阅读说明：本技术 用于汽车内饰的复合针刺无纺布及其制作工艺 (Composite needle-punched non-woven fabric for automotive interior and manufacturing process thereof ) 是由 韩智勇 于 2020-07-20 设计创作，主要内容包括：本发明公开了一种用于汽车内饰的复合针刺无纺布,包括无纺布本体和复合于该无纺布本体上的PE膜层,所述无纺布本体由质量份数为65-75份的环保型PET阻燃纤维和质量份数为25-35份的环保型PET拒水纤维混合而成。本发明的加工工艺经过下料、混棉、梳理、铺网、针刺和覆膜步骤制成,本发明所述的制备工艺简单,加工效率高,所制得的复合针刺无纺布具有良好的阻燃性、拒水性和粘结性,能够满足汽车行业的特殊要求。(The invention discloses a composite needled non-woven fabric for automotive interior, which comprises a non-woven fabric body and a PE (polyethylene) film layer compounded on the non-woven fabric body, wherein the non-woven fabric body is formed by mixing 65-75 parts by mass of environment-friendly PET (polyethylene terephthalate) flame-retardant fibers and 25-35 parts by mass of environment-friendly PET water-repellent fibers. The processing technology of the invention comprises the steps of blanking, cotton mixing, carding, lapping, needling and film covering, the preparation technology of the invention is simple, the processing efficiency is high, and the prepared composite needled non-woven fabric has good flame retardance, water repellency and cohesiveness, and can meet the special requirements of the automobile industry.)

1. The utility model provides a compound acupuncture non-woven fabrics for automotive interior, includes the non-woven fabrics body and compounds the PE rete on this non-woven fabrics body, its characterized in that: the non-woven fabric body is formed by mixing 65-75 parts by mass of environment-friendly PET flame-retardant fibers and 25-35 parts by mass of environment-friendly PET water-repellent fibers.

2. The composite needle-punched nonwoven fabric for automotive interiors according to claim 1, characterized in that: the non-woven fabric body is formed by mixing 70 parts by mass of environment-friendly PET flame-retardant fibers and 30 parts by mass of environment-friendly PET water-repellent fibers.

3. A process for manufacturing a composite needle-punched non-woven fabric for automotive interiors, according to claim 1 or 2, comprising the steps of:

step 1, blanking: placing the environment-friendly PET flame-retardant fibers and the environment-friendly PET water-repellent fibers which are weighed according to the corresponding parts by weight into a re-feeding tank;

step 2, cotton mixing: fully mixing two fibers through a cotton mixer;

step 3, carding: carding the mixed fibers by a carding machine to form a uniform fiber web;

step 4, lapping: lapping the carded fiber web according to the gram weight requirement of a product;

step 5, needling: the laid fiber web is processed by needling, so that the fluffy fiber web is entangled into a non-woven fabric with certain strength;

step 6, laminating: and (3) hot rolling and laminating the processed non-woven fabric and the low-melting point PE film through a two-roller hot rolling mill to obtain a composite material, namely the composite needled non-woven fabric is obtained.

Technical Field

The invention relates to a composite needle-punched non-woven fabric, in particular to a composite needle-punched non-woven fabric for automotive interior and a manufacturing process thereof.

Background

A nonwoven fabric is a widely used fabric of various kinds such as a spunbond nonwoven fabric, a meltblown nonwoven fabric, a stitch-bonded nonwoven fabric, a needle-punched nonwoven fabric, etc., wherein the needle-punched nonwoven fabric is one of dry nonwoven fabrics. The needle-punched non-woven fabric is formed by reinforcing a fluffy fiber web into a fabric by utilizing the piercing effect of a needle. However, the existing non-woven fabric has poor flame retardance, water repellency and adhesiveness, and is difficult to meet the special requirements of the automobile industry.

Disclosure of Invention

In order to overcome the defects, the invention provides the composite needle-punched non-woven fabric for the automotive interior and the manufacturing process thereof, and the special requirements of the automotive industry on the non-woven fabric are met.

The technical scheme adopted by the invention for solving the technical problem is as follows: the composite needle-punched non-woven fabric for the automotive interior comprises a non-woven fabric body and a PE film layer compounded on the non-woven fabric body, wherein the non-woven fabric body is formed by mixing 65-75 parts by mass of environment-friendly PET flame-retardant fibers and 25-35 parts by mass of environment-friendly PET water-repellent fibers.

As a further improvement of the invention, the non-woven fabric body is formed by mixing 70 parts by mass of environment-friendly PET flame-retardant fibers and 30 parts by mass of environment-friendly PET water-repellent fibers.

The invention also provides a processing technology of the composite needle-punched non-woven fabric for the automotive interior, which comprises the following steps:

step 1, blanking: placing the environment-friendly PET flame-retardant fibers and the environment-friendly PET water-repellent fibers which are weighed according to the corresponding parts by weight into a re-feeding tank;

step 2, cotton mixing: fully mixing two fibers through a cotton mixer;

step 3, carding: carding the mixed fibers by a carding machine to form a uniform fiber web;

Step 4, lapping: lapping the carded fiber web according to the gram weight requirement of a product;

step 5, needling: the laid fiber web is processed by needling, so that the fluffy fiber web is entangled into a non-woven fabric with certain strength;

step 6, laminating: and (3) hot rolling and laminating the processed non-woven fabric and the low-melting point PE film through a two-roller hot rolling mill to obtain a composite material, namely the composite needled non-woven fabric is obtained.

The invention has the beneficial effects that: the preparation process is simple, the processing efficiency is high, and the prepared composite needled non-woven fabric has good flame retardance, water repellency and cohesiveness and can meet the special requirements of the automobile industry.

Drawings

FIG. 1 is a schematic view of the process of the present invention.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

A composite needle-punched non-woven fabric for automotive interior comprises a non-woven fabric body 1 and a PE film layer 2 compounded on the non-woven fabric body, wherein the non-woven fabric body 1 is formed by mixing 65-75 parts by mass of environment-friendly PET flame-retardant fibers and 25-35 parts by mass of environment-friendly PET water-repellent fibers.

Preferably, the non-woven fabric body 1 is formed by mixing 70 parts by mass of environment-friendly PET flame-retardant fibers and 30 parts by mass of environment-friendly PET water-repellent fibers

The processing technology of the composite needle-punched non-woven fabric for the automotive interior comprises the following steps:

step 1, blanking: placing the environment-friendly PET flame-retardant fibers and the environment-friendly PET water-repellent fibers which are weighed according to the corresponding parts by weight into a re-feeding tank;

step 2, cotton mixing: fully mixing two fibers through a cotton mixer;

step 3, carding: carding the mixed fibers by a carding machine to form a uniform fiber web;

step 4, lapping: lapping the carded fiber web according to the gram weight requirement of a product;

step 5, needling: the laid fiber web is processed by needling, so that the fluffy fiber web is entangled into a non-woven fabric with certain strength;

step 6, laminating: and (3) hot rolling and laminating the processed non-woven fabric and the low-melting point PE film through a two-roller hot rolling mill to obtain a composite material, namely the composite needled non-woven fabric is obtained.

The composite needle-punched non-woven fabric body has the advantages of flame retardance, water repellency and cohesiveness, wherein the flame retardance is mainly that the non-woven fabric body contains 70% of environment-friendly PET flame-retardant fibers, and the water repellency is mainly that the non-woven fabric body contains 30% of environment-friendly PET water-repellent fibers. The adhesiveness is mainly characterized in that a layer of low-melting PE film (melting point 110 ℃) with excellent adhesiveness is compounded on the non-woven fabric body. Processing 70% of environment-friendly PET flame-retardant fiber and 30% of environment-friendly PET water-repellent fiber into non-woven fabric by a needle-punched non-woven process, scattering PE/EVA powder on the surface of the non-woven fabric by a powder scattering machine, drying the powder in an oven until the powder is melted, and then cooling and flattening to obtain the composite needle-punched non-woven fabric.

Therefore, the preparation process is simple, the processing efficiency is high, and the prepared composite needled non-woven fabric has good flame retardance, water repellency and cohesiveness and can meet the special requirements of the automobile industry.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms than described herein, and therefore the invention is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.