JPH0625981A - Method for continuously dyeing carpet - Google Patents

Abstract

PURPOSE:To obtain a method for continuously dyeing a carpet in which multicolored dyeing in the same bath can be carried out without uneven dyeing in carpet raw fabric in a continuous length. CONSTITUTION:The method for continuously dyeing a carpet is to run carpet raw fabric 1 in a continuous length having anionic or cationic dyeing sites in the longitudinal direction, control the temperature of a dye liquor (S) containing a cationic dye and an acid dye mixed therein to 50-100 deg.C and apply the dye liquor (S) controlled to 50-100 deg.C to the carpet raw fabric 1 just before entry of the carpet raw fabric 1 into a steamer 9 for fixing the dyes.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a continuous dyeing method for carpets.

[0002]

2. Description of the Related Art A long-sized carpet stock having anionic and cationic dyeing seats is run in the longitudinal direction and is dyed with a dyeing solution containing a mixture of a cationic dye and an acid dye in a dyeing bath. As a continuous dyeing method performed on the original fabric of the carpet, conventionally, the dyeing solution is kept at room temperature (about 15 to 25 ° C.),
After being applied to the carpet original fabric, it was passed through a dye fixing steamer filled with saturated steam at 100 ° C (normal pressure) to fix the dye.

[0003]

However, the original fabric of the carpet is heavy, and when it enters the steamer, the temperature of the steamer is lowered and the steam state is changed.

Due to this initial steam state change, uneven dyeing (ending) was caused due to the difference in color between the beginning and the end.

The dye liquor applied (applied) to the original fabric is
Although the temperature was gradually raised in the steamer, foaming and the like occurred in the dye liquor, the dyeing timing was difficult, and a color difference in the width direction and the front-back direction occurred.

Further, a chemical agent such as a sizing agent is required to prevent frosting (whitening of the hair tips).

[0007] Therefore, an object of the present invention is to provide a continuous dyeing method for a carpet, which is capable of dyeing a carpet original fabric without causing uneven dyeing and does not require a chemical agent such as a sizing agent.

[0008]

In order to achieve the above-mentioned object, a continuous dyeing method for a carpet according to the present invention is a method for producing a long carpet raw fabric having anionic and cationic dyeing seats. In a continuous carpet dyeing method in which a dyeing solution containing a mixture of a cationic dye and an acid dye is dyed on a carpet raw material while running in the same direction, a carpet raw material running in the longitudinal direction is used. Immediately before entering into the dye-fixing steamer, the dye liquor whose temperature is controlled at 50 to 100 ° C. is applied to the original carpet.

[0009]

[Function] The dyeing applied to the original carpet is 50-
Since the temperature is controlled to 100 ° C., when this carpet raw material enters the dye fixing steamer after being applied, there is almost no decrease in temperature inside the steamer. That is, the steam state does not change.

Further, the dye applied to the original fabric does not foam.

[0011]

The present invention will be described in detail below with reference to the drawings illustrating the embodiments.

In FIG. 1, reference numeral 1 denotes a long carpet stock having anionic and cationic dyeing seats, which runs in the longitudinal direction as indicated by arrow A. That is, the original fabric 1 is woven with a different dyed yarn composed of a yarn having an anionic dyeing seat and a yarn having a cationic dyeing seat.

The raw fabric 1 is passed through a first meandering correction machine 2, a pre-steamer 3, a second meandering correction machine 4, and a first tank 5,
The original fabric 1 is passed through a dyeing liquid applying machine 6 for applying the dyeing liquid S.

As the first tank 5, for example, Jet Bulker (trade name) manufactured by Custer Company (Germany) is suitable.

The dye S is a mixture of a cationic dye and an acid dye, and an anti-agglomeration agent composed of a high ethylene oxide adduct, and (d) in Table 1.
The slow-dyeing agent shown in (e) or (f) is mixed. The items (a), (b) and (c) shown in Table 1 are conventionally used slow-dyeing agents. The numerical values in Table 1 show the contents of each adduct.

[0016]

[Table 1]

The dyeing machine 6 is provided with a dyeing supply roller 7 and a gutter 8 projecting obliquely downward from the roller 7.
, And the dye solution S from the dye solution supply roller 7 is dropped through the gutter 8 onto the original carpet 1 running in the longitudinal direction.

The size of the gutter 8 in the width direction (that is, the direction orthogonal to the longitudinal direction of the original carpet 1) is set to be substantially the same as or slightly larger than the size of the original fabric 1 in the width direction. It is applied over the entire width of anti-1.

Further, in the dyeing liquid applying machine 6, a dyeing liquid feeding device (not shown) for supplying the dyeing liquid S to the roller 7 and a temperature control of the dyeing liquid S to a predetermined temperature (50 to 100 ° C.). A temperature controller (not shown) for controlling the temperature is provided.

This dyeing liquid feeding device comprises a roller 7
Then, the dye S is uniformly supplied in the width direction.

Therefore, the dye solution S, the temperature of which is adjusted to 50 to 100 ° C., drops onto the original fabric 1 and surely adheres thereto.

By the way, when a cationic dye and an acid dye are mixed in the same bath, if the dyeing liquid temperature is raised to a high temperature (50 to 100 ° C.), agglomeration occurs, and there is a tendency for contamination and precipitation in the can. .

However, in the present invention, since the dye S is mixed with the coagulant inhibitor, the dye temperature is 50 to 50%.
No aggregation occurs even at 100 ° C.

If the dyeing liquid temperature is high, the dyeing liquid containing the slow dyeing agent shown in (a), (b) or (c) of Table 1 may be applied to the original fabric 1 to give the initial dyeing condition. Due to the strike, about 50% of the dye reacts with the fiber within a few seconds after applying the dye liquor S, causing uneven dyeing liquid supply immediately.

However, in the present invention, since the dye S is mixed with (d), (e) or (f) a slow-dyeing agent, it is possible to control the initial strike, which causes uneven dyeing. It can be lost.

Next, the original fabric 1 to which the dye liquor S is attached passes through a dye fixing steamer 9 provided adjacent to the dye liquor applicator 6.

As the steamer 9, a loop-type steamer is used, which is filled with saturated steam at 100 ° C. (normal pressure).

When the original fabric 1 enters the steamer 9, the dye solution S has the positive ions of the cationic dye enter the cationic dyeing seat of the original fabric 1 and the negative ions of the acid dye are original. The dye is fixed in the anti-anionic anionic dyeing seat, and the dyeing bath S is used for heterochromatic dyeing in the same bath.

In this case, however, since the dye liquor S attached to the raw fabric 1 is temperature-controlled at 50 to 100 ° C., even when the raw fabric 1 enters the steamer 9, the steamer The variation in the steam state within 9 is extremely small, and uneven stain due to the steam state variation does not occur.

The raw fabric 1 discharged from the steamer 9 enters a second tank 10 for washing the raw fabric 1 with water.

The original fabric 1 washed with water in the second tank 10 is the first
It passes through the dehydrator 11 and the second dehydrator 12.

That is, in this case, a squeezing roller is used as the first dehydrator, water is squeezed out by the first dehydrator 11, and continuously squeezed by the second dehydrator 12 (vacuum dehydrator). Dehydrate.

The original fabric 1 is composed of the second tank 10 and the first dehydrator 11
Between the first dehydrator 11 and the second dehydrator 12, and the spray 14 is applied.

Next, the raw fabric 1 discharged from the second dehydrator 12 enters the dryer 16 (hot air drying furnace) via the third meandering correction device 15.

Then, after being sufficiently dried by the dryer 16, it is accumulated as a carpet by the accumulator 17.

In FIG. 1, 18 is a rubber spatula brush provided between the third meandering correction device 15 and the dryer 16, and 19 is a circle cutter provided between the dryer 16 and the accumulator 17.

Therefore, in the carpet dyed as described above, since the initial steam state in the steamer 9 does not fluctuate, the occurrence of uneven dyeing (ending) due to the difference in color between start and end is suppressed. .

Since the temperature of the dye liquor S is adjusted to 50 to 100 ° C., dyeing starts at the time of adhesion (application), and the steamer 9
The difficulty in dyeing timing due to dyeing is eliminated and uniform dyeing is possible.

Further, without using a medicine such as a sizing agent,
Frosting can be prevented, and the dyeing liquid S can have a simple chemical composition.

FIG. 2 shows another dyeing liquid applicator 20, which uses a so-called dipping method (Pat method).

That is, the tank 21 containing the dye S and the tank 21
And a roller 22 disposed therein.

Therefore, the original fabric 1 running as shown by the arrow is
It is dipped in the dye liquor S in 21 and the dye liquor S is applied to the original fabric 1. Even if this dye liquor applicator 20 is used, the carpet original fabric 1
Can be dyed.

[0043]

Since the present invention is configured as described above, it has the following effects.

The variation in the initial steam state in the dye fixing steamer 9 is extremely small, and it is possible to suppress the occurrence of uneven dyeing (ending) due to the difference in color between the beginning and the end.

Dyeing starts when the dye S is attached (applied), and uniform dyeing is possible.

Since it is not necessary to use a chemical agent such as a sizing agent, the dyeing liquid S can have a simple chemical composition, and the cost of waste liquid treatment can be reduced.

[Brief description of drawings]

FIG. 1 is a process explanatory view showing an embodiment of the present invention.

FIG. 2 is a simplified diagram showing a dyeing liquid application machine.

[Explanation of symbols]

 1 Carpet original 9 Steamer S dye for fixing dye

Claims (1)

[Claims] 1. A dyeing and dyeing bath with a dyeing liquid S in which a cationic dye and an acid dye are mixed while running a long carpet raw fabric 1 having anionic and cationic dyeing seats in a longitudinal direction. In the continuous carpet dyeing method in which the carpet raw fabric 1 is dyed, immediately before the carpet raw fabric 1 running in the longitudinal direction enters the dye fixing steamer 9,
A continuous dyeing method for a carpet, which comprises applying a dyeing solution S, the temperature of which is controlled at 50 to 100 ° C., to the original carpet material 1.