CN107139445B - A kind of embossing group wheel and a kind of preparation method of transparent PVC film - Google Patents
A kind of embossing group wheel and a kind of preparation method of transparent PVC film Download PDFInfo
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- CN107139445B CN107139445B CN201710431555.5A CN201710431555A CN107139445B CN 107139445 B CN107139445 B CN 107139445B CN 201710431555 A CN201710431555 A CN 201710431555A CN 107139445 B CN107139445 B CN 107139445B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
- B29C59/043—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts for profiled articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2433/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a kind of embossing group wheel, the embossed wheel arranged from top to bottom, Teflon wheel and cooling steel wheel, the wheel face of the cooling steel wheel and the wheel face of the Teflon wheel are in close contact；The invention also discloses a kind of preparation methods of transparent PVC film.Transparent PVC film light transmittance prepared by preparation method using the present invention is 80% or more, and does not have flowing water line.
Description
Technical field
The present invention relates to the production technology of PVC film, especially a kind of embossing group wheel and a kind of preparation of transparent PVC film
Method.
Background technology
Existing transparent PVC toy, window film use the hyaline membrane that calender comes out on the market, and hyaline membrane draws in smooth surface to be taken
Rapid cooling molding is taken turns, there are two kinds of drawbacks, drawbacks one for this technique productions transparent membrane：Film draw take wheel section rapid cooling
In have plasticizer i.e. condensate oil, be typically employed in draw wheel back side dress oil absorbing cloth taken to solve the problems, such as condensate oil, need often more
Oil absorbing cloth is changed, and has the incomplete problem of oil suction；Drawback two：Film Flow water wave is serious and surface smoothness is poor；Another is
Water transparent membrane, the i.e. saturating film of crystal are crossed, this technique is that PVC rubber calenderings come out, and is then cooled to by the sink equipped with water
Type, this technique productions come out film and although solve the problems, such as condensate oil, and this technique can mitigate flowing water line, but not
This phenomenon can be fully solved.
Invention content
Based on this, one kind is provided and can be removed completely it is an object of the invention to overcome above-mentioned the deficiencies in the prior art place
The production technology of the transparent PVC film of flowing water line.
To achieve the above object, the technical solution that the present invention takes is：A kind of embossing group wheel, the embossed wheel group include from
Up to the embossed wheel of lower arrangement, Teflon wheel and cooling steel wheel, the wheel face of the wheel face of the cooling steel wheel and the Teflon wheel
It is in close contact.Preferably, embossed wheel group includes the embossed wheel being vertically arranged from top to bottom, Teflon wheel and cooling steel wheel.
Preferably, the embossed wheel is minute surface steel wheel.Teflon material has certain hardness as a result, when Teflon wheel
Film two sides can be made to reach mirror effect when combining embossing with minute surface steel wheel.
Preferably, the wheel surface roughness of the Teflon wheel is 0.07~0.12um of Ra.It should be noted that roughness
For 0.07~0.12um of Ra when, the wheel face of Teflon wheel has mirror effect, to improve the transparency of PVC film.
Preferably, the rubber wheel includes the iron core of internal layer, the PET black glues layer of the cladding iron core and the cladding PET
The teflon layer of black glue layer, the interior chilled water for being filled with 7~20 DEG C of the iron core.Chilled water can drop teflon layer as a result,
Temperature；The chilled water can be manufactured by jelly water dispenser.
Preferably, the temperature of the cooling steel wheel is 2~5 DEG C.It should be noted that sizing material is electric from calender CR3/CR4
Plating minute surface wheel (i.e. third round and fourth round) calendering comes out, and film two sides is bright, but there are buildup line, that is, flowing water lines, using straight
The wheel group (including minute surface steel wheel and Teflon wheel) of pressure mode is in 50~60KG/cm2Handle flowing water line is flattened under pressure,
During this, due to teflon layer weak heat-dissipating, film is in embossing due to Teflon wheel surface temperature height easy tos produce anti-glue
Scar is formed, uneven surface is caused, after teflon layer is with cooling steel wheel contact, the wheel face temperature of Teflon wheel is dropped
It is low, to avoid the generation of scar in PVC film.
As another aspect of the present invention, the present invention also provides a kind of preparation method of transparent PVC film, including it is as follows
Step：
(1) raw material of following parts by weight is weighed：100 parts of PVC powder, 20~70 parts of plasticizer, 2~5 parts of stabilizer,
With 0.5~2.0 part of processing aid, internal mixing and plasticizing, is plasticized is allowed to uniform later, obtain sizing material, gained again after mixing
Sizing material filters；
(2) after filtered sizing material calendering obtained by step (1), by above-mentioned embossed wheel group embossing molding, film is obtained；
(3) film obtained by step (2) through excess temperature refining, it is cooling after shape, then, successively through cutting edge, preheating, pressurization, winding,
Up to the transparent PVC film.It should be noted that plasticizer can be diisononyl phthalate；Stabilizer can be
Barium zinc stabilizer；Processing aid can be poly- propylacrylate methyl esters.
Preferably, the calendering is taken turns calender using inverted L shape 4 and is carried out, and the inverted L shape 4 takes turns the third round and the of calender
The wheel face of four-wheel is plating minute surface.
Preferably, the temperature of step (3) the medium temperature refining is 25~90 DEG C, and the cooling is realized by cooling wheel group, institute
The temperature for stating cooling wheel group is 10~50 DEG C.
Preferably, the light transmittance of the transparent PVC film is 80% or more.
In conclusion beneficial effects of the present invention are：
Transparent PVC film using embossing group wheel and preparation method preparation in the present invention has transparency height, without flowing water
The advantages of line.
Description of the drawings
Fig. 1 is the flow diagram of the preparation method of transparent PVC film in the present invention；
Fig. 2 is the structural schematic diagram of embossing group wheel in the present invention；
Wherein, 1, high-speed mixer, 2, mixer, 3, two-roll mill, 4, filter, 5, calender, 6, cooling steel wheel,
7, minute surface steel wheel, 8, Teflon wheel, 9, temperature refining wheel, 10, pound material system, 11, funnel, 12, filter screen, 13, third round, 14, the
Four-wheel, 15, cooling wheel group, 16, coiling machine, 17, iron core, 18, PET black glue layers, 19, teflon layer.
Specific implementation mode
The transparent PVC thin film preparation process of the present invention is had using Φ 315mm minute surfaces steel wheels and the special auxiliary wheels of Φ 360mm,
Be embossed out in a manner of vertical compression, the minute surface wheel tools of two unlike materials to calendering come out adhesive plaster carry out to press solve flowing water line with
Surface effect, this technology to auxiliary embossed wheel it is more demanding, auxiliary embossed wheel wheel face use Teflon material, primary structure be
The PET glue that one layer of 30mm thickness is wrapped on the iron core of logical chilled water, then covers the Teflon of one layer of 5mm thickness, finally, by grinding on surface
Teflon surface is ground, its roughness is made to reach the mirror effect of Ra0.07~0.12um；It is also desirable to solve because of Teflon wheel
Poor radiation causes two-wheeled to form scar to occurring anti-viscous Teflon wheel during pressure, refills one below Teflon wheel as a result,
The temperature of a Φ 200mm auxiliary heat dissipations minute surface steel wheel, this wheel is controlled at 2~5 DEG C, is in direct contact with Teflon wheel, with cooling
Teflon wheel solves the problems, such as Teflon weak heat-dissipating.In preparation process, adhesive plaster is being embossed the minute surface steel wheel and minute surface being used for
Pass through among Teflon wheel two-wheeled, minute surface steel wheel reaches 50~60KG/cm by hydraulic device2Downward pressure, Teflon wheel
Special substance and composite structure make Teflon wheel have certain hardness, to combine with minute surface steel wheel be embossed when can make it is thin
Film two sides reaches mirror effect.
To better illustrate the object, technical solutions and advantages of the present invention, below in conjunction with the drawings and specific embodiments pair
The present invention is described further.
Embodiment 1
A kind of embossing group wheel, as shown in Fig. 2, including the embossed wheel, Teflon wheel 8 and cooling steel wheel 6 that arrange from top to bottom,
The wheel face of cooling steel wheel 6 is in close contact with the wheel face of Teflon wheel 8, and embossed wheel is minute surface steel wheel 7, and the wheel face of Teflon wheel 8 is thick
Rugosity is 0.07~0.12um of Ra, and Teflon wheel 8 includes the iron core 17 of internal layer, coats the PET black glues layer 18 and cladding of iron core 17
The temperature of the teflon layer 19 of PET black glues layer 18, the interior chilled water for being filled with 7~20 DEG C of iron core 17, cooling steel wheel 6 is 2~5
℃。
Embodiment 2
A kind of transparent PVC film, preparation method is as shown in Figure 1, include the following steps：
(1) raw material of following parts by weight is weighed：100 parts of PVC powder, 20 parts of diisononyl phthalate (DINP), 5
The barium zinc stabilizer and 0.5 part of poly- propylacrylate methyl esters of part, enter mixer 2 after mixing in high-speed mixer 1
(can also be planetary extruder) internal mixing and plasticizing is plasticized into two-roll mill 3 is allowed to uniform later again, and gained sizing material passes through
The filtering removal impurity of filter 4；
(2) sizing material obtained by step (1) passes through embossed wheel group as described in Example 1 after 5 calendering of the wheel of inverted L shape 4 calendering
(temperature of Ra0.07um, cooling steel wheel are 5 DEG C) embossing molding；
(3) film obtained by step (2) is shaped after 25 DEG C of temperature refinings, 10 DEG C of cooling wheel groups 15 cool down, and then, is passed through successively
Cutting edge, preheating, pressurization, winding are to get the transparent PVC film.
Wherein, the wheel face for the third round 13 and fourth round 14 that inverted L shape 4 takes turns calender is plating minute surface.
Embodiment 3
A kind of transparent PVC film, preparation method is as shown in Figure 1, include the following steps：
(1) raw material of following parts by weight is weighed：100 parts of PVC powder, 44 parts of DINP, 3.5 parts of barium zinc stabilizer, and
1.2 parts of poly- propylacrylate methyl esters, it (can also be that planet squeezes out to enter mixer 2 after mixing in high-speed mixer 1
Machine) internal mixing and plasticizing, it is plasticized again into two-roll mill 3 is allowed to uniform later, gained sizing material filters off removal of impurities through filter 4
Matter；
(2) sizing material obtained by step (1) passes through embossed wheel group as described in Example 1 after 5 calendering of the wheel of inverted L shape 4 calendering
(temperature of Ra0.096um, cooling steel wheel are 3.6 DEG C) embossing molding；
(3) film obtained by step (2) is shaped after 50 DEG C of temperature refinings, 32 DEG C of cooling wheel groups 15 cool down, and then, is passed through successively
Cutting edge, preheating, pressurization, winding are to get the transparent PVC film.
Wherein, the wheel face for the third round 13 and fourth round 14 that inverted L shape 4 takes turns calender is plating minute surface.
Embodiment 4
A kind of transparent PVC film, preparation method is as shown in Figure 1, include the following steps：
(1) raw material of following parts by weight is weighed：100 parts of PVC powder, 70 parts of DINP, 2 parts of barium zinc stabilizer and 2.0
The poly- propylacrylate methyl esters of part enters mixer 2 (can also be planetary extruder) after mixing in high-speed mixer 1
Internal mixing and plasticizing is plasticized into two-roll mill 3 is allowed to uniform later again, and gained sizing material filters removal impurity through filter 4；
(2) sizing material obtained by step (1) passes through embossed wheel group as described in Example 1 after 5 calendering of the wheel of inverted L shape 4 calendering
(temperature of Ra0.12um, cooling steel wheel are 2 DEG C) embossing molding；
(3) film obtained by step (2) is shaped after 90 DEG C of temperature refinings, 50 DEG C of cooling wheel groups 15 cool down, and then, is passed through successively
Cutting edge, preheating, pressurization, winding are to get the transparent PVC film.
Wherein, the wheel face for the third round 13 and fourth round 14 that inverted L shape 4 takes turns calender is plating minute surface.
The light transmittance test of the transparent PVC film of 5 present invention of embodiment
Detect object：Transparent PVC film made from embodiment 2~4 and in the market a kind of transparent PVC film are (as a contrast
Group), the transparent PVC film formulation in the market is identical as the formula of embodiment 3, and preparation process is rolled using calender, in light
Face, which is drawn, takes wheel rapid cooling molding.
Light transmittance detection method：Using WGT-S light transmittances/mist degree analyzer, this instrument is transparent, semi-transparent to being suitable for all
The test of parallel plane sample (plastic plate, sheet material etc.) light transmittance, mist degree when bright.
Concrete operations are as follows：
1, instrument power source plug is inserted into socket, it should be ensured that ground connection is effective, and Jin Hou backs out three protection caps of instrument；
It, must be first by specimen holder loaded on (screwing on two screws) on the left of receiver when 2, surveying sample；
3, it opens power supply to be preheated, two windows show that two decimal points, ready light " ready " indicate feux rouges, no
" ready " lamp instruction long becomes green light, and the left side reads window and " P " occurs, and " H " occurs in the right, and sends out ring tone.At this time in blank sample
In the case of product " P100.00 ", " H0.00 " will be shown by test switch, instrument；
If do not shown, " P100.00 ", " H0.00 " illustrate that light source preheating is inadequate, can again be switched on after the power supply of series of fortified passes, repeat 1~2
Secondary, instrument several minutes of pre- thermostabilization again at appearance " P100.00 ", " H0.00 " are switched by " TEXT ", and Microcomputer Collecting instrument is certainly
After body data, occurs " P ", " H " once again and call, you can measure；
4, sample is loaded onto, by testing button, indicator light switchs to feux rouges, shortly shows transmittance values on a display screen
And mist degree numerical value, the former unit are 0.1%, the latter 0.01%.At this point, indicator light switchs to green light, need to carry out repetition measurement, it can
Sample is not taken down, multiple measurement data can be obtained by testing button again, then arrives that its arithmetic average is on duty to make measurement result, to carry
High measurement accuracy；The result of same lot sample can continuously be measured by replacing sample repetition TEXT.
Testing result：As shown in table 1 below.
The light transmittance of the transparent PVC film of 1 present invention of table
| Detect object | Light transmittance | Flowing water line |
| Control group | 67% | It is more |
| Transparent PVC film made from implementing 2 | 82.1% | Nothing |
| Transparent PVC film made from implementing 3 | 93.4% | Nothing |
| Transparent PVC film made from implementing 4 | 85.7% | Nothing |
As can be seen from Table 1, the light transmittance of PVC film made from preparation method through the invention is apparently higher than market
Upper existing hyaline membrane, and there is no the generations of flowing water line, wherein most with the light transmittance of PVC film made from embodiment 3
It is good.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art should
Understand, technical scheme of the present invention can be modified or replaced equivalently, without departing from the essence of technical solution of the present invention
And range.
Claims (4)
1. a kind of embossing group wheel, which is characterized in that the embossed wheel group include the embossed wheel arranged from top to bottom, Teflon wheel and
Cooling steel wheel, the wheel face of the cooling steel wheel and the wheel face of the Teflon wheel are in close contact, and the embossed wheel is minute surface steel wheel,
The wheel surface roughness of the Teflon wheel is 0.096 μm of Ra, and the Teflon wheel includes the iron core of internal layer, the cladding iron core
PET black glues layer and coat the teflon layer of the PET black glues layer, 7~20 DEG C of chilled water is filled in the iron core, it is described
The temperature of cooling steel wheel is 3.6 DEG C.
2. a kind of preparation method of transparent PVC film, which is characterized in that include the following steps：
(1) raw material of following parts by weight is weighed：100 parts of PVC powder, 44 parts of DINP, 3.5 parts of barium zinc stabilizer and 1.2 parts
Poly- propylacrylate methyl esters, internal mixing and plasticizing after mixing, plasticizing is allowed to uniform again later, obtains sizing material, gained sizing material
Filtering；
(2) after filtered sizing material calendering obtained by step (1), by embossed wheel group embossing molding as described in claim 1,
Obtain film；
(3) film obtained by step (2) through excess temperature refining, it is cooling after shape, then, successively through cutting edge, preheating, pressurization, winding to get
The transparent PVC film.
3. preparation method as claimed in claim 2, which is characterized in that the calendering is taken turns calender using inverted L shape 4 and carried out, institute
The wheel face for stating third round and fourth round that inverted L shape 4 takes turns calender is plating minute surface.
4. preparation method as claimed in claim 2, which is characterized in that the temperature of step (3) the medium temperature refining is 25~90 DEG C,
The cooling realizes that the temperature of the cooling wheel group is 10~50 DEG C by cooling wheel group.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710431555.5A CN107139445B (en) | 2017-06-09 | 2017-06-09 | A kind of embossing group wheel and a kind of preparation method of transparent PVC film |
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| CN201710431555.5A CN107139445B (en) | 2017-06-09 | 2017-06-09 | A kind of embossing group wheel and a kind of preparation method of transparent PVC film |
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| CN107139445A CN107139445A (en) | 2017-09-08 |
| CN107139445B true CN107139445B (en) | 2018-11-13 |
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| CN107972218A (en) * | 2017-12-27 | 2018-05-01 | 上海泓阳机械有限公司 | A kind of PVC ganoine thin films production equipment and its production technology |
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| CN202129991U (en) * | 2011-06-27 | 2012-02-01 | 杭州信丰新能源科技有限公司 | Embossing device |
| CN202196434U (en) * | 2011-08-25 | 2012-04-18 | 常州百佳薄膜科技有限公司 | Embossing mechanism for PVC (Poly Vinyl Chloride) magnetic card production line |
| CN202462759U (en) * | 2012-03-22 | 2012-10-03 | 浙江宇立塑胶有限公司 | PVC (polyvinyl chloride) thin film calendering former |
| CN106113519A (en) * | 2016-06-29 | 2016-11-16 | 浙江成如旦新能源科技有限公司 | A kind of without the process of preparing of light PVC film in shadow |
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