CN104694039B - A kind of two-sided film non-woven fabrics and preparation method thereof - Google Patents
A kind of two-sided film non-woven fabrics and preparation method thereof Download PDFInfo
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- CN104694039B CN104694039B CN201310653150.8A CN201310653150A CN104694039B CN 104694039 B CN104694039 B CN 104694039B CN 201310653150 A CN201310653150 A CN 201310653150A CN 104694039 B CN104694039 B CN 104694039B
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Abstract
The invention discloses a kind of two-sided film non-woven fabrics, including protective layer, nonwoven layer and adhesive linkage, described nonwoven layer is located between described protective layer and described tack coat.Described protective layer thickness is 0.02～0.10mm；The thickness of described nonwoven layer is 0.10～0.45mm；The thickness of described tack coat is 0.02～0.10mm.Two-sided film non-woven fabrics prepared by the present invention can select the surface layer of polypropylene or polyamide according to the requirement to hardness and wearability for the fiber glass reinforced polypropylene product surface, to improve hardness and the wearability of product surface.According to the requirement to color and weatherability for the fiber glass reinforced polypropylene product surface, color masterbatch and antioxidant can be added in surface layer, to improve product surface quality and serviceability；Preparation method is environment friendly and pollution-free.
Description
Technical field
The invention belongs to field of composite material preparation, it is related to one kind and is used for glass fiber reinforced polypropylene composite material surface
Two-sided film non-woven fabrics and preparation method thereof.
Background technology
Compared with thermoplastic resin, static strength can improve 2～3 times to thermoplastic resin based composite material, and resistance to vibration can
Improve 2～4 times, molding shrinkage can reduce by 1/2～1/4, water absorption rate declines 10% about；Thermoplastic resin based composite material with
Thermosetting resin based composites are compared with density is low, impact resistance strong, and endurance, black brittleness are little, can repair, produce
The advantages of journey non-environmental-pollution；Obtain increasing development based on above 2 points of thermoplastic resin based composite materials, but,
Occur in that many problems in thermoplastic resin based composite material evolution, wherein surface quality be need the difficult problem that solves it
One.Different from pure resin material, it is such that thermoplastic resin based composite material inside typically all with the addition of similar glass in a large number
Reinforcing material, makes the volume content of resin substantially reduce, even below 40% having, and causes material surface not smooth, and color
Inequality, depends merely on and adds the cosmetic issue that color masterbatch can not solve material；Thermoplas tic resin composite is different from glass steel again
Material, the polar bond that surface is contained is less, cohesive force relatively low it is impossible to apply gel coat, usually control content and its distribution of glass
When improving product appearance quality as far as possible, and to be directed to the higher composite of glass fiber content, how to improve product appearance matter
Amount does not also have good solution.
Content of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide a kind of two-sided film non-woven fabrics, environmental protection is no dirty
Dye.
It is a further object to provide a kind of preparation method of above-mentioned two-sided film non-woven fabrics.
To achieve these goals, the present invention employs the following technical solutions：
The invention provides a kind of two-sided film non-woven fabrics, including protective layer, nonwoven layer and adhesive linkage, described non-woven fabrics
Layer is located between described protective layer and described tack coat.
Described protective layer thickness is 0.02～0.10mm；The thickness of described nonwoven layer is 0.10～0.45mm；Described viscous
The thickness of knot layer is 0.02～0.10mm；
Described protective layer is made by including following components in percentage by weight：
Polypropylene or polyamide 6 86.8～94.2%,
Color masterbatch 5～12%,
Antioxidant 0.8～1.2%.
Described polypropylene or polyamide 6 are the polypropylene of film level or the polyamide 6 of film level.
Described color masterbatch is the organic pigment or inorganic pigment being exclusively used on polypropylene or polyamide 6.
Described color masterbatch includes polyethylene low-molecular-weight wax, titanium dioxide or white carbon black.
Described antioxidant is irgasfos 168 or antioxidant 1010.
Described nonwoven layer is spun-bonded polyester fibre non-woven fabrics, and non-woven fabrics unit grammes per square metre is 20～200g/m2.
Described tack coat is made by including following components in percentage by weight：
Polypropylene 98.8～99.2%,
Antioxidant 0.8～1.2%.
Described polypropylene is the polypropylene of film level.
Described antioxidant is irgasfos 168 or antioxidant 1010.
Present invention also offers a kind of preparation method of above-mentioned two-sided film non-woven fabrics, comprise the following steps：
Non-woven fabrics are placed on let off roll, by the first front guide roller, the second front guide roller, the 3rd front guide roller by nonwoven
Cloth introduces on the first die head of the first extruder, and the protective layer film coating film of extrusion is to nonwoven surface, and passes through first
After composite roll and first in composite roll and first in front composite roll and first, the pressurization between composite roll is combined, after being combined
Non-woven fabrics be cooled to 30～50 DEG C, simultaneously composite roll drive one side film non-woven fabrics continue to be moved along, and pass through first
Middle guide roller, guide roller in second, guide roller in the 3rd, guide roller enters on the second die head of the second extruder in the 4th, squeezes
The tack coat film coating film going out to non-woven fabrics another side, and by composite roll and second in composite roll and second before second
After middle composite roll and second, the pressurization between composite roll is combined, and the two-sided film non-woven fabrics after being combined are cooled to 30～50
DEG C, and pass through the first rear guide roller, the second rear guide roller, the 3rd rear guide roller, carry out trimming and winding is obtained two-sided film no
Spin cloth.
The preparation method of described protective layer film coating comprises the following steps：Percentage by weight is 86.8～94.2%
Polypropylene or color masterbatch that polyamide 6, percentage by weight are 5～12% and the antioxidant mixing that percentage by weight is 0.8～1.2% are stirred
Mix 2～5 minutes and make its mix homogeneously, the material of mix homogeneously passes through first charge door entrance the first extrusion of the first extruder
Machine, becomes the fluid of melting under the heating of the first extruder screw and shear action, is finally transported in the first die head
Type is extruded for thin film.
The preparation method of described tack coat film coating comprises the following steps：Percentage by weight is 98.8～99.2%
Polypropylene and the antioxidant mix and blend that percentage by weight is 0.8～1.2% make its mix homogeneously in 2～5 minutes, mix homogeneously
The second charge door that material passes through the second extruder enters the second extruder, in heating and the shear action of the second extruder screw
Under become the fluid of melting, be finally transported in the second die head and be shaped to thin film and extrude.
Described first extruder screw is 190～240 DEG C for polyacrylic heating-up temperature, for the heating of polyamide 6
Temperature is 200～250 DEG C, and the first die head is 230～250 DEG C for polyacrylic heating-up temperature, and the first die head is for polyamide 6
Heating-up temperature be 240～260 DEG C.
Described second extruder screw is 190～240 DEG C for polyacrylic heating-up temperature, and the second die head is for polypropylene
Heating-up temperature be 230～250 DEG C.
The walking speed of the whole technological process of preparation method of described two-sided film non-woven fabrics is 3～12m/min.
Compared with prior art, the invention has the advantages that and advantage：
1st, the two-sided film non-woven fabrics prepared by the present invention can according to fiber glass reinforced polypropylene product surface to hardness and
The surface layer of polypropylene or polyamide is selected in the requirement of wearability, to improve hardness and the wearability of product surface.
2nd, the two-sided film non-woven fabrics prepared by the present invention can according to fiber glass reinforced polypropylene product surface to color and
Color masterbatch and antioxidant are added in surface layer for the requirement of weatherability, to improve product surface quality and serviceability.
3rd, the two-sided film non-woven fabrics tack coat prepared by the present invention is polypropylene, with fiber glass reinforced polypropylene material matrix
Unanimously, fiber glass reinforced polypropylene material surface can be directly bonded to, environment friendly and pollution-free.
Brief description
The structural representation of the two-sided film non-woven fabrics that Fig. 1 provides for the present invention.
Fig. 2 is the flow chart of the preparation method of two-sided film non-woven fabrics shown in Fig. 1.
Wherein, 1 is protective layer, and 2 is nonwoven layer, and 3 is tack coat；4 is let off roll, and 51 is the first front guide roller, and 52 are
Second front guide roller, 53 is the 3rd front guide roller, and 6 is the first charge door, and 7 is the first extruder, and 8 is the first die head, and 91 is the
Composite roll before one, 92 is composite roll in first, and 93 is composite roll after first, and 101 is guide roller in first, and 102 is to lead in second
To roller, 103 is guide roller in the 3rd, and 104 is guide roller in the 4th, and 11 is the second charge door, and 12 is the second extruder, and 13 is the
Two die heads, 141 is composite roll before second, and 142 is composite roll in second, and 143 is composite roll after second, and 151 is guiding after first
Roller, 152 is the second rear guide roller, and 153 is the 3rd rear guide roller, and 16 is edge cutting machine, and 17 is wind-up roll.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of two-sided film non-woven fabrics, including three-decker, are followed successively by protective layer 1, nonwoven layer 2, bonding from top to bottom
Layer 3.Wherein protective layer 1 is made up of polypropylene, color masterbatch, antioxidant, and thickness is 0.02mm；Nonwoven layer 2 is spun-bonded polyester fibre nonwoven
Cloth, unit grammes per square metre is 20g/m2, and thickness is 0.10mm；Tack coat 3 is made up of polypropylene, antioxidant, and thickness is 0.02mm；Described
Nonwoven layer 2 is located between described protective layer 1 and described tack coat 3.
The preparation technology of two-sided film non-woven fabrics is as follows：
（1）Prepare protective layer 1 film coating
Protective layer 1 film coating weight percentage ratio proportioning：
Film grade polypropylene 94.2%
Polyethylene low-molecular-weight wax and the color masterbatch 5% of titanium dioxide composition
Irgasfos 168 0.8%
Make putting into mix and blend in agitator after membrane coating material is configured by above percentage by weight used by protective layer 1 within 2 minutes
Its mix homogeneously, the polypropylene miser of mix homogeneously enters the first extruder 7 by first charge door 6 of the first extruder 7,
Become the fluid of melting in the heating of the first extruder 7 screw rod and shear action, extruder screw design temperature is 190-240
DEG C, finally it is transported in the first die head 8 and becomes thin film and extrude, the first die head 8 design temperature is 230-250 DEG C；
（2）Prepare tack coat 3 film coating
Tack coat 3 film coating weight percentage ratio proportioning：
Film grade polypropylene 98.8%
Irgasfos 168 1.2%
Make putting into mix and blend in agitator after membrane coating material is configured by above percentage by weight used by tack coat 3 within 2 minutes
Its mix homogeneously, the polypropylene miser of mix homogeneously enters the second extruder by second charge door 11 of the second extruder 12
12, become the fluid of melting in the heating of the second extruder 12 screw rod and shear action, extruder screw design temperature is 190-
240 DEG C, finally it is transported in the second die head 13 and becomes thin film and extrude, the second die head 13 design temperature is 230-250 DEG C；
（3）Prepare two-sided film non-woven fabrics
Non-woven fabrics are placed on let off roll 4, by the first front guide roller 51, the second front guide roller 52, the 3rd front guide roller
53 by non-woven fabrics introduce the first extruder 7 the first die head 8 on, the protective layer 1 film coating film of extrusion to nonwoven surface,
And after composite roll 92 and first in composite roll 92 and first in composite roll 91 and first before passing through first between composite roll 93
Pressurization is combined, compound after non-woven fabrics be cooled to 30-50 DEG C, to drive the non-woven fabrics of one side film to continue past for composite roll simultaneously
Front movement, and pass through guide roller 104 in guide roller the 103, the 4th in guide roller the 102, the 3rd in guide roller 101, second in first
Enter on the second die head 13 of the second extruder 12, the tack coat 3 film coating film of extrusion is to non-woven fabrics another side, and passes through
Adding between composite roll 143 after composite roll 142 and second in composite roll 142 and second in composite roll 141 and second before second
Pressure is combined, and the two-sided film non-woven fabrics after being combined are cooled to 30-50 DEG C, and leads by after the first rear guide roller 151, second
Enter edge cutting machine 16 and winder 17 to roller 152, the 3rd rear guide roller 153；Two-sided film non-woven fabrics, whole technique are finally obtained
The walking speed of flow process is controlled to 3m/min.
Embodiment 2
A kind of two-sided film non-woven fabrics, including three-decker, are followed successively by protective layer 1, nonwoven layer 2, bonding from top to bottom
Layer 3.Wherein protective layer 1 is made up of polypropylene, color masterbatch, antioxidant, and thickness is 0.10mm；Nonwoven layer 2 is spun-bonded polyester fibre nonwoven
Cloth, unit grammes per square metre is 200g/m2, and thickness is 0.45mm；Tack coat 3 is made up of polypropylene, antioxidant, and thickness is 0.10mm；Institute
State nonwoven layer 2 to be located between described protective layer 1 and described tack coat 3.
The preparation technology of two-sided film non-woven fabrics is as follows：
（1）Prepare protective layer 1 film coating
Protective layer 1 film coating weight percentage ratio proportioning：
Film grade polypropylene 86.8%
Polyethylene low-molecular-weight wax and the color masterbatch 12% of titanium dioxide composition
Antioxidant 1010 1.2%
Make putting into mix and blend in agitator after membrane coating material is configured by above percentage by weight used by protective layer 1 within 5 minutes
Its mix homogeneously, the polypropylene miser of mix homogeneously enters the first extruder 7 by first charge door 6 of the first extruder 7,
Become the fluid of melting in the heating of the first extruder 7 screw rod and shear action, extruder screw design temperature is 190-240
DEG C, finally it is transported in the first die head 8 and becomes thin film and extrude, the first die head 8 design temperature is 230-250 DEG C；
（2）Prepare tack coat 3 film coating
Tack coat 3 film coating weight percentage ratio proportioning：
Film grade polypropylene 99.2%
Antioxidant 1010 0.8%
Make putting into mix and blend in agitator after membrane coating material is configured by above percentage by weight used by tack coat 3 within 5 minutes
Its mix homogeneously, the polypropylene miser of mix homogeneously enters the second extruder by second charge door 11 of the second extruder 12
12, become the fluid of melting in the heating of the second extruder 12 screw rod and shear action, extruder screw design temperature is 190-
240 DEG C, finally it is transported in the second die head 13 and becomes thin film and extrude, the second die head 13 design temperature is 230-250 DEG C；
（3）Prepare two-sided film non-woven fabrics
Non-woven fabrics are placed on let off roll 4, by the first front guide roller 51, the second front guide roller 52, the 3rd front guide roller
53 by non-woven fabrics introduce the first extruder 7 the first die head 8 on, the protective layer 1 film coating film of extrusion to nonwoven surface,
And after composite roll 92 and first in composite roll 92 and first in composite roll 91 and first before passing through first between composite roll 93
Pressurization is combined, compound after non-woven fabrics be cooled to 30-50 DEG C, to drive the non-woven fabrics of one side film to continue past for composite roll simultaneously
Front movement, and pass through guide roller 104 in guide roller the 103, the 4th in guide roller the 102, the 3rd in guide roller 101, second in first
Enter on the second die head 13 of the second extruder 12, the tack coat 3 film coating film of extrusion is to non-woven fabrics another side, and passes through
Adding between composite roll 143 after composite roll 142 and second in composite roll 142 and second in composite roll 141 and second before second
Pressure is combined, and the two-sided film non-woven fabrics after being combined are cooled to 30-50 DEG C, and leads by after the first rear guide roller 151, second
Enter edge cutting machine 16 and winder 17 to roller 152, the 3rd rear guide roller 153；Two-sided film non-woven fabrics, whole technique are finally obtained
The walking speed of flow process is controlled to 12m/min.
Embodiment 3
A kind of two-sided film non-woven fabrics, including three-decker, are followed successively by protective layer 1, nonwoven layer 2, bonding from top to bottom
Layer 3.Wherein protective layer 1 is made up of polyamide 6, color masterbatch, antioxidant, and thickness is 0.07mm；Nonwoven layer 2 is spun-bonded polyester fibre nonwoven
Cloth, unit grammes per square metre is 110g/m2, and thickness is 0.3mm；Tack coat 3 is made up of polypropylene, antioxidant, and thickness is 0.07mm；Described
Nonwoven layer 2 is located between described protective layer 1 and described tack coat 3.
The preparation technology of two-sided film non-woven fabrics is as follows：
（1）Prepare protective layer 1 film coating
Protective layer 1 film coating weight percentage ratio proportioning：
Film level polyamide 6 90%
Polyethylene low-molecular-weight wax and the color masterbatch 9% of white carbon black composition
Irgasfos 168 1%
Mix and blend 3.5 minutes in agitator will be put into after membrane coating material is configured by above percentage by weight used by protective layer 1
Make its mix homogeneously, the polyamide 6 mixture of mix homogeneously enters the first extrusion by first charge door 6 of the first extruder 7
Machine 7, becomes the fluid of melting in the heating of the first extruder 7 screw rod and shear action, and extruder screw design temperature is 200-
250 DEG C, finally it is transported in the first die head 8 and becomes thin film and extrude, the first die head 8 design temperature is 240-260 DEG C；
（2）Prepare tack coat 3 film coating
Tack coat 3 film coating weight percentage ratio proportioning：
Film grade polypropylene 99%；Irgasfos 168 1%.
Mix and blend 3.5 minutes in agitator will be put into after membrane coating material is configured by above percentage by weight used by tack coat 3
Make its mix homogeneously, the polypropylene miser of mix homogeneously enters the second extrusion by second charge door 11 of the second extruder 12
Machine 12, becomes the fluid of melting in the heating of the second extruder 12 screw rod and shear action, and extruder screw design temperature is
190-240 DEG C, finally it is transported in the second die head 13 and becomes thin film and extrude, the second die head 13 design temperature is 230-250
℃；
（3）Prepare two-sided film non-woven fabrics
Non-woven fabrics are placed on let off roll 4, by the first front guide roller 51, the second front guide roller 52, the 3rd front guide roller
53 by non-woven fabrics introduce the first extruder 7 the first die head 8 on, the protective layer 1 film coating film of extrusion to nonwoven surface,
And after composite roll 92 and first in composite roll 92 and first in composite roll 91 and first before passing through first between composite roll 93
Pressurization is combined, compound after non-woven fabrics be cooled to 30-50 DEG C, to drive the non-woven fabrics of one side film to continue past for composite roll simultaneously
Front movement, and pass through guide roller 104 in guide roller the 103, the 4th in guide roller the 102, the 3rd in guide roller 101, second in first
Enter on the second die head 13 of the second extruder 12, the tack coat 3 film coating film of extrusion is to non-woven fabrics another side, and passes through
Adding between composite roll 143 after composite roll 142 and second in composite roll 142 and second in composite roll 141 and second before second
Pressure is combined, and the two-sided film non-woven fabrics after being combined are cooled to 30-50 DEG C, and leads by after the first rear guide roller 151, second
Enter edge cutting machine 16 and winder 17 to roller 152, the 3rd rear guide roller 153；Two-sided film non-woven fabrics, whole technique are finally obtained
The walking speed of flow process is controlled to 8m/min.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply this
Bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to enforcement here
Example, according to the announcement of the present invention, the improvement made without departing from scope and modification all should be for those skilled in the art
Within protection scope of the present invention.
Claims (11)
1. a kind of two-sided film non-woven fabrics it is characterised in that：Including protective layer, nonwoven layer and tack coat, described nonwoven layer
Between described protective layer and described tack coat；
Described protective layer is made up of following components in percentage by weight：
Polypropylene or polyamide 6 86.8～94.2%,
Color masterbatch 5～12%,
Antioxidant 0.8～1.2%；
Described polypropylene or polyamide 6 are the polypropylene of film level or the polyamide 6 of film level；
Described nonwoven layer is spun-bonded polyester fibre non-woven fabrics, and non-woven fabrics unit grammes per square metre is 20～200g/m2；
Described tack coat is made up of following components in percentage by weight：
Polypropylene 98.8～99.2%,
Antioxidant 0.8～1.2%；
Described polypropylene is the polypropylene of film level.
2. two-sided film non-woven fabrics according to claim 1 it is characterised in that：Described protective layer thickness be 0.02～
0.10mm.
3. two-sided film non-woven fabrics according to claim 1 it is characterised in that：The thickness of described nonwoven layer be 0.10～
0.45mm.
4. two-sided film non-woven fabrics according to claim 1 it is characterised in that：The thickness of described tack coat be 0.02～
0.10mm.
5. two-sided film non-woven fabrics according to claim 1 it is characterised in that：Described color masterbatch is to be exclusively used in polypropylene or poly-
Organic pigment on amide 6 or inorganic pigment.
6. two-sided film non-woven fabrics according to claim 1 it is characterised in that：Described antioxidant is irgasfos 168 or anti-
Oxygen agent 1010.
7. two-sided film non-woven fabrics according to claim 1 it is characterised in that：Described color masterbatch includes polyethylene low molecule
Wax, titanium dioxide or white carbon black.
8. a kind of preparation method of described two-sided film non-woven fabrics as arbitrary in claim 1 to 7 it is characterised in that：Including with
Lower step：
Non-woven fabrics are placed on let off roll, by the first front guide roller, the second front guide roller, the 3rd front guide roller, non-woven fabrics are drawn
Enter on the first die head of the first extruder, the protective layer film coating film of extrusion to nonwoven surface, and by multiple before first
After closing composite roll and first in composite roll and first in roller and first, the pressurization between composite roll is combined, the nothing after being combined
Spin cloth and be cooled to 30～50 DEG C, composite roll drives the non-woven fabrics of one side film to continue to be moved along simultaneously, and pass through to lead in first
To in roller, second guide roller, guide roller in the 3rd, guide roller enters on the second die head of the second extruder in the 4th, extrusion
Tack coat film coating film to non-woven fabrics another side, and by multiple in composite roll and second in composite roll and second before second
After closing roller and second, the pressurization between composite roll is combined, and the two-sided film non-woven fabrics after being combined are cooled to 30～50 DEG C, and
By the first rear guide roller, the second rear guide roller, the 3rd rear guide roller, carry out trimming and winding is obtained two-sided film non-woven fabrics.
9. two-sided film non-woven fabrics according to claim 8 preparation method it is characterised in that：Described protective layer film applies
The preparation method of material comprises the following steps：By percentage by weight be 86.8～94.2% polypropylene or polyamide 6, weight percent
The antioxidant mix and blend being 0.8～1.2% than the color masterbatch for 5～12% and percentage by weight makes it mix all in 2～5 minutes
Even, the material of mix homogeneously passes through first charge door entrance the first extruder of the first extruder, in the first extruder screw
Become the fluid of melting under heating and shear action, be finally transported in the first die head and be shaped to thin film and extrude.
10. two-sided film non-woven fabrics according to claim 8 preparation method it is characterised in that：Described tack coat film
The preparation method of coating comprises the following steps：By percentage by weight be 98.8～99.2% polypropylene and percentage by weight be
0.8～1.2% antioxidant mix and blend makes its mix homogeneously for 2～5 minutes, and the material of mix homogeneously passes through the second extruder
Second charge door enters the second extruder, becomes the fluid of melting, under the heating of the second extruder screw and shear action
After be transported in the second die head and be shaped to thin film and extrude.
The preparation method of 11. two-sided film non-woven fabrics according to claim 8 or claim 9 it is characterised in that：Described first extrusion
Machine screw rod is 190～240 DEG C for polyacrylic heating-up temperature, and the heating-up temperature for polyamide 6 is 200～250 DEG C, first
Die head is 230～250 DEG C for polyacrylic heating-up temperature, and the first die head is 240～260 for the heating-up temperature of polyamide 6
℃；
Described second extruder screw is 190～240 DEG C for polyacrylic heating-up temperature, and the second die head adds for polyacrylic
Hot temperature is 230～250 DEG C；
The walking speed of the whole technological process of preparation method of described two-sided film non-woven fabrics is 3～12m/min.
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| CN107636229A (en) * | 2015-10-13 | 2018-01-26 | *** | Film machine and its film method |
| CN105252855B (en) * | 2015-11-05 | 2017-10-20 | 温州欧伟机械股份有限公司 | Nonwoven molding with cloth film equipment and the processing method for producing film non-woven fabrics |
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| CN110158325A (en) * | 2019-05-20 | 2019-08-23 | 宁波全泰环保科技有限公司 | A kind of the lamination equipment and its production technology of versatility production PVC adhesive plaster |
| CN110644248A (en) * | 2019-09-24 | 2020-01-03 | 南京德恒纸业有限公司 | Preparation process of laminated packaging material |
| CN114407316B (en) * | 2021-12-07 | 2023-02-28 | 南通纳科达聚氨酯科技有限公司 | Production device and method of gradual-change composite color-changing film with dynamic appearance |
| CN114261117A (en) * | 2021-12-21 | 2022-04-01 | 松本涂层科技（昆山）有限公司 | Non-woven fabric for preparing medical protective clothing and preparation method thereof |
| CN114434922B (en) * | 2022-03-01 | 2023-02-28 | 浙江盛纺纳米材料科技有限公司 | Laminating non-woven fabric and preparation method thereof |
| CN115873518A (en) * | 2022-11-25 | 2023-03-31 | 江苏晶华新材料科技有限公司 | Hot-melt cloth-based double-sided adhesive tape and preparation method thereof |
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| CN102837479A (en) * | 2012-08-24 | 2012-12-26 | 大连瑞光非织造布集团有限公司 | Anti-skid laminated non-woven fabric and preparation method thereof |
| CN202878769U (en) * | 2012-11-01 | 2013-04-17 | 温州大洲无纺布有限公司 | Medical non-woven fabric |
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| CN104694039A (en) | 2015-06-10 |
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