JPS6113019B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fur-like napped product, in particular a fur-like napped product having ombre-colored napped hair.

Products with raised hair, such as cut pile or loop pile, have a unique and diverse appearance and feel.
Widely used.

One purpose of producing these pile products is to obtain fur-like products. However, as is well known, natural fur has a very complex, subtle, and highly colored form, and it has been almost impossible to artificially produce something similar. For example, most natural fur has extremely precise raised hairs with different colors at the base, center, and tip. Traditionally,
In order to dye the base of the pile of pile products, dye is infiltrated from behind the base fabric, and in order to dye the tip of the pile, a roller or the like is used to apply a paste containing dye, such as a printing paste. Some methods have been proposed, such as applying something like this or dipping the tip in a dye solution. However, with these methods, it is extremely difficult to uniformly apply the dye to the pile, and may even be practically impossible.

For example, it is extremely difficult and almost impossible to achieve uniform and controlled dyeing by infiltrating the dyeing solution from behind the base fabric or by immersing only the tip of the pile in the dyeing solution. This is because in pile products, the piles are in contact with each other or bundled together, and capillary tubes are formed between the piles, and the staining solution diffuses irregularly to unintended locations due to capillary action, causing contamination. If a sizing agent is used in the staining solution to increase its viscosity in order to induce capillary action, it becomes extremely difficult to apply such a viscous material uniformly to the pile, which tends to fall, only in the desired areas.

Therefore, many fur-like products obtained by conventional methods do not have the complex colors of natural fur;
It remains a low-grade imitation.

A first object of the present invention is to provide a fur-like raised pile product that has a high degree of color that is comparable to or even better than that of natural fur.

A second object of the present invention is to provide a fur-like napped pile product having high fashionability and design. That is, the fur-like raised product of the present invention is composed of raised piles with a single yarn fineness of 100 denier or less, and at least a portion of the raised piles is colored gradually changing in the length direction, and the color is It is characterized by a blurred coloring in which the change starts from a point at a substantially constant distance from the base fabric and ends at a point at a substantially constant distance 4 mm or more from that position.

Here, blur coloring means that the color (brightness, saturation, hue) gradually changes over a certain range (blur width), and there is a considerable color change (difference) between the start and end points of the change. Coloring that looks like this.

FIG. 1 shows an example in which the tips of the stinging hairs are light colored, the roots are dark colored, and the color density gradually increases from the intermediate surface AA' to the surface BB'. In Figure 1, plane AA' is the starting point of the coloring change, and plane
BB′ is the end point of the change. (Of course, it can be said that surface BB' is the starting point and surface AA' is the ending point.) The blur coloring width is the distance between surface AA' and surface BB'. plane AA′ and
The color change with respect to the BB' plane is a change with a gradient (for example, a dye concentration gradient), but this gradient can of course be freely selected depending on the purpose. for example,
It may be a linear gradient, a curved gradient, a zigzag or other irregular gradient, but the gradient increases or decreases as a whole from the starting point to the ending point.

The starting and ending points of the color change must be substantially uniform (constant). For example, in Figure 1,
The starting point of the color change of individual stinging hairs is approximately above plane AA′, although there is some variation. If the start and end are irregular or the variation is too large, the blurring effect will be lost, giving a dirty and contaminated impression. In order to give a uniform and high-class appearance, for example, the variation should be within ±30% of the distance from the base fabric (average distance), especially within ±20%.
Most preferably, it is within ±10%. Similarly, this variation should be within ±5mm, especially ±
It is desired that it be within 3 mm, most preferably within ±2 mm.

Naturally, the starting and ending points of the color change, that is, the colors at both ends of the blurred color, have different colors. The effect of blurring cannot be recognized unless the color difference is such that it can be distinguished from other colors with the naked eye. The difference in color is, for example, brightness V1 or higher in the Munsell symbol,
Saturation C2 or higher or hue H2.5 or higher is sufficient. In particular, if there is a difference in brightness of 2 to 8, saturation of 4 to 10, or hue of 5 or more, the colors at both ends of the blurred coloring will be clearly distinguished, and the blurring effect will become clear.

The color change in the blurred portion can be obtained by dyeing or bleaching in a gradient manner along the length of the pile using the method described below. Therefore, it is easiest to change the amount of dye adsorption in a gradient manner.
When the amount of dye adsorption changes, the brightness and saturation change, resulting in the most common blur. In order to change the color, it is necessary to change the type of dye, etc., and complex operations are required, but the resulting product has a very complex, so-called iridescent appearance.
It is possible to obtain products with a high degree of design or functionality that is not found in natural fur. Of course, it is also possible to change two or more of brightness, hue, and saturation at the same time.

Distance between the start and end points of color change (blur width)
must be 4 mm or more, preferably 5 to 60 mm. If this blur width is small, there will be no blurring effect, which is a soft change in color, and it will be perceived as a sudden change in color. This gradation width is preferably 20% or more, especially 30% or more of the pile length because it gives a soft color effect.

In general, most fur consists of many thin, short fluffs (for example, thousands to tens of thousands of hairs per ¹ cm2) and thick, long hairs.
It consists of a relatively small number of prickly hairs (for example, several tens to several hundreds ^per cm2), and advanced artificial pile products often have a double or more multilayer structure of fluff and prickly hairs. FIG. 1 is a schematic diagram of a pile product in which fluff 2 and prickly hairs 3a are applied to a base fabric 1 by flocking, piling, or raising. In the figure,
The stinging hair is drawn thicker than it actually is to show the blurring effect. In many practical natural and artificial fur products, the fluff is of the order of 1 to 10 denier, especially 1.5 to 6 denier, and 10 to 40 mm, especially 12 to 30 mm in length. Similarly, the stinging hair is 15 to 100 denier, especially 20 to 60 denier.
Denier, length 15-60mm, especially about 20-50mm. Of course, there are also products with only prickly hair or fluff, in which case they are 1.5 to 50 denier and 15 to 60 mm long.
A certain degree is often used.

In the present invention, the gradation coloring is performed on one or both of the prickly hair and the fluff. FIGS. 1 to 3 each show an example in which the bristles 3a, 3b, and 3d are colored in a blurred manner. Although the fluff 2 is not shown, it may of course be dyed in a shading manner.

In the present invention, at least a portion of the pile is colored in a shading manner. FIG. 1 shows an example in which all of the bristles 3a are colored in a blurred manner. In FIG. 2, one part 3b of the stinging hairs is colored in a blurred manner, but the other stinging hairs 3c are colored differently. In other words, stinging hair 3
In b, the tip is dark, the base is thin, and the middle is blurred. The starting point of blurring is surface CC', and the ending point is DD'. On the other hand, the tips and center of the stinging bristles 3c are light colored, and the roots are dark colored. Similarly, in FIG. 3, the central part of the stinging hair 3d is dark-colored, the tip and root parts are light-colored, and the middle part between the planes EE' and FF' and between the planes GG' and HH' The areas between are blurred and colored. The entire stinging hair 3e is colored in a dark color. A product consisting of two or more types of raised hairs with different colored states as shown in FIGS. 2 and 3 can be obtained by using two or more types of fibers with different dyeing or bleaching properties. For example, fibers exhibiting different adsorption properties for the same dye can be used in combination. For example, it is possible to combine a material that adsorbs acidic dyes but not basic dyes with a material that adsorbs basic dyes but does not adsorb acidic dyes. Complex and sophisticated products can be obtained by cleverly combining two or more types of piles with different colored states obtained in this way. Furthermore, two or more types of piles with different colors are arranged regularly or irregularly (ingeniously) on the base fabric.
By arranging them, it is possible to give a sophisticated appearance similar to or even better than that of natural fur.

Although FIGS. 1 to 3 show examples with only one type of shading-colored prickly hair, products having two or more types of shading-colored erect hairs also have an excellent appearance and are useful.

In the product of the present invention, at least a portion of the pile is colored in a shading manner. Of course, all the piles may be colored in a blurred manner. On the other hand,
If there are too few blurred objects, the effect of blurring will not be noticeable. In order for the shading effect to be visually recognized, it is preferable that at least 10% (number) of the prickly hairs or fluffs, particularly at least 20%, most preferably at least 30%, be shadingly colored. Of course, in products where there is no distinction between fluff and fluff, all piles may be considered to be fluff (or fluff). Similarly, for loop pile products, at least 10% of the pile, especially at least 20%, most preferably at least 30% of the pile.
It is preferable that at least % is colored in a blurred manner.

As a result of intensive research into a method for manufacturing products with shading colors like the one of the present invention, the inventors of the present invention have found that by applying an external force such as centrifugal force to a pile product to make the pile stand up, and applying a dyeing solution or a decoloring solution to the upright pile. proposed a method of contacting the target (patent application 1983-
No. 91409).

FIG. 4 is an explanatory diagram showing a specific manufacturing method of the product of the present invention. A base fabric 1 having a pile 3 is attached to an inner tube 4. The inner cylinder 4 and the outer cylinder 5 are connected to a shaft 10
It rotates around and gives centrifugal force. The pile stands up perpendicularly to the base fabric due to centrifugal force. On the other hand, the outer cylinder holds the dyeing solution 6, and the pile 3 contacts the dyeing solution 6 on the outside of the cylindrical surface 7. 8 is space. Since the staining solution is strongly pulled outward by centrifugal force, it is prevented from entering the space 8 due to capillary action. A dyeing liquid or the like can be supplied to the outer cylinder 5 from an inlet 11 through a pulp 12. On the other hand, the dyeing solution in the outer cylinder 5 can be discharged from the outlet 13 via the pulp 14. By manipulating the pulps 12 and 14, the liquid level 7 of the staining solution 6 can be freely controlled.

For example, by first filling the dyeing liquid up to surface 9 and then gradually raising the level of the liquid supplied from pulp 12 to surface 7, the tip of the pile 3 can be darkened.
Gradient staining can be done in a blur pattern from the tip to the center.
In this way, after dyeing while keeping the liquid level at a certain position (blurring start point), the liquid is then replenished or released to gradually move the liquid level to reach another position (blurring end point), It can be dyed in a blur. In this method, the adsorption concentration of the dye gradually changes in the blurred area, and the brightness and chroma change.

In the same way, by manipulating the pulps 12 and 14 to change the concentration and type of dye in the dye solution, it is possible to achieve a more complex and sophisticated gradation dyeing in which the hue, saturation, etc. are changed.

Instead of a dyeing solution, a decolorizing solution, i.e., a solution containing a bleaching agent that decomposes or chemically changes the dye, or a dye extraction solvent can be used to gradually decolorize the previously dyed pile and create a shading color. .

FIG. 5 shows an example of another method for treating piles erected by centrifugal force. In FIG. 5, the inner cylinder 4 and the outer cylinder 5 rotate in the same manner as in FIG. 4, and apply centrifugal force to the pile 3. Base fabric 1 is inner tube 4
The two liquids 6a and 6b are held in the outer cylinder 5 and rotated. The liquid 6b has a higher density than the liquid 6a, and the two liquids do not mix or dissolve with each other. The liquid level XX' can be changed by increasing or decreasing the amount of the liquid 6a, but it can also be similarly changed by increasing or decreasing the amount of the liquid 6b.
The liquid level YY' can be changed by increasing or decreasing the liquid 6b. In any case, by using a dyeing liquid or a decolorizing liquid as the liquid 6a, controlling the liquid levels XX', YY' by increasing or decreasing the liquid 6b or/and the liquid 6a, and gradually moving them, the pile 3 can be moved as desired. It is possible to dye or decolorize in a gradient from the position to any position. In this way, the blurring start and end points and the blurring gradient (rate of change) can be controlled arbitrarily and uniformly.

The fur-like raised pile product of the present invention was almost impossible to manufacture in the past, but the fur-like raised pile product of the present invention, which can now be easily obtained by the method described above, is extremely sophisticated and complex. It has an aesthetic appearance that is equal to or better than natural fur. Natural fur cannot be freely controlled in color, but as mentioned above, the product of the present invention can have color control as desired, so it can have a design that is better than that of natural leather. I can do it.

EXAMPLE 1 The present invention will be specifically explained with reference to Examples. Example 1 P ₁ is a polymer obtained by copolymerizing 92% (by weight) of acrylonitrile, 7% of methyl acrylate, and 1% of sodium allylsulfonate. Acrylic nitrile
_P2 is a copolymer of 89% methyl acrylate, 10% methyl acrylate, and 1% sodium allylsulfonate. Polymers P ₁ and P ₂ were each dissolved in dimethylformamide (DMF), and wet composite spinning (side-by-side composite,
The composite ratio was 1/1). The spun yarn is stretched 8 times in water at 100°C, then shrunk by 15% in water at 100°C, and dried in air at 120°C to form an acrylic composite filament (120d) with latent crimpability. /
100f) got _F1 .

Filament _F1 is used for the pile yarn, 6 nylon filament (150d/40f) F2 is used for the ground yarn,
I got 1 yen for cut pile fabric CP. The pile length of CP1 is
18mm, the pile single yarn density is approximately 10,000 yarns/cm ² .

Polyester _P3 is a polyester obtained by copolymerizing 95% by weight of an ethylene terephthalate component and 5% by weight of polyethylene glycol having a molecular weight of 600. Polymer P ₃ (containing 0.6% titanium oxide) is melt-spun and 100%
Stretched 3.5 times at ℃, followed by heat treatment at 145℃.
I got 120d/3f filament F ₃ .

Filament F ₃ was flocked to pile fabric CP1 by the tufting method at a single yarn density of about 400 pieces/cm ² to obtain cut pile fabric and L-pile fabric CP2 with a pile length of 30 mm. CP2 is a double-structured pile product in which the pile made of filament _F1 corresponds to fluff, and the pile made of filament _F3 corresponds to prickly hair.
The stinging hairs are coarse and hard and have poor appearance and feel. Therefore, C.P.
The roots and tips of the stinging hairs were thinned using the method shown in Figure 5. The pile fabric CP2 is attached to the inner cylinder 4 with a diameter of 1 m, and it rotates 600 times with the outer cylinder with a diameter of 1.2 m.
Rotate at a speed of 1 minute, and the pile will be erected by centrifugal force.

Next, a mixture of carbon tetrachloride and liquid paraffin with a specific gravity of 1.2 was filled to a position 15 mm from the base fabric, followed by 5% caustic soda and 0.5% alkaline hydrolysis accelerator (Hipposha Yushi Kogyo DYK-1125). The aqueous solution was filled up to a position 2 mm from the base fabric. That is, in FIG. 5, the liquid 6a is an alkaline aqueous solution, the liquid 6b is a carbon tetrachloride/liquid paraffin mixture, and the plane XX' is located at a point 2 mm from the base fabric 1,
The position of plane YY' is 15 mm from base fabric 1. At the above location, the hair was treated with an alkaline aqueous solution at a temperature of 70° C. for 90 minutes to partially dissolve the roots of the stinging hairs and reduce their thickness to approximately 1/2 (weight). Next, remove the carbon tetrachloride mixture and make sure that the level of the alkaline aqueous solution is 30 mm above the base fabric.
Fill the alkaline solution to a position of It was lowered to a position 30 mm from the cloth. Thereafter, all the alkaline solution was removed and the fabric was thoroughly washed with water to obtain a pile fabric CP ₃ in which the root and tip portions of prickly hair (consisting of filament F ₃ ) were narrowed.

Next, the prickles of the pile fabric CP3 were dyed in a shading manner.
First, CP3 was dyed with an aqueous solution of a gray basic dye (Bayer Japan, Astrazon Gray BL) at 100 °C for 30 min.
The pile (fluff) of the alkaline composite yarn was dyed in light gray (dye adsorption amount: 0.1% owf).
Next, follow the method shown in Figure 5, except that as liquid 6b, a tetrachlorethylene/liquid paraffin mixture (density
1.3) and an aqueous solution of a black disperse dye (Nippon Kayaku, Kayalon polyester Black T) as liquid 6a at 98°C. Liquid level of staining solution 6a
XX′ was aligned with the base fabric, the liquid level YY′ of the tetrachlorethylene mixture was aligned with the position 10 mm from the base fabric, and dyeing was carried out for 10 minutes. Next, tetrachlorethylene was gradually released and the liquid level YY' was reduced to 1 on the base fabric in 10 minutes.
The dyeing solution was added at the same time to keep the solution level XX' at the base fabric level. After dyeing, the fabric was washed with water to obtain a pile fabric CP4 that was dyed in a shading manner. The tips (10mm) of the CP4 bristles are slightly grayish white (lightness approx. 8.5), and the roots (10mm) are dark gray (lightness approx. 4), and are 10mm from the base fabric (color change). In the middle part from the starting point (starting point) to 20 mm (end point), the lightness changed in a gradient from 4 to 8.5, resulting in a beautiful ombre dyeing as shown in Figure 1.

The tip of CP4 is made of tetrachlorethylene/
It is dyed extremely thinly by a very small amount of disperse dye dissolved in the liquid paraffin mixture, but if pure white is required, only the tip can be dyed using the method shown in Figure 4. For example, the tip 10 mm can be dyed at 110℃. By immersing in DMF for 15 minutes, the disperse dye can be extracted and decolorized, resulting in a product with excellent whiteness.

A raised product like CP4, which has been dyed in a shading manner, has not been available in the past. For example, when manufacturing a pile product using fibers that have been previously dyed with a shading pattern, the shading state will be irregularly disordered, and a well-balanced product as shown in Figure 1 will not be obtained, but a product that will be recognized as a mixed color. It will be done. Products obtained by the printing method also have poor uniformity. That is, the start and end points of the blurring are asymmetrical, and the color change itself does not transition smoothly, giving an impression of being contaminated.

Example 2 The prickly hair of the pile fabric CP3 of Example 1 was dyed using the method shown in FIG. 4 so that the tip part is dark and the root part is light in color, as shown in prickly hair 3b in FIG. 2. i.e. diameter 1
Attach CP3 to the inner tube of the tube, rotate it at a speed of 600 rpm, and rotate the outer tube (diameter 1.2 m) holding the staining solution at the same rotational angular speed.

Black dye (Nippon Kayaku, Kayalon, pulyester)
Fill the hair with a 0.05% aqueous solution (98°C) of Black T) up to 10 mm from the tip of the bristles and dye for 10 minutes, then gradually add the dyeing solution from pulp 12 to raise the liquid level and dye from the base fabric in 5 minutes. The dyeing solution was gradually released from the pulp 14 until it reached a point 20 mm from the base fabric in 5 minutes, and then the dyeing was stopped.

The resulting pile fabric CP5 has a bristle tip of approximately 10 mm.
It was very beautiful, with black (brightness approx. 1.5), about 10 mm of the base being white (brightness approx. 9.0), and 10 mm of the middle part being evenly dyed.

Example 3 For 100 parts of ethylene terephthalate component,
Ethylene sulfoisophthalate component (sodium salt) 3 mol%, polyethylene glycol (molecular weight
600) _P5 is a polyester copolymerized with 3% by weight. Filament _F4 is a drawn system of 120 denier/3 filaments obtained by spinning and drawing P5 in the same manner as filament _F4 of Example ₁ .

The cut pile fabric CP1 of Example 1 was coated with the filament _F3 of Example 1 by the tufting method to increase the pile length.
The filament was 40 mm long, with an average density of 300 filaments/cm ² , and the above filament F ₄ was also implanted at a density of 200 filaments/cm ² . Filament F ₃ and filament F ₄ were not mixed on average, but were grafted (tufting method) so that there were more piles of F ₄ in some areas and more piles of F ₃ in other areas.

The resulting cut pile CP6 has a fluff made of acrylic composite yarn F ₁ , a pile length of 18 mm, and a pile density of approximately 10,000 pieces/cm ² , and a pile length of 40 mm and a pile density of two types of polyester filaments. It has a double structure consisting of approximately 500 fibers. CP6 was treated with an alkaline solution in the same manner as CP3 in Example 1, and the root portion of the stinging hair was made thinner by 10 mm and the tip portion was made thinner by 10 mm to obtain CP7.

CP7 was stained by the method shown in FIG. That is, black basic dye (Bayer Japan,
Astrazon Black M) 0.05% aqueous solution (PH4.5) was filled up to 10mm of the tip of the stinging hair and dyed at 98℃ for 10 minutes.
Gradually add the next dyeing solution until the liquid level reaches the base fabric in 5 minutes, then release the solution and remove it from the base fabric in 5 minutes.
Return to the 30mm position to complete dyeing and create pile fabric
Obtained CP8. CP8 has fluff that is lightly dyed (brightness at the tip: 6-7, brightness at the base: 8-7).
9) Among the stinging hairs, the tip 10mm of filament _F4 is black (brightness 1-2), and the area from the middle part to the base is a uniform shading. Incidentally, filament _F3 was hardly dyed, and its brightness was 8 to 9. CP8 had two types of prickly hairs with different coloration, giving it a very complex and deep silver fox-like appearance. In the production of CP8, various changes were made by changing the arrangement and mixing state of the two types of stinging filaments _F3 and _F4 . A fur-like product with a high degree of appearance is obtained.

Furthermore, in the same way as CP8, if two or more types of dyes are mixed, for example, a blue-gray basic dye and a black-brown disperse dye, a very complex color effect can be obtained.

Similarly, shading coloring can also be obtained by decoloring the pile that has been dyed in a gradient manner. Decolorization methods include using a solvent for extracting the dye (such as DMF), or applying a solution of a dye decomposing agent through oxidation or reduction to the erected pile using the method shown in Figures 4 and 5 in a gradient manner for contact time. Examples include contacting the object while changing it to .

In the fur-like raised pile product of the present invention, a suitable resin such as a polyurethane elastic material, rubber latex, or acrylic resin may be added to the base fabric as necessary. Similarly, the base fabric can be reinforced with a resin or the like and further lined with a knitted fabric, a woven fabric, a non-woven fabric, or a sheet-like material, such as a thin artificial leather-like material.

[Brief explanation of the drawing]

FIGS. 1 to 3 are enlarged views of the shading-colored fur-like napped product of the present invention, and FIGS. 4 and 5 are explanatory diagrams showing the method for producing the napped product. In the figure, 1 is the base fabric, 2 and 3 are the pile.
(However, 2 corresponds to fluff among the nape, and 3a to 3
e corresponds to stinging hair. ), 4 is the inner cylinder, 5 is the outer cylinder, 6
is, for example, a staining solution, 7 and 9 are liquid levels, 8 is a space, 1
0 is the central axis of rotation, 11 is an inlet for dyeing liquid, etc., 13 is an outlet thereof, and 12 and 14 are pulp, respectively.

Claims (1)

[Scope of Claims] 1. A single yarn denier is 100 denier or less and consists of napped, and at least a part of the napped is colored gradually changing in the length direction, and the color change is approximately equal to that of the base fabric. A fur-like raised product characterized by having uniformly blurred coloring that starts from a point at a certain distance and ends at another point at least 4 mm away from the point and at a substantially constant distance. 2 The distance between the point where the color change starts and the point where it ends is 5~
The raised product according to claim 1, which has a diameter of 60 mm. 3 The difference in brightness V between the starting point and the ending point of the color change is 1 or more, the difference in chroma C is 2 or more, or the difference in hue H is
The napping product according to claim 1 or 2, which has a particle size of 2.5 or more. 4. Any one of claims 1 to 3, in which the piloes consist of a large number of thin and short piloes (hereinafter referred to as "fluff") and a relatively small number of thick and long piloes (hereinafter referred to as "prickly hairs"). The piloerection products listed. 5. The raised product according to claim 4, in which 10% or more of each of the fluff and/or prickly hairs is colored in a shading manner. 6. The raised product according to claim 5, in which 20% or more of each of the fluff and/or prickly hairs is colored in a shading manner.