CN112123895A - Automobile ceiling interior material - Google Patents

Automobile ceiling interior material Download PDF

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Publication number
CN112123895A
CN112123895A CN202010992394.9A CN202010992394A CN112123895A CN 112123895 A CN112123895 A CN 112123895A CN 202010992394 A CN202010992394 A CN 202010992394A CN 112123895 A CN112123895 A CN 112123895A
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CN
China
Prior art keywords
layer
fabric layer
weft
interior material
glass fiber
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Pending
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CN202010992394.9A
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Chinese (zh)
Inventor
刘燕平
王朝臣
刘伦贤
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SHANGHAI JIEYINGTU NEW MATERIAL TECHNOLOGY CO LTD
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SHANGHAI JIEYINGTU NEW MATERIAL TECHNOLOGY CO LTD
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Publication of CN112123895A publication Critical patent/CN112123895A/en
Pending legal-status Critical Current

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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
    • B32B5/022—Non-woven fabric
    • 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
    • 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
    • B32B5/026—Knitted fabric
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • 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
    • B32B5/245—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 being a foam layer
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R13/0212—Roof or head liners
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • 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
    • B32B2262/0223—Vinyl resin fibres
    • 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
    • B32B2262/0253—Polyolefin fibres
    • 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
    • B32B2262/0261—Polyamide fibres
    • 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
    • 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
    • B32B2262/0292—Polyurethane fibres
    • 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
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The application discloses car roof interior material, car roof interior material includes from the top down last non-woven fabrics layer in proper order, goes up glass fiber layer, rigid foam layer, lower glass fiber layer, non-woven fabrics layer and weft knitting interval fabric layer down, wherein after bonding each other between each layer, combines each other through the mode of hot mould shaping to make it have good third dimension, contact comfort and plane ductility.

Description

Automobile ceiling interior material
Technical Field
The invention relates to the field of automobile interior materials, in particular to an automobile ceiling interior material.
Background
With the development of science and technology, people have increased demands for interior materials of automobile roofs. The textile is healthy and comfortable, and is widely applied in the field of automobiles. The automobile ceiling interior material is generally a material compounded by textile fabric, sponge and warp knitting KS cloth. The addition of the sponge ensures that the automobile ceiling material has the advantages of good shock absorption, comfort and the like. However, materials added into the sponge layer are generally required to be baked by flame to melt the surface layer of the sponge, and then other material layers are adhered to the sponge to realize compounding.
However, after being baked by flame, the sponge can generate peculiar smell, benzene hydrocarbons, aldehydes and ketones and other harmful organic matters, so that the VOC value of the existing automobile roof shed cloth is high; when the VOC value reaches a certain concentration, symptoms such as headache, nausea, vomiting, hypodynamia and the like can be caused, even convulsion and coma can be caused in severe cases, the liver, the kidney, the brain and the nervous system are injured, serious consequences such as hypomnesis and the like are caused, and the health of producers and consumers is harmed.
In addition, the aging of the sponge is accelerated by the increase of light and temperature, the sponge becomes hard after aging, the recovery capability is reduced, the functionality and the appearance are poor, and the service life of the material is shortened.
In the prior art, the material is generally compounded and then subjected to subsequent treatment, and the VOC value of the sponge in the use process is reduced through the subsequent treatment.
But flame roasting is still needed in the subsequent treatment process. Therefore, the problem that the sponge generates harmful gas when being burnt and bonded cannot be solved.
In addition, the added sponge still has aging problems and increases the complexity and cost of preparation; in the prior art, other materials are considered to replace the sponge, but the stereoscopic impression, the contact comfort, the plane ductility and the like of the other materials are poor, the materials are easy to break during hot die forming, the performance and the attractiveness are affected, the weaving difficulty is high, and the cost is high.
Patent document 1 (publication No. CN110103479A) discloses the following technique: the fabric, the sponge and the base fabric are compounded together through flame compounding equipment to form a three-layer-structure composite fabric, and then the composite fabric is subjected to ozone treatment to prepare the automobile ceiling fabric with a low VOC value. However, when the flame of the sponge is compounded in the method, the PU material releases toxic gas when being burnt, the toxic gas is harmful to human bodies, the sponge has the aging problem, the ozone treatment cost is high, the preparation process is complex, and the time and the labor are wasted.
Patent document 2 (publication No. CN208020873U) discloses the following technique: the non-woven layer, the foaming layer and the warp-knitted fabric layer are bonded and connected by adopting an adhesive to prepare the automobile ceiling material. However, the plane ductility of the warp knitted fabric in the method is poor, the fracture phenomenon is easy to occur during hot die forming, the performance and the appearance are influenced, and the weaving difficulty of the warp knitted fabric is high, and the cost is high.
Therefore, there is a need to develop an inexpensive interior material for automobile roofs, which has a low VOC value and good planar ductility.
Disclosure of Invention
An object of the present invention is to provide an interior material for a vehicle ceiling, which does not require a flame baking process during a manufacturing process, and has good cubic effect, touch comfort, and plane ductility without containing a sponge.
In order to achieve at least one of the above objects of the present invention, the present invention provides an interior material for an automobile ceiling, comprising an upper nonwoven fabric layer, an upper glass fiber layer, a rigid foam layer, a lower glass fiber layer, a lower nonwoven fabric layer, and a weft-knitted spacer fabric layer, which are sequentially arranged from top to bottom, wherein the layers are bonded to each other and then thermally molded.
According to an embodiment of the present invention, the thickness of each of the upper nonwoven fabric layer and the lower nonwoven fabric layer is 0.2 to 0.5 mm.
According to an embodiment of the invention, the thickness of the upper glass fiber layer and/or the lower glass fiber layer is 3-5 mm.
According to an embodiment of the present invention, the thickness of the rigid foam layer is 8-10 mm
According to an embodiment of the invention, the thickness of the weft-knitted spacer fabric layer is 2-4 mm.
According to one embodiment of the invention, the weft-knitted spacer fabric layer is composed of at least one group of surface fabrics on the upper surface and the lower surface and a middle spacer thread.
According to one embodiment of the invention, the upper surface fabric and the lower surface fabric of the weft-knitted spacer fabric layer adopt yarns with the fineness of 55-333 dtex, and the spacer yarns adopt yarns with the fineness of 22-111 dtex.
According to an embodiment of the invention, the weaving interval of the weft-knitted interval fabric layer is 1-3 needles.
According to one embodiment of the invention, the weft-knitted spacer fabric layer is woven using a weft knitting machine with greater than 28 needles.
According to an embodiment of the invention, the weft spacer fabric layer is implemented to consist of at least one material selected from the group consisting of polyester, polyethylene, polypropylene, polyamide, poly-paraphenylene terephthalamide, polytetrafluoroethylene, polyurethane, or polyvinyl alcohol.
Further objects and advantages of the invention will be fully apparent from the ensuing description.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.
Drawings
Fig. 1 is a schematic view showing the structure of an interior material for a ceiling of an automobile according to the present invention.
Fig. 2 shows a schematic view of the weft-knitted spacer fabric layer in the automotive ceiling interior material according to the present invention.
Detailed Description
The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
An automotive ceiling interior material according to a preferred embodiment of the present invention will be described in detail below with reference to fig. 1 and 2 of the specification, wherein the automotive ceiling interior material comprises an upper nonwoven fabric layer 10, an upper glass fiber layer 20, a rigid foam layer 30, a lower glass fiber layer 40, a lower nonwoven fabric layer 50 and a weft-knitted spacer fabric layer 60 in this order from top to bottom, wherein the layers are bonded to each other by means of hot molding.
Preferably, the hot die shaping is drying hot shaping, the temperature of the hot die shaping is 100-220 ℃, the tension is 0.5-5 MPa, and the time is more than or equal to 3 seconds.
The weft-knitted spacer fabric layer 60 has good planar extensibility, and is extruded when hot-molded, and is deformed without being broken when stressed in a plane.
In another aspect, the weft-knitted spacer fabric layer 60 is composed of a surface fabric and an intermediate spacer thread. The vertical surface of the intermediate spacer thread is connected to the upper and lower surface fabrics to form the weft-knitted spacer fabric layer 60 having a certain thickness. When the external force acts, the spacing wires are stressed and bent, and the vertical state is recovered after the external force disappears, so that the whole automobile ceiling interior material has good elastic resilience.
In weft knitting, the yarns are sequentially placed on corresponding knitting needles of a weft knitting machine along the weft direction to form loops, and are mutually interlooped in the longitudinal direction to form a weft knitted fabric. In the course of weaving the weft-knitted spacer fabric layer, 4 rows are woven as one minimum cycle, row 1: the 1 st needle is in the front needle bed to form a loop, the 2 nd needle is not knitted, the 3 rd needle is in the back needle bed to form a loop, and the 4 th needle is not knitted; line 2: the 1 st needle is in the back needle bed to form a loop, the 2 nd needle is not knitted, the 3 rd needle is in the front needle bed to form a loop, and the 4 th needle is not knitted; line 3: knitting is not carried out on the 1 st needle, the 2 nd needle is positioned in the front needle bed to form a loop, knitting is not carried out on the 3 rd needle, and the 4 th needle is positioned in the back needle bed to form a loop; line 4: no knitting is performed on the 1 st needle, the 2 nd needle is in the back needle bed, no knitting is performed on the 3 rd needle, and the 4 th needle is in the front needle bed.
In the above manner, the weft-knitted spacer fabric layer 60 is formed.
It is worth mentioning that the upper and lower surfaces of the weft-knitted spacer fabric layer 60 adopt yarns with the fineness of 55-333 dtex. If it is less than this range, the hooked yarn is apt to be fuzzed. If it is higher than this range, the surface of the automobile ceiling interior material is very rough. The spacing filament adopts yarn with the fineness of 22-111 dtex. Experiments show that if the thin spacing wires have poor rebound resilience, the thick spacing wires are easy to expose, so that the whole interior material of the automobile ceiling is uneven, and the texture of the whole interior material of the automobile ceiling is poor. Preferably, the weft spacer fabric layer 60 is woven using a weft knitting machine with greater than 28 stitches. More preferably, the weaving interval of the weft-knitted interval fabric layer 60 is 1-3 needles.
The upper glass fiber layer 20, the lower glass fiber layer 40 and the rigid foam layer 30 not only have good sound insulation effect, but also have light weight and high strength. The nonwoven material has good impact resistance. The coating is applied to the automobile roofs, and has the advantages of low VOC value, good appearance effect, durability, sound absorption and shock absorption.
The thickness of the upper non-woven fabric layer 10 and the thickness of the lower non-woven fabric layer 50 are both 0.2-0.5 mm, the thickness of the upper glass fiber layer 20 and/or the thickness of the lower glass fiber layer 40 are both 3-5 mm, and the thickness of the rigid foam layer 30 is 8-10 mm. The thickness of the weft-knitted spacer fabric layer 60 is 2-4 mm.
Generally, the greater the thickness of each layer, the better the impact resistance, sound insulation, elasticity, etc., but the greater the thickness, which affects the cost and appearance, a good ratio of the layers is required.
The weft-knitted spacer fabric layer 60 in one of the automotive headliner materials as described above is implemented to be composed of at least one material selected from polyester, polyethylene, polypropylene, polyamide, polyparaphenylene terephthalamide, polytetrafluoroethylene, polyurethane, or polyvinyl alcohol.
The spacer filaments are implemented by being composed of at least one material selected from polyester, polyethylene, polypropylene, or polyamide. The spacing filaments are generally monofilaments which have good rigidity, rebound resilience and compression resilience.
The weft-knitted spacer fabric has the advantages that the stereoscopic effect is good, all layers are adhered by glue in the processing process, no harmful gas is generated, the VOC value is low, and the fabric is healthy and environment-friendly.
The upper and lower non-woven fabric layers 10 and 50 are implemented to be made of at least one of polyester, polyethylene, polypropylene, polyamide, poly-paraphenylene terephthalamide, polytetrafluoroethylene, polyurethane, or polyvinyl alcohol. The distribution and the extensibility of the non-woven fabric are uniform in the longitudinal direction and the transverse direction, and the non-woven fabric is favorably attached to other layers and is favorably subjected to hot die forming.
Example 1
An upper non-woven fabric layer 10 with the thickness of 0.3mm, an upper glass fiber layer 20 with the thickness of 5mm, a rigid foam layer 30 with the thickness of 9mm, a lower glass fiber layer 40 with the thickness of 5mm, a lower non-woven fabric layer 50 with the thickness of 0.3mm and a weft-knitted spacing fabric layer 60 with the upper surface fabric and the lower surface fabric formed by yarns with the fineness of 100dtex and spacing yarns with the fineness of 100dtex are combined in a hot die mode sequentially to form the automobile roof interior material.
Example 2
An upper non-woven fabric layer 10 with the thickness of 0.2mm, an upper glass fiber layer 20 with the thickness of 4mm, a rigid foam layer 30 with the thickness of 8mm, a lower glass fiber layer 40 with the thickness of 4mm, a lower non-woven fabric layer 50 with the thickness of 0.2mm and a weft-knitted spacing fabric layer 60 with the upper surface fabric and the lower surface fabric formed by yarns with the fineness of 100dtex and spacing yarns with the fineness of 100dtex are combined in a hot die mode sequentially to form the automobile roof interior material.
Figure BDA0002691367390000051
It will be appreciated by persons skilled in the art that the embodiments of the invention shown in the foregoing description are by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims (10)

1. The automotive ceiling interior material is characterized by comprising an upper non-woven fabric layer, an upper glass fiber layer, a rigid foam layer, a lower glass fiber layer, a lower non-woven fabric layer and a weft-knitted spacer fabric layer which are sequentially arranged from top to bottom, wherein the layers are bonded with each other and then are combined with each other in a hot molding mode.
2. The automotive ceiling interior material according to claim 1, wherein the upper nonwoven fabric layer and the lower nonwoven fabric layer each have a thickness of 0.2 to 0.5 mm.
3. The automotive headliner interior material according to claim 1, wherein the upper glass fiber layer and/or the lower glass fiber layer each have a thickness of 3 to 5 mm.
4. The automotive headliner interior material according to claim 1, wherein the thickness of the rigid foam layer is 8 to 10 mm.
5. The automotive ceiling interior material according to claim 1, wherein the thickness of the weft-knitted spacer fabric layer is 2 to 4 mm.
6. The automotive headliner interior material as recited in claim 1 or 5, wherein the weft-knitted spacer fabric layer is composed of at least one set of surface fabrics on both upper and lower surfaces and an intermediate spacer filament.
7. The automotive ceiling interior material as claimed in claim 6, wherein the upper and lower surface fabrics of the weft-knitted spacer fabric layer are yarns having a fineness of 55 to 333dtex, and the spacer yarn is a yarn having a fineness of 22 to 111 dtex.
8. The automotive ceiling interior material according to claim 7, wherein the weft-knitted spacer fabric layer is knitted with 1 to 3 stitches.
9. The automotive headliner material as recited in claim 7, wherein the weft-knitted spacer fabric layer is woven using a weft knitting machine having more than 28 needles.
10. The automotive headliner material as recited in claim 1, wherein the weft-knitted spacer fabric layer is embodied to be composed of at least one material selected from polyester, polyethylene, polypropylene, polyamide, polyparaphenylene terephthalamide, polytetrafluoroethylene, polyurethane, or polyvinyl alcohol.
CN202010992394.9A 2020-09-07 2020-09-21 Automobile ceiling interior material Pending CN112123895A (en)

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CN202021923830 2020-09-07
CN2020219238309 2020-09-07

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CN112123895A true CN112123895A (en) 2020-12-25

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103921504A (en) * 2014-04-30 2014-07-16 天津博信汽车零部件有限公司 Novel vehicle roof and production process thereof
CN104309234A (en) * 2014-10-29 2015-01-28 长城汽车股份有限公司 Automobile roof and manufacturing method thereof
CN107538834A (en) * 2017-09-08 2018-01-05 张家港长泰汽车饰件材料有限公司 Low VOC automotive trims ceiling material and preparation method thereof
CN110370758A (en) * 2019-08-15 2019-10-25 张正常 With antibacterial, mothproof, aromatic function 3 D stereo textile fabric and its application

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103921504A (en) * 2014-04-30 2014-07-16 天津博信汽车零部件有限公司 Novel vehicle roof and production process thereof
CN104309234A (en) * 2014-10-29 2015-01-28 长城汽车股份有限公司 Automobile roof and manufacturing method thereof
CN107538834A (en) * 2017-09-08 2018-01-05 张家港长泰汽车饰件材料有限公司 Low VOC automotive trims ceiling material and preparation method thereof
CN110370758A (en) * 2019-08-15 2019-10-25 张正常 With antibacterial, mothproof, aromatic function 3 D stereo textile fabric and its application

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