JPH0725573B2 - Method for producing colored yarn for non-combustible fabric - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for producing a colored raw yarn for a non-combustible fabric by applying a desired color to a glass fiber yarn.

[Conventional technology]

In recent years, it has been pointed out that the curtains, curtains, table covers, etc. used for interior decoration burn the fastest in the event of a fire. It may occur.

Therefore, in order to solve such disaster prevention problems, attempts have been made to make the fibers completely incombustible, for example, research on fibers made of non-combustible materials, and imparting incombustibility to general fibers. Methods for doing so have been developed.

Fibers having nonflammability that have been widely known so far include glass fibers, and the woven glass fibers are applied to nonflammable curtains and electrically insulating fabrics.

However, it is difficult to apply color while maintaining the incombustibility of such glass fibers, and even if the colorant is dispersed in a resin having no incombustibility and applied to the surface of the glass fibers, only the surface layer burns. The entire product does not become nonflammable.

In addition, when a thick count raw yarn for textiles is required, the woven product is also heavy because the specific gravity of the glass fiber itself is large just by changing the count of the normal glass fiber yarn to that of a thick count. In addition, when coloring such a thick count glass fiber yarn, there is a problem that the coloring agent adheres only to the surface portion of the glass fiber yarn and cannot evenly color the inside.

[Problems to be Solved by the Invention]

It is an object of the present invention to provide a method for improving the above-mentioned drawbacks and for producing a colored raw yarn for a non-combustible fabric having a desired color while maintaining the non-combustibility of glass fibers.

Further, it is another object of the present invention to provide a manufacturing method capable of obtaining a colored raw yarn for a non-combustible fabric, which is uniformly colored even inside the glass fiber.

Furthermore, it is also an object to provide a method for producing a colored raw yarn for non-combustible fabrics, which has a relatively small specific gravity even in the case of thick count fibers.

[Means for solving the problem]

The method for producing a colored raw yarn for a non-combustible fabric of the present invention is performed by immersing a glass fiber raw yarn in a coloring liquid obtained by dissolving a slene-based pigment color in an aqueous dispersion of a urethane-based resin to perform coloring. It is characterized by

That is, when coating the glass fiber with a resin in which a slene pigment color is dispersed, various colors are applied by using a urethane resin (generally, a water-dispersible urethane synthetic adhesive). The above-mentioned product is obtained, and excellent physical properties such as nonflammability of glass fiber are retained.

The coloring liquid used in the present invention is composed of a composition containing a urethane-based resin and a slene-based pigment color, and as the urethane-based resin, one capable of forming a flexible transparent coating having high strength is used. Is preferred. Generally, a coloring liquid to which a synthetic adhesive is added is suitable.

Further, in the coloring liquid of the present invention, since the slene pigment color is contained together with such a urethane resin, the heat resistance and weather resistance of the glass fiber raw yarn after coloring become good, In particular, a slene-based pigment color having physical properties with weather resistance of grade 8 as a standard is preferable. Examples of the slene pigment color having excellent physical properties that can be used in the present invention include Resin color (manufactured by Matsui Dye Co., Ltd.). In the present invention, in addition to the above-mentioned slene pigment color, for the purpose of changing the hue, for example, mica powder, metal powder such as aluminum, etc. may be used.

Further, the present invention, in the method for producing a colored raw yarn for a non-combustible fabric described above, the immersed glass fiber raw yarn is pulled up in a state where the coloring liquid remains attached, followed by hot air drying, and thereafter,
It is characterized by heat treatment at a temperature of 120 to 140 ° C. And in the case of this method, three steps are mainly included.

This will be described below with reference to FIG.

First, in the first step, the glass fiber raw yarn (2) unwound from the raw yarn cone (1) is sent to the coloring tank A and placed in the coloring liquid (4) put in the coloring tank A. The process of being immersed,
Inside the coloring tank A, a plurality of dipping rollers (3) as shown in FIG. 1 are provided, and by this dipping roller (3), a coloring liquid (4) for the glass fiber raw yarn (2) is provided. Affinity of is improved. That is, this immersion roller (3)
Generally, it is a pair of two rollers,
The glass fiber raw yarn (2) passes between these rollers. At this time, it is preferable to adopt a structure in which the upper roller can be freely moved in the vertical direction. In such a structure, it is not necessary to adjust the gap between the rollers,
It can also be applied to glass fiber raw yarns (2) of various thicknesses.
Further, the glass fiber raw yarn (2) is pressed downward by the weight of the roller itself located on the upper side, so that the colored liquid (4)
Penetration into the inside of the glass fiber raw yarn (2) progresses, and the affinity is further increased.

On the other hand, the coloring liquid (4) to be put in the coloring tank A has a composition containing the above-mentioned urethane resin and slene pigment pigment, and its solid content concentration is about 4 to 20% by weight of the whole coloring liquid. It is preferable.

Next, in the second step, the glass fiber raw yarn (2) pulled up from the coloring tank A is guided to the inside of the hot air dryer B in the state where the coloring liquid (4) is adhered to about 70 to 90. Dry with hot air at a temperature of ℃. Normally, a plurality of drying fans (5) as shown in FIG. 1 are provided alternately inside the hot air dryer B so as to obtain uniform coloring and good drying efficiency. In this step, the excess coloring liquid is removed and the hardening of the dip-applied urethane-based resin is accelerated.

Thereafter, the glass fiber raw yarn (2) which has been dried by hot air is continuously bent at an acute angle by a wedge (6) having a V-shaped edge portion as shown in FIG. It is preferable to perform this bending process to harden the glass fiber raw material by hardening the urethane resin (2)
Can be imparted with flexibility. The number of wedges (6) used to increase flexibility is not limited, but a plurality of wedges (6) are generally provided.

Further, in the subsequent third step, the glass fiber raw yarn
By sending (2) to the heating winder C and winding the glass fiber raw yarn (2) at a temperature of about 120 to 140 ° C., the urethane resin is completely hardened and the slene type The pigment color is fixed and the colored yarn (7) is obtained.

The present invention further comprises winding the glass fiber raw yarn into a skein-like yarn and then putting the skein yarn into the net. It is also characterized in that it is immersed in a liquid, colored with stirring, dehydrated, dried, and heat-treated.

In the case of this method, in order to maintain the adhesion and plasticity of the slene pigment color, an anionic aliphatic polyester
An aqueous dispersion of polyurethane resin is used, and one having a resin solid content of about 0.1 to 1% is suitable. Further, as the usable pigment color, the same slene pigment color as in the above case is suitable, and in the coloring liquid,
Calcium silicate may be added for the purpose of adjusting the gloss of the glass fiber thread and imparting an anti-slip effect. Moreover, the addition of calcium silicate can prevent bending of the glass fiber system.

Then, in this method, as the coloring tank, a stirring tank provided with a stirring device inside is used, and the stirring is usually about 10
Do ~ 30 minutes.

By performing such stirring, the coloring liquid having a low viscosity is sufficiently permeated into the gaps of the glass fiber original yarn obtained by converging glass fibers of about 1 to 3 μm, and uniform coloring can be achieved.

The glass fiber raw yarn used in this case is dried before being immersed in a coloring liquid for the purpose of enhancing the uniformity of coloring,
It is necessary to completely remove water. Moreover, as described above, it is necessary to wind the skein yarn into a net and then put the skein into the net to fix the glass fiber raw yarn to the net at a plurality of positions at even positions so that the skein state is maintained. By fixing in this way, it is possible to prevent the glass fiber raw yarns from being disturbed and entangled with each other during stirring. As a general method in this case, as shown in FIG. 2, a cotton thread (9) is used so that the positions where the net (8) and the glass fiber original thread (2) are fixed are evenly spaced. , Fix it at 6 points.

Then, in the dehydration after stirring, it is preferable to frequently replace the colored liquid adhered to the glass fiber raw yarn, so that uniform dyeing can be achieved.

After dehydration, the colored glass fiber yarn is dried in a net at 70 ° C. for about 20 minutes, then taken out from the net and heat-treated at 130 ° C. for 3 minutes. Kneading is performed by applying a bending force to impart flexibility, and the resin adhered between the glass fibers is cured to separate the portions where the fibers are in close contact with each other. At this time, by adjusting the force and time for bending the glass fiber yarn, those having various textures can be manufactured.

The colored raw yarn for non-combustible fabric obtained by such a stirring method has improved coloring uniformity as compared with the one obtained by the above-mentioned method.

The present invention further relates to a method for producing a glass fiber raw yarn that can be used for various interior fabrics that require nonflammability by combining various glass fibers, and in particular, it is colored. By using the glass fiber raw yarn made of glass fiber and glass fiber felt, a colored raw yarn for non-combustible fabric having a small specific gravity can be obtained.

That is, a colored raw yarn for a fine count non-combustible fabric, for example, about 100 to 800
When manufacturing a denier product, a general glass fiber yarn may be used alone, or several glass fibers may be twisted and used, but especially a thick yarn non-combustible woven colored yarn, for example, 800 denier or more In the case of producing a glass fiber having a desired thickness, it is preferable to use, as the glass fiber raw yarn, a yarn made of glass fiber felt and a glass fiber yarn combined. With such a structure, the thickness can be adjusted according to the use, and the specific gravity of the fiber itself can be reduced.

Examples of the glass fiber that can be used as the raw material yarn in the present invention include roping yarn, bulky yarn, T glass yarn, felt, and the like.
Silane-treated glass fibers are aligned in the longitudinal direction to form a felt shape, which is processed to a thickness of about 2 mm at 200 to 250 g per 1 m ² , further cut into about 5 mm and twisted together with the yarn. The thickness of the raw thread.

In the present invention, when coloring is performed using a combination of glass fiber raw yarns and yarns having different qualities, it is possible to produce non-combustible fabrics having various textures and colors according to the use.

As the raw yarn obtained by the compounding yarn that can be used in the present invention, a yarn (10) made of glass fiber felt having a structure as shown in FIG. 3 serves as a core, and a glass fiber yarn is provided around the yarn. Even if the (11) is arranged so as to be wound in a spiral shape, or the yarn (10) made of glass fiber felt and the glass fiber yarn (11) are twisted with each other. Is also good. With such a structure,
Since air is woven, the specific gravity is reduced and the restoration property against bending is improved.

The yarn (10) made of glass fiber felt used here is preferably made of glass fibers arranged in the longitudinal direction.

The colored yarn for non-combustible fabric obtained by the method of the present invention using the yarn having such a structure has a very soft touch. Further, it is possible to manufacture a woven fabric having a higher pile density than the conventional one.

Colored yarn for non-combustible fabric obtained using the method of the present invention,
Utilizing its excellent non-combustibility and strength, it is mainly processed as a woven fabric and used as a surface material for various interiors.

Also, in addition to excellent non-combustibility and strength, it is also excellent in gloss,
Since it is possible to obtain fibers having the same thickness as conventional fibers other than glass fibers, it is excellent in terms of both visual and tactile sensations.

Further, by twisting the colored yarn produced according to the present invention with a colored yarn dyed in another color, it is possible to produce a bright colored yarn for non-combustible textiles, and to improve decorativeness. You can also embroider with the metal thread. Then, when these colored yarns rich in decorativeness are woven, a woven fabric having an extremely excellent color can be produced.

In the present invention, a general flame retardant, for example, a brominated flame retardant may be added to the coloring liquid for the purpose of further increasing the nonflammability.

Further, the colored raw yarn for non-combustible fabric of the present invention may be coated with a fluorine-based and / or silicon-based antifouling agent on the surface of the colored urethane-based resin layer. If done, lightfastness, nonflammability, antifouling,
It is a colored raw yarn for non-combustible textiles which has all the conditions of resistance to aging, abrasion resistance, and chemical resistance.

〔Example〕

Example 1 2% by weight of Resin color (manufactured by Matsui Pigment Co., Ltd.) as a slene pigment color and IM as a water dispersion type urethane resin liquid
PRANIL.DLN.DISP (manufactured by Bayer, solid resin content: approx. 40
%) 50% by weight of water, 50% by weight of water, and 4% by weight of Vigor DBS-60 (manufactured by Daikyo Chemical Co., Ltd.) as a brominated flame retardant were uniformly mixed to prepare a coloring liquid, which is shown in FIG. Coloring with such a dipping roller (two rollers are paired and the upper roller has a structure that can move freely in the vertical direction according to the thickness of the glass fiber thread used) Put in a tank, and in this coloring tank, glass fiber yarn (Asahi Glass Co.,
440 denier) was continuously immersed.

Next, pull out the glass fiber yarn from the coloring tank, and contact the inside of a hot air dryer (temperature: 70 to 90 ° C) in which a drying fan is alternately arranged above and below the position where the glass fiber yarn passes. In this state, the glass fiber yarn which has been dried in hot air is further bent three times continuously at an acute angle using a wedge having a V-shaped edge portion to impart flexibility to the glass fiber yarn. .

After that, the glass fiber was wound up while producing a colored raw yarn for a non-combustible fabric while performing a heat treatment using a heating winder whose winding temperature was adjusted to 130 ° C.

Further, the thus obtained two non-combustible colored yarns for a woven fabric of the present invention were twisted into a twist of 150 twists per 1 m to obtain a woven fabric yarn.

Example 2 Raw glass fiber (Asahi Glass Co., Ltd., thickness 440 denier)
After wrapping it in a skein thread, place it in a dryer at a temperature of 70 ° C for 30
It was put for a minute and dried to remove the attached water.
After that, the glass fiber raw yarn wound in a skein yarn shape is put into a net, and as shown in FIG. 2, the portions for fixing the net and the glass fiber raw yarn are arranged at equal intervals, and the cotton yarn is made. It was fixed at 6 places using.

On the other hand, Resin color (Matsui Pigment Co., Ltd.) 0.04% by weight as a slene pigment color, IMPRANI as a water dispersion type anionic aliphatic polyester / polyurethane resin liquid
L.DLN.DISP (Bayer Co., resin solids content: about 40%) 1% by weight, calcium silicate 0.2% by weight, and water 99% by weight are uniformly mixed to prepare a coloring liquid which can be stirred. I put it in the tank.

Then, the glass fiber raw yarn put in the net as described above is soaked in the coloring liquid and colored by stirring for about 20 minutes, and then frequently replaced to enhance the uniformity of coloring. While performing dehydration for about 20 minutes, the coloring liquid attached to the glass fiber raw yarn was uniformly removed.

After dehydration, the glass fiber yarn is dried at 70 ° C. for 30 minutes to cure the adhered resin component, then taken out from the net and heat treated at 120 ° C. for 3 minutes, and then,
For the purpose of preventing adhesion between glass fiber yarns and imparting flexibility, the whole glass fiber yarns were kneaded so that a bending force was applied.

The glass fiber yarn thus obtained was uniformly colored, and was very suitable as a colored raw yarn for non-combustible textiles.

〔The invention's effect〕

The colored raw yarn for non-combustible fabric obtained by using the present invention is excellent in light resistance, non-combustibility, antifouling property, aging resistance, abrasion resistance, and chemical resistance.

In addition, when the glass fiber raw yarn that has been kept in a skein state in a net is colored with stirring in a coloring liquid, in particular, a colored raw yarn for non-combustible fabric with excellent coloring uniformity is produced. can do. Moreover, when calcium silicate is added to this coloring liquid, the gloss of the glass fiber yarn can be adjusted, and an anti-slip effect can be obtained to prevent bending of the glass fiber yarn.

Further, when the glass fiber raw yarn to be colored is a yarn made of a glass fiber felt and a glass fiber yarn combined, a non-combustible woven fabric having a soft touch and a small specific gravity is used. A colored yarn for use can be obtained.

Moreover, in the present invention, since various colors of slene pigment colors can be used, colored raw yarns for non-combustible fabrics of various colors can be obtained, and obtained by weaving such colored raw yarns. Textiles are very decorative.

In the present invention, when the glass fiber raw yarn is colored, since the water-dispersible urethane resin is used as the resin base material containing the colorant, the dip coating can be performed very efficiently, It is possible to form a film on the surface of the glass fiber raw yarn in time.

[Brief description of drawings]

FIG. 1 is a diagram showing a step in a method for producing a colored raw yarn for incombustible fabric of the present invention, in which a glass fiber raw yarn is immersed in a coloring liquid, pulled up, dried and heat treated, and FIG. FIG. 3 is a view showing a state in which a fiber raw yarn is wound into a skein yarn shape, put in a net, and fixed at six places with cotton yarn. FIG. It is a figure which shows an example of the cross-section of the glass fiber thread used when doing. A: Coloring tank B: Hot air dryer C: Heating winder (1): Glass fiber raw thread cone (2): Glass fiber raw thread (3): Immersion roller (4): Coloring Liquid (5) -Drying fan (6) -Wedge (7) -Colored yarn (8) -Mesh (9) -Cotton yarn (10) -Glass fiber felt yarn ( 11) …… Glass fiber thread

Claims (4)

[Claims] 1. A non-combustible woven fabric, characterized in that a glass fiber raw yarn is immersed in a coloring liquid obtained by dissolving a slene-based pigment color in an aqueous dispersion of a urethane-based resin for coloring. Method for producing colored yarn. 2. A glass fiber raw yarn that has been immersed is pulled up in a state where the coloring liquid remains attached, and then dried with hot air,
After that, heat treatment is performed at a temperature of 120 to 140 ° C., The method for producing a colored raw yarn for a non-combustible fabric according to claim 1. 3. A glass fiber raw yarn is wound into a skein yarn shape and then put into a net, and the glass fiber raw yarn is fixed to the net at a plurality of positions so that the skein state is maintained. The method for producing a colored raw yarn for non-combustible textiles according to claim 1, characterized in that the colored raw yarn for non-combustible fabric is immersed in the coloring liquid, colored with stirring, dehydrated, dried, and heat-treated. 4. The glass fiber raw yarn as described above, wherein a yarn made of glass fiber felt is combined with a glass fiber yarn to be used. Item 1. A method for producing a colored yarn for a non-combustible fabric according to item 1.