CN105015076B - A kind of wet manufacturing process of water proof nonwoven cloth roof liner - Google Patents
A kind of wet manufacturing process of water proof nonwoven cloth roof liner Download PDFInfo
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- CN105015076B CN105015076B CN201510444991.7A CN201510444991A CN105015076B CN 105015076 B CN105015076 B CN 105015076B CN 201510444991 A CN201510444991 A CN 201510444991A CN 105015076 B CN105015076 B CN 105015076B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000004744 fabric Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000003292 glue Substances 0.000 claims abstract description 78
- 238000005507 spraying Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000011265 semifinished product Substances 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000007493 shaping process Methods 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 238000010030 laminating Methods 0.000 claims abstract description 16
- 239000000047 product Substances 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims description 29
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 10
- 239000008213 purified water Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 238000009747 press moulding Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000007665 sagging Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 6
- 230000035943 smell Effects 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
- B32B17/10045—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets with at least one intermediate layer consisting of a glass sheet
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
- B32B37/1284—Application of adhesive
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- 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
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
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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
- 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
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- 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
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
Abstract
The wet manufacturing process of the present invention a kind of water proof nonwoven cloth roof liner, belongs to technical field of automotive upholstery.It comprises the steps: PU plastic roll, spray soften water, combination of materials, base material is hot-forming, base material semi-finished product cooling and shaping, base material glue spraying are dried, fabric laminating, cooling and shaping, high pressure waterjet and adnexa group are vertical.The automobile roof liner that the present invention produces greatly reduces roof liner weight; meet the requirement of automotive light weight technology design; product rigidity is good; the product of nearly 3 meters will not fracture, sagging; whole production process does not has harmful substance to produce; client can be met well and use requirement, meet the requirement of Hyundai Motor lightweight, environmental protection.
Description
Technical field
The wet manufacturing process of the present invention a kind of water proof nonwoven cloth roof liner, specifically one is for automobile top, plays the production technology of the low VOC wet method automobile roof liner of heat insulation, sound insulation and beautification function, belongs to technical field of automotive upholstery.
Background technology
Automobile roof liner is installed on automobile top, has decoration, sound insulation, the feature such as heat insulation, is increasingly pursuing high-performance, environment-friendly type, lightweight, the energy-saving epoch, automotive trim becomes people as car conour and selects a key factor of car, and therefore the requirement to automotive upholstery is more and more higher.In the prior art, the performance indications such as the high sound-absorbing of roof liner, low grammes per square metre, high intensity, low VOC become bottleneck, govern development originally.Existing roof liner generally uses compound PU sheet material straight forming.This kind of moulding process is primarily present problems with: 1, sound-absorbing index does not reaches requirement；2, product rigidity is poor, the most sagging, easy to break；3, product weight is big, is unfavorable for car load lightweight, energy-conservation；4, VOC (VOC) is defective cannot meet main engine plants' technology requirement.The present invention utilizes new wet processing to produce automobile roof liner, preferably resolves the problems referred to above.
Summary of the invention
It is an object of the invention to overcome above-mentioned weak point, it is provided that a kind of sound absorption qualities is good, rigidity is big, be difficult to sagging jackknifing; light weight, the manufacturing process of automobile roof liner of low VOC; this process non-volatility organic compound produces, recyclable, meets the requirement of Hyundai Motor environmental protection.
The technical scheme provided according to the present invention, the wet manufacturing process of a kind of water proof nonwoven cloth roof liner, step is as follows:
(1) plastic roll: take PU sheet material feeding glue spreader and carry out plastic roll, heating, obtain PU sheet material；Rolling motor frequency is 20-40Hz, glue spreader up-down roller gap 5.0-5.5mm, glue spreader bowl temperature 40-50 DEG C, and PU base material upper and lower surface each one side plastic roll amount is at 35-45 g/m2；
(2) softening water is sprayed: the PU sheet material spray purified water machine that step (1) has been rolled glue uniformly sprays pure water；Electric machine frequency: 40-60Hz, the amount of purified water of sprinkling is 25-35g/m2；
(3) material-paving: by transfer matic lay material, the superiors' table cloth is water proof nonwoven cloth, and the second layer is Chopped Strand Mat, and third layer is that step (2) is sprayed and softened the PU sheet material of gained after water, and the 4th layer is Chopped Strand Mat, bottom lay non-woven fabrics；
(4) hot-forming: it is compressing that mould sent into by material step (3) completed, press-moulding die temperature: 120-130 DEG C, briquetting pressure 8-10MPa, molding time: 40-50s obtains molding semi product；
(5) cooling and shaping: step (4) gained molding semi product is carried out vac sorb cooling and shaping, cool time is 40-50s, and vacuum is 0.5-0.8MPa；
(6) base material glue spraying is dried: being placed by step (5) gained base material on glue spraying tool and position, pallet carries out glue spraying operation in being sent to glue spraying room, obtains spraying semi-finished product, glue spraying air pressure 0.2-0.4MPa；Spraying semi-finished product are hung to drying shed hook, carries out dried, obtain glue spraying and be dried semi-finished product；Baking temperature is 70-80 DEG C, and transmission frequency is F1.90-F2.0；
(7) fabric laminating: step (6) gained glue spraying is dried semi-finished product and is placed in mould well with fabric lay and fits, mold temperature 65-75 DEG C during laminating, laminate pressure 8-10MPa, laminating time 45-55s；
(8) cooling and shaping: the semi-finished product that step (7) posts fabric are cooled to room temperature sizing；
(9) high pressure waterjet: the semi-finished product after step (8) cooling and shaping are carried out high pressure waterjet, cutting hydraulic pressure is 40000-50000psi, and cutting air pressure is 0.6-0.8MPa；
(10) adnexa group is stood: semi-finished product good for step (9) gained Water Cutting are installed adnexa, and get product water proof nonwoven cloth roof liner, vanning warehouse-in after inspection.
Described in step (3), water proof nonwoven cloth density is 50-80g/m2；Chopped Strand Mat density is 120-150g/m2。
Step (1) described plastic roll glue is polyurethane glue.
The glue that step (6) described glue spraying uses is environment-friendly water-based glue.
The fabric that step (7) is fitted is that two layers of warp knit composite material, i.e. warp knit monomer fabric are combined one layer of soft bubble of PU.
Beneficial effects of the present invention: compared with the prior art the present invention has the advantage that the automobile roof liner that the present invention produces greatly reduces roof liner weight; meet the requirement of automotive light weight technology design; product rigidity is good; the product of nearly 3 meters will not fracture, sagging; whole production process does not has harmful substance to produce; client can be met well and use requirement, meet the requirement of Hyundai Motor lightweight, environmental protection.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further detailed.
In following example, PU sheet material is purchased from lucky emerging wooden bridge, and plastic roll is with glue purchased from BASF, and glue spraying is with glue purchased from Fuller, and two layers of warp knit composite material are purchased from Wal, Ruian.
Embodiment 1
(1) plastic roll: take PU sheet material feeding glue spreader and carry out plastic roll, heating；Rolling motor frequency 20Hz, glue spreader up-down roller gap 5.0mm, glue spreader bowl temperature 40 DEG C, PU sheet material upper and lower surface each one side plastic roll amount is at 35 g/m2, the rigidity effect of roof liner is played by PU gluing；
(2) spray softening water: the PU sheet material of glue will have been rolled, uniformly spray pure water with spray purified water machine；Electric machine frequency: 40Hz, the amount of purified water of sprinkling is 25g/m2；
(3) material-paving: by transfer matic lay material, the superiors' table cloth is water proof nonwoven cloth, and the second layer is Chopped Strand Mat, and third layer is PU sheet material, and the 4th layer is Chopped Strand Mat, bottom lay common non-woven fabric；
(4) hot-forming: material good for above-mentioned lay to be sent into mould compressing, press-moulding die temperature: 120 DEG C, briquetting pressure 8MPa, molding time: 40s, the compressing semi-finished product of system；Make the substrate forming of roof liner after compacting by heating mould, after fully being reacted by glue, meet the requirement of automotive trim abnormal smells from the patient simultaneously；
(5) cooling and shaping: the semi-finished product after compressing for step (4) are carried out vac sorb cooling and shaping, cool time 40s, vacuum: 0.5MPa；
(6) base material glue spraying is dried: being placed by base material and position on glue spraying tool, pallet carries out glue spraying operation, glue spraying air pressure 0.2MPa in being sent to glue spraying room；Spraying semi-finished product are hung to drying shed hook, carries out dried, baking temperature: 70 DEG C, transmission frequency: F1.90；
(7) fabric laminating: glue spraying is dried the combination of semi-finished product and fabric and is placed in mould and fits, mold temperature 65 DEG C during laminating, laminate pressure 8MPa, laminating time 45s；
(8) cooling and shaping: the semi-finished product posting fabric are cooled to room temperature so that it is sizing, sizing is considered the assembling of car load, is met the matching requirements of roof liner size by cooling and shaping, and part is unlikely to deform.
(9) high pressure waterjet: will carry out high pressure waterjet through step semi-finished product (8), cutting hydraulic pressure control controls at 0.6MPa at 40000psi, cutting air pressure；
(10) adnexa group is stood: the semi-finished product that Water Cutting is good are installed adnexa and is finished product, vanning warehouse-in after inspection.
In described step (6) glue spraying glue be water-base cement, i.e. solvent be water, by with air reaction evaporation of solvent water, fully meet abnormal smells from the patient and VOC requirement, unharmful substance.
In described step (6), the readily permeable common non-woven fabric of water-base cement characteristic, is sprayed on water proof nonwoven cloth and will not form suction glue, with fabric firm pasting.
Embodiment 2
(1) plastic roll: take PU feeding glue spreader and carry out plastic roll, heating；Rolling motor frequency 30Hz, glue spreader up-down roller gap 5.25mm, glue spreader bowl temperature 45 DEG C, PU base material upper and lower surface each one side plastic roll amount is at 40 g/m2, the rigidity effect of roof liner is played by PU gluing；
(2) spray softening water: the PU foam of glue will have been rolled, uniformly spray pure water with spray purified water machine；Electric machine frequency: 50Hz, the amount of purified water of sprinkling is 30g/m2；
(3) material-paving: by transfer matic lay material, the superiors' table cloth is water proof nonwoven cloth, and the second layer is Chopped Strand Mat, and third layer is PU base material, and the 4th layer is Chopped Strand Mat, bottom lay common non-woven fabric；
(4) hot-forming: material good for above-mentioned lay to be sent into mould compressing, press-moulding die temperature: 125 DEG C, briquetting pressure 9MPa, molding time: 45s, the compressing semi-finished product of system；Make the substrate forming of roof liner after compacting by heating mould, after fully being reacted by glue, meet the requirement of automotive trim abnormal smells from the patient simultaneously；
(5) cooling and shaping: the semi-finished product after compressing are carried out vac sorb cooling and shaping, cool time 45s, vacuum: 0.5MPa；
(6) base material glue spraying is dried: being placed by base material and position on glue spraying tool, pallet carries out glue spraying operation, glue spraying air pressure 0.3MPa in being sent to glue spraying room；Spraying semi-finished product are hung to drying shed hook, carries out dried, baking temperature: 75 DEG C, transmission frequency: F1.95；
(7) fabric laminating: glue spraying is dried the combination of semi-finished product and fabric and is placed in mould and fits, mold temperature 70 DEG C during laminating, laminate pressure 9MPa, laminating time 50s；
(8) cooling and shaping: the semi-finished product posting fabric are cooled to room temperature so that it is sizing, sizing is considered the assembling of car load, is met the matching requirements of roof liner size by cooling and shaping, and part is unlikely to deform.
(9) high pressure waterjet: will carry out high pressure waterjet through step semi-finished product (8), cutting hydraulic pressure control controls at 0.7MPa at 45000psi, cutting air pressure；
(10) adnexa group is stood: the semi-finished product that Water Cutting is good are installed adnexa and is finished product, vanning warehouse-in after inspection.
In described step (6) glue spraying glue be water-base cement, i.e. solvent be water, by with air reaction evaporation of solvent water, fully meet abnormal smells from the patient and VOC requirement, unharmful substance.In described step (6), the readily permeable common non-woven fabric of water-base cement characteristic, is sprayed on water proof nonwoven cloth and will not form suction glue, with fabric firm pasting.
Embodiment 3
(1) plastic roll: take PU feeding glue spreader and carry out plastic roll, heating；Rolling motor frequency 40Hz, glue spreader up-down roller gap 5.5mm, glue spreader bowl temperature 50 DEG C, PU base material upper and lower surface each one side plastic roll amount is at 45g/m2, the rigidity effect of roof liner is played by PU gluing；
(2) spray softening water: the PU foam of glue will have been rolled, uniformly spray pure water with spray purified water machine；Electric machine frequency: 60Hz, the amount of purified water of sprinkling is 35g/m2；
(3) material-paving: by transfer matic lay material, the superiors' table cloth is water proof nonwoven cloth, and the second layer is Chopped Strand Mat, and third layer is PU base material, and the 4th layer is Chopped Strand Mat, bottom lay common non-woven fabric；
(4) hot-forming: material good for above-mentioned lay to be sent into mould compressing, press-moulding die temperature: 130 DEG C, briquetting pressure: 10MPa, molding time: 50s, the compressing semi-finished product of system；Make the substrate forming of roof liner after compacting by heating mould, after fully being reacted by glue, meet the requirement of automotive trim abnormal smells from the patient simultaneously；
(5) cooling and shaping: the semi-finished product after compressing are carried out vac sorb cooling and shaping, cool time 50s, vacuum: 0.5MPa；
(6) base material glue spraying is dried: being placed by step (5) gained base material on glue spraying tool and position, pallet carries out glue spraying operation, glue spraying air pressure 0.4MPa in being sent to glue spraying room；Spraying semi-finished product are hung to drying shed hook, carries out dried, baking temperature: 80 DEG C, transmission frequency: F2.0；
(7) fabric laminating: glue spraying is dried the combination of semi-finished product and fabric and is placed in mould and fits, mold temperature 75 DEG C during laminating, laminate pressure 10MPa, laminating time 55s；
(8) cooling and shaping: the semi-finished product posting fabric are cooled to room temperature so that it is sizing, sizing is considered the assembling of car load, is met the matching requirements of roof liner size by cooling and shaping, and part is unlikely to deform.
(9) high pressure waterjet: will carry out high pressure waterjet through step semi-finished product (8), cutting hydraulic pressure control controls at 0.8MPa at 50000psi, cutting air pressure；
(10) adnexa group is stood: the semi-finished product that Water Cutting is good are installed adnexa and is finished product, vanning warehouse-in after inspection.
In described step (6) glue spraying glue be water-base cement, i.e. solvent be water, by with air reaction evaporation of solvent water, fully meet abnormal smells from the patient and VOC requirement, unharmful substance.In described step (6), the readily permeable common non-woven fabric of water-base cement characteristic, is sprayed on water proof nonwoven cloth and will not form suction glue, with fabric firm pasting.
Claims (2)
1. a wet manufacturing process for water proof nonwoven cloth roof liner, is characterized in that step is as follows:
(1) plastic roll: take PU sheet material feeding glue spreader and carry out plastic roll, heating, obtain PU sheet material；Rolling motor frequency is 20-40Hz, glue spreader up-down roller gap 5.0-5.5mm, glue spreader bowl temperature 40-50 DEG C, and PU base material upper and lower surface each one side plastic roll amount is at 35-45 g/m2；
(2) softening water is sprayed: the PU sheet material spray purified water machine that step (1) has been rolled glue uniformly sprays pure water；Electric machine frequency: 40-60Hz, the amount of purified water of sprinkling is 25-35g/m2；
(3) material-paving: by transfer matic lay material, the superiors' table cloth is water proof nonwoven cloth, and the second layer is Chopped Strand Mat, and third layer is that step (2) is sprayed and softened the PU sheet material of gained after water, and the 4th layer is Chopped Strand Mat, bottom lay non-woven fabrics；
(4) hot-forming: it is compressing that mould sent into by material step (3) completed, press-moulding die temperature: 120-130 DEG C, briquetting pressure 8-10MPa, molding time: 40-50s obtains molding semi product；
(5) cooling and shaping: step (4) gained molding semi product is carried out vac sorb cooling and shaping, cool time is 40-50s, and vacuum is 0.5-0.8MPa；
(6) base material glue spraying is dried: being placed by step (5) gained base material on glue spraying tool and position, pallet carries out glue spraying operation in being sent to glue spraying room, obtains spraying semi-finished product, glue spraying air pressure 0.2-0.4MPa；Spraying semi-finished product are hung to drying shed hook, carries out dried, obtain glue spraying and be dried semi-finished product；Baking temperature is 70-80 DEG C, and transmission frequency is F1.90-F2.0；
(7) fabric laminating: step (6) gained glue spraying is dried semi-finished product and is placed in mould well with fabric lay and fits, mold temperature 65-75 DEG C during laminating, laminate pressure 8-10MPa, laminating time 45-55s；
(8) cooling and shaping: the semi-finished product that step (7) posts fabric are cooled to room temperature sizing；
(9) high pressure waterjet: the semi-finished product after step (8) cooling and shaping are carried out high pressure waterjet, cutting hydraulic pressure is 40000-50000psi, and cutting air pressure is 0.6-0.8MPa；
(10) adnexa group is stood: semi-finished product good for step (9) gained Water Cutting are installed adnexa, and get product water proof nonwoven cloth roof liner, vanning warehouse-in after inspection；
Step (1) described plastic roll glue is polyurethane glue；
The glue that step (6) described glue spraying uses is environment-friendly water-based glue；
The fabric that step (7) is fitted is that two layers of warp knit composite material, i.e. warp knit monomer fabric are combined one layer of soft bubble of PU.
2. the wet manufacturing process of water proof nonwoven cloth roof liner as claimed in claim 1, is characterized in that: described in step (3), water proof nonwoven cloth density is 50-80g/m2；Chopped Strand Mat density is 120-150g/m2。
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| CN101648548A (en) * | 2009-09-07 | 2010-02-17 | 无锡吉兴汽车声学部件科技有限公司 | Wet production process of low-density soft polyurethane foam top lining |
| CN101654059A (en) * | 2009-09-11 | 2010-02-24 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing roof sun visor of automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101648548A (en) * | 2009-09-07 | 2010-02-17 | 无锡吉兴汽车声学部件科技有限公司 | Wet production process of low-density soft polyurethane foam top lining |
| CN101654059A (en) * | 2009-09-11 | 2010-02-24 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing roof sun visor of automobile |
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