JPS5865035A - Anti-static leather product - 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] End #4 is related to antistatic fur-like products. The fur-like products are made of a base fabric made of non-woven fabric and a relatively long length, and have a unique appearance. What is widely used? However, conventional artificial fur-like products are inferior to rags in sophistication when used on natural fur. The present inventors have disclosed a manufacturing method and a product having a high degree of appearance and texture, etc. in Japanese Patent Application Laid-Open Nos. 56-15186 and 56-575.5.
I have already proposed this in issue 4 etc. The present invention proposes a fur-like product with excellent appearance or feel and excellent antistatic properties.

Fur-like products with naps made of synthetic fibers are easily electrostatically charged, and have the drawbacks of conspicuous adhesion of dust, sparks, and discomfort (unresponsive electric shock). In order to improve this drawback, 1) methods used for ordinary textile products, such as anti-static cutting, were incorporated.
In the method of producing erected hair (-yl) using lIIm,
When the tips of the two bristles are decomposed or thinned (sharpened) by the fusaki method, the antistatic property is often extracted or degraded, resulting in a reduction or loss of antistatic properties.

On the other hand, there is a post-static processing method in which an antistatic resin is attached to the surface of the w&joint in the form of a film, for example, a polyester resin having a polymerizable group such as acrylic or methacrylic acid at one or both ends. It is also effective to polymerize alkylene ether derivatives by attaching them to the surface of fibers, but it is quite difficult to uniformly process KII with high efficiency on products with long naps or high-density naps. The cost is high.

The object of the present invention is to provide a fur-like product that can be easily and efficiently manufactured and has excellent antistatic properties.

The fur-like product of the present invention has 105 to 5% of the total weight of naps consisting of conductive fibers that are on average at least 3 - shorter than the length of the nap group consisting of the longest non-conductive fibers. This is a characteristic feature.

The product of the invention has a vertical trough made of conductive fibers. Conductive fibers have a single fiber electrical resistance (measured by applying about 100 V/ext DC) per length 1 cfR.Q'14
Less than about Ω/lym, preferably less than +0itΩ/1,
Particularly preferred is #i+ (1100 islands or less). Such conductive fibers include fine wires of metals (e.g. chains, copper, aluminum, stainless steel, etc.), metals and conductive metal compounds (e.g. indicium oxide). organic fibers plated with conductive metal compounds (e.g. iodide steel, sulfide steel, indium oxide, etc.) on the surface or inside of the organic fibers
conductive layer formed by chemical means, shaped fibers with a conductive resin film containing conductive particles such as carbon black, conductive/rimer (conductive layer) containing conductive particles such as carbon black, etc. Examples include composites with non-conductive polymers during spinning. Conductive particles other than carbon black include metal particles, metal compound (derivative) particles such as zinc oxide, tin oxide, and copper sulfide, and oxide particles such as titanium oxide particles, tin oxide, etc.
Examples include conductive metal oxides such as indium oxide, and those formed with metal films.

Although the conductive fibers of each type of wood can be used for the purpose of the present invention, fine metal wires are much more difficult to handle than organic fibers, and fibers with an isoelectric coating on the surface may peel off the coating due to friction. Therefore, it is most preferable to use a conductive composite fiber in which an isoelectric component and an IP conductive component are combined during spinning.

Many of the above-mentioned various conductive fibers are colored, and when used as a part of normal napping, the coloring will be noticeable in white or light-colored products and the appearance will be poor. First, fibers containing a large amount of white or light-colored metal oxide particles (e.g., zinc oxide, tin oxide, etc.) are dyed with oxides that are close to white. NitJ! They tend to remain and spoil the appearance. Furthermore, if the conductive fibers and non-conductive fibers have different solubility or degradability, if the tips of the napped fibers are thinned, for example, unprocessed conductive fibers will remain, impairing the appearance and feel. To solve these problems, the length of the conductive d1!1111 can be shortened by an average of 5W or more, preferably about 5 to 50 meters, and most preferably about 10 to 20 meters, to prevent it from being exposed to the surface. It has been found that the antistatic properties are improved and sufficient antistatic properties are maintained. .

FIG. 1 is a schematic diagram of a napped product showing an example of the present invention,
In the figure, 1 is the base fabric, and 2 is the thick and long raised hair (stinging hair).
It has 57 thin and short naps (fluff), and is 4#'
It is a conductive fiber that is present in small amounts in fluff. In the napped product with the 21 structure of stinging hair/1Mf = 10 as shown in Figure 1, the longest non-conductive napped hair is the stinging hair 2, and the conductive hair IIIJI1
The difference in the length of the raised hair 4 consisting of 1 is indicated by A in the figure. If the length of A is 5 parts m or more, especially 5 to 50 pieces, sufficient antistatic properties can be obtained without impairing the appearance, texture, etc.

FIG. 2 is a schematic diagram showing another embodiment of the present invention. In this example, one type of napped product Fi, which changes in length in a wavy manner, is used as the napped product Fi (which can be considered as one layer of four filaments or as fluff), and a conductive fiber that is shorter by length A than the napped product Fi. It consists of only two types of piloerection 4. The length of the two bristles made of conductive fibers may be constant or variable, and the length may be between fluff and prickly bristles. However, it is important that they be at least 5 strands shorter than the average length of the longest non-zero-electrostatic piloerection group, ie, that they are sunken inside without being exposed to the surface.

It is easy to make conductive fibers as many as 4111 Kfi people. In other words, yarn for fluff (filament, staple or spun yarn) K yarn, blended yarn, blended yarn, 9-ply knit, mixed weave, etc. may be used as appropriate.・The higher the mixing ratio of conductive fibers, the better the antistatic property. There is.

If the fur consists of several groups of erect hairs of different lengths,
It is sufficient to mix the conductive fibers into the short strands. The nap consists essentially of non-conductive naps (example in Figure 2), using conductive fibers with latent crimpability or high shrinkage, and by heating, swelling, etc. It can develop crimping or shrinkage and be substantially shorter than non-conductive fibers.

If the difference in length (average) A between the long non-conductive piloere group and the conductive piloere group is too large, the antistatic effect tends to weaken. This difference ^ is preferably 50 @ It or less, particularly 50 N or less. -In particular, the longer the nap of the conductive fiber, the better the antistatic property.
0. degree is suitable.

In order to enhance the antistatic effect, isoelectric fibers are mixed into the KM cloth, and 1C1II conductive particles (such as carbon black and tin oxide particles) such as elastomer (e.g., polyurethane elastic material) are impregnated into the base cloth. Antistatic substances (for example, polyalkylene oxide and its derivatives, surfactants, organic electrolytes, etc.) can also be mixed. In this case, it is preferable that the conductive layer of the conductive fibers is exposed on the surface.10) The present invention can effectively suppress charging caused by friction of fur, etc. Fallen hair can be caused by rubbing the fur with a hairbrush or Western bristles made of animal hair (pig hair, etc.), synthetic IR bristles (vinyl chloride, nylon 12, etc.) (2
0°C, 40'1) SRH) charging voltage within ±5000v, vertically within ±20007, most preferably ±+ooov
Therefore, it is possible to sufficiently prevent problems caused by charging.

Example acrylic fiber staple (1,571 cuts, 45 cuts)
A cut pile fabric I11 was obtained by using the spun yarn (50 count/double yarn) as a no-roll system and using cotton yarn (52 count/double yarn) as the base yarn (for base fabric). The nape (acrylic) density of Wl is about 6000/-, and the cut length is 20 strands. W.I.
240 denier polyethylene terephthalate/
Using the tufting method, a series of 6 filaments 1 to 7 (lament lk water shrinkage rate 8 porridge) was implanted with a hair density of 600 (single thread) / , -, cut to 40 strands, and I-reester embroidery was created. / Obtained acrylic fluff double pile product W2.

Nylon 6 containing 55% carbon black (by weight) is placed in the center, and nylon 6 containing titanium oxide 2 is placed on both sides.
is sandwich-shaped by melt composite spinning (volume composite ratio +/1
0), 3-layer exclusive illumination with 9 circular cross sections obtained by stretching and crimping! j
1 synthetic fiber (see Figure 1 of JP-A-54-50919),
The staple 181 is 5 denier and has a cut length of 58 squares. The electrical resistance per 15 of 81 of conductive thread is 8 x 10 Ω.
, 61.

Sl is a 5-layer conductive composite fiber of 20 denier/monofilament with a hot water shrinkage rate of 8%, obtained by contacting it with a hot plate at 160°C after stretching and taking kS. Let F1 be the one with a resistance of 2.2X+[l Ω/es.

? ! F2 was obtained in the same manner as above, but without heat setting, and had a hot water shrinkage rate of 17 red. Fl is a conductive composite yarn of 25 denier and 15 filaments obtained in the same manner as F, but false-twisted at 180°C and twisted 1k 55007
7m), and was further wound up while in contact with a 180℃ heater (feed rate +495), with an electric resistance of 1.7
%) is 25.

Pile product W2 is a pile product W3 obtained in the same manner as Y, but using a spun yarn in which 2 volumes (1!i amount) of 81 are mixed with acrylic fibers.

Pile product W2 is made in the same manner as shown above, except that polyethylene telescrate filament yarn is combined with one conductive composite filament F1, one tree per five courses (at intervals of five).
The pile product obtained using this method is designated as W4.

/(The pile product W4 is obtained in the same manner as in the above except that IF2 is used instead of Fl. W5 is a pile product obtained by using IF2 instead of Fl.

/ The rolled product W4 is W6, which is obtained in the same manner as y, except that F5 is used instead of Fl.

) The present inventors developed the steel products W2 to W6 in Japanese Unexamined Patent Application Publication No. 1986-
No. 15486, the tips of the polyester bristles were thinned into a tapered shape using the electric power method, and
A white fur-like product obtained by scouring with surfactant # and aqueous solution at 0°C, and after drying, impregnating the base fabric with polyurethane oil from the back side by a coating method is used as Inunu no Hikiya product IFW.
2 to 1F116. For the pile product rw5, the pile length of acrylic fluff (approximately 20 m) and the conductive composite yarn /
The pile length and height are equal to y. Similarly, in the pile product FIF4, the pile length of polyester II (approximately 57 cm) and the pile length of the conductive composite yarn are the same. In addition, in the No(il product rfI5), the pile length of the conductive composite system (approximately s5m
) is about 4cm longer than the length of polyester bristles (about 57vm)
1.It's short. Similarly, in PIF6, the pile length (about 20 threads) of the conductive composite yarn is about 171 shorter than that of -1 thread.

Table 1 shows the charged voltage and appearance when each pile product was rubbed 15 times with a hair brush having nylon 12 bristles in an atmosphere of 20°C and 40% RH.

[Brief explanation of the drawing]

Figures 1 and 2 are schematic diagrams of the fur-like product of the present invention. Applicant Kanebo Co., Ltd. Kanebo Gosen Co., Ltd. Figure 1

Claims (1)

[Claims] (1) Longest non-conductive fibers - on average at least 51 times longer than the length of the napped group! An antistatic fur-like product having 0.059t5 to 5% of the amount of violet hair, which consists of raised hairs consisting of conductive embroidery. (The nape made of 21#I conductive fibers are non-calyx conductive dense J11
On average, 5 to 5 times longer than the length of the piloerection group.
50-Product according to claim 1, which is a short patent claim @m%. (5) 0 of the total weight of raised hair. 1; ~596 comprises conductive fibers! Claim 1F! , turtle products. (4) The eas of Patent 4I, wherein the conductive fiber is a metal fiber and/or a fiber having a conductive layer containing 1ltf highly conductive particles made of metal, metal mixture, carbon black.
Products listed in item 1. (9) The conductive layer containing conductive particles, conductive metal (L compound particles and/or conductive car pump hook particles) and fiber-forming polymer are bonded. The product according to claim 1, which is made of a composite fiber with a non-conductive fiber. The product described in Item 1 of the scope of patent I!1 in which fibers are mixed with fluff. Products listed in item 1 of the scope of claims.