JPH10305506A - Flock for electrostatic flocking and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide flock for flocking, particularly flock for electrostatic flocking in which property and performance of new synthetic fibers are sufficiently provided, and flock products having high quality and feel and products having high additional value, which cannot be provided by conventional ones, can be provided, and provide extra-thin monofilaments which are mixed into coating material, synthetic resin base material, and paper to form satin patterns on the surface thereof. SOLUTION: The flock for flocking comprises extra-thin monofilaments (length is 0.1-2.0 mm) which are divided from conjugated fibers and have fineness of 0.01d-1d, and the surface of the flock is covered substantially with an electrodeposition-treated film. Preferably, the extra-thin monofilaments are composed of silky, peach-, rayon-, or wool-like new synthetic fibers, and also the monofilaments are fibers which are divided from conjugated fibers of the multiple-core (sea island), radiation, hollow radiation, radiation with core, or petal radiation type.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to flocking used for flocking, and more particularly, to flocking used for electrostatic flocking. More specifically, the present invention relates to a floc which is finer than a conventional floc. The present invention relates to a flock for electrostatic flocking, which can produce an unprecedented high-quality, high-feeling electrostatic flocking product such as tone, peach, rayon or wool. Further, the present invention relates to a method for producing the flocking for electrostatic flocking described above. In addition, the present invention also relates to flocking other than electrostatic flocking, that is, the above-mentioned floc used for scatter flocking, vibrating flocking, or spray flocking.

[0002] The floc of the present invention can be generally used for flocking, including electrostatic flocking, and is therefore used for building interior materials (wallpaper, curtains, carpets, mats, etc.), footwear (sandals, thongs, etc.), daily miscellaneous goods. (Decorative covers, decorative cords, jewelry boxes, stationery, accessories, etc.), automotive supplies (dashboards, sun visors, weather strips, floppy yarns for car seats, etc.), cooling and heating equipment (kotatsu, foot warmers, etc.), clothing (jackets) , Coat, hat, gloves, etc.)
In addition, the present invention is suitable for manufacturing various kinds of flocked products in various applications such as electronic devices (such as brush rolls), particularly, electrostatically flocked products.

[0003]

2. Description of the Related Art In general, electrostatic flocking is a technique in which a floc formed by cutting fibers in a short length is caused to fly by electrostatic attraction in an electric field formed by applying a high voltage. It refers to the technique of planting on a substrate to which an adhesive has been applied. Simply cutting the fiber short does not result in a sufficiently large charge of the fiber in a high-voltage electric field, and therefore does not produce a flying force necessary for an electrostatic flocking floc. Further, the cut short fibers are easily aggregated with each other to easily form an entanglement or a lump, and the separation performance is generally poor. Therefore, in order to improve the chargeability and separability of the floc and increase its flying power, a treatment for improving the chargeability of the floc has been conventionally performed on the cut short fibers. This process is generally called an electrodeposition process.

Conventionally, as the electrodeposition treatment, the surface of the cut short fiber is treated with tannin, tartar, or the like, to produce a tannin compound or the like on the fiber surface. Utilizing the method of maintaining good conductivity of the floc surface, and inorganic salts (for example, sodium silicate,
Water glass, sodium chloride, etc.), a surfactant, an organosilicon compound (colloidal silica) or a mixture thereof is adhered to the surface of the cut short fibers, whereby the water of crystallization is used to form the surface of the floc. Methods for maintaining good electrical conductivity are known, and these are used. The former method is mainly used in Europe, while the latter method is commonly used in Japan.

[0005]

In the technique of electrostatic flocking, conventionally, as a flock raw material,
Short fibers having a fineness of 1 d (denier) to 100 d and cut to a length of about 0.2 to about 10 mm have been used. The types of the fibers are wide ranging from general natural fibers, regenerated fibers or synthetic fibers, inorganic fibers such as carbon fibers and ceramic fibers, and high-performance fibers such as potassium titanate fibers. on the other hand,
In the spinning technology, in recent years, a new material called a new synthetic fiber, such as a silky tone different shrinkage mixed fiber yarn, has been developed, and various fiber products, including fabrics, using the yarn material of the new synthetic fiber have been produced. ing. The new synthetic fiber is a much finer fiber than the conventional fiber made by dividing the composite fiber, and various kinds of fibers generally called silky tone, peach tone, rayon tone or wool tone are known. However, as far as the present inventor knows, there is no example in which such a new synthetic fiber is used for the technique of electrostatic flocking. That is, a technique of manufacturing flocks for electrostatic flocking starting from splitting of composite fibers has not yet been generally proposed, and attempts to manufacture such flocks have not yet been actually known. In addition, in the recent electrostatic flocking industry, there is a demand for the development of electrostatic flocking products which have been further developed and have higher added value. In particular, the development of a product having a higher quality and a higher texture, which has not conventionally been possible to obtain a flocked surface, has been demanded as a next technical task to be addressed today.

Therefore, the present inventor has started a study to use so-called new synthetic fiber as a raw material for flocking in the technique of electrostatic flocking. First, the composite fiber (undyed, dyed or colored raw material) About 0.5 mm to 2.0
mm, and the obtained short fibers are electrostatically implanted on the surface of a base material (on which an adhesive is applied) according to a general electrostatic flocking method. By dividing according to a conventional general method, an electrostatic flocking product in which extra fine fibers (new synthetic fibers) were transplanted on the surface was prototyped.
However, in this method, the action of the strong alkali chemicals used for dividing the planted composite fibers causes the adhesive on the base material to be significantly eroded, resulting in insufficient fixing of the planted fibers. Therefore, in the produced electrostatic flocking product, the condition of the flocking surface may be very poor. Also, when dyeing undyed fibers after electrostatic flocking, by the high temperature heat applied in the dyeing process,
Similarly to the above, the adhesive on the base material is significantly eroded, causing problems such as insufficient fixation of the flocking fiber. Thus, the electrostatic flocking product thus produced may have a very poor flocking surface property. Sometimes it happens.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object the need for a static fiber having a high-quality feel and high-handiness, which has not been achieved in the past, in which the properties and performance of the new synthetic fiber are sufficiently exhibited. It is an object of the present invention to provide an electrostatic flocking floc which can be used to make a flocking product. Moreover, the problem of the present invention is that the above-mentioned disadvantages do not occur in the production process of the electrostatic flocking product,
An object of the present invention is to provide an electrostatic flocking floc from which a very high value-added electrostatic flocking product can be obtained. Another object of the present invention is to provide a method for producing an electrostatic flocking floc capable of reliably and efficiently producing the excellent flocking for electrostatic flocking of the present invention. Other objects of the present invention can be easily understood by referring to the description of the present specification, particularly, the description of the claims.

[0008]

Means for Solving the Problems As a result of further intensive studies, the present inventor has divided, for example, a multifilament (sea-island) type composite fiber by, for example, an alkali treatment method or a benzyl alcohol treatment method, and then divided. The ultrafine fiber of fineness 0.01d to 1d is cut to a length of 0.1 mm to 2.0 mm, which is much shorter than the length of a conventional floc.
An ultra-fine short fiber is made, and then the electrodeposition treatment is performed to a fineness of 0.
01d to 1d ultra-short fibers, for example, by immersing the ultra-short fibers in a solution of an inorganic salt, a surfactant or an organosilicon compound, or a mixed solution thereof, so that the surface of the fibers is electro-deposited. The ultra-fine short fibers substantially covered with the membrane were produced, and then the produced ultra-fine short fibers were used as flocks for electrostatic flocking.The properties and performance of the new synthetic fiber were fully utilized to achieve a high quality feel. It has been found for the first time that it is possible to produce an electrostatic flocking product which has a high hand feeling and has a very short fiber foot. Further, the present inventor interchanges the order of cutting and splitting of the conjugate fiber, that is, first sets the conjugate fiber to 0.1.
A method is also used in which the composite fiber is cut to a length of 1 mm to 2.0 mm, and subsequently, the cut composite fiber is divided by, for example, the above-described alkali treatment method to produce ultrafine short fibers having a fineness of 0.01 d to 1 d. I tried. Furthermore, when the ultra-fine short fibers were subjected to an electrodeposition treatment and used as flocks for electrostatic flocking, similar to the above, the properties and performance of the electrostatic flocking product that had never existed in the past, namely, the new synthetic fiber, Fully utilized,
The present inventors have found that an electrostatic flocking product having a high quality and a high texture can be produced, and completed the present invention.

According to the present invention, specifically, the floc is composed of ultrafine short fibers having a fineness of 0.01 d to 1 d divided from the conjugate fiber, and the surface of the ultrafine short fibers is substantially covered with the electrodeposition film. And a flock for electrostatic flocking. Further, a more preferred embodiment of the present invention,
The flock for electrostatic flocking described above, wherein the ultrafine short fibers are a new synthetic fiber of silky tone, peach tone, rayon tone or wool tone. Further more preferred embodiments of the present invention,
The present invention relates to the floc for electrostatic flocking described above, wherein the ultrafine short fibers are fibers divided from multi-core (sea-island) type, radial type, hollow radial type, cored radial type or petal-shaped radial type composite fibers. The flocking for electrostatic flocking of the present invention generally has a resistance of 10 ⁴ Ω / cm to 10 ⁹ Ω depending on the substantial coating of the electrodeposition film.
/ Cm.

Further, the present invention provides a method for producing flocks for electrostatic flocking, wherein the composite fiber is divided, and then the divided ultrafine fibers are cut to a length of 0.1 mm to 2.0 mm. The fiber is cut to a length of 0.1 mm to 2.0 mm, and then the cut conjugate fiber is divided. Thereafter, the obtained ultrafine short fiber having a fineness of 0.01 d to 1 d is subjected to an electrodeposition treatment. The method is characterized. The splitting method of the conjugate fiber according to the present invention includes a so-called alkali treatment method, a benzyl alcohol treatment method, a card method, a needle punch method or a water jet punch method. For the electrodeposition treatment, a method is employed in which the ultrafine short fibers having a fineness of 0.01 d to 1 d are immersed in a solution of an inorganic salt, a surfactant or an organic silicon compound, or a mixed solution thereof.

The flocking for electrostatic flocking of the present invention (consisting of the above-mentioned ultra-fine short fibers) can be used for a method of flocking other than the electrostatic flocking without performing the electrodeposition treatment. Therefore, the present invention provides a method in which the floc has a fineness of 0.01d to 1d and a fiber length of 0.1 mm divided from the composite fiber.
The present invention relates to a flock for scattered flocking, vibrating flocking or (air) spraying flocking, which is made of ultra-fine short fibers having a diameter of from 2.0 to 2.0 mm. Furthermore, the above ultrafine short fibers are mixed or added to a coating (paint, varnish, etc.), a synthetic resin base material (especially a resin film material), a paper, etc., so that the surface of the material has a grain pattern (a matte pattern). Etc.), and various patterns such as a thread pattern or a spot pattern can be formed and appear. Therefore, the present invention is an ultrafine short fiber having a fineness of 0.01 d to 1 d and a fiber length of 0.1 mm to 2.0 mm divided from the conjugate fiber,
It also relates to ultrafine short fibers, which are used for forming patterns.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The flocking for electrostatic flocking of the present invention
It is made of ultrafine short fibers having a fineness of 0.01d to 1d divided from the composite fibers. The type of fiber may be any of natural, regenerated (semi-synthetic) or synthetic fiber. Preferred fibers are aromatic polyamide fibers (Kevlar, Nomex, Conex, etc.) and other polyamide fibers (6). -Nylon, 6,6-nylon, 4,6-
Nylon, etc.), regular polyester fiber, basic dyeable polyester fiber, acrylic fiber, vinylon fiber, regenerated cellulose fiber (rayon), wool fiber, cotton fiber, hemp fiber, and polyolefin such as polyethylene fiber and polypropylene fiber Fibers, further, collagen fibers, ceramic fibers, carbon fibers, potassium titanate fibers, and the like. However, in the present invention, since a composite fiber is used as a raw material, a convenient fiber type is a high-quality, high-feel fiber called a new synthetic fiber, particularly,
New synthetic fiber in silky, peach, rayon or wool. For example, a polyester fiber is a silky new synthetic fiber that expresses the luster, touch, toughness, etc. unique to silk by forming an irregular cross section of the fiber and fine crimping (different shrinkage blending). Also called peach-like new synthetic fiber and new rayon that give the touch of peach and micro powder touch, rayon-like new synthetic fiber that gives a dry and refreshing feeling, and false twist processing and mixed fineness mainly from polyester fiber. It is a new wool-like synthetic fiber that expresses the bulkiness and resilience peculiar to worsted. Examples of new silky synthetic fibers include Duo II (manufactured by Asahi Kasei Corporation), Review (manufactured by Kanebo Co., Ltd.), Siluc Royal S (manufactured by Toray Industries, Inc.), Ninphas (manufactured by Kuraray Co., Ltd.), and Siluc Sildue ( Toray Co., Ltd.), Mixi (Unitika Ltd.), Mixi-L
(Manufactured by Unitika Ltd.), Audi (manufactured by Mitsubishi Rayon Co., Ltd.) and the like. Examples of new peach-like synthetic fibers include Sorella (manufactured by Teijin Limited), Gina (manufactured by Toyobo Co., Ltd.), Pisame ( Toray Co., Ltd.) and rayon-like new synthetic fibers include, for example, Fontana μ (manufactured by Asahi Kasei Co., Ltd.), Sivens (manufactured by Kuraray Co., Ltd.), Siluc Chatelaine (manufactured by Toray Co., Ltd.), Rainier (Mitsubishi Corporation) Rayon Co., Ltd.). Examples of wool-like new synthetic fibers include Casimina (manufactured by Kanebo Co., Ltd.) and AGENTI μ.
(Manufactured by Teijin Limited).

The ultrafine short fibers may be undyed or dyed, or may be raw material-colored (colored by mixing a pigment or the like at the stage of spinning), so-called native fiber. Good. By dyeing fibers or coloring raw materials
The combination of the inherent hue of the ultrafine fibers, the hue of the electrodeposition film, and the hue of the dye makes it possible to obtain flocs of various colors. As the dye to be used, although it varies depending on the fiber, an acid dye, a metal complex dye such as a chromium complex dye, a disperse dye, a cationic dye, a reactive dye and the like can be mentioned. In particular, for polyester fibers, dyeing with a disperse dye requires reduction cleaning. No reduction cleaning is required for other polyamide fibers, acrylic fibers, and the like.

In the present invention, the fiber of the raw material of the floc has a fineness of 0.01 to 1 d and a fiber length of 0.1 to 1 d.
1 to 2.0 mm and aspect ratio; 1:30 to 1: 1
The above ultrafine short fibers having a property of 00 are more preferable. If the aspect ratio is more than 1: 100, uniform electrostatic flocking may not be performed. As the diameter of the fiber is larger, the fiber having a larger aspect ratio can be used, but when the diameter of the fiber is smaller, it is necessary to select and use the fiber having a smaller aspect ratio. . Generally, the fiber length is 0.3
It is said that a fiber having twice the length (mm) is most suitable as a raw material fiber for electrostatic flocking. Further, the fineness of the ultrafine short fibers can be appropriately changed depending on the use of the electrostatic flocking, but generally, a finer fiber having a smaller fineness is more preferable. Preferably, the fineness is 0.01d to 0.1d.
3d, particularly preferably ultrafine short fibers having a fineness of 0.01d to 0.1d.

[0015] The ultrafine short fibers include various composite fibers, for example,
In addition to composite fibers having a deformed cross section mainly having a triangular cross section, two-layer (parallel type, core-sheath type) composite fibers, multi-core (sea-island) type, radial type, hollow radial type, radial type with core, It is composed of fibers split from composite fibers such as petal-shaped, mosaic, and nebula. As for the type and form of the conjugate fiber, an appropriate one should be selected according to the use of the flocking for electrostatic flocking, that is, the use of the electrostatic flocking. Examples of the composite fiber having an irregular cross section include Solosoye (manufactured by Asahi Kasei Kogyo Co., Ltd.), Toreview (manufactured by Kanebo Co., Ltd.), and Defall (manufactured by Kuraray Co., Ltd.). Further, examples of the multi-core (sea-island) type composite fiber include Siluc Royal S (manufactured by Toray Industries, Inc.), and examples of the radial type composite fiber include Verima (manufactured by Kanebo Co., Ltd.). Examples of hollow radiation type composite fibers include, for example, Asti (manufactured by Teijin Limited), and examples of cored radiation type composite fibers include, for example, Nasca (manufactured by Kanebo Co., Ltd.), and Examples of the petal-shaped radiation (orange) type composite fiber include Siluc Lefonne (manufactured by Toray Industries, Inc.).
Another type of conjugate fiber is polyethylene terephthalate / polyethylene terephthalate (PET / P
ET), polyethylene terephthalate / polyethylene (PET / PE), polyethylene terephthalate / polypropylene (PET / PP), and other composite fibers having a multilayer structure. In the present invention, more preferred ultrafine short fibers are fibers divided from composite fibers such as multifilament (sea-island) type, radial type, hollow radiation type, cored radiation type or petal-shaped radiation (orange) type. is there. Particularly preferred are ultrafine short fibers divided from multifilament (sea-island) type conjugate fibers.

The method of dividing the conjugate fiber is basically arbitrary. For example, in a conjugate fiber of sea-island type or the like, a part of the polyester component is dissolved using an alkali such as sodium hydroxide solution, and An alkali treatment method in which the polyester component and the polyamide component are peeled off at the interface and splits the conjugate fiber, and in a conjugate fiber such as a sea-island type, a part of the polyester component is shrunk by contact with a benzyl alcohol solution. By the benzyl alcohol treatment method where the polyester component and the polyamide component are peeled off at the interface and the conjugate fiber is split, in the conjugate fiber such as the orange type, by the movement of the card,
A card method in which the polyester component and the polyamide component are mechanically peeled off at the interface to split the conjugate fiber,
In a conjugate fiber such as an orange type, a needle punch operation separates a polyester component and a polyamide component at an interface thereof by a needle punch operation to divide the conjugate fiber, and a high pressure water flow in a conjugate fiber such as an orange type. A water jet punch method or the like in which the polyester component and the polyamide component are separated at the interface between them and the conjugate fiber is divided by the action of the above can be adopted. In the present invention, particularly in the production of flocks for electrostatic flocking, a fineness of 0.1
The above-mentioned alkali treatment method and benzyl alcohol treatment method are more preferable in that ultrafine short fibers of d or less can be easily obtained.

In the flocking for electrostatic flocking according to the present invention, the surface of the ultrafine short fiber is substantially covered with the electrodeposition film.
The electrodeposition film is formed, for example, by coating or impregnating with an inorganic salt, a surfactant or an organic silicon compound. As the above-mentioned inorganic salts, surfactants or organic silicon compounds, those capable of imparting the required conductivity to the surface of the ultrafine short fibers by forming a coating film are applied. Inorganic salts include sodium chloride (NaCl), barium chloride (BaCl ₂ ), magnesium chloride (MgCl ₂ ), magnesium sulfate (MgSO ₄ ), sodium silicate (Na ₂ SiO ₃ ), sodium carbonate
(Na ₂ CO ₃ ), sodium sulfate (Na ₂ SO ₄ ) and the like are used.
As the surfactant, an anionic surfactant, a nonionic surfactant, an amphoteric surfactant, a cationic surfactant, or the like is used. Further, as the organosilicon compound,
Colloidal silica or the like is used. The electrodeposition film can be formed by immersing ultrafine short fibers having a fineness of 0.01 d to 1 d in a solution of an inorganic salt, a surfactant or an organic silicon compound, or a mixed solution thereof. In addition, the thickness of the electrodeposition film is basically arbitrary as long as required conductivity and appropriate separation properties are exhibited. However, the electrodeposition film has an average of 0.01 μm.
If the thickness is less than m, it is difficult to form an electrodeposited film having a uniform thickness due to the surface roughness of the fiber itself,
In many cases, the conductivity required for obtaining satisfactory flying power cannot be imparted to the floc. On the other hand, if the electrodeposition film is excessively thick, the resistance value becomes lower than a required value (that is, the conductivity becomes excessively high), and sparks due to approach and contact between flocks during electrostatic flocking. Is generated, and therefore, in the flocking product, uneven shading may appear clearly in the flocking density on the surface. Therefore, it is more preferable that the thickness of the electrodeposition film is in the range of about 0.1 μm to about 1 μm on average.

In general, the electric leakage resistance value of the fiber surface at the time of electrostatic flocking is in the range of 10 ⁴ to 10 ⁹ Ω / cm, more preferably 10 ⁴ to 10 ⁸ Ω.
/ Cm is said to be suitable as a flocking for electrostatic flocking and to obtain a sufficient flying force. Therefore,
Even in the flocking for electrostatic flocking of the present invention, the conditions of the electrodeposition treatment are set so as to have an electric leakage resistance value within the above range. In addition, various characteristics of the typical flocking flock for electrostatic flocking of the present invention are shown. Single fiber fineness D: about 0.01 to about 1 d Fiber length: 0.1 to 2.0 mm Aspect ratio: about 1:30 to about 1: 100 Surface electric leakage resistance value: 10 ⁴ to 10 ⁹ Ω / cm

The present invention also relates to a method for producing the flocking for electrostatic flocking through the following steps A and B. This method does not cause a problem such as weakening of the fixing of the electrostatically implanted fiber due to the erosion of the adhesive on the base material, and therefore, it is possible to produce an electrostatically implanted product having a very good surface implantation property. This is a very preferable production method because it can be performed. A-1 (division of composite fiber, followed by cutting of fiber) For example, sea-island type composite fiber (form of long continuous filament,
That is, it is in the form of a tow or a continuous filament. )
Is treated with a suitable agent to divide it into ultrafine long fibers having a fineness of 0.01 d to 1 d. As the dividing method, the above-described alkali treatment method or benzyl alcohol treatment method is preferably employed. Next, the divided ultrafine fibers are cut into a predetermined length using a cutter, preferably 0.1 mm.
Cut to a length of mm to 2.0 mm. A-2 (cutting of conjugate fiber followed by splitting of fiber) Alternatively, the procedure reverse to that of A-1 is performed. That is, for example, sea-island composite fibers in the form of long fibers are cut into a predetermined length by using a cutter, preferably 0.1 mm to 2.0 mm.
Cut to mm length. Next, the cut conjugate fiber is split according to the treatment described in A-1 to obtain an ultrafine short fiber having a fineness of 0.01 d to 1 d. B (Electrodeposition treatment) The obtained ultrafine short fibers having a fineness of 0.01 d to 1 d and a length of 0.1 mm to 2.0 mm are subjected to an electrodeposition treatment. The electrodeposition treatment can be performed by, for example, immersing the ultrafine short fibers in a solution of an inorganic salt, a surfactant or an organic silicon compound, or a mixed solution thereof, as described above. The composition of the treatment liquid used in this treatment is as described above. In addition, it is also possible to first perform an electrodeposition treatment of a long fiber (for example, a tow), and then cut the treated long fiber into a predetermined size to be a short fiber, and finish the flocking for electrostatic flocking. However, in the case of performing the electrodeposition process in the state of the tow and then cutting it to form a floc,
It should be noted that electrodeposition is not performed on the end face of the fiber and some loss occurs.

Thus, the floc of the present invention can be used for the same electrostatic flocking process as in the prior art, thereby making it possible to manufacture various electrostatic flocking products. The method of electrostatic flocking is not particularly limited, and an up-type electrostatic flocking method (by placing a floc on a lower electrode and providing a flocking target on an upper electrode, and applying a voltage between the upper and lower electrodes) A flocking method in which flocks fly upward), a down-type electrostatic flocking method (in which a flocked object is provided on the lower electrode and a grid or linear upper electrode is used, and a voltage is applied between the upper and lower electrodes, A flocking method in which the flock is made to fly downward by dropping the floc through the grid of the upper electrode) or a side type electrostatic flocking method (an object to be implanted is connected to the electrode beside the electric field, and the voltage is applied. Bottom, a flocking method in which the flock is dropped from the hopper into an electric field, so that the flock firstly flies downward and from the middle sideways.)
Either may be used. In addition, a fluidized-bed type electrostatic flocking machine (a flocking type using a fluidized tank having a structure in which a perforated plate is stretched in a tank and vibration is applied as a floc supply tank, and includes an up-down type, a side type, and the like) ) May be used to manufacture electrostatic flocking such as automobile interior parts from the floc of the present invention. Therefore, the present invention further uses the flocking for electrostatic flocking described above as a raw material, and according to an up-type electrostatic flocking method, a down-type electrostatic flocking method or a side-type electrostatic flocking method, or using a fluidized-bed type electrostatic flocking machine. The present invention also relates to an electrostatic flocking product formed by electrostatic flocking on a surface of a substrate to be flocking.
After completion of the electrostatic flocking, an appropriate doping treatment, for example, an acid concentration of 0.01 to 1 mol / L, preferably a temperature of 10 to 10 mol / L
By performing the immersion treatment in the solution at 90 ° C., it is possible to impart a dopant to the flocks of the flocked product to further increase the conductivity.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments.

Example 1 First, a sea-island type composite fiber (a polyester fiber having a fineness of about 5d is scattered with 6,6-nylon fibers having a fineness of 0.05d of irregular cross section. The nylon fiber is a milling type acid dye). A Kayaanol milling grain 5GW (stained with Nippon Kayaku Co., Ltd.) is prepared. It is in the form of a tow. Next, the sea-island type conjugate fiber is treated with a strong alkali sodium hydroxide solution to be divided into continuous ultrafine fibers having a fineness of 0.05 d.
Take out the 6,6-nylon fiber. Subsequently, the continuous ultrafine fibers are cut to a length of 0.5 mm using a cutter. Thereafter, the obtained ultrafine short fibers (fineness: 0.5
d, fiber length: 0.5 mm) is immersed in a solution of sodium silicate, nonionic surfactant or colloidal silica, subjected to electrodeposition treatment, and then the treated fiber is dried. The surface electric leakage resistance value of the obtained floc is
The measured value was 3 × 10 ⁵ Ω / cm. Also,
When an up-type electrostatic flocking (applied voltage: 30 kV, gap between electrodes: 10 cm) was performed using this floc, the flying power of the floc was sufficiently high, and an adhesive-coated 2/1 weft-woven fabric (polyester / polyester) was used. Cotton = 65/35, thickness 0.15
mm) was also uniform and good. And
The produced electrostatic flocking product had a silky tone new synthetic fiber surface and had an unprecedented high quality and high texture.

Example 2 First, sea-island type composite fibers in the form of a tow (polyester fibers with a fineness of about 5d) are scattered with 6,6-nylon fibers of a fineness (triangular) cross section of 0.05d in fineness of 0.05d. Prepare). Then, using a cutter, the sea-island composite fiber is cut into a length of 0.5 mm. Next, the cut conjugate fiber is treated with a strong alkali sodium hydroxide solution, and divided into ultrafine short fibers having a fineness of 0.1 μm.
05d, take out a 6,6-nylon fiber having a fiber length of 0.5 mm. Thereafter, the ultrafine fibers are dyed with 200% of metal complex salt dye Irgaran Black RBL (manufactured by Ciba Specialty Chemicals Co., Ltd.) at, for example, 95 ° C. for 60 minutes, and then sufficiently washed with water.
Thereafter, the dyed ultrafine fibers (fineness: 0.5d,
The fiber length: 0.5 mm) is immersed in a solution of sodium silicate, nonionic surfactant or colloidal silica, and subjected to an electrodeposition treatment on the surface of the fiber. Then, ultra-fine short fibers (6,6-
Nylon) was thoroughly washed with water, and then dried until the water content reached 6.0%. The surface electric leakage resistance of the obtained floc was measured and found to be 5 × 10 ⁵ Ω / cm. In addition, when a down-type electrostatic flocking (applied voltage: 60 kV) was performed using this floc, the flying power of the floc was sufficiently high, and the flocking on the 2/1 weft-woven fabric coated with the adhesive was uniform. It was good. Then, the produced electrostatic flocking product had a silky tone new synthetic fiber surface, and had an unprecedented high quality and high texture.

Example 3 First, a sea-island type composite fiber in the form of a tow (a polyester fiber having a fineness of 0.2 d containing ceramic fine particles dispersed in a PET fiber having a fineness of approximately 3 d) is prepared. Then, the sea-island type composite fiber is cut into a length of 0.3 mm using a cutter. Next, the cut conjugate fiber is treated with a benzyl alcohol solution, divided into fine fibers having a fineness of 0.2 d and a fiber length of 0.3 mm as ultrafine fibers.
Take out the polyester fiber (containing ceramic fine particles). Thereafter, this ultrafine short fiber was treated with Disperse Dye ND Auto Black No. 1 (sold by Nagase Sangyo Co., Ltd.), for example, at 130 ° C. for 60 minutes, and then sufficiently washed with water. Thereafter, the dyed ultrafine short fibers (fineness: 0.2 d, fiber length: 0.3 mm) are immersed in a solution of sodium silicate, nonionic surfactant or colloidal silica, and subjected to an electrodeposition treatment on the surface of the fibers. Next, the treated ultrafine short fibers are dried. The surface electric leakage resistance value of the obtained floc was measured to be 5 × 10 ⁶ Ω / cm.
Met. In addition, when a down-type electrostatic flocking (applied voltage: 30 kV, gap between electrodes: 10 cm) was performed using this floc, the flying power of the floc was sufficiently high, and the adhesive was applied to a 2/1 weft-woven fabric. Was also uniform and good. The produced electrostatic flocking product had a peach-like new synthetic fiber surface, and had an unprecedented high quality and high texture.

[0025]

As can be seen from the above description, according to the present invention, that is, by using the flocking for electrostatic flocking of the present invention, the properties and performance of the new synthetic fiber are fully exhibited, and a high level of unprecedented synthetic fiber is obtained. The effect that an electrostatic flocking product having a texture and a high feeling can be produced can be obtained. In addition, according to the production method of the present invention, in the production process of the electrostatic flocking product, there is no problem such as weakening of the fixing of the flocculated fiber due to the erosion of the adhesive, and therefore, the properties of the flocking surface are reduced. It is possible to obtain a very good and very high value-added electrostatic flocking product. Also, according to the present invention, the properties and performances of the new synthetic fiber are fully exhibited, and a flocking type, a vibrating type, or (air), which can produce a flocked product having a high quality and a high feel, which has not existed in the past. A spray-type flocking floc is provided. Furthermore, according to the present invention, a fiber material having a high quality and high texture, which has not been exhibited in the past, which has fully exhibited the properties and performance of the new synthetic fiber, has a spotted pattern, a thread-like pattern, or a grain pattern (for example, a satin pattern). And ultrafine short fibers that can be used for forming a pattern such as

Claims (11)

[Claims] 1. The floc is made of ultrafine short fibers having a fineness of 0.01d to 1d divided from composite fibers, and the surface of the ultrafine short fibers is substantially covered with an electrodeposition film. Flock for electrostatic flocking. 2. The flocking for electrostatic flocking according to claim 1, wherein the ultrafine short fibers are new synthetic fibers of silky tone, peach tone, rayon tone or wool tone. 3. The ultra-fine short fiber is a fiber divided from a multi-core (sea-island) type, a radial type, a hollow radial type, a cored radial type, or a petal-shaped radial type composite fiber. 2. The flocking for electrostatic flocking according to 1. 4. The flocking for electrostatic flocking according to claim 1, wherein the ultrafine short fibers are undyed, dyed, or colored. 5. The flocking for electrostatic flocking according to claim 1, wherein the electrodeposition treatment film is formed by coating or impregnating an inorganic salt, a surfactant or an organic silicon compound. 6. The surface leakage resistance of the floc is 10 ⁴ Ω.
2. The flocking for electrostatic flocking according to claim 1, wherein the flock is within a range of from 10 / cm to 10 ⁹ Ω / cm. 7. Flocking or vibrating flocking or blowing wherein the flock is composed of ultrafine short fibers having a fineness of 0.01d to 1d and a fiber length of 0.1mm to 2.0mm divided from conjugate fibers. Flock for attaching flocking. 8. Fineness 0.01d divided from composite fiber
Ultrafine short fibers having a fiber length of 1 to 1d and a fiber length of 0.1 mm to 2.0 mm, which are used for forming a pattern such as a satin pattern. 9. Splitting the composite fiber and subsequently cutting the split ultrafine fiber to a length of 0.1 mm to 2.0 mm, or cutting the composite fiber to a length of 0.1 mm to 2.0 mm Subsequently, the cut composite fiber is divided, and thereafter, the obtained ultrafine short fiber having a fineness of 0.01 d to 1 d is subjected to an electrodeposition treatment, thereby producing a floc for electrostatic flocking. 10. The conjugate fiber is divided by an alkali treatment method, a benzyl alcohol treatment method, a card method, a needle punch method, or a water jet punch method.
The method for producing a floc for electrostatic flocking described in 1 above. 11. The electrodeposition treatment is carried out by immersing ultrafine short fibers having a fineness of 0.01d to 1d in a solution of an inorganic salt, a surfactant or an organic silicon compound, or a mixed solution thereof. The method for producing a flocking for electrostatic flocking according to claim 9.