CN111572137A - Preparation method of environment-friendly automotive interior base fabric - Google Patents
Preparation method of environment-friendly automotive interior base fabric Download PDFInfo
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- CN111572137A CN111572137A CN202010462108.8A CN202010462108A CN111572137A CN 111572137 A CN111572137 A CN 111572137A CN 202010462108 A CN202010462108 A CN 202010462108A CN 111572137 A CN111572137 A CN 111572137A
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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
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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
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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
- B32B5/06—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 characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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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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- 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
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
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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
- D04H1/42—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
- D04H1/4391—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 characterised by the shape of the 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
- D04H1/40—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
- D04H1/492—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 by fluid jet
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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
- 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
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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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
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- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention relates to an environment-friendly automobile interiorThe preparation method of the decorative base cloth comprises the following steps: (1) dispersing polyester fibers with the fineness of 0.2-0.6 dtex into deionized water, adding a softening agent, and uniformly stirring to obtain a polyester fiber solution; (2) preparing two polyester fiber layers by introducing the polyester fiber solution, and then compounding the polyester fiber layers with the polyester fiber base fabric to ensure that the polyester fiber base fabric is arranged in the middle and the two sides of the polyester fiber base fabric are the polyester fiber layers to obtain three-layer composite cloth; (3) and (3) carrying out high-pressure swinging spunlace reinforcement, squeezing dehydration and vacuum water absorption on the three layers of leather base cloth, and then drying to obtain the environment-friendly automotive interior base cloth. The automotive interior base fabric prepared by the invention eliminates water needle lines on the surface of the product, is not fluffy and layered, has smooth and tidy cloth surface and soft and exquisite hand feeling, and the finally prepared environment-friendly automotive interior base fabric has the density of 0.35-80 g/cm2The gram weight is 120-300 g/m2In the meantime.
Description
Technical Field
The invention relates to a preparation method of environment-friendly automotive interior base fabric, and belongs to the technical field of composite spunlace non-woven fabric.
Background
The automobile industry has become the pillar industry in China, and the development of the automobile industry brings prosperity to the automobile interior decoration industry and related industries in China. With the improvement of living demands of people, people put new requirements on the comfort, luxury, safety and environmental protection of automobiles, and therefore, opportunities are brought to the application of textile materials. The automobile interior fabric is cloth on parts such as an automobile door panel, an automobile seat, an instrument panel, a carriage inner wall, a roof, a steering wheel handle sleeve and the like. At present, the production of non-woven materials for automobiles mostly adopts the processes of needling, spun-bonding, melt-blowing and hot rolling and the like. However, the processing technology of the materials has the problems that the production process is not environment-friendly, the volatile toxic gas of the processed products is not environment-friendly, and the use process of the products is not environment-friendly.
There are also numerous patent reports on the field of nonwovens, for example: chinese patent document CN103409942A discloses a method for manufacturing a base fabric for artificial leather, which belongs to the non-woven fabric manufacturing technology, and superfine fibers are dispersed in water to prepare superfine fiber suspension; the method comprises the steps of uniformly paving the superfine fiber turbid liquid on the surface of an inclined net through papermaking equipment, conveying a knitted base fabric into the papermaking equipment, adsorbing a fiber web on the surface of the knitted base fabric, carrying the fiber web into spunlace equipment to perform high-pressure water jet treatment, enabling the fiber web to be tangled on the surface of the base fabric, reversely rotating the surface of the treated knitted base fabric and the surface of a superfine fiber composite downwards, placing the treated knitted base fabric and the surface of the superfine fiber composite on a unwinding device in front of the papermaking equipment, uniformly paving the superfine fiber turbid liquid on the surface of the inclined net through the papermaking equipment, repeatedly reversing, paving the superfine fiber and spunlace, putting the base fabric for the artificial leather into a hot water tank, freely contracting in a weft direction, decompressing and. But the process is complex, the equipment is complicated, the operation is inconvenient, the spunlace pressure is low, the prepared leather base cloth is not easy to form, and the composition is not ceramic.
In addition, the inventor of the present invention also discloses a patent document of a preparation method of a completely environment-friendly leather base fabric in the previous period, and the patent publication number is CN 107953497A. Dispersing polyester fibers into water to prepare a polyester fiber suspension; adding a dispersing agent, and uniformly stirring to obtain a terylene solution; preparing two layers of polyester paper by using an upper paper machine and a lower paper machine through a polyester solution by a paper making method, and compounding the upper polyester paper layer and the lower polyester paper layer with base cloth through a compounding roller to enable the base cloth to be in the middle and enable two surfaces of the base cloth to be polyester paper, so that leather cloth is obtained; carrying out high-pressure spunlace and squeezing dehydration on the leather cloth, then drying in a drying cylinder, rolling, and finally slitting to obtain the leather cloth. However, the process adopts fixed common spunlace for compounding, and the product is reinforced by high-pressure water flow, so that the surface of the product can generate one course of water needle lines, the surface of the product is rough, the coating is not easy to occur, the hand feeling of the product is influenced, and the attractiveness of the product is influenced.
Disclosure of Invention
Aiming at the defects and limitations of the existing spunlace technology, especially the higher requirements of the existing automotive interior field on comfort, luxury, safety and environmental protection, the invention provides a preparation method of an environment-friendly automotive interior base fabric. The invention innovatively uses swing spunlace, uses fixed common spunlace to pre-reinforce, and then reinforces the two surfaces of the product through six swing spunlaces in front and back, so that the product is more ceramic and solid and reaches the industrial standard of leather cloth; the addition of the softening agent makes the leather smoother and better in hand feeling. The base cloth is formed by intertwining and compounding the superfine polyester fiber raw material and the polyester fiber base cloth, is suitable for manufacturing the automotive interior fabric impregnated or coated by the water-based PU, and is colorless, tasteless and environment-friendly. The environment-friendly automotive interior base cloth is of a three-layer structure, wherein the upper layer and the lower layer are polyester fiber layers, and the middle layer is a polyester fiber woven cloth layer.
Description of terms:
pressure unit: the pressure units are expressed in kg, namely kilogram force, which is a common unit of force, and the international unit of force is Newton. A force of 1 kilogram refers to the gravitational force (i.e., 9.8N) experienced by a body of 1 kilogram, so that 1 kilogram force is 9.8 newtons.
The technical scheme of the invention is as follows:
a preparation method of environment-friendly automotive interior base cloth comprises the following steps:
(1) dispersing polyester fibers with the fineness of 0.2-0.6 dtex into deionized water, adding a softening agent, and uniformly stirring to obtain a polyester fiber solution;
(2) passing the polyester fiber solution through a three-layer composite former to prepare two polyester fiber layers, and pre-spunlacing the two polyester fiber layers to compound the upper and lower polyester fiber layers with a polyester fiber base fabric to ensure that the polyester fiber base fabric is in the middle and the two sides of the polyester fiber base fabric are the polyester fiber layers to obtain three-layer composite leather base fabric;
(3) and (3) fixing the three-layer composite leather base cloth by common spunlace, fully interweaving the three-layer composite leather base cloth to form high-strength base cloth after high-pressure swinging spunlace, squeezing dehydration and vacuum water absorption, and drying to obtain the environment-friendly automotive interior base cloth.
According to the present invention, it is preferable that the fineness of the polyester fiber in the step (1) is 0.3 to 0.4dtex, and the fiber length is 3 to 7 m.
According to the invention, the mass ratio of the polyester fiber to the deionized water in the step (1) is preferably 1: (45-55).
According to the invention, preferably, the addition amount of the softening agent in the step (1) is three to five thousandths of the mass of the deionized water.
According to the present invention, it is preferable that the base fabric of polyester fiber in step (2) is a woven base fabric of polyester fiber.
Preferably, the gram weight of the polyester fiber woven base fabric is 40-100 g/m2；
Preferably, the thickness of the polyester fiber woven base fabric is 0.2-0.5 mm.
According to the present invention, it is preferable that the pressure of the pre-hydroentangling in the step (2) is 15 to 25 kg.
According to the present invention, it is preferable that the pressure of the fixed normal spunlace in the step (3) is 35 to 45 kg.
According to the invention, preferably, the high-pressure swing spunlace in the step (3) is gradually pressurized, the initial pressure of the gradual pressurization is 45-55 kg, and the ending pressure is 110-120 kg.
The present invention has been described in detail and is generally practiced in the art.
The invention has the technical characteristics that:
the environment-friendly automotive interior base fabric is manufactured by using superfine ultrashort polyester fiber PET and a water-needling compounding method under the condition of not carrying out any chemical treatment, is suitable for the automotive interior fabric impregnated or coated by water-based PU, and is colorless, tasteless and environment-friendly. Therefore, the processed product is completely environment-friendly and is suitable for being used as a material for producing automotive interior trim. And in the preparation process, high-pressure swing spunlace is adopted for compounding, the initial pressure of the step-by-step pressurization is 45-55 kg in the process of the high-pressure swing spunlace, the ending pressure is 110-120 kg, the pressure is uniform and proper, the delamination when the water pressure is too small is effectively avoided, the density is low, the tearing strength is low when the pressure is too large, the base fabric structure is damaged by large pressure, and the water needle circularly swings in the spunlace process, so that the surface water needle marks of the environment-friendly automotive interior base fabric prepared by the method are eliminated, and the environment-friendly automotive interior base fabric prepared by the method is smoother and has better hand feeling after the softener is added.
The invention has the following beneficial effects:
1. the raw material adopted in the invention is ultra-short polyester fiber, and can be dispersed uniformly without adding a dispersant in the using process; meanwhile, the length of the selected polyester fiber is 3-7 mm, the titer is 0.3-0.4 dtex, if the fiber is too short, the titer is too small, the fiber is easy to run off and fall, the cost is high, and the subsequent forming is difficult; too long fiber, too large fineness, difficult dispersion and poor uniformity of finished products.
2. The invention adopts a swing type spunlace machine to carry out high-pressure spunlace, and the high-pressure spunlace process is carried out step by stepPressurizing, wherein the initial pressure of gradual pressurizing is 45-55 kg, the ending pressure is 110-120 kg, the pressure is uniform and appropriate, the hydro-needling is circularly swung in the spunlace process, the prepared automotive interior base fabric eliminates the water needle lines on the surface of the product, the product is not fluffy and is not layered, and meanwhile, after a softening agent is added, the fabric surface is smooth and neat, the hand feeling is soft and fine, and the density of the finally prepared environment-friendly automotive interior base fabric reaches 0.35-80 g/cm2The gram weight is 120-300 g/m2And is suitable for being used as a material for producing automotive interior.
3. The preparation method disclosed by the invention has the advantages that no organic solvent is used in the process of preparing the environment-friendly automotive interior base cloth, no pollution is generated, the environment is completely protected, the steps of the preparation method are simple, the upper former and the lower former are replaced by the three-layer composite former, the forming is easier, the whole process is shortened, the prepared environment-friendly automotive interior base cloth is easy to dry, the yield is high, animal leather can be replaced, and the preparation method is attractive, economical and practical and wide in application.
Drawings
Fig. 1 is a structural view of an environmentally friendly interior base fabric of an automobile prepared in example 1.
Fig. 2 is a schematic view of a fiber structure of the eco-friendly automotive interior base fabric prepared in example 1.
Fig. 3 is a schematic view of a fiber structure of the eco-friendly automotive interior base fabric prepared in comparative example 2.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following specific examples.
Example 1
A preparation method of environment-friendly automotive interior base cloth comprises the following steps:
(1) dispersing superfine and ultrashort polyester fibers with the fineness of 0.3dtex and the fiber length of 5mm into deionized water, adding a softener with the mass of three thousandth of that of the deionized water, and uniformly stirring to obtain a polyester fiber solution;
(2) preparing a polyester fiber woven base fabric on an unreeling frame, wherein the gram weight of the base fabric is 40g/m20.3mm in thickness for standby;
enabling the polyester fiber solution in the step (1) to pass through a three-layer composite former to prepare two polyester fiber layers, and enabling the upper polyester fiber layer and the lower polyester fiber layer to be compounded with polyester fiber base fabric through 15kg of pre-spunlace; the polyester fiber base cloth is arranged in the middle, and two sides of the polyester fiber base cloth are provided with polyester fiber layers to form three-layer composite leather base cloth;
(3) and (2) firstly fixing the three-layer composite leather base cloth by 35kg of common spunlace for reinforcement, then carrying out high-pressure swing spunlace reinforcement by using a swing spunlace machine to eliminate water needle lines, gradually pressurizing the high-pressure swing spunlace, wherein the initial pressure of the gradual pressurization is 45kg, the final pressure is 110kg, and after squeezing, dewatering and vacuum water absorption, entering hot air drying for primary drying, drying in a drying cylinder, rolling and finally slitting to obtain the environment-friendly automotive interior base cloth.
The structure of the environment-friendly automotive interior base fabric prepared in the embodiment is shown in fig. 1 and is divided into three layers, the polyester fiber woven base fabric is arranged in the middle, the two sides of the polyester fiber woven base fabric are polyester fiber layers, and the fiber structure is shown in fig. 2.
Example 2
A preparation method of environment-friendly automotive interior base cloth comprises the following steps:
(1) dispersing superfine and ultrashort polyester fibers with the fineness of 0.35dtex and the fiber length of 6mm into deionized water, adding a softener with the mass of four thousandth of that of the deionized water into the deionized water, and uniformly stirring to obtain a polyester fiber solution;
(2) preparing polyester fiber woven base fabric on an unreeling frame, wherein the gram weight of the base fabric is 70g/m20.4mm in thickness for standby;
enabling the polyester fiber solution in the step (1) to pass through a three-layer composite former to prepare two polyester fiber layers, and enabling the upper polyester fiber layer and the lower polyester fiber layer to be compounded with polyester fiber base fabric through 20kg of pre-spunlace; the polyester fiber base cloth is arranged in the middle, and two sides of the polyester fiber base cloth are provided with polyester fiber layers to form three-layer composite leather base cloth;
(3) the three-layer composite leather base cloth is firstly fixed by 40kg through common spunlace and reinforced, then high-pressure swinging spunlace reinforcement is carried out by using a swinging spunlace machine to eliminate water needle lines, the high-pressure swinging spunlace is gradually pressurized, the initial pressure of the gradual pressurization is 50kg, the ending pressure is 115kg, after squeezing dehydration and vacuum water absorption, the three-layer composite leather base cloth enters hot air drying and primary drying, is sent to a drying cylinder for drying, is rolled and is finally cut, and the environment-friendly automotive interior base cloth is obtained.
Example 3
A preparation method of environment-friendly automotive interior base cloth comprises the following steps:
(1) dispersing superfine and ultrashort polyester fibers with the fineness of 0.4dtex and the fiber length of 7mm into deionized water, adding a softener with the mass of three thousandth of that of the deionized water, and uniformly stirring to obtain a polyester fiber solution;
(2) preparing polyester fiber woven base fabric on an unreeling frame, wherein the gram weight of the base fabric is 100g/m20.5mm in thickness for standby;
enabling the polyester fiber solution in the step (1) to pass through a three-layer composite former to prepare two polyester fiber layers, and enabling the upper polyester fiber layer and the lower polyester fiber layer to be compounded with polyester fiber base fabric through 25kg of pre-spunlace; the polyester fiber base cloth is arranged in the middle, and two sides of the polyester fiber base cloth are provided with polyester fiber layers to form three-layer composite leather base cloth;
(3) the three-layer composite leather base cloth is firstly fixed by 55kg through common spunlace and reinforced, then high-pressure swing spunlace reinforcement is carried out by using a swing spunlace machine to eliminate water needle lines, the high-pressure swing spunlace is gradually pressurized, the initial pressure of the gradual pressurization is 55kg, the ending pressure is 120kg, after squeezing dehydration and vacuum water absorption, the three-layer composite leather base cloth enters hot air drying and primary drying, is sent to a drying cylinder for drying, is rolled and is finally cut, and the environment-friendly automotive interior base cloth is obtained.
Comparative example 1
As described in example 1, except that:
the length of the polyester fiber in the step (1) is 0.5 mm.
Comparative example 2
As described in example 1, except that:
the length of the polyester fiber in the step (1) is 12 mm.
The structure of the fiber of the environment-friendly automotive interior fabric prepared by the comparative example is shown in fig. 3.
Comparative example 3
As described in example 1, except that:
in the step (3), the initial pressure of the high-pressure swing spunlace step-by-step pressurization is 20kg, and the final pressure is 100 kg.
Comparative example 4
As described in example 1, except that:
in the step (3), the initial pressure of the high-pressure swing spunlace step-by-step pressurization is 100kg, and the final pressure is 200 kg.
Comparative example 5
As described in example 1, except that:
in the step (3), fixed common spunlace with the pressure of 100kg is adopted.
Compared with the comparative example 2, the polyester fiber with the length of 5mm and the fineness of 0.3dtex is used in the embodiment 1, so that the environment-friendly automotive interior base fabric prepared in the embodiment 1 has the advantages of thinner fiber structure, good evenness, easiness in forming, no fluffing, no layering, smooth and tidy cloth surface and soft and fine hand feeling.
Test example 1
The properties of the eco-friendly interior base fabrics prepared in examples 1 to 3 and comparative examples 1 to 5 were tested, and the results are shown in table 1.
TABLE 1
| Item/number | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 |
| Gram weight (g/square meter) | 140 | 220 | 280 | 100 | 120 | 100 | 100 | 130 |
| Transverse rupture strength N | 580 | 690 | 750 | 265 | 350 | 310 | 360 | 200 |
| Longitudinal breaking strength N | 600 | 700 | 780 | 288 | 345 | 312 | 370 | 210 |
| Transverse tear Strength N | 25 | 31 | 35 | 20 | 24 | 19 | 20 | 20 |
| Longitudinal tear strength N | 24 | 27 | 31 | 16 | 22 | 13 | 15 | 14 |
| Uniformity | Superior food | Good wine | Good wine | Difference (D) | Difference (D) | Good wine | Good wine | Difference (D) |
| Easy and difficult to form | Easy to use | Easy to use | Is easier to be | Difficulty in | Is difficult to | Is easier to be | Is easier to be | Difficulty in |
| Delamination of | Without delaminating | Without delaminating | Without delaminating | Delamination of | Delamination of | Delamination of | Delamination of | Delamination of |
As can be seen from the comparison of the performance indexes of examples 1-3 and comparative examples 1-2 in Table 1, the overlong or overlong polyester fiber results in a smaller gram weight of the finished product, lower breaking strength and tearing strength, poor uniformity, difficult forming and easy delamination. As can be seen from the comparison of the performance indexes of examples 1-3 and comparative examples 3-4, the low high-pressure swing spunlace pressure can result in the product with low gram weight and low breaking strength and tearing strength, and although the uniformity is good and the forming is easy, the product is easy to delaminate; and the high-pressure swing hydro-entangled pressure is too high, so that the finished product has low breaking strength and tearing strength, and is easy to delaminate although the uniformity is good and the forming is easy. As can be seen from the comparison of the performance indexes of examples 1 to 3 and comparative example 5, the environment-friendly interior base fabric for automobiles, which was prepared by using the fixed ordinary spunlace, was qualified only in terms of gram weight, and other breaking strengths were not qualified as well as tear strength and uniformity, and were poor in uniformity, difficult to mold, and delaminated.
Claims (9)
1. A preparation method of environment-friendly automotive interior base cloth comprises the following steps:
(1) dispersing polyester fibers with the fineness of 0.2-0.6 dtex into deionized water, adding a softening agent, and uniformly stirring to obtain a polyester fiber solution;
(2) passing the polyester fiber solution through a three-layer composite former to prepare two polyester fiber layers, and pre-spunlacing the two polyester fiber layers to compound the upper and lower polyester fiber layers with a polyester fiber base fabric to ensure that the polyester fiber base fabric is in the middle and the two sides of the polyester fiber base fabric are the polyester fiber layers to obtain three-layer composite leather base fabric;
(3) and (3) fixing the three-layer composite leather base cloth by common spunlace, fully interweaving the three-layer composite leather base cloth to form high-strength base cloth after high-pressure swinging spunlace, squeezing dehydration and vacuum water absorption, and drying to obtain the environment-friendly automotive interior base cloth.
2. The method for preparing environment-friendly automotive interior base fabric according to claim 1, wherein the fineness of the polyester fiber in the step (1) is 0.3 to 0.4dtex, and the fiber length is 3 to 7 mm.
3. The method for preparing environment-friendly automotive interior base fabric according to claim 1, wherein the mass ratio of the polyester fiber to the deionized water in the step (1) is 1: (45-55).
4. The method for preparing the environmentally friendly automotive interior base fabric according to claim 1, wherein the softening agent is added in the step (1) in an amount of three to five per thousand based on the mass of the deionized water.
5. The method for preparing environmentally friendly automotive interior base fabric according to claim 1, wherein the polyester fiber base fabric in the step (2) is a polyester fiber woven base fabric.
6. The method for preparing environment-friendly automotive interior base fabric as claimed in claim 5, wherein the gram weight of the polyester fiber woven base fabric is 40-100 g/m2The thickness of the base fabric woven by the polyester fiber is 0.2-0.5 mm.
7. The method for preparing the environmentally friendly automotive interior base fabric as claimed in claim 1, wherein the pressure of the pre-hydroentangling in the step (2) is 15 to 25 kg.
8. The method for preparing the environmentally friendly automotive interior base fabric as claimed in claim 1, wherein the pressure for fixing the normal spunlace in the step (3) is 35 to 45 kg.
9. The method for preparing the environmentally friendly automotive interior base fabric as claimed in claim 1, wherein the high-pressure swing spunlace in the step (3) is gradually pressurized, the initial pressure of the gradual pressurization is 45-55 kg, and the ending pressure is 110-120 kg.
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| CN115559129A (en) * | 2022-10-10 | 2023-01-03 | 山东竞泰鸿技术服务有限公司 | Preparation method of environment-friendly artificial leather |
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