JPH10235765A - Frock finished product and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frock finished product of remarkably improved compression recovery properties of piles and the soft and smooth surface touch which is used for clothing, automobile interior products, bags, lace yarns, toys, furniture, footware and other decorative products and the like. SOLUTION: A frock finished product is formed of piles of polyethylene terephthalate fibers, polybutyrene terephthalate fibers or polypropylene terephthalate fibers frock finished on a pile base, and the piles formed by heat treating the polyethylene terephthalate fibers, polybutyrene terephthalate fibers or polypropylene terephthalate fibers are heat treated in the given length or under the tension and then cut into the length of 0.1-10mm and frock finished on the base.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flocked product made of a polyester fiber material and having a large compressive modulus of elasticity, a soft surface touch and a smooth effect, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, natural fibers and regenerated fibers are mainly used as piles for electrostatic flocking, and polyamide fibers are often used for synthetic fibers. In the case of polyamide fibers, the light resistance is insufficient, so that, for example, in automotive interior materials, the sheet portion has been replaced by polyester fiber products, and other parts than the sheet, such as pillars and boxes, For flocking piles such as these, movements to replace polyester fibers have begun to appear.

[0003] However, the conventional electrostatic flocking product made of a polyester fiber pile is poor in quality due to rough and hard touch on the pile surface, and remains inferior in quality when a large external force is applied to the pile surface. Not. As means for improving the surface touch, proposals have been made in which the cross-sectional shape is changed from round to flat or hollow (JP-A-6-905, JP-A-5-86506, etc.). The touch has been significantly improved, but not the trace.

[0004] Further, for example, in the case of a mall yarn in which a pile is electrostatically planted on a yarn, there is a movement to replace the pile with a polyester fiber, but since the planted pile is coarse and hard, it is necessary to perform winding, rewinding, knitting, weaving and the like. In the process,
There was a drawback that the yarn was detached from the guide, the passability in the process was poor, and the pile rubbed in each process was deformed and did not return to its original state. In addition, the knitted or woven fabric obtained using the molding yarn also has a drawback that the touch is coarse and hard and only inferior quality is obtained because the pile surface is uneven.

Further, in a conventional electrostatic flocking product made of polyethylene terephthalate fiber pile, if the surface of the pile is lightly pressed, the pile rebounds and tries to return to the original shape. When pressed with strong force, it has a fatal disadvantage that the bent shape remains as it is, for example, in pillars of car interior materials, when fitting the pillar to the body of the car,
The pile was buckled completely due to the beating with a fair amount of force, and this buckling had a major problem in that the buckling was a product defect. Further, for example, in an electrostatic flocking cloth, the cloth is generally stored or transported in a rolled state with the pile surface inside. At that time, the pile at the portion subjected to the strong external force is bent, and there is a big problem that the buckling becomes a product defect. That is, in the conventional polyester flocking product, there has not been obtained an electrostatic flocking product having a soft surface touch and exhibiting a smooth effect without remaining buckling even when a strong force is applied to the pile surface.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a soft and smooth surface touch without remaining buckling even when a strong force is applied to a pile surface in view of the problems of the prior art. Another object of the present invention is to provide a flocked product whose pile is made of a polyester fiber material and a method for producing the same.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and a flocked product of the present invention has a base made of a polyester fiber material having a thickness of 0.3 to 7 d and a length of 0.3 to 7 d. It is a flocked product characterized in that a pile of 0.1 to 10 mm is planted and the pile surface has a compression modulus of 70 to 100%. Such a flocking product of the present invention further includes the following preferred embodiments.

(A) The pile is a polyethylene terephthalate fiber.

(B) The pile is a polybutylene terephthalate fiber.

(C) The pile is a polypropylene terephthalate fiber.

[0011] The method for producing a flocking product of the present invention is characterized in that the polyester fiber is heat-treated under a constant length or tension and then cut into a length of 0.1 to 10 mm to form a pile as a base material. A method for producing a flocked article characterized by flocking. In the production method of the present invention, as the polyester fiber, polyethylene terephthalate fiber, polybutylene terephthalate fiber or / and polypropylene terephthalate fiber is used. Preferred embodiments.

(D) The heat treatment is performed at a temperature of 100 to 140.
C. and a heat treatment time of 0.01 to 90 minutes.

(E) The heat treatment is performed at a temperature of 100 to 300.
C., a dry heat treatment time of 0.01 to 20 seconds.

(F) The heat treatment is performed at a temperature of 100 to 140.
C., treatment time: 10 to 90 minutes.

(G) The flocking is by electrostatic flocking.

Hereinafter, the present invention will be described in more detail.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, in order to obtain a high compression elastic modulus without so-called hair falling, the pile is restored to its original shape when a strong external force is applied to the pile surface in the pile with the electrostatic flocking. Synthetic fibers made of polyester, preferably polyethylene terephthalate (hereinafter referred to as PET) or polybutylene terephthalate (hereinafter referred to as PBT), or propylene terephthalate (hereinafter referred to as PPT), are fixed length or strained in a multifilament stage. It is important to heat-treat.

The PET fiber used in the present invention is PE
T refers to fibers formed from T. In addition to fibers composed of PET itself (homopolymer), a copolymer obtained by copolymerizing PET with another component of preferably 10 mol% or less and / or preferably 10 wt% or less In a preferred embodiment, a fiber blended with an organic or inorganic substance is included as a preferred embodiment.
OY) are also included.

The PBT fiber is not only a fiber consisting of PBT itself, but also a copolymer obtained by copolymerizing PBT with another component of preferably 10 mol% or less and / or preferably an organic or inorganic substance of 10 wt% or less. Are included as a preferred embodiment. Furthermore, PPT fiber is P
In addition to fibers consisting of PT itself (homopolymer), PPT
In another preferred embodiment, a copolymer obtained by copolymerizing another component of preferably 10 mol% or less and / or a fiber containing preferably 10 wt% or less of an organic or inorganic substance is included.

In the present invention, PET constituting the pile
The cross-sectional shape of the fiber, the PBT fiber, or the PPT fiber is not particularly limited, but a round shape, a flat shape, a multi-leaf shape, a flat multi-leaf shape, a boomerang shape, or the like can be preferably used. Further, the side surface shape of the pile is preferably linear if possible, but a crimped or curled shape can also be used as long as the implanted product is not hindered. The fiber length of the single fibers constituting the pile is
If the length is too short, it is difficult to obtain the characteristics as an electrostatic flocking product, and if the length is too long, there is a problem that the pile cannot be planted with a high basis weight. Therefore, the range of 0.1 mm to 10.0 mm is suitable, and preferably 0 mm. 0.3 mm to 9.0 mm.

Further, the thickness of the single fiber constituting the pile is
If it is too thin, there is a problem that the piles are entangled with each other and it is not possible to implant the hair. Is preferably 0.3 to 10d,
Preferably it is 0.7d to 7d.

The substrate on which the pile according to the invention is implanted is not particularly restricted and includes plastic moldings, metals and fibrous structures. When the base material is a plastic molded product, a molded product made of another copolymer such as polypropylene, polyacrylonitrile, polyester, or polyamide is included. If the base material is metal, iron, brass,
Metals such as aluminum and copper and their alloys are included. Further, when the substrate is a fibrous structure, natural fibers, semi-synthetic fibers, and synthetic fibers can be used. When synthetic fibers are used, polymers such as polyamide, polyester, polyacrylonitrile, and polyurethane can be used. It contains a polymer and can be freely selected depending on the purpose and application. Examples of the fiber structure include a thread, a string, a strip, a nonwoven fabric, a knitted fabric, and a combination thereof.

In the present invention, the adhesive for fixing the pile to the substrate can be freely selected. Specifically, adhesives such as polyacrylic, polyurethane, polyester, polyamide and vinyl acetate adhesives can be used. Can be used.

Further, in the present invention, the compression elastic modulus, which is an index of recovery of hair falling when the pile is restored to the original shape, is referred to as the compression elastic modulus after the pile which is electrostatically planted on the plastic plate is completely bent. The ratio of recovering the shape is indicated by a change in thickness, and can be determined according to JISL 1096 test method. That is, using an 8 mm ² presser foot, an initial load of 5 g is applied to the pile surface of a 1 cm × 1 cm flock to measure the thickness. Next, the thickness is measured with a load of 1 kg, left for 30 seconds, and then left for 10 minutes after removing all the loads. Thereafter, the thickness was measured again after returning to the initial load of 5 g, and the change in thickness was expressed by the following equation.

That is, Pr = 100 × (t ₃ −t ₂ ) / (t ₁ −t ₂ ) (where Pr indicates the compression modulus (%). T ₁ indicates that the initial load was applied first. is the thickness of the case, t ₂ is the thickness when applying a load of 1 kg, t ₃ is the thickness at the time of return to the initial load.) in the present invention, the compression modulus measured in this way Is
70 to 100%, more preferably 75 to 1%.
00%. If it is less than 70%, there is a problem because the pile buckled on the surface of the electrostatic flocking surface remains on the surface without returning to the original shape. The present invention includes a case where the upper limit of the compression modulus is substantially 100%.

Next, a method for producing the flocking product of the present invention will be described. In a conventional method for obtaining an electrostatic flocking product, first, synthetic fibers obtained by ordinary melt spinning are used as they are, and skewered to a thickness of several tens to several million denier to obtain a tow. The obtained tow is cut to a predetermined length with a guillotine cutter or the like. After dyeing the pile obtained by cutting, it is electrodeposited, dried and sieved to select the length. Next, an adhesive is applied to the base material, and the piles selected in a high-voltage electric field are fly-flocked. Next, the adhesive is dried and cured to obtain an electrostatic flocking product.

In the present invention, even if the fiber used in the present invention is applied to the conventional method as it is, an electrostatic flocking product having a soft and smooth effect on the pile surface can be obtained in some cases. However, there is a problem that the pile surface has a low compression elastic modulus and a trace is left forever when a strong external force is applied to the pile surface. The production method of the present invention is to improve the conventional method and to obtain a flocked product having a high compression modulus.

That is, conventionally, a step of cutting a filament or tow into a predetermined length, dyeing and electrodeposition was adopted, whereas the present inventors have conducted various studies,
Heat treatment (dyeing) of filament or tow under fixed length or tension, crystallized polyester, and then cut / electrodeposition treatment, it was found that flocking with high compression recovery rate can be obtained. It is. In the conventional process, the fibers are cut and dyed (heat treated), so that the fibers shrink freely. On the other hand, the present invention is characterized in that the heat treatment is performed under fixed length or tension, that is, under constraint.

The production method suitable for the present invention will be described more specifically. (A) A synthetic fiber having the constitution of the present invention obtained by ordinary melt spinning is subjected to a fixed length or tension heat treatment in a multifilament stage. After that, after skewing to a thickness of tens to millions of denier to obtain a tow, the pile cut to a predetermined length is dyed, electrodeposited, dried and electrostatically flocking. b) Alternatively, after dyeing cheese at the stage of multifilament, after skewing to a thickness of several tens to several million denier to obtain a tow, the pile cut to a predetermined length is dyed, and electrodeposited. A method of treating, drying and electrostatic flocking, or
(c) After tailoring a synthetic fiber having a configuration of the present invention obtained by ordinary melt spinning into a tow having a thickness of several tens to several million deniers, packing the tow in a package and dyeing the tow with a predetermined amount, By adopting a method in which piles cut into lengths are subjected to an electrodeposition treatment, dried and electrostatic flocking, an electrostatic flocking product having a high compression modulus was successfully obtained.

As a means for heat treatment with a fixed length, the fiber may be heat-treated by winding it on a braided stainless steel cylinder whose inner diameter becomes smaller in accordance with the amount of shrinkage of the fiber, or heat-treating it by packing it in a perforated package. Suitable are, for example, cheese sets or cheese dyeing or tow dyeing. The heat treatment under tension means that the speed is set so that the shrinkage is lower than the free shrinkage. Specifically, for example, in the method of dry heat treating the fiber between the feed roller and the delivery roller, a method in which the feed roller speed is equal to the delivery roller speed or a method in which the delivery roller speed is slightly reduced can be employed. .

The temperature and time for the heat treatment at a fixed length are preferably 100 to 140 ° C. in the case of wet heat treatment or dyeing.
01-90 minutes. If the ratio is below the lower limit, a higher compression recovery rate cannot be obtained, and if the ratio is above the upper limit, the pile starts to have a rough and hard feeling, which is not preferable. More preferable temperature and time are 105 to 135 ° C. and 0.05 to 80 minutes.

When the heat treatment is performed under tension, the preferable dry heat treatment temperature and time are from 100 to 300 ° C., from 0.01 to 300 ° C.
20 seconds. If the ratio is below the lower limit, a higher compression recovery rate cannot be obtained, and if the ratio is above the upper limit, the pile starts to have a rough and hard feeling, which is not preferable. More preferable temperature and time are 150 to 250 ° C and 0.05 to 10 seconds. Further, the degree of the tension is not particularly limited, and may be a range in which the fiber has a lower shrinkage ratio than the free shrinkage ratio. In the present invention, a known method is used for the means of electrostatic flocking.

The flocked product of the present invention has a soft and smooth touch on the surface of the pile, and is excellent in compression recovery, so that it can be used for automobile interior goods, bags, mall yarns, toys, furniture,
It can be used for various purposes such as footwear and other decorative items.

Next, the present invention will be described more specifically with reference to examples.

[0035]

【Example】

(Example 1) A polybutylene terephthalate multifilament fiber having a round cross section and a thickness of 3.0 d was obtained by a normal melt spinning method. 500,000 d of the obtained fiber
I made the tow with the same thickness. Next, the tow was packed in a package dyeing machine, package-dyed with a disperse dye at 130 ° C. for 60 minutes in gray, washed by reduction, dried, cut with a guillotine cutter to a length of 0.8 mm to obtain a pile. The obtained pile was immersed in an electrodeposition treatment liquid (sodium silicate, colloidal silica, antistatic agent) whose pH was adjusted to 4 and squeezed by hand so that the water content became 100%.
Dried at 80 ° C. for 60 minutes.

Next, a self-crosslinking acrylic emulsion adhesive is applied and coated on an acrylic resin plate having a thickness of 2 mm as a base material, and the pile is raised by an up method (30,000 V).
, And dried and cured at 80 ° C. for 60 minutes to obtain an electrostatic flocking product. The compression elastic modulus of the obtained electrostatic flocking product is 90.
%, And the surface touch had a soft and smooth feel without leaving any trace even when the pile surface was beaten with a fist. Table 1 shows the results. (Comparative Example 1) A polybutylene terephthalate multifilament fiber having a round cross section and a thickness of 3.0 d was obtained by a normal melt spinning method. 500,000 d of the obtained fiber
I made the tow with the same thickness. The tow was cut with a guillotine cutter to a length of 0.8 mm to obtain a pile. Next, the pile was packed in a package dyeing machine, package-dyed with a disperse dye at 130 ° C. for 60 minutes in gray, washed by reduction, and dried. From the obtained pile, a flocked product was obtained in the same manner as in Example 1. Although the surface touch of the obtained flocking product was soft, the compressive elasticity was 65%, and when the pile surface was beaten with a fist, traces remained forever and the quality was inferior. Table 1 shows the results.

Example 2 Polyethylene terephthalate multifilament fibers having a flat cross section and a thickness of 1.0 d were obtained by a usual melt spinning method. The obtained fiber was wound around a braided stainless steel cylinder having a length of 20 cm and a diameter of 10 cm, dyed gray with a disperse dye at 130 ° C. for 60 minutes, washed with reduction, washed and dried. The obtained fiber is wrapped around a skein to make a tow of 500,000 d, which is set on a guillotine cutter.
Example 1 except that a pile was obtained by cutting to a length of 6 mm.
In the same manner as in the above, an electrostatic flocking product was obtained. The compressive elastic modulus of the obtained electrostatic flocking product was 82%, there was no trace even when the pile surface was beaten with a fist, and the surface touch was soft and smooth. Table 1 shows the results.

Comparative Example 2 Polyethylene terephthalate multifilament fibers having a flat cross section and a thickness of 1.0 d were obtained by a normal melt spinning method. The fibers obtained were drawn to a thickness of 500,000 d to make a tow. The tow was cut with a guillotine cutter to a length of 0.6 mm to obtain a pile. Next, the pile was packed in a package dyeing machine, package-dyed with a disperse dye at 130 ° C. for 60 minutes in gray, washed by reduction, and dried. From the obtained pile, a flocked product was obtained in the same manner as in Example 1. The surface touch of the obtained flocking product was soft, but the compressive modulus was 60%. When the pile surface was beaten with a fist, traces remained forever, and the quality was inferior. Table 1 shows the results. Example 3 A multifilament fiber of a semi-drawn yarn (POY) of polyethylene terephthalate having a circular cross section of 2.0 d and a thickness of 2.0 d was obtained by a usual melt spinning method. The obtained fiber was subjected to dry heat treatment at 200 ° C. for 0.3 second between a delivery roller and a feed roller having a peripheral speed of 10 m / min. This yarn was wound into a skein of 300,000 d, and one portion was cut into a tow shape, which was then cut with a guillotine cutter to a length of 0.6 mm to obtain a pile. The obtained pile was subjected to package dyeing with a disperse dye at 130 ° C. for 60 minutes in gray for 60 minutes, reduction washing, and drying, to thereby obtain an electrostatic flocking product in the same manner as in Example 1. The compressive elastic modulus of the obtained electrostatic flocking product was 85%, there was no trace even when the pile surface was beaten with a fist, and the surface touch was soft and smooth.
Table 1 shows the results.

(Comparative Example 3) Multifilament fibers of a semi-stretched yarn (POY) of polyethylene terephthalate having a round cross section and a thickness of 2.0 d were obtained by a usual melt spinning method. Example 1 was repeated except that the obtained fiber was wound up into a 300,000-d skein without heat treatment, and one portion was cut into a tow shape, cut with a guillotine cutter and cut to a length of 0.6 mm to obtain a pile. An electrostatic flocking product was obtained in the same manner. The surface touch of the obtained electrostatic flocking product was soft, but the compression modulus was 55%. When the pile surface was beaten with a fist, traces remained forever, and the quality was poor. Table 1 shows the results.

(Example 4) A multifilament fiber of polybutylene terephthalate having a cross section of a flat fiber and a thickness of 1.5 d was obtained by a normal melt spinning method, and the cut length was changed to 1.0 mm. Was obtained in the same manner as in Example 2. The compression elastic modulus of the obtained electrostatic flocking product is 8
At 8%, the pile surface had no trace of beating with a fist and had a soft, smooth feel to the surface. Table 1 shows the results.

(Comparative Example 4) A multifilament fiber of polybutylene terephthalate having a cross section of a flat cross and a thickness of 1.5 d was obtained by a normal melt spinning method, and the cut length was changed to 1.0 mm. In the same manner as in Comparative Example 2, an electrostatic flocking product was obtained. The compression elastic modulus of the obtained electrostatic flocking product is 6
When the pile surface was hit with a fist, traces remained indefinitely, and the quality was inferior. Table 1 shows the results.

[0042]

[Table 1] The softness, smoothness and overall evaluation are based on sensory evaluation results of commercially available PET flocking product (single yarn denier is 3 d, cross section is round, cut pile length is 0.8 mm), and is evaluated by 5 men and 5 women. The criteria are as follows.

◎: considerably superior to commercial products

: Considerably superior to commercial products

△: almost equivalent to a commercially available product.

X: Inferior to commercial product.

Example 5 Polybutylene terephthalate multifilament fibers having a cross section of a flat cross and a thickness of 2.0 d were obtained by a usual melt spinning method. The fibers obtained were drawn to a thickness of 200,000 d to make a tow. Next, the tow is packed in a package dyeing machine, package dyed with a disperse dye at 130 ° C. for 60 minutes in gray, and after reduction washing,
Dried. Put this tow on a guillotine cutter 0.6m
m was cut to obtain a pile. This pile is PH
Was immersed in an electrodeposition treatment liquid (sodium silicate, colloidal silica, antistatic agent) adjusted to 4 and squeezed by hand so that the water content became 100%, followed by drying at 80 ° C. for 60 minutes.
Next, a self-crosslinking type acrylic emulsion adhesive is applied to a polyamide (nylon 6) fiber of 50d-17 filament as a substrate, and the pile is subjected to a down method (30,000 V).
And the hair was dried and cured at 80 ° C. for 60 minutes to obtain a mottled yarn.

When the obtained knitting yarn was knitted in a tube, the knitting was extremely smooth without any slippage of the guide or skipped stitches, the knitting surface was good, and the surface touch was soft and smooth. Furthermore, even when the surface of the knitted fabric was strongly pressed with a finger, no trace of buckling of the pile was left and the quality was good. Table 2 shows the results.

Comparative Example 5 A polyethylene terephthalate fiber having a cross section of a flat fiber and a thickness of 2.0 d was obtained by a normal melt spinning method. The same procedure as in Example 4 was carried out except that the obtained fiber was wound up into a 200,000 d skein without heat treatment, and one portion was cut into a tow shape, cut with a guillotine cutter and cut to a length of 0.6 mm to obtain a pile. A mall yarn was obtained in the same manner. When the obtained knitting yarn was knitted in a tube, the guide was frequently dislodged and skipped, the pile was buckled in some places, the knitting surface was poor, the surface touch was rough and the quality was poor. Further, when the surface of the knitted fabric was strongly pressed with a finger, buckling marks of the pile remained, and the quality was poor. Table 2 shows the results.

[0050]

[Table 2] Softness, smoothness and overall evaluation are the same as in Table 1.

Example 6 A multifilament fiber of polypropylene terephthalate having a round shape of a single fiber and a thickness of 3.0 d was obtained by a usual melt spinning method. The fibers obtained were drawn to a thickness of 500,000 d to make a tow.
Next, the tow is packed in a package dyeing machine,
The package was dyed gray at 00 ° C. for 60 minutes, washed with reduction, dried, and cut with a guillotine cutter to a length of 0.8 mm to obtain a pile. The obtained pile is immersed in an electrodeposition treatment solution (sodium silicate, colloidal silica, antistatic agent) whose pH has been adjusted to 4 and squeezed by hand so that the water content becomes 100%. Dry for 60 minutes.

Next, a self-crosslinking acrylic emulsion adhesive was applied and coated on an acrylic resin plate having a thickness of 2 mm as a base material, and the pile was raised by an up method (30,000 V).
, And dried and cured at 80 ° C. for 60 minutes to obtain an electrostatic flocking product. The compressive modulus of the obtained electrostatic flocking is 94.
%, And the surface touch had a soft and smooth feel without leaving any trace even when the pile surface was beaten with a fist. Table 3 shows the results. Example 7 The same PPT fiber as in Example 6 was cut to a length of 0.8 mm to obtain a pile. Next, the pile was dyed in a free gray state at 98 ° C for 60 minutes while stirring in a bath.
After reduction washing, it was dried. From the obtained pile, a flocked product was obtained in the same manner as in Example 1. The surface touch of the obtained flocking product is soft and the compressive elasticity is 83%. Although this fiber is more recoverable than PET fiber even in free heat treatment, it is more recoverable than the above-mentioned tow dyeing (heat treatment for restraint). Was inferior. Table 3 shows the results.

[0053]

[Table 3]

[0054]

According to the present invention, the pile recovery from compression is remarkably improved as compared with the conventional electrostatic flocking, and even if the pile surface is hit with a fist, there is no trace and the surface touch is soft and smooth. An electro-transplanted product is obtained.

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Claims (9)

[Claims] A pile made of a polyester fiber material having a thickness of 0.3 to 7 d and a length of 0.1 to 10 mm is planted on a base material, and the pile surface has a compression modulus of 70 to 70.
A flocked product characterized by being 100%. 2. The flocking product according to claim 1, wherein the pile is made of polyethylene terephthalate fiber. 3. The flocking product according to claim 1, wherein said pile is made of polybutylene terephthalate fiber. 4. The flocking product according to claim 1, wherein said pile is made of polypropylene terephthalate fiber. 5. A method in which a polyethylene terephthalate fiber, a polybutylene terephthalate fiber or a polypropylene terephthalate fiber is heat-treated at a fixed length or under tension, and then a pile cut into a length of 0.1 to 10 mm is planted on a base material. A method for producing a flocking product, comprising the steps of: 6. The heat treatment is performed at a temperature of 100 to 140 ° C.
The method for producing a flocked product according to claim 5, wherein the moist heat treatment is performed for 0.01 to 90 minutes. 7. The heat treatment is performed at a temperature of 100 to 300 ° C.
The method according to claim 5, wherein the dry heat treatment is performed for 0.01 to 20 seconds. 8. The heat treatment is performed at a temperature of 100 to 140 ° C.
The method for producing a flocked product according to claim 5, wherein a dyeing step is performed for 10 to 90 minutes. 9. The method according to claim 5, wherein the flocking is performed by electrostatic flocking.