TWM558805U - Self-adhesive and breathable non-woven products - Google Patents

Abstract

A self-adhesive permeable non-woven fabric comprising a base fabric layer and a binder layer, the base fabric layer and the binder layer are initially laminated by needle rolling; the base fabric layer has a plurality of base fabric fibers, and is spaced apart from the base fabric The plurality of base fabric pores between the fibers; the adhesive fiber layer comprises a plurality of bonded fibers, and the adhesive fibers comprise a high melting core inner core and a low melting peripheral sheath coated with a high melting core inner core, and the adhesive fibers and the base fabric fiber layer are interlaced at a low position. The peripheral sheath of the melting point is thermally fused to the base fabric layer to form a plurality of hot melted joints, and the remaining intervals form a plurality of hot soluble pores, and the plurality of hot soluble pores are in communication with the plurality of base fabric pores. According to the product, the finished product has good gas permeability, and the conventional manual sizing is applied to form a continuous film to block air circulation defects between the non-woven fabric and the upper material.

Description

Self-adhesive, breathable, non-woven finished product

The present invention relates to a non-woven finished product which has good ventilation effect and can be widely applied to insoles, uppers, cushions, mattresses, and even inner linings of protective gears in footwear.

Most of the current shoes are made of textile, leather or plastic to provide a combination of a beautiful appearance and an internal reinforcement. In the process of combination, although the adhesives of the mutual adhesive type provide the effect of joining two different materials, the dried glue forms a gas-impermeable film, which becomes a film that blocks air from being breathable, and the shoes are not breathable. Mold mold. Because environmental awareness is on the rise, the exclusion of the shoe factory workers' gluing operations, coupled with the trend of process automation requirements, makes compliance with automated processing a requirement for future processes.

Therefore, some of the uppers are made of a combination of a mesh and a non-woven fabric, and are adhered by means of dispensing. Although some functions of moisture absorption and air permeability are improved, defects such as interlayer peeling and non-adhesive fixation may occur. In addition, since the fabric structure is loose, if it is not completely fixed, after a period of friction, the burrs are worn, and the non-woven fabric inside the glue is formed, and after the upper is formed, there is a rigidity shortage defect. There is not enough support to easily deform the upper, so there is still a lot of room for improvement in the upper.

The main purpose of the present invention is to provide a self-adhesive, breathable non-woven fabric which has good gas permeability and improves the conventional manual adhesive bonding to form a continuous film, which blocks the air circulation defects between the non-woven fabric and the upper material, and the combined structure thereof. Strength and rigidity are better than dispensing.

In order to achieve the foregoing objects and effects, a self-adhesive permeable nonwoven fabric comprising a base fabric layer and a bonded fiber layer is provided, wherein: the base fabric layer and the bonded fiber layer are combined by a preliminary layer of needle rolling; The base fabric layer has a plurality of base fabric fibers and a plurality of base fabric pores spaced between the base fabric fibers; the adhesive fiber layer includes a plurality of bonded fibers, and each of the adhesive fibers includes a high melting core and a high melting point a low melting point peripheral sheath of the inner core, and the adhesive fiber is interlaced with the base fabric fiber layer, and the low melting peripheral sheath is thermally fused to the base fabric fiber layer to form a plurality of hot melt nodes, and the remaining intervals form a plurality The hot soluble pores, wherein the plurality of hot soluble pores are in communication with the pores of the plurality of base fabrics.

1‧‧‧Kebu fiber layer

10‧‧‧Kibbu fiber

11‧‧‧Kibbu Pore

2‧‧‧bonded fiber layer

20‧‧‧bonded fiber

21‧‧‧High melting core

22‧‧‧low melting peripheral sheath

23‧‧‧Hot melt junction

24‧‧‧Hot soluble pores

The first figure is a schematic diagram of the self-adhesive and non-woven fabric of the present invention; the second figure is a schematic diagram of the laminated layer of the base fabric fiber layer and the adhesive fiber; the third figure is a schematic diagram of the radial cross section of the bonded fiber of the present adhesive fiber layer.

Referring to Figures 1 to 3 of the drawings, there are disclosed a base fabric layer 1 and a binder layer 2, wherein the base fabric layer 1 is indicated by a thin line, and the binder layer 2 is indicated by a thick line. The base fabric fiber layer 1 and the adhesive fiber layer 2 are needle-rolled at the beginning Step laminate bonding. It should be noted that during the pin rolling process, the base fabric layer 1 and the bonded fiber layer 2 are superposed on each other, and neither the adhesive fiber layer 2 nor the base fabric fiber layer pinching nor the outer surface of the object is penetrated. That is, the bonded fiber layer 2 does not penetrate the base fabric layer 1 when it is needle-punched in the direction of the base fabric layer 1, and does not penetrate when the base fabric layer 1 is needle-punched toward the bonded fiber layer 2. The adhesive fiber layer 2. The adhesive fiber layer 2 is obtained by composite spinning of a low melting point modified polymer fiber and a high melting point polymer fiber, and then rolling by a needle to make the fiber density uniform. The base fabric layer 1 has a plurality of base fabric fibers 10 and a plurality of base fabric apertures 11 spaced between the base fabric fibers 10.

The adhesive fiber layer 2 includes a plurality of adhesive fibers 20, and each of the adhesive fibers 20 includes a high melting core inner core 21 and a low melting peripheral sheath 22 covering the high melting core inner core 21, as shown in the third figure. And the adhesive fiber 20 is interlaced with the base fabric layer 1, and the low-melting peripheral sheath 22 is thermally fused to the base fabric layer 1 to form a plurality of hot-melting nodes 23, and the remaining intervals form a plurality of hot-dissolved pores 24 And the plurality of hot soluble pores 24 are in communication with the plurality of base fabric pores 11.

It can be understood from the above description that the adhesive fiber layer 2 is thermally fused to the base fabric fiber layer 1 with its low-melting outer peripheral sheath 22, thereby forming a thermally bonded thermal melting point 23, so that the adhesive fiber layer 2 is The cross-stacked portions of the base fabric layer 1 can form hot-melting nodes 23, and a plurality of hot-dissolved pores 24 are formed at intervals of the adhesive fibers 20, so that the plurality of hot-dissolved pores 24 and the plurality of base fabric pores 11 can communicate with each other. Helping the fluid to pass through the plurality of hot-dissolved pores 24 and the plurality of base fabric pores 11 to achieve good fluidity, for the shoes worn on the soles of the feet, the furniture/furniture that rides or lies, or even worn on the human body. The inner lining of the protective gear can be well penetrated Gas comfort has become a very practical product. In addition, the low melting point peripheral sheath 202 of the bonded fiber 20 also thermally dissolves the low melting peripheral sheath 202 of the remaining bonded fibers 20 adjacent to each other to form a plurality of hot melt nodes 23.

The base fabric layer 1 and the bonded fiber layer 2 are needle-punched by a pin mill and are performed at a pin rolling density of 200 to 400 times per square centimeter. The base fabric fiber layer 1 is 120 gram per square meter, and the base fabric fiber layer 1 has a tensile strength of 15 kg or more (CNS 12915), and the base fabric fiber layer 1 has an elongation at break of 45% or more ( CNS 12915).

The low melting point peripheral sheath 22 is PET-g-MA modified by maleic anhydride, and the high melting core inner core 21 is PET, and the melting point temperature of the low melting peripheral sheath 22 is 140 ° C or less, which is within the high melting point. The core 21 has a melting point temperature of more than 250 °C. The low melting peripheral sheath 22 is subjected to a contact temperature of more than 140 ° C and no more than 200 ° C, and a duration of 10 seconds to 20 seconds. Here, the adhesive fiber layer 2 is directly heat-pressed by a roller method as an example.

Claims (5)

A self-adhesive permeable nonwoven fabric comprising a base fabric layer and a bonded fiber layer, wherein: the base fabric layer and the bonded fiber layer are combined by a preliminary layer of needle rolling; the base fabric layer has a plurality of base fabrics a fiber, and a plurality of base fabric pores spaced between the base fabric fibers; the adhesive fiber layer includes a plurality of bonded fibers, and each of the adhesive fibers includes a high melting core inner core and a low melting peripheral sheath covering the high melting core inner core And the adhesive fiber is interlaced with the base fabric fiber layer, and the low melting peripheral sheath is thermally fusion bonded to the base fabric fiber layer to form a plurality of hot melt nodes, and the remaining intervals form a plurality of hot melt pores, and the plurality of heats The dissolved pores are in communication with the pores of the plurality of base fabrics. The self-adhesive permeable nonwoven fabric of claim 1, wherein the low melting point peripheral sheath of the adhesive fiber is also thermally soluble in the low melting peripheral sheath of the remaining adhesive fibers adjacent to each other to form a plurality of hot melt nodes. The self-adhesive permeable nonwoven fabric according to claim 2, wherein the low melting peripheral sheath is PET-g-MA modified by maleic anhydride, and the high melting core is PET, and the low melting peripheral sheath The melting point temperature is less than or equal to 140 ° C, and the high melting core inner core has a melting point temperature of more than 250 ° C. The self-adhesive permeable nonwoven fabric product of claim 3, wherein the low melting peripheral sheath has a heat-dissipating temperature of contact conduction greater than 140 ° C and no more than 200 ° C, and a duration of 10 seconds to 20 seconds. The self-adhesive permeable non-woven fabric product according to claim 4, wherein the base fabric fiber layer and the adhesive fiber layer have a needle rolling density of 200 to 400 times per square centimeter, and the base fabric fiber layer is 120 per square meter. Gram, and the base fabric fiber layer tensile strength is greater than or equal to 15 The basis weight of the base fabric layer is greater than or equal to 45%.