CN109049923B - Curtain cloth of automobile skylight sunshade curtain and production method thereof - Google Patents

Curtain cloth of automobile skylight sunshade curtain and production method thereof Download PDF

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Publication number
CN109049923B
CN109049923B CN201810694683.3A CN201810694683A CN109049923B CN 109049923 B CN109049923 B CN 109049923B CN 201810694683 A CN201810694683 A CN 201810694683A CN 109049923 B CN109049923 B CN 109049923B
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fabric
thermoplastic material
curtain
fibers
curtain cloth
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CN109049923A (en
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李海帆
单汝坤
朱维珍
王克强
王国淑
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Yantai Zhenghai High Technology Co ltd
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Yantai Zhenghai High Technology Co ltd
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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
    • B32B5/024—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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B32B38/004—Heat treatment by physically contacting the layers, e.g. by the use of heated platens or rollers
    • 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
    • B32B5/22—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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/0007—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs moveable head-liners, screens, curtains or blinds for ceilings
    • B60J7/0023—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs moveable head-liners, screens, curtains or blinds for ceilings flexible and foldable
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/244—All polymers belonging to those covered by group B32B27/36
    • 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
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/41—Opaque
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Woven Fabrics (AREA)

Abstract

The application relates to a curtain cloth of a sun-shading curtain of an automobile skylight, in particular to a curtain cloth hard edge scheme for preventing a rail from being separated. The curtain cloth body is a single-layer fabric or a composite fabric, and the composite fabric is formed by compounding a surface fabric and a back fabric; the cord fabric is characterized in that the hard edges on the two sides of the cord fabric body are formed by covering the cord fabric body with a thermoplastic material, and the melting point of the thermoplastic material is more than 160 ℃ and lower than the melting point of the fibers of the cord fabric body. The thermoplastic material may also contain high modulus fibers extending in the transverse direction. The hard edge formed by the scheme has high transverse bending strength, so that the curtain cloth is not easy to fall off from the track, and the longitudinal bending strength is not high, so that the winding of the curtain cloth is not influenced.

Description

Curtain cloth of automobile skylight sunshade curtain and production method thereof
Technical Field
The invention relates to a curtain cloth of a sun-shading curtain of an automobile skylight, in particular to a curtain cloth with a function of preventing a rail from being separated.
Background
The sun-shading curtain for the automobile skylight mainly comprises curtain cloth, a scroll and a cross beam, wherein the front end of the curtain cloth is fixed on the cross beam, and the rear section of the curtain cloth is wound on the scroll. The opening and closing of the curtain is achieved by fitting the sun blind to the skylight frame. The front cross beam is assembled in the rails on two sides of the frame through the sliding feet at two ends, and the tail scroll is assembled on the frame through the fixing mechanisms at two ends. The motor drives the sliding foot to run in the track and drives the cross beam to move back and forth, so that the curtain cloth is opened and closed. The curtain cloth keeps a certain longitudinal tension by means of a force storage device in the reel, and passively uncoils and coils when the cross beam moves forwards and backwards.
The cord is longitudinally striped under longitudinal tension due to the large amount of tension accumulated on the spool, particularly the maximum tension when the cord is fully closed. In order to eliminate longitudinal stripes on the curtain cloth and enable the curtain cloth to be flatter after being unfolded, a scheme of applying transverse tensile stress on two sides of the curtain cloth is generally adopted in the latest sun-shading curtain, wherein a common scheme is as shown in figure 1, hard edges 3 are arranged on two sides of a curtain cloth body 1, rails 2 are specially arranged on two sides of a skylight frame except for running rails of sliding feet, the hard edges 3 are assembled in the rails 2, when the widths of the rails 2 are proper, the curtain cloth can generate proper transverse tension, and the hard edges 3 cannot be separated from the rails 2 in the opening and closing process of the curtain cloth, so that the longitudinal stripes on the curtain cloth are eliminated.
The hard edge has various forming modes, including metal sheets, plastic strips, curtain cloth and curtain cloth, and different hard edge schemes become the technical characteristics of various skylight sunshade screen manufacturers.
Disclosure of Invention
The invention aims to provide a curtain cloth of a sun-shading curtain of an automobile skylight, wherein the left side and the right side of the curtain cloth are provided with hard edges with the function of preventing the curtain cloth from falling off a track.
The scheme of the application is as follows:
the curtain cloth of the sun-shading curtain for the automobile skylight comprises a curtain cloth body and hard edges on two sides of the curtain cloth body, wherein the curtain cloth body is made of single-layer fabric or composite fabric, and the composite fabric is formed by compounding a surface layer fabric and a back layer fabric; the cord fabric is characterized in that the hard edges on the two sides of the cord fabric body are formed by covering the cord fabric body with a thermoplastic material, and the melting point of the thermoplastic material is more than 160 ℃ and lower than the melting point of the fibers of the cord fabric body.
Preferably, the thermoplastic material is PA6 or PP.
Preferably, the thermoplastic material further comprises high modulus fibers distributed in the transverse direction.
Furthermore, the thermoplastic material also contains high modulus fibers which are longitudinally distributed on the upper layer or the lower layer of the hard edges at the two sides of the curtain cloth body.
Further, the high modulus fiber is one or more of aramid fiber, carbon fiber, glass fiber and basalt fiber.
For the scheme that the curtain cloth body is the composite cloth, the surface layer fabric and the back layer fabric are preferably compounded together through the thermoplastic material forming the hard edge.
The production method of the curtain cloth of the sun-shading curtain for the automobile skylight is characterized in that the thermoplastic material is made into a film and placed on the upper layer and the lower layer of the two sides of the curtain cloth body, and a hot die with a non-stick surface is used for heating and pressurizing to enable the thermoplastic material to permeate into fabric gaps of the curtain cloth body.
Further, the thermoplastic material is formed into a film containing high modulus fibers extending in the transverse direction.
The other production method of the curtain cloth of the sun-shading curtain for the automobile skylight is characterized in that the thermoplastic material is made into woven cloth and placed on the upper layer and the lower layer of the two sides of the curtain cloth body, and a hot die with a non-stick surface is used for heating and pressurizing to enable the thermoplastic material to penetrate into fabric gaps of the curtain cloth body.
Furthermore, the thermoplastic material is used to make woven fabric, and the width direction yarn contains high modulus fiber.
The method for forming the hard edge by using the thermoplastic material to coat the cord fabric has the advantages of simple operation, good hardness of the edge and good wear resistance. The melting point of PA6 is more than 200 ℃, is lower than the melting point of common PET fiber, and is far higher than the common test temperature in the automobile industry, thus being a more ideal choice. The PP has a melting point of over 160 ℃, meets the temperature resistance requirement of the sunshade curtain cloth, is cheap and easy to obtain, and is also a choice.
In the thermoplastic material coating mode, the cord fabric is arranged in the middle, and the bending strength of the thermoplastic material is required. These thermoplastic materials themselves have a relatively low modulus and a relatively low stiffness, and require a relatively large amount to achieve the desired flexural strength. The scheme of containing high modulus fiber only utilizes the proper melting point and bonding function of the thermoplastic material, and the scheme of providing the bending strength by the high modulus fiber is more reasonable. High modulus fibers are used only in the width direction because the bending stresses experienced by the cord stiff edge are predominantly transverse.
When the cord fabric is wound, if the upper layer and the lower layer of the hard edge contain longitudinal high-modulus fibers, the winding of the fabric is affected, so that only the upper layer or the lower layer of the hard edge is provided with the longitudinal high-modulus fibers, and the side without the high-modulus fibers can be stretched or compressed during winding, so that the winding is not affected greatly.
The high modulus fiber can be glass fiber, carbon fiber, basalt fiber or aramid fiber, in short, the high modulus fiber is high, and the stress deformation is small. Of course, there is a prerequisite that the melting point is higher than the thermoplastic material, which would otherwise have melted during the production of the hard edge and the properties would be impaired.
Many cord fabrics with shading requirements are compounded by warp knitting cloth and black plain cloth, and usually compounded by TPU films. When PA6 is used to form the hard edge, the melting point of TPU is low, it causes bleeding at the process temperature of hard edge formation, and it cannot be integrated with the PA6 of the outer covering, so it is preferable to use PA6 film for the composition of the warp knit face fabric and the black plain fabric back layer.
The thermoplastic material can be made into woven fabric, and the effect of a film can also be realized. What is more critical is that when the woven fabric is made, the high modulus fiber extending transversely is very easy to realize, and the yarn in the same direction can be directly doped with a little high modulus fiber. Longitudinally extending high modulus fibers can also be achieved in this way. The shuttle fabric is required to be adopted, the knitted fabric cannot be adopted, and the yarns of the knitted fabric are curled back and forth, so that the high-modulus fibers are not in a straight state, and the reinforcing effect is influenced.
The use of high temperatures and pressures to cause the thermoplastic material to penetrate the fabric necessitates the use of a mold with a non-stick surface or the problem of sticking of the molten thermoplastic material to the mold is likely to occur.
Drawings
FIG. 1 is a schematic view of a sun blind for a skylight with hard edges on both sides of the curtain cloth embedded in a rail.
Detailed Description
Example 1
The curtain cloth of the sun-shading curtain is made of PET warp-knitted eyelet fabric. 100-150g PP films are respectively placed on the upper and lower parts of the edge of the cord fabric, and hot pressing is carried out for 30s by using a 160 ℃ mould, so that PP permeates into PET fibers to form a hard edge. The surface of the mould is pasted with the Teflon tape, so that the phenomenon of sticking the PP mould can not occur.
Example 2
The curtain cloth of the sun-shading curtain is made of PET warp-knitted eyelet fabric. 80-100g of PA6 films are respectively placed on the upper and lower sides of the edge of the curtain cloth, the films contain 15% of transversely extending aramid fibers, the PET fibers are penetrated by the PA6 after the films are hot-pressed for 20s by a mold with the temperature of 200 ℃, the aramid fibers are attached to the surface of the curtain cloth, a hard edge with higher transverse tensile modulus is formed, and the effect of the hard edge is better than that of the hard edge in example 1.
The warp-knitted mesh fabric generally adopts a scheme of sewing metal sheets at the edges, and the scheme of the two embodiments can achieve the same effect and greatly reduce the comprehensive cost. In addition, the thermoplastic material forming the hard edge can be melted without heating, and only needs to have certain fluidity and be capable of penetrating into the fiber of the cord fabric body.
Example 3
The front surface of the fabric of the sun-shading curtain is made of PET warp-knitted fabric, and the back surface of the fabric of the sun-shading curtain is made of PET plain woven fabric which is bonded together through a TPU adhesive film. The PA6 film is placed on the edge of the sun-shading curtain fabric, 50-80g of the PA6 film is used on the PA6 film, 25-30g of the PA6 film is used on the PA 8932 film, and the PA 8932 film is hot-pressed for 20s by a mould at 200 ℃ so that the PA6 penetrates into the PET fibers to form a hard edge.
Example 4
The front surface of the fabric of the sun-shading curtain is made of PET warp-knitted fabric, and the back surface of the fabric of the sun-shading curtain is made of PET plain woven fabric which is bonded together through a TPU adhesive film. A PA6 film containing 10-20% of transverse aramid fibers is placed at the edge of the sun-shading curtain fabric, 50-60g of the PA6 film is used on the PA6 film, 30-40g of the PA6 film is used on the PA 8932 film, and the PA 8932 film is hot-pressed for 20s by a mold with the temperature of 200 ℃ so that the PA6 penetrates into the PET fibers to form a hard edge.
Example 5
The front surface of the fabric of the sun-shading curtain is made of PET warp-knitted fabric, and the back surface of the fabric of the sun-shading curtain is made of PET plain woven fabric which is bonded together through a TPU film. The PA6 plain fabric is placed on the edge of the sunshade screen fabric, 50-80g of the upper side and 25-40g of the lower side are used, and the upper side and the lower side are hot-pressed for 30s by a mold at 200 ℃ so that the PA6 fiber penetrates into the PET fiber to form a hard edge.
Example 6
The front surface of the fabric of the sun-shading curtain is made of PET warp-knitted fabric, the back surface of the fabric is made of PET plain woven fabric, and the PET warp-knitted fabric and the PET plain woven fabric are bonded together through a PA6 film. The PA6 film is placed on the edge of the sunshade screen fabric, 50-60g of the PA6 film is placed on the PA6 film, 25-30g of the PA6 film is placed on the PA 8932 film, and the PA6 film is hot-pressed for 20s by a mold at 200 ℃ so as to penetrate into the PET fibers to form a hard edge.
The PA6 composite sun visor fabric is adopted, and after the PA6 thermoplastic material for manufacturing the hard edge permeates into the fabric, the PA6 thermoplastic material can be integrated with the PA6 for compounding the curtain cloth body, so that the integrity of the hard edge is stronger, and the reinforcing effect is better.
Example 7
The front surface of the fabric of the sun-shading curtain is made of PET warp-knitted fabric, the back surface of the fabric is made of PET plain woven fabric, and the PET warp-knitted fabric and the PET plain woven fabric are bonded together through a PA6 film. The edge of the sun-shading curtain fabric is provided with a PA6 plain weave fabric, the transverse yarn of the plain weave fabric contains 10-30% of aramid fiber, the longitudinal yarn of the plain weave fabric is pure PA6, 50-60g of the PA6 is used on the upper surface of the plain weave fabric, 25-30g of the PA6 is used on the lower surface of the plain weave fabric, the PA6 fiber is penetrated into the PET fiber through hot pressing for 30s by using a mold at 200 ℃, and the transverse aramid fiber exists in a hard edge in the form of reinforcing fiber. Because the modulus of the aramid fiber is very high and the stress deformation is very small, the stress deformation of the hard edge in the transverse direction is greatly reduced, the rigidity is enhanced, and the effect of preventing the cord fabric from falling off from the track is better. Meanwhile, aramid fibers are not arranged in the longitudinal direction, and the longitudinal rigidity is much lower than that in the transverse direction, so that the cord fabric is still flexible enough when being wound.
Example 8
The front surface of the fabric of the sun-shading curtain is made of PET warp-knitted fabric, the back surface of the fabric is made of PET plain woven fabric, and the PET warp-knitted fabric and the PET plain woven fabric are bonded together through a PA6 film. The edge of the sun-shading curtain fabric is provided with PA6 plain weave, wherein the plain weave of the surface layer contains 10-30% of aramid fiber in both longitudinal yarn and transverse yarn, the gram weight is 50-80g/m2, the plain weave of the back layer contains 20-50% of aramid fiber in transverse yarn, the plain weave of the longitudinal yarn is pure PA6, the gram weight is 25-40g/m2, the fabric is hot-pressed for 30s by a mould at 200 ℃ to enable the PA6 fiber to penetrate into the PET fiber, and the aramid fiber exists in the hard edge in the form of reinforcing fiber.
Example 9
The front surface of the fabric of the sun-shading curtain is made of PET warp-knitted fabric, the back surface of the fabric is made of PET plain woven fabric, and the PET warp-knitted fabric and the PET plain woven fabric are bonded together through a PA6 film. The edge of the sun-shading curtain fabric is provided with PA6 plain weave, transverse yarns in the plain weave of the surface layer contain 20-30% of aramid fibers, pure PA6 is arranged in longitudinal yarns, the gram weight is 50-60g/m2, longitudinal yarns and transverse yarns in the plain weave of the back layer both contain 10-30% of aramid fibers, the gram weight is 30-50g/m2, the fabric is hot-pressed for 30s by a mold at 200 ℃ to enable the PA6 fibers to penetrate into PET fibers, and the aramid fibers exist in a hard edge in the form of reinforcing fibers.
Because the modulus of the aramid fiber is very high and the stress deformation is very small, the deformation of the hard edge in the transverse direction is greatly reduced, the rigidity is enhanced, and the effect of better preventing the cord fabric from being separated from the track is achieved. The surface layer in the longitudinal hard edge contains aramid fiber, so that the tensile strength is also improved. Because one of the upper and lower layers of the hard edge has no aramid fiber in the longitudinal direction, the longitudinal rigidity is not obviously increased on the whole, and the cord fabric still has good flexibility when being wound.
In the above examples, only aramid fibers are cited as high modulus fibers, but glass fibers, basalt fibers, carbon fibers are also possible, and even other high modulus fibers are possible as long as the melting point is not too low.
When the surface fabric and the back fabric of the composite fabric are compounded by the PA6, the PA6 between the surface fabric and the back fabric has certain fluidity in the hard edge forming process, and permeates into the surface fabric and the back fabric to form the hard edge of the cord fabric together with the PA6 of the outer upper layer and the outer lower layer.

Claims (6)

1. The curtain cloth of the sun-shading curtain for the automobile skylight comprises a curtain cloth body and hard edges on two sides of the curtain cloth body, wherein the curtain cloth body is made of single-layer fabric or composite fabric, and the composite fabric is formed by compounding a surface layer fabric and a back layer fabric; the cord fabric is characterized in that the hard edges on the two sides of the cord fabric body are formed by covering the cord fabric body with a thermoplastic material, heating and pressurizing the cord fabric body and penetrating the cord fabric body into fabric gaps of the cord fabric body, the melting point of the thermoplastic material is above 160 ℃ and lower than the melting point of fibers of the cord fabric body, the thermoplastic material also contains transversely distributed high-modulus fibers, and the high-modulus fibers are one or more of aramid fibers, carbon fibers, glass fibers and basalt fibers.
2. A curtain fabric of sun shades for automobile skylights, as defined in claim 1, wherein said thermoplastic material is PA6 or PP.
3. A curtain fabric for a sun blind for automobile skylights according to claim 1, wherein said thermoplastic material further contains high modulus fibers distributed longitudinally above or below the hard edges on both sides of the curtain fabric body.
4. The fabric for an automotive sunroof sunshade according to claim 1, the fabric body being a composite fabric, wherein the face fabric and the back fabric are compounded together by a thermoplastic material forming a hard edge.
5. A method of producing a fabric for a sun blind for an automobile sunroof according to claim 1, wherein the thermoplastic material is formed into a film, the film is placed on the upper and lower layers of both sides of the body of the fabric, and heated and pressed by a hot mold having a non-stick surface to allow the thermoplastic material to penetrate into the fabric gaps of the body of the fabric, and the film made of the thermoplastic material contains high modulus fibers extending in the transverse direction.
6. A method for producing a fabric for a sun blind for an automobile sunroof according to claim 1, wherein the thermoplastic material is woven fabric, the woven fabric is placed on an upper layer and a lower layer on both sides of a fabric body, and heated and pressed by a hot mold having a non-stick surface to allow the thermoplastic material to penetrate into fabric gaps of the fabric body, and a width-direction yarn of the woven fabric made of the thermoplastic material contains high modulus fibers.
CN201810694683.3A 2018-06-29 2018-06-29 Curtain cloth of automobile skylight sunshade curtain and production method thereof Active CN109049923B (en)

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CN112046256A (en) * 2020-09-08 2020-12-08 安徽省阿尔法汽车零部件有限公司 Curtain cloth of automobile skylight sunshade curtain

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