CN111038039A - High-performance polyester profiled fiber sound-absorbing cotton for automobile - Google Patents
High-performance polyester profiled fiber sound-absorbing cotton for automobile Download PDFInfo
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- CN111038039A CN111038039A CN201911356031.XA CN201911356031A CN111038039A CN 111038039 A CN111038039 A CN 111038039A CN 201911356031 A CN201911356031 A CN 201911356031A CN 111038039 A CN111038039 A CN 111038039A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- 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
- D04H1/435—Polyesters
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- 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
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- 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
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- 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
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
Abstract
The invention discloses high-performance polyester profiled fiber sound-absorbing cotton for automobiles, and relates to a preparation method, a product and application thereof, wherein the preparation method comprises the following steps: the sound-absorbing cotton is produced by adopting 20-42% of low-melting-point fiber, 30-46% of polyester fiber with flat section form and 12-50% of denim cotton, performing non-woven treatment by using a physical method and performing an air-laid process on the fiber. The obtained product is used for automotive interior and the like. According to the invention, the polyester fiber is screened according to different fineness of the flat section to obtain the optimal fiber form and the optimal fineness, and the non-woven treatment is carried out by using a physical method to obtain the excellent sound absorption function. The invention not only reduces the material cost of the sound-absorbing cotton for the automobile, but also reduces the manufacturing cost of the sound-absorbing cotton, has better sound-absorbing performance than the common wool material, has simple and quick process and no pollution, meets the requirement of low VOC of the automobile, and has convenient recycling of polyester fiber, environmental protection and energy saving.
Description
Technical Field
The invention relates to a non-woven material, in particular to high-performance polyester profiled fiber sound-absorbing cotton for an automobile.
Background
The sound-absorbing cotton is used for automotive interior to reduce noise, and the sound-absorbing cotton material mainly comprises wool and chemical fiber materials, so that the comfort level of drivers and passengers can be improved.
Synthetic fibers are currently the most widely used raw material for acoustical nonwoven materials for vehicles. The synthetic fiber has excellent comprehensive performance, and the sound absorption non-woven material prepared from the synthetic fiber has the advantages of light weight, good sound absorption effect, no pollution, safety, comfort, long service life, stable performance and the like, and meets the requirements of environmental protection, light weight and conservation in the present society.
The sound-absorbing cotton produced by the fiber air-laid process is used on automobiles in a large amount to reduce the noise in the automobiles. The main components of the air-laid sound-absorbing cotton are chemical fibers, plant fibers and animal fibers, and then the low-melting-point fibers are added in a certain proportion to form the sound-absorbing cotton.
Application No.: 201810746644.3A method for installing sound-absorbing cotton on the protecting plate of car door is disclosed, which comprises light sound-absorbing cotton, metal plate in car door, and protecting plate. The pure light sound-absorbing cotton is arranged between the inner metal plate of the door and the door guard plate, and the pure light sound-absorbing cotton is welded with the door guard plate by an ultrasonic welding method. The invention adopts a welding method to firmly weld the pure light sound-absorbing cotton and the car door protective plate together, and overcomes the major defects of material waste, easy environmental pollution, easy falling off in use and maintenance need of the traditional method of connecting the sound-absorbing cotton and the car door protective plate by using double faced adhesive tape. Therefore, the present invention is a very excellent and unique method for installing the sound-absorbing cotton.
Application No.: the invention discloses heat-storage temperature-regulation sound-absorption cotton, which is formed by crossly lapping sound-absorption cotton layers consisting of heat-storage temperature-regulation micro-nano PP fibers, bamboo charcoal fibers and PET hollow fibers. The sound-absorbing cotton layer is prepared by melt-blown-dry-method fiber web online compounding. The two sides of the sound-absorbing cotton layer can be covered with surface layers which are PP heat-storage temperature-regulating non-woven fabric layers or aluminum foils, and the PP heat-storage temperature-regulating non-woven fabric layers are made of PP non-woven fabric materials. The surface layer and the sound-absorbing cotton layer are compounded, embossed, ultrasonically sealed, cut into various required sizes and specifications to obtain the heat-storage heat-preservation sound-absorbing cotton. The invention realizes heat storage and temperature regulation by means of the special performance of the phase-change microcapsule and combining the bamboo charcoal fiber of the sound-absorbing cotton layer and the hollow structure of PET, and the prepared sound-absorbing cotton has excellent heat storage and temperature regulation performance. The invention has the characteristics of excellent sound absorption and sound insulation, peculiar smell and odor removal, flame retardance, mildew resistance and the like, has a bidirectional temperature regulation function in a certain range, and can be used as a heat storage and temperature regulation material.
Disclosure of Invention
The invention aims to provide a preparation method of high-performance polyester profiled fiber sound-absorbing cotton for automobiles.
Yet another object of the present invention is to: provides the product obtained by the preparation method.
Yet another object of the present invention is to: provides the use of said product.
The purpose of the invention is realized by the following technical scheme: a method for preparing high-performance polyester profiled fiber sound-absorbing cotton for automobiles adopts 20-42% of low-melting-point fiber, 30-46% of polyester fiber with a flat section form and 12-50% of denim cotton, uses a physical method to carry out non-woven treatment, and produces the sound-absorbing cotton through a fiber air-laid process.
On the basis of the scheme, the fineness of the polyester fiber with the flat section shape is 0.5D-4.4D.
On the basis of the scheme, the polyester fiber with the flat section is formed by processing special-shaped spinneret holes on a spinneret plate and carrying out melt spinning.
On the basis of the scheme, the adopted non-woven process is a carding and needling forming process flow: the production process includes the steps of mixing, vibrating cotton box, carding with carding machine, cross lapping machine to form web, needling with needle machine, cutting with plate cutter, forming web with fiber, needling, and pressing to form.
The invention also provides a high-performance polyester profiled fiber sound-absorbing cotton product for automobiles, which is obtained according to the preparation method.
The product is preferably a plate with the surface density of 600-1000gsm and the thickness of 15-20 mm.
The automobile structural member formed by using the fiber web formed by the method of the invention and needling through composite film pressing has excellent stiffness, tensile strength and noise reduction performance. In the raw materials of the air-laid net, a certain proportion of flat fibers are added, so that the sound absorption performance is greatly improved, the gram weight of the material is reduced, and the light weight effect is achieved.
The invention also provides application of the high-performance polyester profiled fiber sound-absorbing cotton product for the automobile in positions of an engine compartment, the inner side of an instrument panel, the inner side of a door panel, an A, B, C column of a vehicle, a trunk and the like.
The invention has the advantages that: the polyester fiber is screened according to different fineness of the flat section to obtain the optimal fiber form and the optimal fineness, and the non-woven treatment is carried out by using a physical method to obtain the excellent sound absorption function. The invention not only reduces the material cost of the sound-absorbing cotton for the automobile, but also reduces the manufacturing cost of the sound-absorbing cotton, has better sound-absorbing performance than the common wool material, has simple and rapid process and no pollution, meets the requirement of low VOC of the automobile, and has convenient recycling of polyester fiber, environmental protection and energy saving.
Drawings
FIG. 1 is a flow chart of a molding process;
FIG. 2 is a sample diagram of example 1;
FIG. 3 sample graph of example 2;
FIG. 4 sample graph of example 3;
FIG. 5 sample graph of example 4;
FIG. 6 Sound absorption coefficient curves for example 5 with weight 600 gsm/thickness 15mm,80%2.2D regular fiber and flat fiber;
FIG. 7 is a graph of the sound absorption coefficient of an air-laid sound absorbing cotton of example 6 having a weight of 1000 gsm/thickness of 20mm,80%2.2D containing no flat fibers and 30% flat fibers.
Detailed Description
Preparing materials: the special-shaped polyester fiber is prepared by processing flat spinneret orifices on a spinneret plate and carrying out melt spinning.
Low melting point fiber, 1.5D black fiber denim cotton are commercially available.
The process flow shown in figure 1 is adopted, and the non-woven process is a carding and needle-punching forming process flow: the mixed fibers shown in Table 1 were mixed and opened in sequence, loosened in a vibrating hopper, carded by a carding machine, cross-lapped to form a web, needled by a needle loom, and cut into sheets by a sheet cutter. The fiber web formed by the process is needled and then is formed by composite film pressing, and the sound absorption effect of the plate is shown in tables 2 to 5
The formulations of the examples are shown in Table 1:
sample 1 of example 1 is shown in FIG. 2, and the sound absorption effect is shown in Table 2:
sample 2 of example 2 is shown in fig. 3, and the sound absorption effect is shown in table 3:
sample 3 of example 3 is shown in fig. 4, and the sound absorption effect is shown in table 4:
sample 4 of example 4 is shown in FIG. 5, and the sound absorption effect is shown in Table 5:
from the sound absorption test results, the sound absorption cotton prepared by the process has excellent stiffness, tensile strength and noise reduction performance as an automobile structural part. The flat fibers are added into the raw materials of the air-laid net in a certain proportion, so that the sound absorption performance can be greatly improved, the gram weight of the material is reduced, and the light weight effect is achieved.
Example 5
The flat cross-section polyester non-woven fabric with the surface density of 600gsm and the flat fibers with the same fineness are compared with the conventional PET fibers, and the sound absorption effect is improved when the flat fibers are added through comparison. As shown in FIG. 6, the sound absorption coefficient curve of the low-melting-point fiber 20%,80%2.2D conventional fiber and the flat fiber of the comparative example with a weight of 600 gsm/thickness is shown, the sound absorption coefficient is steadily improved with the frequency increase of the flat fiber with 80%, and the sound absorption tooth curve effect is better than that of the conventional fiber with 80%2.2D, as shown in Table 6:
the flat fiber containing 80 percent of the fiber increases along with the frequency, and the sound absorption coefficient is stably improved and is better than the sound absorption effect of 80 percent of the flat 2.2D conventional fiber.
Example 6
1000gsm 20mm air-laid sound-absorbing cotton with flat fibers accounting for 30%; the other is 1000gsm 20mm air-laid sound-absorbing cotton, the flat fiber accounts for 30 percent,
as shown in the sound absorption coefficient curve of FIG. 7, the ratio of the air-laid sound absorbing cotton with the surface density of 1000 gsm/thickness of 20mm to the air-laid sound absorbing cotton containing 30% of the flat fibers to the air-laid sound absorbing cotton containing no flat fibers is higher than that of the air-laid sound absorbing cotton containing 30% of the flat fibers, and the sound absorption coefficient is obviously improved along with the increase of the frequency.
The sound absorption coefficient using the flat fibers was compared with that of the conventional fibers, see table 7:
from table 7, it can be seen that the sound absorption coefficient of the air-laid sound absorbing cotton containing 30% of flat fibers is significantly improved at a frequency of 400 to 10,000.
Claims (7)
1. A preparation method of high-performance polyester profiled fiber sound-absorbing cotton for automobiles is characterized by comprising the following steps: the sound-absorbing cotton is produced by adopting 20-42% of low-melting-point fiber, 30-46% of polyester fiber with flat section form and 12-50% of denim cotton, performing non-woven treatment by using a physical method and performing an air-laid process on the fiber.
2. The method for preparing the high-performance polyester profiled fiber sound-absorbing cotton for the automobiles according to claim 1, is characterized in that: the fineness of the polyester fiber with flat section shape is 0.5D-4.4D.
3. The method for preparing the high-performance polyester profiled fiber sound-absorbing cotton for the automobiles according to claim 1 or 2, wherein the method comprises the following steps: the polyester fiber with the flat section is formed by processing special-shaped spinneret holes on a spinneret plate and carrying out melt spinning.
4. The method for preparing the high-performance polyester profiled fiber sound-absorbing cotton for the automobiles according to claim 1, is characterized in that: the adopted non-woven process is a carding and needle-punching forming process flow: the production process includes the steps of mixing, vibrating cotton box, carding with carding machine, cross lapping machine to form web, needling with needle machine, cutting with plate cutter, forming web with fiber, needling, and pressing to form.
5. High-performance polyester profiled fiber sound-absorbing cotton for automobiles, which is obtained by the preparation method according to claims 1 to 4.
6. The high-performance polyester profiled fiber sound-absorbing cotton for the automobile as claimed in claim 5, wherein: the surface density is 600-1000gsm, and the thickness is 15-20 mm.
7. Use of the high performance polyester profiled fiber acoustic wool for automobile according to claim 5 or 6 in the engine compartment, the inner side of the instrument panel, the inner side of the door panel, the A, B, C pillar of the vehicle, and the position in the trunk.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911356031.XA CN111038039A (en) | 2019-12-25 | 2019-12-25 | High-performance polyester profiled fiber sound-absorbing cotton for automobile |
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| CN201911356031.XA CN111038039A (en) | 2019-12-25 | 2019-12-25 | High-performance polyester profiled fiber sound-absorbing cotton for automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI764202B (en) * | 2019-08-30 | 2022-05-11 | 南韓商匯維仕股份公司 | Sound-absorbing air duct for vehicle containing polyester fiber with low melting point |
| CN115074915A (en) * | 2021-07-30 | 2022-09-20 | 武汉纺织大学 | Lake wool fiber/PANOF fiber flame-retardant sound-absorbing material and preparation method thereof |
| WO2023039026A1 (en) * | 2021-09-08 | 2023-03-16 | Armstrong World Industries, Inc. | Acoustical building panel and surface covering systems utilizing the same |
| US11958308B1 (en) | 2023-05-31 | 2024-04-16 | G13 Innovation In Production Ltd | Thermal paper, and methods and systems for forming the same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI764202B (en) * | 2019-08-30 | 2022-05-11 | 南韓商匯維仕股份公司 | Sound-absorbing air duct for vehicle containing polyester fiber with low melting point |
| CN115074915A (en) * | 2021-07-30 | 2022-09-20 | 武汉纺织大学 | Lake wool fiber/PANOF fiber flame-retardant sound-absorbing material and preparation method thereof |
| WO2023039026A1 (en) * | 2021-09-08 | 2023-03-16 | Armstrong World Industries, Inc. | Acoustical building panel and surface covering systems utilizing the same |
| US11958308B1 (en) | 2023-05-31 | 2024-04-16 | G13 Innovation In Production Ltd | Thermal paper, and methods and systems for forming the same |
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Application publication date: 20200421 |