JPH07157961A - Nonwoven fabric and its production - Google Patents

Abstract

PURPOSE:To obtain a simple process for the production of a nonwoven fabric having soft surface and holding figures and patterns having excellent designability and pale color. CONSTITUTION:This nonwoven fabric is produced by placing a dry nonwoven fabric 1 composed of polyester short fibers on a spun-bond nonwoven fabric 2 composed of continuous polypropylene filaments and having a pattern printed to the surface by flexographic printing, bonding both fabrics by needle-punching to pull-out a part of the fiber of the dry nonwoven fabric 1 through the spun- bond nonwoven fabric 2 to the reverse side and subjecting the product to shearing process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-woven fabric having a velor-like soft surface with a light pattern or pattern, and a method for producing the same.

[0002]

2. Description of the Related Art Nonwoven fabrics with a soft surface are made by passing ultrafine fibers through a carding line, or by immersing the nonwoven fabric in a chemical solution for softening, raising, and loosening. However, there is no known non-woven fabric having a soft surface and a light design or pattern.

[0003]

DISCLOSURE OF THE INVENTION The present invention is intended to obtain a non-woven fabric having a soft surface and a visually light design or pattern. Therefore, a soft carded surface is used. It is difficult to attach a design or a pattern to a non-woven fabric, and even if such a non-woven fabric is provided with a design or a pattern, it is not possible to form a design or a pattern having a beautiful design. In addition, when the above-described softening treatment is performed on a non-woven fabric having a design or a pattern attached in advance, the design or the pattern may be peeled or distorted.

An object of the present invention is to provide a non-woven fabric having a light design and a pattern which is excellent in surface flexibility and design, and a simple manufacturing method thereof.

[0005]

Therefore, the nonwoven fabric of the present invention is characterized in that the surface of the nonwoven fabric having a design or pattern preliminarily printed thereon is raised, and needle-punched to raise the surface. Characterize. According to the present invention, the raised surface has flexibility, and the design or pattern is blurred to give a velour-like soft appearance. In addition, because it is raised, even if it is needle punched,
It is difficult for the design or pattern to be distorted or broken.

In addition to printing, the pattern or patterning according to the present invention may be provided with a pattern such as colored fibers. In order to reduce the collapse of the fiber and the collapse of the design and pattern when raising the hair by needle punching, combine two non-woven fabrics, and part of the fibers of one non-woven fabric layer penetrate the other non-woven fabric layer. It is desirable to pull it out. In this case, furthermore, it is desirable that the non-woven fabric layer to which the design or pattern is attached is a high-density one that allows the design or design to be attached in a delicate and delicate manner.
It is desirable that the bulk density is 0.05 to 0.4 g / cm ³ and the fibers are not easily loosened by needle punching, for example, spunbonded nonwoven fabric bonded by heat embossing. This high density nonwoven fabric has a basis weight of 10
1000 g / m ² , preferably 20-200 g / m ² ,
A thickness of 0.1 to 10 mm, preferably 0.2 to 3 mm can be used.

Another non-woven fabric to be composited is a needle.
Use a low-density one that is easy to perform composite processing by punching
It is desirable to use a high-density non-woven fabric layer even for low-density ones.
It is a dry type that consists of short fibers that easily pass through to the other side.
Woven fabric, eg short made of polypropylene or polyester
Dry non-woven fabric obtained by passing fibers, cotton, etc. through the card line
Is more desirable. This low-density nonwoven fabric has a density of 0.
001-0.2g / cm ³, Preferably 0.005 to 0.
1 g / cm³, Basis weight is 10 to 1000 g / m², Preferably
Is 15-150 g / m², The thickness is 0.1-20mm,
Preferably 0.2 to 10 mm can be used
It

The product raised by needle punching can be used as it is, but in order to obtain a denser and more uniform surface, the length of the fibers exposed on the surface by shirring is made uniform. Is desirable.

[0009]

EXAMPLE FIG. 1 shows a laminated state before needle punching, wherein 1 is a dry non-woven fabric, and 2 is a spun-bonded non-woven fabric having a pattern printed on its surface. The dry non-woven fabric 1 is made of polyester short fibers, has a fiber diameter of 3 denier and a fiber length of 6
Use a 4 mm one, and have a basis weight of 30 g / m ² on the card line.
Finished. The bulk density was about 0.04 g / cm ³ .

On the other hand, the spunbonded nonwoven fabric 2 was made of polypropylene continuous long fibers, and had a fiber diameter of 3 denier, a basis weight of 50 g / m ² , and a bulk density of about 0.13 g / cm ³ . The surface pattern was printed by flexographic printing.
The two-layer nonwoven fabric configured as described above was bonded by needle punching, and some of the fibers of the dry nonwoven fabric 1 passed through the spunbonded nonwoven fabric 2 and pulled out to the opposite side. In the figure, 3 indicates a raised portion.

Needle punching was performed from the spunbonded nonwoven fabric side with a punch number of 40 and a line speed of 3 m / min. FIG. 2 shows a state after needle punching. Next, in order to make the lengths of the fibers passing through the spunbonded nonwoven fabric layer uniform, the surface was finished by shirring.

[0012]

The present invention is constructed as described above and has the following effects. According to the nonwoven fabric of claim 1,
The surface becomes soft due to brushing, and the patterns and patterns attached to the surface are blurred due to the brushing and become faint to look, giving a velor-like soft design excellent appearance.

According to the manufacturing method of the second aspect, the above-mentioned nonwoven fabric can be obtained easily and surely. According to the manufacturing method of claim 3, by combining two non-woven fabrics,
By partially pulling out the fibers of one non-woven fabric layer through the other non-woven fabric layer, the unraveling of the fibers of the non-woven fabric layer with the design or pattern is reduced, and the collapse of the design or design is reduced. In addition, the two nonwoven fabrics can be joined and raised at the same time by needle punching.

In the manufacturing method according to claim 4, the non-woven fabric having a pattern or pattern is a relatively high density non-woven fabric, for example, a bulk density of 0.05 to 0.4.
If a non-woven fabric of g / cm ³ is used, it is possible to attach patterns and patterns precisely and delicately. When the non-woven fabric as described in claim 6 is used, the fibers are not loosened by needle punching.

When a relatively low-density nonwoven fabric is used as another nonwoven fabric as in the manufacturing method according to claim 7, compound processing by needle punching can be easily performed. If the dry non-woven fabric is used, even a high-density non-woven fabric is likely to pass through the non-woven fabric and have fibers coming out on the opposite side. If shirring is performed as in the manufacturing method according to the ninth aspect, the length of the raised hair can be made uniform.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state before needle punching.

FIG. 2 is a sectional view showing a state after needle punching.

[Explanation of symbols]

1 ... Dry nonwoven fabric 2 ... Spunbond nonwoven fabric 3 ... Brushed

Claims (9)

[Claims] 1. A non-woven fabric obtained by raising a surface having a design or a pattern. 2. A method for producing a non-woven fabric, which comprises subjecting a surface to a pattern or pattern and then needle punching to raise the surface. 3. The method for producing a non-woven fabric according to claim 2, wherein a non-woven fabric having a design or a pattern and another non-woven fabric are needle-punched. 4. The method for producing a non-woven fabric according to claim 3, wherein the non-woven fabric having a design or pattern is a relatively high-density non-woven fabric. 5. The method for producing a nonwoven fabric according to claim 4, wherein the bulk density is 0.05 to 0.4 g / cm ³ . 6. The method for producing a non-woven fabric according to claim 5, wherein the non-woven fabric having a design or pattern is a non-woven fabric obtained by bonding a spunbonded non-woven fabric by heat embossing. 7. The method for producing a non-woven fabric according to claim 3, wherein the another non-woven fabric is a non-woven fabric having a relatively low density. 8. The method for producing a non-woven fabric according to claim 6, wherein the another non-woven fabric is a dry non-woven fabric composed of short fibers. 9. The method for producing a non-woven fabric according to claim 2, wherein the fibers raised on the surface are uniformly shirred by shirring.