KR20120131972A - Multi component felt with lightweight - Google Patents

Multi component felt with lightweight Download PDF

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Publication number
KR20120131972A
KR20120131972A KR1020110050503A KR20110050503A KR20120131972A KR 20120131972 A KR20120131972 A KR 20120131972A KR 1020110050503 A KR1020110050503 A KR 1020110050503A KR 20110050503 A KR20110050503 A KR 20110050503A KR 20120131972 A KR20120131972 A KR 20120131972A
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KR
South Korea
Prior art keywords
fiber
length
fibers
glass
nonwoven fabric
Prior art date
Application number
KR1020110050503A
Other languages
Korean (ko)
Inventor
이연세
김경민
신동필
이현석
Original Assignee
주식회사 윈코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 윈코 filed Critical 주식회사 윈코
Priority to KR1020110050503A priority Critical patent/KR20120131972A/en
Publication of KR20120131972A publication Critical patent/KR20120131972A/en

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D04H1/4342—Aromatic polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/063—Load-responsive characteristics high strength
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/12—Vehicles

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

PURPOSE: A complex non-woven fabric felt with excellent lightness is manufactured by a needle punching process using various glass fibers, thermoplastic fibers and special fibers for complementing other functions, and is able to be used as an insulating material, sound-absorbing material and finishing material in the vehicle, ship-building and construction fields. CONSTITUTION: A complex non-woven fabric felt with excellent lightness consists of 35-50 wt% of glass fiber, 42-60 wt% of polypropylene fiber and 3-15 wt% of meta-aramid fiber. The glass fiber has E-Glass composition, and is a filament with the thickness of 7-20μm and the length of 50-100mm. The polypropylene fiber has the melting point of 150-170°C, 3-6 crimps/cm, thickness of 5-10 denier, and length of 50-70 mm. The meta-aramid fiber has thickness of 0.9-5.0dTex, 3-6 crimps/cm and length of 30-80mm.

Description

Multi component felt with lightweight}

The present invention relates to a composite nonwoven fabric having excellent light weight that can be used for insulation, sound absorbing materials, finishing materials, etc. in automobiles, shipbuilding, construction, etc., which are manufactured through a needle punching process made of various glass fibers, thermoplastic fibers, and other special fibers for supplementing functionality. will be.

The light weight composite nonwoven fabric of the present invention is a composite nonwoven fabric which is mainly used for melting a fiber or resin component of a thermoplastic component contained therein by heating and then molding a product of a desired form using a cold mold. For the shape stability of the product, it does not melt even at the forming temperature, and it uses glass fiber, carbon fiber, inorganic fiber, natural fiber, organic fiber, etc. which are excellent in stiffness at room temperature after cooling. Thermoplastic components that show strength include polyolefin fibers such as polyethylene and polypropylene, powders, or low melting point polys that have low melting points of resins by lowering the crystallinity of the final resin by containing aliphatic structures reactive to aliphatic or ortho or meta positions. Esters or polyamide fibers or resins, As a typical composition, glass fiber or natural hemp fiber is used as the main component for rigidity, and some polyester fibers are used alone or as a mixture, and polypropylene is the most common thermoplastic resin for binding. Some low melting polyesters are used in the form of fibers or powders.

In general, when glass fiber is manufactured in the form of non-woven fabric by needle punching process, it can be used as insulation material or sound absorbing and insulating material for building or automobile.This felt product is a porous product with excellent heat insulation and sound absorption and soundproofing, but is composed of glass fiber only. It is not possible to manufacture products in the form independently, but there are limitations to their use in inserting between specific containers or structures to utilize the desired properties.

Therefore, Korean Utility Model Registration No. 20-0191180 proposes a product in which glass fabric and nonwoven fabric are attached to the surface for use as a sound absorbing board for building. In this case, the final product does not have sufficient strength. It is difficult to form a furnace product, which has the disadvantage of providing most flat plate products only.

In addition, Korean Utility Model Registration No. 20-0177714 proposes a product in which glass fiber needle felt is bonded to an iron plate having excellent shape retention. In this case, it is used only for a specific use such as a wall, a ceiling, a roof, etc. It has a limitation.

In order to use such nonwoven products in automobiles, Korean stimulation patent 10-0899613 proposes a composite nonwoven fabric mixed with hemp fibers and polyester fibers, and Korean Patent Application No. 2004-0076947 discloses hemp fibers on both sides of a rigid polyurethane. It proposes a composite nonwoven fabric mixed with low-melting polyester fibers, and Republic of Korea Patent No. 10-0810886 proposes a felt mixed with polypropylene powder or short fibers to waste fibers consisting of hemp, cotton, chemical fibers, hemp The fiber is inexpensive, but it is not a fiber having excellent strength, and when there is a lot of moisture during use, the strength is lowered by moisture absorption and is likely to rot.

SUMMARY OF THE INVENTION The present invention relates to a needle punched composite nonwoven fabric having a main component of glass fiber capable of molding various parts for automobile interior, and has a low strength or peeling phenomenon due to moisture absorption of a conventional composite nonwoven fabric for automobile interior materials. In order to solve the problem of having to use a high weight composite nonwoven fabric to make strength for application to automobile parts, a lightweight composite nonwoven fabric capable of forming a lightweight, high strength and stable moisture interior automotive material To manufacture.

In order to mold automobile interior materials such as ceiling materials and door trims of automobiles, it is necessary to solve problems of hygroscopicity, stability, strength, and weight of existing products, and in the present invention, glass fiber 35 A needle punched composite nonwoven fabric composed of 50 wt%, 42-60 wt% polypropylene fiber, and 3-15 wt% meta-aramid fiber was prepared.

Glass fiber used in the present invention is an E-glass fiber having a diameter of 7 ~ 20μm, was used to cut the long fiber glass fiber 5 ~ 10cm for the carding process for producing a composite nonwoven fabric. The polypropylene fiber is a conventional homo polypropylene component having a melting point of 170 ° C., and the length of the fiber is suitably 50 to 100 mm for the carding process. And meta aramid fibers are not particularly limited, but the length of the fiber is suitable 50 ~ 70mm.

At this time, the glass fiber is good for the long fiber type glass fiber for strength characteristics. In the case of the short fiber, the distribution of the glass fiber diameter occurs, the strength is poor, and it is difficult to control the fiber to the desired length for carding. The problem of productivity decrease may occur. And the E-glass component is the most advantageous, E-glass is advantageous in strength compared to the glass fiber of the other composition, it is possible to exhibit a high strength even with a small glass fiber content can contribute to the product weight.

The polypropylene fiber is a homopolypropylene resin alone or a mixture and copolymerization of a polypropylene copolymer or polyethylene, the melting point of the resin is 150 ~ 170 ℃ suitable, low density polyethylene and linear low density polyethylene to obtain a wide range of molding temperature as possible May be partially copolymerized. Polypropylene fibers spun with resins of this nature are secondly processed to make the crimp at 3-6 pieces / cm, and more preferably 4-5 pieces / cm, where the formation of the web is less If too large, it may not be desirable because the entanglement may occur due to large frictional heat during needling. The thickness of the fiber is preferably 5-10 denier, and most preferably 7-8 denier. This is because an appropriate thickness is necessary in order to maintain proper adhesion during thermoforming. It is preferable to use a fiber length of 50 to 70 mm, too short to limit the formation of the web, too long to obtain a uniform mixing degree.

In addition, the meta-aramid fiber used in the present invention is suitable for the thickness of 0.9 to 5.0 dTex, even if the fiber is too thick, the number of fiber strands is reduced at the same weight ratio, it is difficult to achieve the purpose of mixing high heat-resistant, high-strength fibers, too thin The carding characteristic is different from that of other fibers, and the blending characteristic is lowered. In addition, the length of the meta aramid is 30 ~ 80mm is suitable in consideration of the mixing properties with other fibers, 3 ~ 6 / cm is suitable for the crimp, the preferred level is 4 ~ 5 / cm. At this time, if the fiber length is too short, it is difficult to form a web. If it is too long, it is difficult to obtain a uniform mixing degree. If the number of crimps is too small, the web is limited. It is not desirable.

Needle-punching composite nonwoven fabric composed of 35 to 50% by weight of glass fiber, 42 to 60% by weight of polypropylene fiber and 3 to 15% by weight of meta-aramid fiber is composed of conventional hemp fiber and polypropylene fiber. Compared with nonwoven fabrics, it has superior strength and no deterioration due to moisture. Compared with conventional composite nonwoven fabrics composed of glass fiber and polypropylene fiber, the product is lighter and has similar strength. It is possible to manufacture excellent automotive interior materials with improved prevention, vibration damping and insulation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail. However, in the following description of the present invention, detailed descriptions of well-known technologies or functions will be omitted. do.

Example 1

E-glass long fibers with a fiber thickness of 7 ~ 20㎛ are cut into 50 ~ 100mm in length, 35 ~ 50% by weight of glass fiber, 150 ~ 170 ℃ with melting point, 50 ~ 70mm in length, and 3 ~ 6 pieces of crimp Raw material is used as raw material for meta-aramid fiber with 5 ~ 10 denier, 42 ~ 60% by weight, meta-aramid fiber with 0.9 ~ 5.0 dTex, 30 ~ 80mm in length, 3 ~ 6 pcs / cm After treating 0.5 wt% of the conventional antistatic agent with respect to the raw material fibers, the mixed fibers were formed by a series of opening, carding, and cross-lapping to form a composite nonwoven laminate before needle punching, and the upper portion of the composite nonwoven laminate The composite nonwoven fabric was prepared by covering a polyester long fiber nonwoven fabric having a weight of 50 g / m 2 and then needling. The composite nonwoven fabric thus prepared was cut into specimens having a size of 200 × 200 mm, and the weight thereof was measured.

The composite nonwoven fabric prepared as described above was heated for 1 minute using a 210 ° C. hot pressing press, and the flat plate was further cooled using a 23 ° C. cold press, and various physical properties were measured.

[Example 2, Comparative Examples 1 to 7]


Example Fiber mixing ratio
(weight%) Properties GF PP AR Danjung Flexural strength The tensile strength Sound absorption Heat insulation Example 1 38 57 5 957 17.5 64.2 0.310 0.035 Example 2 37 55 8 1,002 16.7 63.7 0.312 0.034 Comparative Example 1 40 60 0 1,084 15.2 57.3 0.284 0.036 Comparative Example 2 55 40 5 1,124 9.4 47.2 0.297 0.036 Comparative Example 3 25 70 5 1,051 12.6 49.8 0.264 0.040 Comparative Example 4 30 65 5 1,040 13.4 52.7 0.268 0.039 Comparative Example 5 60 35 5 1,123 8.7 37.8 0.304 0.035 Comparative Example 6 42 57 One 1,124 15.4 52.9 0.287 0.037 Comparative Example 7 18 57 25 942 10.3 39.0 0.274 0.041

GF: Glass Fiber

PP: Polypropylene Fiber

AR: metaaramid fiber

Unit weight: The value obtained by cutting the molded specimen into 200 × 200mm and measuring the weight.

Flexural load: The maximum load measured at 20mm / min of test speed by cutting the molded specimen into 50mm width and 150mm length based on the flow perpendicular direction (CD) (Unit: N)

Tensile strength: Tensile strength measured at 50mm / min test speed by cutting the molded specimen into width 50mm and length 150mm based on the flow direction (MD) (unit: kg / ㎠)

Sound Absorption: Sound absorption rate of 2 kHz as a sound absorption result measured using an impedance tube

Insulation: Thermal conductivity measured according to KS L 9016 (Unit: W / mK)

Claims (4)

A composite fiber needle punched nonwoven substrate which can be used for molding various interior materials for automobiles, comprising 35 to 50% by weight of glass fiber, 42 to 60% by weight of polypropylene fiber, and 3 to 15% by weight of meta-aramid fiber. Composite nonwoven fabric with excellent lightweight. The method of claim 1,
The glass fiber has a composition of E-glass, composite nonwoven fabric excellent in light weight, characterized in that the long fiber having a thickness of 7 ~ 20㎛ cut into a length of 50 ~ 100mm. The method of claim 1,
The polypropylene fiber has a melting point of 150 ~ 170 ℃, 3 ~ 6 / cm of the crimp, 5-10 denier thickness, 50 ~ 70 mm in length, excellent composite nonwoven fabric. The method of claim 1,
The meta-aramid fiber has a thickness of 0.9 ~ 5.0dTex, the crimp is 3 ~ 6 / cm, the length is a composite nonwoven fabric excellent in light weight, characterized in that 30 ~ 80mm.
KR1020110050503A 2011-05-27 2011-05-27 Multi component felt with lightweight KR20120131972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110050503A KR20120131972A (en) 2011-05-27 2011-05-27 Multi component felt with lightweight

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KR1020110050503A KR20120131972A (en) 2011-05-27 2011-05-27 Multi component felt with lightweight

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101954178B1 (en) 2017-09-28 2019-03-05 원풍물산주식회사 method of manufacturing a three-layer composite nonwoven fabric by needle punching simultaneously in the upward direction and the downward direction
CN112324825A (en) * 2020-11-02 2021-02-05 摩擦一号制动科技（仙桃）有限公司 High-friction-performance environment-friendly brake pad
CN116289213A (en) * 2023-03-13 2023-06-23 扬州天富龙集团股份有限公司 Production process of anti-electromagnetic radiation polyester fiber for automobile interior decoration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101954178B1 (en) 2017-09-28 2019-03-05 원풍물산주식회사 method of manufacturing a three-layer composite nonwoven fabric by needle punching simultaneously in the upward direction and the downward direction
CN112324825A (en) * 2020-11-02 2021-02-05 摩擦一号制动科技（仙桃）有限公司 High-friction-performance environment-friendly brake pad
CN116289213A (en) * 2023-03-13 2023-06-23 扬州天富龙集团股份有限公司 Production process of anti-electromagnetic radiation polyester fiber for automobile interior decoration

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