JPS605702B2 - fur-style bristles structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to a raised structure that resembles animal fur.

More specifically, the present invention relates to a raised structure whose appearance and texture are very similar to the natural fur of mink, fox, etc. Conventionally,
Methods for obtaining a raised structure similar to natural fur include pile weaving, pile striping, sliver knitting, and tufting.

Various improvements have been proposed in these methods depending on raw cotton and finishing methods, but according to studies by the present inventors, these methods have essential drawbacks in the following points. 1. Because the raised yarns (a collection of single fibers) are flocked regularly to the plane of the base fabric and have almost the same thickness, the single fibers are easy to bag, and the base fabric is visible and the raised piles are not visible. It tends to become stepped.

2. In the case of cut pile, the length of the pile is generally too long and the tip is not sharpened, so it can be identified as a counterfeit product at first glance.

3. The fibers to be raised need to be slivers or threads, and are usually wound.

When it comes to fur, especially long hair (prickly hair), it is better not to curl it, giving it a nicer appearance and texture. For this reason, a step is taken to remove the crimp using a polisher or the like, but it is difficult to remove the crimp sufficiently. The present inventors have arrived at the present invention as a result of studying these points.

0 An object of the present invention is to provide a novel napped structure.

In other words, the object is to provide a raised structure whose appearance is very similar to the pricked state of natural fur, whose texture is flexible and resilient, and which is free from entanglement of raised hair and has a luxurious feel. . The present invention has the following configuration.

A fur-like raised hair structure covered with raised hair having the following characteristics.

Wind It must be made of tapered synthetic fibers with substantially point-like sharp edges.'B The length must be irregular. The hair must be implanted by penetrating the base fiber structure without intertwining it.■ The arrangement of the flocking points is irregular.The fineness of the legs is 5 to 100 deniers.In the present invention, synthetic fibers include, but are not particularly limited to, polyester fibers such as polyethylene terephthalate and polybutylene terephthalate, nylon 6, 66, etc. Examples include polyamide fibers, acrylic fibers, polyolefin fibers, and semi-synthetic fibers such as acetate.

These synthetic fibers also include those treated with various known additives (eg, copolymer additives, polymer blends, etc.). In the present invention, polyester-based fibers, particularly polybutylene terephthalate-based fibers, are preferred from the viewpoint of physical properties and ease of sharpening. There are no particular limitations on the fibrous structure that serves as the base, and woven or knitted fabrics or nonwoven fabrics can be used.

There are no limitations on the material, structure, etc., but a fibrous structure that is flexible, delicate, and relatively thin is preferable. In many cases, a flexible polymeric elastomer is added to part or all of the base fiber structure in order to provide adhesion to the nap and give it a more leather-like appearance. . Examples of the polymeric elastomer include polyurethane, polyester, polyamide, acrylic, polyolefin, and rubber.

The so-called electric flocking method, natural fall method, etc. are known as methods for obtaining flocked hairs at irregular positions with respect to the substrate. 1964-6964). However, with this foundation structure and method, it is not possible to penetrate the fibers into the substrate and implant them, and because the fibers are point-bonded to the adhesive layer, it is extremely difficult to provide sufficient adhesive strength and a flexible texture.
Further, since long piles are difficult to be flocked with high density, it is difficult to flock fur-like piles with a sufficient density and length distribution, and the structure of the present invention cannot be fulfilled. In the present invention, there are no particular limitations on the thickness, average nap length, nap density, etc. of the synthetic fibers having sharp edges, but preferred ranges include a thickness of 5 to 100 deniers, an average nap length of 5 to 8 denier, Hair density 50-2000
It is 0 pieces/me.

There is also no limitation on the cross-sectional shape of the synthetic fibers, and in addition to round and elliptical cross-sections, multi-connected cross-sections can also be used. Furthermore, fibers that are thick and thin in the length direction can also be used. In the present invention, the term "substantially point-like sharp edge" means that the tip is observed as a point with the naked eye, and preferably refers to a tip with a diameter of 10 degrees or less. The sharpened shape is preferably a shape that gradually becomes thicker from the tip without curls or bends, and the length of the sharpened portion is preferably visually 2 to 15 sides. Having essentially point-like sharp edges gives a smooth and supple touch similar to natural fur, as can be easily seen.

However, what is more interesting is that it gives the appearance of depth. This is because the tip of the erect hairs has little effect in blocking the view. This has a remarkable effect when the length of the piloerection is irregular. In other words, as a result of the slope of the volume ratio occupied by the napped fibers in the thickness direction of the napped structure becoming gentler, the gradient of the effect of blocking the view also becomes very gentle, making it possible to see very deep parts of the napped structure. be. Moreover, the inventors of the present application have confirmed for the first time that this effect is exactly the same as the luxurious feel of natural fur. In the present invention, it is necessary that one or more sharpened fibers are implanted by penetrating the base fiber structure in an irregular arrangement.

In addition, it is preferable that the number of raised hairs per location is 1 to 50 and the number of flocked hairs is 10 or more, since there are fewer steps on the raised surface and cracks in the ground. Also, the meaning that the napped fibers are flocked with penetrating means that some of the napped fibers are inside the base fiber structure, and if one end of the napped fibers is inside the base, In addition to cases in which the fibers penetrate through the back surface, cases in which the central portion of the napped fibers are implanted inside the base body in a V-shape are also included. In the case of such a structure, sufficient adhesion can be easily obtained and a flexible structure can be obtained. Next, in the present invention, it is preferable to have a structure in which the length of the napped hair is irregular and at least the tip portion is substantially unwound.

Here, the meaning of ``irregular length'' means that when viewed from a distance as a fur structure, it appears to have a uniform pilage length, but there is some variation in the length of individual pilasters. Although it is not limited to the state of distribution, if about 50 pilses are sampled at random and the maximum length of the pilses is set to the L side, and the minimum length is set to the Z fence,
It is more preferable that the following formula is satisfied. ○-1≦(L-so)
/L In addition, the nape must be essentially vertical with no curls at least at the tip; if it has curls, it will lose its deep appearance, have a rough texture, and become easily tangled due to friction, resulting in a decrease in quality. I don't like to imitate.

From this point of view, it is preferable that not only the tip but also other parts have substantially no curling stripes, especially in the case of thick fibers of 10 deniers or more. As described above, a raised structure that satisfies all the requirements of the present invention not only has a good appearance and feel, but also has excellent durability. Furthermore, in the present invention, it has been found that when the coefficient of static friction of the fibers is approximately 0.35 or less, it acts synergistically with the sharpened shape to impart a softer slimy texture and reduce tangles. Here, the static friction coefficient is JIS-L
-1074, measured by radar method, 0.
If it is 4 or more, it gives a strong squeaky feeling and is not preferable. Although good structures of the present invention can be obtained even with a so-called single-layer structure, in many cases, a two-layer structure corresponding to the long hairs (stinging hairs) and short hairs (downy hairs) of fur can be obtained.

In this case, at least the furthest part may be the structure of the present invention, and there is no particular limitation on the short hair structure. Next, an example of a manufacturing method for obtaining the structure of the present invention will be described.
Of course, the manufacturing method is not limited.

Several methods have already been proposed for obtaining sharpened fibers, and any method is fine, but in general, chemical methods that utilize dissolution or decomposition are better than physical methods to obtain a tapered shape. can get.

As an example, the patent application filed by the present inventors is
No. 922' method is mentioned. The fibers with sharpened ends are dispersed alone or mixed with other short fibers by an appropriate method on a woven vertical and horizontal structure serving as a substrate to form a layer of the above-mentioned fibers on the substrate. Thereafter, the fibers are implanted into the substrate by needle punching. Normally, the purpose of needle punching is to obtain a nonwoven fabric, and it has a strong effect of entangling the fibers, but it can be effective if a fiber layer with no crimping or low curling stripes is formed with little tangle, and the needle and punching conditions are optimized. Hair can be implanted on the base. After punching, an adhesive is packed and a raised structure can be obtained by a known raising treatment such as clothing. In the present invention, as a method for reducing the coefficient of static friction of fibers to 0.35 or less, for example, in the case of raw cotton, various additives such as titanium oxide, kaolin, and talc, silicon compounds, and fluorine-containing compounds are blended.

Post-processing can be achieved by applying various durable softening and smoothing agents (silicon-based, urethane-based, etc.) or a combination thereof. It is known that there is a relationship between a decrease in the coefficient of static friction and a slimy texture similar to that of animal hair. You can get a touch of tone. Example 1 [1] Manufacture of synthetic fibers with tapered ends (according to the method of JP-A-54-38922) Polybutylene terephthalate fibers with a circular cross-sectional shape and a thickness of 3 cm were bundled to form a synthetic fiber with a diameter of 4 cm. After straining the thickness of the tow,
The sides were covered with paper and cut into fiber length 67 willow.

This was poured into 40% NaOH, treated at 100 pm for 90 minutes, washed, neutralized and dried. The diameter was 6 mm, and a straight fiber raw cotton with a dot-like fiber length of 6 mm was obtained to the naked eye. ■ Manufacture of flocked structure Next, this raw cotton was used to form a fiber layer on a T/C plain weave with a basis weight of 100 mm/m at a rate of 1,000 m/cm, FPI-1 type #36 manufactured by Organ Needle Company. Needle punching was performed using a needle under the following conditions: the needle depth was 1, and the number of punches was 400.

The back side is coated with acrylic 0 binder (Experimental Emulsion E-1 manufactured by Rohm and Haas Japan).
17 states) and was air-dried day and night for primary solidification. Next, brush the front surface with a hand card to a depth that makes contact with the substrate, and apply 110q of packing agent on the back side.
Coagulation was completed by treatment at 0 for 3 minutes. The thus obtained napped fiber structure was treated in a solution containing 1% of the active ingredient of a silicone softener (SM-8702 manufactured by Toray Silicone Company) for 50 q×30 minutes, dehydrated, and then dried with a brush. I smoothed out the coat and dried it. The structure, quality and feel of the raised structure were as follows.

In other words, the average pile length is 53 ribs, the maximum length is 57 ribs, and the shortest length is 27 ribs, and each hole has about 1 to 20 fibers implanted, resulting in a total density of 800 fibers per hole. The fibers had been implanted by penetrating the base, and were so tightly shielded that the bare surface of the T/C fabric, which was the base, was not visible. The appearance is deep, the fox-like tips are sharp and straight, and the texture is repulsive and slimy, which is unique to animal hair.
A fur-like straight hair structure extremely similar to animal hair was obtained.
Further, when several piles were cut out and measured according to JIS-L-1074, the coefficient of static friction was 0.30. Example 2 Polybutylene terephthalate in which the cross-sectional shape of the single fiber is round and the thickness is 2, mixed with 0.3% titanium oxide and 4% dimethylpolysiloxane (SH-200 manufactured by Toray Silicone Co., Ltd.) (Static friction coefficient 0.33) Fiber To
The sides of the w were covered with paper and the fiber length was cut to 47 willows.

Claims (1)

[Scope of Claims] 1. A fur-like raised hair structure covered with raised hair having the following characteristics. (A) The fibers are tapered with substantially point-like sharp ends. (B) The length is irregular. (C) The fibers are implanted by penetrating the base fiber structure without entanglement. (D) The arrangement of the flocking points is irregular (E) The fineness is 5 to 100 deniers 2. The tip of the raised hair is substantially crimped. The fur-like bristle structure according to item 1. 3. The fur-adjusted bristle structure according to claim 1, characterized in that it has short hair portions. 4. The fur-like nap structure according to claim 1, characterized in that the static friction coefficient of the nap forming the surface is 0.35 or less.