible to expect the feed roll (8) to function normally. Then, the feed low/
It is required that stains due to dye adhesion to l/(8) be completely removed immediately after adhesion.

For this reason, in this invention, the feed roll (8) is equipped with a wet roll peripheral surface cleaning means (9), which is used to clean the sheet 0υ with good moisture absorption properties by constantly leaking cleaning liquid.
Although it is simply applied to the roll and left in contact with the peripheral surface of the roll, the dye immediately after adhesion can be completely wiped away.

As explained above, according to the method of the present invention, since both sides of the object to be dyed are dyed simultaneously under the same conditions, the striped patterns on both sides can be perfectly matched, and the appearance can be used regardless of the front or back side. It produces high-quality products, eliminates troubles caused by the contact between the delivery roll and the dyed surface, which is a problem with double-sided dyeing, and has excellent effects such as requiring less time and effort and lowering production costs.

[Brief explanation of drawings]

The drawings are schematic illustrations showing embodiments of the invention.

Claims (1)

[Claims] A guide having a means for dyeing the continuously delivered dyed articles by slightly shifting the position in the direction of movement of the dyed articles and moving both sides of the dyed articles into sliding contact with a pair of overlapping printing openings, and then having peripheral surface wiping means. A double-sided dyeing method characterized by passing the dye through a roll and fixing the dye.