JPH0320483B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention is mainly used for interlining for clothing, and consists of a pair of heated embossments in which an emboss pattern is engraved at the same intersecting angle as the web intersecting angle of the cross web, which is mainly made of thermoplastic synthetic fibers. The present invention relates to a binder-free flexible interlining material obtained by pressure fusion using rolls. In recent years, with the diversification and differentiation of outer fabrics for clothing, various characteristics have become required of the interlining base materials that provide clothing with elasticity, stiffness, bulge, shape retention, etc. Ta. Non-woven fabrics are lightweight, highly resilient, and have excellent shape retention, so they have long been used as interlining base materials, but because the fibers are bonded together with a binder, they are not particularly flexible against shear deformation. It had the disadvantage that it was difficult to match with knitted and woven fabrics. Recently, these drawbacks of non-woven interlining base materials have been improved. A relatively bulky and soft fiber web made of thermoplastic synthetic fibers is locally fused using a heated embossing roll. Binder-free nonwoven interlining substrates are being used. The present invention provides a flexible interlining material with excellent softness, drapeability, and stretchability, which further improves the feel of such a nonwoven fabric base material that does not contain a binder. The present invention first involves stacking carded webs mainly made of thermoplastic synthetic fibers such as polyester, nylon, acrylic, vinylon, and polypropylene on a conveyor using a known swing-type web stacking device or a web stacking device such as a jitter lattice. to create a carded cloth web with a constant fiber intersection angle. The crossweb is then pressure fused by a pair of heated embossing rolls having a pattern of embossments to form a partially fused, binder-free, bulky, soft, flexible interlining material. However, it has been found that by devising and improving this emboss pattern, it is possible to form a nonwoven interlining material that is extremely soft and has excellent drapability. In other words, when comparing a nonwoven fabric formed from a random web in which the fibers are generally arranged irregularly and a crossweb nonwoven fabric obtained by cross-laminating carded webs in which the fibers are arranged in parallel, the latter has more free fibers. It is known that it has high elasticity due to its high elasticity, and has a soft texture and excellent drapability due to low shear stress. Therefore, when forming a nonwoven fabric by providing pressure-fused portions using a heat embossed pattern using such a cross web, the best texture can be obtained by matching the direction of the fiber arrangement of the web with the direction of the substantially rectangular protrusions forming the embossed pattern. It has been found that soft results with excellent drapability can be obtained. It has been found that by using such an embossed pattern, an interlining material with the greatest degree of freedom of fibers, high elasticity, lowest shear stress, and very good texture can be obtained. An embodiment of the present invention will be described in detail below with reference to the drawings. Example: Nylon 662d×51mm70%, polyester 1.5d×
A fiber web with a blending ratio of 51 mm and 30% is cross-laminated using a horizontal cross wrapper, and then passed through a drafting process with a function to adjust the fiber lamination angle.
A cross web with a fiber cross angle of 90° and a basis weight of 35 g/m ² was obtained. Next, as shown in Figure 1, a substantially rectangular protrusion 1
is heated and pressurized with a pair of heated embossing rolls having an emboss pattern 2 intermittently (m) engraved at a predetermined interval (n) at the same fiber cross angle as above to form a binder-free material. A flexible interlining material A was obtained. As shown in FIG. 2, in the obtained flexible interlining material, embossed portions formed by approximately rectangular protrusions form partially fused portions 4 that intersect intermittently at regular intervals in the same direction as the fiber arrangement cross direction of the cross web 3. An interlining material with an arrayed pattern was obtained. The above embossing conditions were as follows. Roll temperature: Upper roll (emboss pattern engraving roll) 220℃ Lower roll (flat roll) 210℃ Roll pressure: 67Kg/cm Roll speed: 7.5m/min The emboss pattern of the above embossing roll is shown in Figures 3 and 4. As shown in the figure, the interval (n) between the approximately rectangular protrusions can be appropriately set to be large or small. As a comparative example, a cross web with a fabric weight of 35 g/m ² formed in exactly the same manner as in the example and a random web with a fabric weight of 35 g/cm formed by a Rando Land Webber machine were each shaped into a rectangular shape as shown in Fig. 5. The interlining base material B and the interlining base material C are pressurized and heated under the same embossing conditions as in the example using a pair of heated embossing rolls having an embossing pattern 6 in which protrusions 5 are arranged in parallel at predetermined intervals. I got it. The shear properties and drape of the interlining base material A of the present invention and the interlining base materials B and C of the comparative examples were measured, and the results shown in the table below were obtained.

[Table] As is clear from the above table, the interlining material of the present invention in which the fiber crossing angle in the cross web matches the crossing angle of the approximately rectangular embossed pattern during embossing is the interlining base material B of the comparative example. , shows superior shearing properties and drape properties compared to C, has a soft and supple texture, follows the outer fabric as a core material for women's and men's wear, and maintains the functions of firmness, stiffness, and swelling. It has excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an example of an embossing pattern of an embossing roll used in the present invention, FIG. 2 is a perspective view of a flexible interlining material showing an example of the present invention,
FIGS. 3 and 4 are plan views of embossed patterns that are other embodiments of the present invention, and FIG. 5 is a plan view of an embossed pattern used as a comparative example. 1... Substantially rectangular protrusion, 2... Embossed pattern, 3
...Cross web, 4. Partially fused portion, 5. Rectangular protrusion, 6. Embossed pattern.

Claims (1)

[Claims] 1. On a cross web formed by cross laminating at a constant web cross angle, heat-fused parts with a substantially rectangular embossed pattern are intermittently crossed at predetermined intervals at a cross web cross angle substantially the same as the web cross angle of the cross web. A flexible interlining material characterized by being formed in an array.