JPS61207662A - Production of fiber material - 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 The present invention relates to a method for producing a fibrous material having cushioning properties.

BACKGROUND OF THE INVENTION It has been well known that fiber materials having cushioning properties are used as carpets or other interior materials for vehicles, houses, etc. Examples of such fiber materials include fibers such as carpets fixed to a base layer, and fiber materials of various types, such as those in which a large number of hairs are implanted in the base layer. ing. However, the conventional fiber material 1 not only has a complicated manufacturing method, but also has the disadvantage that its surface has poor abrasion resistance. For example, the fiber material of the flocking type has a force t produced by applying an adhesive on the base layer and fixing a large number of hairs on the base layer. It's not too late.

The work is very complicated. In addition, the raised fibers of the finished fiber material are fixed to each other, so it is desirable to have high abrasion resistance on the surface of the fiber material. (Similar problems exist with fibrous materials of this type.6) The purpose of the present invention is to eliminate the above-mentioned conventional drawbacks and to provide a method for producing a novel fibrous material with excellent abrasion resistance. .

In the present invention, a coagulant is applied to one side of the fiber body, and the coagulant is absorbed from the surface force 1 of the fiber body on the opposite side to the applied side, or the coagulant is applied from the applied side force 1. We propose a method in which the coagulant is impregnated to the surface of the fiber body opposite to the application side by applying pressure, or by applying both the suction and pressure.

According to the above configuration, a fibrous material can be manufactured by an extremely simple process of applying a coagulant to a fibrous body, and sucking and/or pressurizing the applied coagulant. The manufactured fiber material has fluff on its surface and maintains cushioning properties, but since the fibers are fixed together by the coagulant, high abrasion resistance can be obtained.

Satsuki Kanba Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of an apparatus for carrying out the present invention, in which a fibrous body 1 such as a non-woven fabric or a woven fabric made of polypropylene is placed on a conveying table 2 and conveyed in the direction of arrow A. FIG.

A coating device (which may be a roll coater or the like) comprising a sprayer 3 is arranged above the fiber body 1, and this spray 3 sprays a coagulant 4 in a liquid or semi-liquid state onto the surface of the fiber body 1. Ru.

In this way, the coagulant 4 is applied to the surface of the fiber body 1, but this coagulant is the same coagulant that has been applied to the fiber body for the purpose of preventing radio waves, for example, molten synthetic resin. Alternatively, latex rubber liquid or the like can be used as appropriate.

The coagulant 4 applied to the fibrous body 1 as described above is sucked by the suction device 5 provided on the side of the fibrous body opposite to the application side. The suction device 5 shown in FIG. 1 has a cylindrical rotating body 6 disposed in a recess 13 recessed from the conveying surface of the fibrous body 1.

This rotating body 6 is driven to rotate clockwise in the figure, and has a cylindrical wall formed with a large number of ventilation holes 7 that penetrate in the radial direction. The rotating body 6 rotates while being in airtight contact with the outer circumferential flanges of fixed disks (not shown) attached to both ends thereof, and a hollow shaft 8 is attached in the form of a skewer to the center of both fixed disks. There is. One end of the hollow shaft 8 is closed, but the other end is connected to the suction port side of a vacuum pump (not shown).

An outer cylinder 9 having a spring seat is fixed to the outer periphery of the inner portions of both fixed discs of the hollow shaft 8, and an exhaust pipe 10 is loosely and airtightly fitted between the hollow shaft 8 and the outer cylinder 9, and a suction hood 11 is attached to the tip of the exhaust pipe 10. It is fixed. The suction hood 11 is a box-shaped body with a sector-shaped cross section that opens in correspondence with an appropriate angular range of the rotating body 6, and the opening side end surface of the hood 11 is closed by a compression coil spring 12 wound around the exhaust pipe 10. It is pressed against the inner peripheral surface of the rotating body 6.

A plurality of vanes 14 made of an elastic material such as silicone rubber are fixed to the outer peripheral surface of the rotating body 6.

As explained earlier, the fibrous body l is conveyed in the direction of the arrow,
The coagulant 4 is applied thereon, and at this time, the rotating body 6 rotates clockwise while its blades 14 are in contact with the back surface of the fiber body 1.The blades 14 are made of an elastic body and deform elastically.
The transport of the fibrous body 1 is not hindered, but rather the transport of the fibrous body 1 can be aided while supporting the fibrous body 1 from below.

When the rotating body 6 rotates, any two blades always
In the example shown in FIG. 1, blades 14a and 14b are positioned so as to cover the opening of the suction hood 11 while being in contact with the back surface of the fibrous body 1.

Therefore, a sealed space 15 that covers the opening of the hood 11 is defined by the fibrous body 1 and the two blades 14a and 14b. A coagulant 4 is applied onto this fibrous body portion. At this time, the air in this space 15 flows through the ventilation hole 7. Suction hood 11. The coagulant 4 on the fiber body 1 is sucked into the space 15 through the exhaust pipe 1o and the hollow shaft 8 by a vacuum pump. Therefore, the coagulant 4 in a liquid or semi-liquid state penetrates deeply into the fibers of the fibrous body 1 and forms the back surface of the fibrous body.

That is, the fiber body surface on the opposite side to the side to which the coagulant 4 is applied is impregnated. At this time, an appropriate amount of the coagulant is left on the surface of the fiber body on the side to which the coagulant 4 has been applied or in its vicinity.

Therefore, when the coagulant hardens, the back side 100a is hardened by the coagulant as shown in FIG.
A fluffy fiber material 100 is completed. In this case, the surface side 100b does not lose its properties as a fibrous material due to its fluff and maintains its cushioning properties, but the fibers on the surface side 100b also partially, especially the fiber portions that cross each other, are affected by the coagulant. Because it is fixed,
High wear resistance can be obtained. Therefore, this fiber material 100 can be used as an interior material for vehicles or houses for a long period of time while maintaining high quality. Also, the surface side 100
The direction of the raised fluff in b is not constant, but is oriented at all angles in a random state, so the appearance is excellent and a fiber material with good appearance can be obtained. Since the back side 100a contains a large amount of coagulant 4, it exhibits high strength.

In addition, the fibrous body 1 shown in FIG. 1 and the blade 1 in contact with it
The speeds of the tip portions of 4 may be equal, or one of them may be made faster. When fiber body 1 is made faster,
The tip portion of the blade 14 in contact with this is bent in the opposite direction to that shown in FIG.

By the way, if the coagulant 4 is applied to the fiber body 1 and the coagulant 4 covers the concave portion 13 as shown in FIG. 3, then the suction shown in FIG. It is also possible to omit the hood 11 and configure the entire upper opening of the recess 13 to take in air. If air is taken in after the coagulant 4 covers the recess 13, the fibrous body portion 1a where no coagulant exists at the upper opening of the recess 13 (see FIG. 1)
This is because there is no risk of reducing intake efficiency by sucking air in vain.

Similarly, after the concave portion 13 is covered with the coagulant 4.

As shown in FIG. 4, a breathable member, for example, a net-like body 16 is fixed at the upper opening of the recess 13, and when the fiber body 1 passes over this, air is sucked into the recess 13 by a vacuum pump through a duct 17, and the coagulant is You can also aspirate 4. Alternatively, as shown in FIG. 5, an endless belt 18 made of a breathable material.
It is also possible to wind the belt 18 around a roller, drive this belt 18 in the direction of arrow B, and exert an air suction effect on the fibrous body l passing over it.

It is also possible to pressurize the coagulant by blowing air from above the coagulant superimposed on the fibrous body to promote the impregnating action of the coagulant. Particularly when the coagulant is made of thermoplastic resin, the impregnating effect can be further enhanced by blowing hot air.In this way, the air intake force by the intake device is weakened, and the fiber body is strongly drawn toward the intake device. It is also possible to prevent the inconvenience from growing significantly.

Of course, the fibrous body can be impregnated with the coagulant even if the coagulant is not sucked from below but is simply pressurized with air from above.

To blow air onto the coagulant, in addition to using a blow-off nozzle, a rotating body similar to the rotating body shown in Fig. 1 is placed above the coagulant 4, and air is blown out from the ventilation holes of this rotating body. However, when air is blown from above, it is desirable to provide a cover to cover the area of the fibrous body 1 in order to prevent the air from flowing out to the area outside the fibrous body 1.

According to the present invention, it has become possible to easily produce a fiber material with excellent appearance and excellent abrasion resistance.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of an apparatus for carrying out the method according to the present invention, FIG. 2 is a partial side view of a completed fibrous material, and FIGS. 3 to 5 are sectional views showing other embodiments. It is. 1... Fibrous body 4... Coagulant 100...
fiber material

Claims (1)

[Claims] A coagulant is applied to one side of the fibrous body, and the coagulant is sucked from the side of the fibrous body opposite to the applied side, or the coagulant is pressurized from the applied side, or the suction and pressurization are performed together. A method for producing a fibrous material, characterized by impregnating a coagulant even to the surface of the fibrous body opposite to the application side.