CN107374828A - A kind of perforate shaping cylinder mould and the method using its production film - Google Patents
A kind of perforate shaping cylinder mould and the method using its production film Download PDFInfo
- Publication number
- CN107374828A CN107374828A CN201710506741.0A CN201710506741A CN107374828A CN 107374828 A CN107374828 A CN 107374828A CN 201710506741 A CN201710506741 A CN 201710506741A CN 107374828 A CN107374828 A CN 107374828A
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- Prior art keywords
- cylinder mould
- casting films
- perforate
- aperture
- hole
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
- A61F13/5121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations characterised by the vertical shape of the apertures, e.g. three dimensional apertures, e.g. macro-apertures
- A61F13/5122—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations characterised by the vertical shape of the apertures, e.g. three dimensional apertures, e.g. macro-apertures and comprising secondary apertures, e.g. macro-apertures in combination with microapertures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
Abstract
The method of film is produced the invention discloses a kind of perforate shaping cylinder mould and using it, wherein the step of method of the production film includes：Polyolefin blend is flowed out to form casting films by screw extruder melting extrusion through T-shaped mould head, when the casting films of formation reach described perforate shaping cylinder mould, vacuum pump operation causes the air inside assembly drum to be sucked out, it is poor that the surfaces externally and internally of casting films forms external and internal pressure, casting films form the perforated film with infundibulate aperture, the pass of aperture is consistent with the pass of the through hole on a kind of described perforate shaping cylinder mould, the perforating needle of the cylinder mould of described perforate shaping simultaneously punctures casting films, and casting films form infundibulate macropore.After being molded cylinder mould and production method using above-mentioned perforate, casting films can form macropore and aperture simultaneously, eliminate winding device and unwinding equipment and transit link, have the advantages of reducing cost, improving production efficiency, prevent material secondary from polluting.
Description
Technical field
The present invention relates to perforated film production field, particularly relates to a kind of perforate shaping cylinder mould and produces film using it
Method.
Background technology
Perforated film is widely used in the surface layer of sanitary napkin and panty liner, that is, usually said liquid absorbing net face.But open
Hole film has the shortcomings of plastic sense, flexibility is not good enough, and infiltration rate is slow, in order to improve these shortcomings,
A kind of eyelet touch membrane structure is mentioned in CN200620057798.4, it is extended in oriented second face in the first face of film
Pore, the pore form the film angle of projection on the second face of film:Simultaneously to the first face shape on the face of film second
The micropore larger into perforated area, the second face of film use front when film is applied as with contact human skin.Just
It is that these film angle projections can make the reverse side of film form rough " matte " by the use of this " matte " as applied to health use
The front of product, the contact resilient of film product and skin can be increased, improve the comfortableness used, and aperture and macropore are simultaneously
Deposit, add infiltration rate.Application number：Also this kind of film is mentioned in CN200380101939.7 patents, and in order to keep small
Hole is not crushed when forming macropore, closure, so when macropore is formed using having heat-proof device to carry out protection aperture.But
Carried out at present using off-line secondary hole knockout, as shown in Figure 1 and Figure 2, casting films 1 are molded cylinder mould, cylinder mould branch through perforate first
Support cavity and vacuum pump group into vacuum punch device 1 ', it is thin that the perforate with small structure is formed in the presence of inside and outside differential pressure
Film 11, then winds.To have foraminate perforated film 11 to unreel using unwinding equipment, carried out through mechanical punching equipment 12 secondary
Punching, macropore is formed, the perforated film 2 with aperture and macropore is formed so as to wind.Why secondary hole knockout is used, it is main
If due to during machining small, it is necessary at high temperature vacuum inhale it is broken, the perforated film 2 after shaping shape it is relatively slow, it is necessary to
Longer process carries out solidifying and setting, could keep aperture fine hair not to be crushed during mechanical punching deformation, close, otherwise can
Influence the absorbability and sense of touch of perforated film.But this production method due to be secondary operation, it is necessary to form perforated film 11 after
First wind, after transporting mechanical punching former, then unreel, therefore energy consumption is larger, and material is easily caused in transportation
Material secondary pollution, waste of material are more.
The content of the invention
The defects of it is an object of the invention to overcome existing boring device, propose that one kind can form aperture and macropore knot simultaneously
The perforate shaping cylinder mould of the perforated film of structure and the method using its production perforated film.
In order to reach above-mentioned purpose, solution of the invention is：
A kind of perforate is molded cylinder mould, and it is cylindric metallic object, and its perisporium has several through holes, the outer surface of the perisporium
With several perforating needles, the thickness of the perisporium is 0.5mm ~ 1.2mm, and the through hole number is 20 ~ 1600/cm2, it is described
The area of single through hole is 0.03mm2~2.5mm2, the perforating needle number is 3 ~ 50/cm2, the single perforating needle bottom
Area is 0.4mm2~5mm2, and the area of single perforating needle bottom is at least more than 2 times of the area of single through hole.
Connected between the through hole is each by rib, the rib has the lines projection of outwardly convex or point-like convex
Rise.
The lines are raised or the height of dot bulge is 0.02mm ~ 0.2mm.
The outer surface of the perisporium has several elevated regions and sunk area.
The difference in height of the elevated regions and sunk area is 0.5mm ~ 2mm.
With having described through hole on sunk area on the elevated regions.
There is described perforating needle on the elevated regions.
The height of the perforating needle is 0.5mm ~ 5mm.
A kind of method for producing film, its step include：By polyolefin blend by screw extruder melting extrusion through T
Pattern head is flowed out to form casting films, and the above-mentioned perforate shaping cylinder mould of the casting films pile warp, described perforate shaping cylinder mould is fixed
On the assembly drum being connected with vavuum pump；The assembly drum has positioned at the suction mouth region of assembly drum side；Vavuum pump is transported
Exercise air inside assembly drum is sucked out, when casting films reach suction mouth region, the surfaces externally and internally of casting films
It is poor to form external and internal pressure, casting films form infundibulate aperture, the pass of aperture and the through hole on described perforate shaping cylinder mould
Aperture is consistent, while the perforating needle of described perforate shaping cylinder mould punctures casting films, and casting films form infundibulate macropore, so as to flow
Prolong film and form the perforated film with macropore and aperture.
The temperature of the porch casting films in the suction mouth region is 70 DEG C ~ 350 DEG C.
The vacuum of the assembly drum is 0.01MPa ~ 0.1MPa.
After being molded cylinder mould and production method using above-mentioned perforate, because casting films are the shapes after polyolefin blend melts
Into, when reaching suction mouth region, surface has certain temperature, and vavuum pump aspirates the air inside assembly drum
Out so that casting films form the hole with perforate shaping cylinder mould through hole in suction mouth region due to the effect of external and internal pressure difference
The consistent aperture of type.And casting films are in contact with the perforating needle on perforate shaping cylinder mould surface simultaneously, perforating needle is easy to have
The casting films for having certain temperature puncture, and form the opening direction macropore opposite with aperture so that the aperture and macropore of perforated film
Realize that Fast synchronization is molded on perforate shaping cylinder mould.The more secondary punching of this production method saves winding device and unwinding equipment
And transit link, saving energy consumption can be also played, reduces cost, improves production efficiency, the effect for preventing material secondary from polluting, and
Aperture and macropore are molded the extruding for reducing secondary winding to pass simultaneously, and the pass for effectively increasing aperture and macropore is kept,
Prevent pass from closing, so as to reduce due to the pass of aperture and macropore closure and caused by body fluid absorption speed it is slow, easily occur
Side leakage, the risk leaked afterwards.
Brief description of the drawings
Fig. 1 is production procedure Fig. 1 of traditional perforated film with aperture and macroporous structure；
Fig. 2 is production procedure Fig. 2 of traditional perforated film with aperture and macroporous structure；
Fig. 3 is the flow sheet of the embodiment of the present invention 1；
Fig. 4 is that the perforate of the embodiment of the present invention 1 is molded the partial enlarged drawing of cylinder mould；
Fig. 5 is the top view for the perforated film that the embodiment of the present invention 1 produces；
Fig. 6 is the profile for the perforated film that the embodiment of the present invention 1 produces；
Fig. 7 is the profile for the perforated film that the embodiment of the present invention 2 produces；
Fig. 8 is the flow sheet of the embodiment of the present invention 3；
Fig. 9 is that the perforate of the embodiment of the present invention 3 is molded the partial enlarged drawing of cylinder mould；
Figure 10 is the top view for the perforated film that the embodiment of the present invention 3 produces；
Figure 11 is the profile for the perforated film that the embodiment of the present invention 3 produces.
Embodiment
In order to which technical scheme is explained further, the present invention is explained in detail below by specific embodiment
State.
As shown in Fig. 3 to Figure 11, the present invention discloses a kind of perforate shaping cylinder mould A, and it is cylindric metallic object, its perisporium
With several through holes A1, the outer surface of the perisporium has several perforating needles A2, the thickness of the perisporium for 0.5mm ~
1.2mm, described A1 number of through hole are 20 ~ 1600/cm2, the area of the single through hole A1 is 0.03mm2~2.5mm2, it is described
A2 number of perforating needle is 3 ~ 50/cm2, the area of the single perforating needle A2 bottoms is 0.4mm2~5mm2, and single A2 is punched
The area of pin bottom is at least more than 2 times of the area of single through hole, and the height of the perforating needle is 0.5mm ~ 5mm..
Production stage using the method for perforate shaping cylinder mould A production films includes：Polyolefin blend is passed through
Screw extruder melting extrusion flows out to form casting films 1 through T-shaped mould head B, the perforate shaping cylinder mould described in the pile warp of casting films 1
A, described perforate shaping cylinder mould A are fixed on the assembly drum C being connected with vavuum pump；The assembly drum C, which has, is located at assembly drum
The suction mouth region C1 of side；Vacuum pump operation causes the air inside assembly drum C to be sucked out, when casting films 1 reach
During the C1 of suction mouth region, the surfaces externally and internally formation external and internal pressure of casting films 1 is poor, and casting films 1 form infundibulate aperture 21, aperture
The 21 pass perforate shaping cylinder mould A's consistent while described with the aperture of the through hole A1 on described perforate shaping cylinder mould A beats
Hole pin A2 punctures casting films 1, and casting films 1 form infundibulate macropore 22, so as to which casting films 1 are formed with macropore 22 and aperture 21
Perforated film 2.
Embodiment 1：
Coordinate shown in Fig. 3 to Fig. 6, be raw material using 45% LDPE 100AC, 45%LLDPE 7050 and 10% functional master batch, it is raw
During production, flow out to form casting films 1 through T-shaped mould head B by screw extruder melting extrusion.By perforate shaping cylinder mould A be fixed on
On the assembly drum C that vavuum pump is connected.The perforate shaping cylinder mould A is cylindric metallic object, and its perisporium is logical with several
Hole A1, its perisporium outer surface have several perforating needles A2；A1 number of through hole is 800/cm2, single through hole A1 area is
0.15mm2, A2 number of perforating needle is 25/cm2, the area of single perforating needle A2 bottoms is 2.5mm2, single perforating needle A2 height
Area for 2.5cm, and single perforating needle A2 bottoms is 16.67 times of single through hole A1 areas, perforating needle A2 by inlaying or
The mode of plug-in unit is fixed on perforate shaping cylinder mould A perisporium；Assembly drum C is a vacuum circular column type support cavity, and it is described into
There is the suction mouth region C1 positioned at assembly drum C sides on type drum C.In vacuum pump operation, the air quilt inside assembly drum C
Pump out, when the casting films 1 with certain temperature reach suction mouth region C1, the external and internal pressure difference of formation is by casting films
1 surface, which is inhaled, is broken into infundibulate aperture 21, while the perforating needle A2 on perforate shaping cylinder mould A surfaces punctures casting films 1, forms infundibulate
Macropore 22, so as to form the perforated film 2 with macropore 22 and aperture 21.Wherein：Suction mouth region C1 porch curtain coating
The temperature of film 1 is 70 ~ 350 DEG C, and preferably 200 DEG C, the vacuum of assembly drum is 0.01MPa ~ 0.1MPa, preferably 0.08MPa.
After being molded cylinder mould A and production method using above-mentioned perforate, casting films 1 have on surface when reaching suction mouth region
Certain temperature so that casting films 1 are easy to be formed and led to described due to the effect of external and internal pressure difference in suction mouth region
The consistent aperture 21 of hole A1 pass, and the perforating needle A2 on perforate shaping cylinder mould A surfaces is easy to certain temperature
Casting films 1 puncture, form the opening direction macropore 22 opposite with aperture 21 so that the macropore 22 and aperture 21 of perforated film 2
Realize that Fast synchronization is molded on perforate shaping cylinder mould A, reduce cost and energy consumption, improve production efficiency, prevent material two
Secondary pollution.Meanwhile macropore 22 and aperture 21 are molded the extruding for reducing secondary winding to the pass of aperture 21 simultaneously, effectively improve
The pass of aperture 21 and macropore 22 is kept, and prevents pass from closing, and is caused so as to reduce because aperture 21 and macropore 22 close
Body fluid absorption speed it is slow, the risk for side leakage easily occur, leaking afterwards.
Embodiment 2：
Embodiment 2 is further improved on the basis of implementing 1, the perforate of embodiment 2 shaping cylinder mould A through hole A1 it is each it
Between connected by rib, formed on the rib outwardly convex lines are raised or dot bulge, the lines are raised or point-like
Height of projection is 0.02mm ~ 0.2mm, therefore using the perforated film 2 of perforate shaping cylinder mould production, it is described shown in cooperation Fig. 7
Perforated film surface has funnel shaped a macropore 21 and aperture 21, and the opening direction of macropore 22 and aperture 21 is on the contrary, and small
The periphery in hole 21 has corresponding lines raised or the raised line 23 or salient point 23 of dot bulge.Because the periphery of aperture 21 is recessed
Convex not flat structure, can cause the diffusing reflection of light, and perforated film 2 can reduce modeling when applied to sanitary napkin or protection pad surface layer
Expect glossiness increase, reduce plastic sense, resentment of the consumer to plastics can be reduced to a certain extent.
Embodiment 3：
Coordinate shown in Fig. 8 to Figure 11, be raw material using 25% LDPE 100AC, 65%LLDPE 7050 and 10% functional master batch,
During production, flow out to form casting films 1 through T-shaped mould head B by screw extruder melting extrusion.Perforate shaping cylinder mould A is fixed on
On the assembly drum C being connected with vavuum pump, perforate shaping cylinder mould A described in the perforate shaping cylinder mould A is cylindric metallic object,
Its perisporium has several through holes A1, and its perisporium outer surface has several perforating needles A2；And perforate shaping cylinder mould A perisporium
Outer surface there is elevated regions A3 and sunk area A4, elevated regions A3 and sunk area A4 difference in height is 0.5mm ~ 2mm
Preferably 1mm.There is the through hole A1 with formed objects on sunk area A4, perforating needle A2 to be located at elevated regions on elevated regions A3
On A3, A1 number of through hole is 250/cm2, single through hole A1 area is 0.5mm2, A2 number of perforating needle is 50/cm2, it is single
The area of individual perforating needle A2 bottoms is 1.5mm2, single perforating needle A2 is highly 3.5cm, and the area of single perforating needle A2 bottoms
3 times of single through hole A1 areas, perforating needle A2 inlay or plug-in unit by way of be fixed on the convex area that perforate is molded cylinder mould A
On the A3 of domain；Assembly drum C is a vacuum circular column type support cavity, and has the vacuum positioned at assembly drum C sides on the assembly drum C
Suction inlet region C1.In vacuum pump operation, the air inside assembly drum C is sucked out, when the casting films with certain temperature
When reaching suction mouth region C1, the external and internal pressure difference of formation, which inhales the surface of casting films 1, is broken into infundibulate aperture 21, is cast simultaneously
Film 1 can be adsorbed in perforate shaping cylinder mould A surface, due to the elevated regions A3 and sunk area A3 on perforate shaping cylinder mould A surfaces
Presence, the casting films 1 with certain temperature can be fixed to concaveconvex structure after the cooling period, and perforate shaping cylinder mould A surfaces
Perforating needle A2 punctures casting films 1, forms infundibulate macropore 22, is opened so as to be formed with concaveconvex structure and macropore 22, aperture 21
Hole film 2, the macropore 21 are located on the recess 24 of the concaveconvex structure of perforated film 2.Wherein：Suction mouth region C1's enters
The temperature of casting films 1 is 70 ~ 350 DEG C at mouthful, and preferably 180 DEG C, assembly drum C vacuum is 0.01MPa ~ 0.1MPa, preferably
For 0.05MPa.
After being molded cylinder mould A and production method using above-mentioned perforate, because perforate shaping cylinder mould A surfaces have elevated regions A3
With sunk area A3 so that the casting films 1 with certain temperature can be fixed to concaveconvex structure after the cooling period, and in recess 24
It is upper that there is macropore 22.It is quick same that embodiment 3 not only realizes the realization on perforate shaping cylinder mould A of concaveconvex structure, macropore and aperture
Step production, reduces cost and energy consumption, improves production efficiency, prevent material secondary from polluting；Meanwhile perforated film 2 is applied to
When sanitary napkin or protection pad surface layer, the concaveconvex structure of perforated film 2 is advantageous to the osmotic absorption of body fluid and the storage of small clot, prevents
Small clot directly contacts with skin, improves dry and comfortable performance, and has macropore 22 on the recess 24 of perforated film 2, more
The occurrence of added with beneficial to the seepage velocity for improving body fluid, effectively prevent the malabsorptions such as side leakage, rear leakage.
Claims (11)
1. a kind of perforate is molded cylinder mould, it is characterised in that：It is cylindric metallic object, and its perisporium has several through holes, institute
Stating the outer surface of perisporium has several perforating needles, and the thickness of the perisporium is 0.5mm ~ 1.2mm, and the through hole number is 20 ~
1600/cm2, the area of the single through hole is 0.03mm2~2.5mm2, the perforating needle number is 3 ~ 50/cm2, it is described
The area of single perforating needle bottom is 0.4mm2~5mm2, and the area of single perforating needle bottom is at least the area of single through hole
More than 2 times.
2. perforate as claimed in claim 1 is molded cylinder mould, it is characterised in that：Connected between the through hole is each by rib,
The rib has the lines of outwardly convex raised or dot bulge.
3. perforate as claimed in claim 2 is molded cylinder mould, it is characterised in that：The lines are raised or the height of dot bulge is
0.02mm~0.2mm。
4. perforate as claimed in claim 1 is molded cylinder mould, it is characterised in that：The outer surface of the perisporium has several raised
Region and sunk area.
5. perforate as claimed in claim 4 is molded cylinder mould, it is characterised in that：The difference in height of the elevated regions and sunk area
For 0.5mm ~ 2mm.
6. the perforate shaping cylinder mould as described in claim 4 or 5, it is characterised in that：On the elevated regions with sunk area
With described through hole.
7. perforate as claimed in claim 4 is molded cylinder mould, it is characterised in that：There is described punching on the elevated regions
Pin.
8. the perforate shaping cylinder mould as described in claim 1 or 7, it is characterised in that：The height of the perforating needle be 0.5mm ~
5mm。
9. a kind of method for producing film, its production stage include：Polyolefin blend is passed through into screw extruder melting extrusion
Flow out to form casting films through T-shaped mould head, perforate forming net of the casting films pile warp as described in claim 1 to 8 any one
Cage, described perforate shaping cylinder mould are fixed on the assembly drum being connected with vavuum pump；The assembly drum, which has, is located at assembly drum one
The suction mouth region of side；Vacuum pump operation causes the air inside assembly drum to be sucked out, is inhaled when casting films reach vacuum
During the domain of mouth region, it is poor that the surfaces externally and internallies of casting films forms external and internal pressure, and casting films form infundibulate aperture, the pass of aperture with it is described
Perforate shaping cylinder mould on through hole aperture it is consistent while described perforate shaping cylinder mould perforating needle puncture casting films, flow
Prolong film and form infundibulate macropore, the perforated film with macropore and aperture is formed so as to casting films.
A kind of 10. method for producing film as claimed in claim 9, it is characterised in that：The entrance in the suction mouth region
The temperature for locating casting films is 70 DEG C ~ 350 DEG C.
A kind of 11. method for producing film as claimed in claim 9, it is characterised in that：The vacuum of the assembly drum is
0.01MPa~0.1MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506741.0A CN107374828B (en) | 2017-06-28 | 2017-06-28 | Hole-forming mesh cage and method for producing film by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506741.0A CN107374828B (en) | 2017-06-28 | 2017-06-28 | Hole-forming mesh cage and method for producing film by using same |
Publications (2)
| Publication Number | Publication Date |
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| CN107374828A true CN107374828A (en) | 2017-11-24 |
| CN107374828B CN107374828B (en) | 2023-02-28 |
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|---|---|---|---|
| CN201710506741.0A Active CN107374828B (en) | 2017-06-28 | 2017-06-28 | Hole-forming mesh cage and method for producing film by using same |
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| CN108773092A (en) * | 2018-04-27 | 2018-11-09 | 厦门延江新材料股份有限公司 | A kind of production method of composite membrane |
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| CN2912578Y (en) * | 2006-04-14 | 2007-06-20 | 谢继华 | Eyelet touch membrane structure |
| CN101400839A (en) * | 2006-07-14 | 2009-04-01 | 弗莱斯纳有限责任公司 | Apparatus for producing textiles, nonwoven substances, spunbonded fabrics, paper materials and/or perforated films |
| CN1943530A (en) * | 2006-11-13 | 2007-04-11 | 蔡子辛 | Composite punching film and its producing method |
| CN202186964U (en) * | 2011-07-29 | 2012-04-11 | 苏州斯迪克电子胶粘材料有限公司 | Hot melt adhesive double-sided adhesive tape |
| CN104981337A (en) * | 2012-12-05 | 2015-10-14 | 屈德加薄膜产品股份有限公司 | Method for providing micro-aberrations on a film |
| CN106064490A (en) * | 2016-07-07 | 2016-11-02 | 厦门延江新材料股份有限公司 | The production method of a kind of perforated film and true hole perforating device thereof |
| CN106319763A (en) * | 2016-08-25 | 2017-01-11 | 厦门延江新材料股份有限公司 | Perforated non-woven cloth and preparation method thereof |
| CN207785370U (en) * | 2017-06-28 | 2018-08-31 | 厦门延江新材料股份有限公司 | Trepanning is molded cylinder mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108357184A (en) * | 2018-01-12 | 2018-08-03 | 厦门延江新材料股份有限公司 | A kind of preparation method of composite membrane |
| CN108773092A (en) * | 2018-04-27 | 2018-11-09 | 厦门延江新材料股份有限公司 | A kind of production method of composite membrane |
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