CN109868682A - A kind of technique preparing polylactic acid membrane and its sizer - Google Patents
A kind of technique preparing polylactic acid membrane and its sizer Download PDFInfo
- Publication number
- CN109868682A CN109868682A CN201910037012.4A CN201910037012A CN109868682A CN 109868682 A CN109868682 A CN 109868682A CN 201910037012 A CN201910037012 A CN 201910037012A CN 109868682 A CN109868682 A CN 109868682A
- Authority
- CN
- China
- Prior art keywords
- paper product
- polylactic acid
- solution
- drying
- lamination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention provides a kind of techniques for preparing polylactic acid, due to elder generation on paper product the first solution of upper one layer of biological decomposition material, and lamination operation also uses the poly-lactic acid material of same nature, the two be easier merge and, since the solution of biological decomposition material has goed deep into paper product, it penetrates into the fiber of paper product, polylactic acid is merged with the biological decomposition material by the temperature of lamination again, keep the polylactic acid of lamination operation grip on paper stronger, it is not easy dampness and damaged, while has the advantage that waterproofness: without worries that paper storing is of long duration and causes to soften；Stiffness: paper sheet thickness can be reduced；Rigidity: paper sheet thickness can be reduced；Disposable property: it makes moist without worry；Decomposability: it can also be decomposed in compost or the earth.The present invention is authenticated by U.S.'s food certification and European Union, and lamination advantage is as follows again for first-class glue: the solution and polylactic acid symbolic animal of the birth year same sex material of biological decomposition material；Lamination thickness can be reduced again, i.e. cost reduces.
Description
Technical field
The present invention be it is related with the laminar product being made of polyester, in particular to a kind of polylactic acid membrane and its manufacturer
Method.
Background technique
Polylactic acid is that the high molecular polymer of multipurpose compost through everfermentation, is gone completely by extracting starch in plant
The processes such as water, polymerization are fabricated, therefore non-toxic.In addition polylactic acid is the one of which of biological decomposable plastics, after decomposition
It will form water and carbon dioxide, can be reduced the impact to ecology.
However polylactic acid is easy hydrolysis, therefore saves and be not easy；Furthermore the engineering properties of polylactic acid article is not strong, it is easy damage
It is bad.Therefore current polylactic acid article all can be in conjunction with other high molecule plastic raw materials to be modified.However according to different additives
Ingredient opposite the problems such as generating environmental protection, recycling, noxious material can be discharged in 70 degree temperature, and can not decompose to lose
It is original to use the purpose for not having welding material.
Also due to the polylactic acid energy elevating mechanism property after modification, therefore manufacture polylactic acid membrane is used in carry out lamination operation
When, it is not required to especially control thickness.Even if amount is few, it can also reach lamination energy dustproof and waterproof and other effects on paper product；If amount is more,
Its effect will not be reduced.So only during conveying polylactic acid, using the output quantity of conveying speed control polylactic acid, not
Accurate control.
It can be seen that above-mentioned existing polylactic acid is in method, product structure and using upper, it is clear that there are still have it is inconvenient with it is scarce
It falls into, and needs to be further improved.Therefore a kind of new polylactic acid membrane and its manufacturing method how are founded, also becomes current
Industry pole needs improved target.
Summary of the invention
It is an object of the present invention to provide the polylactic acid membranes of a kind of waterproofness, stiffness, rigidity, disposable property, decomposability.
In order to reach above-mentioned technical purpose, the technical solution of the present invention is to provide a kind of sizer of polylactic acid membrane,
Including operating platform, which is characterized in that be equipped with hopper in the operating platform, the two sides of the operating platform are fixed equipped with roller
Device, it is fixed on the operational platform by rolling tube fixing device with wide conveying roller with paper product, and in the hopper being set to, it is described
The solution of bioerodible material is equipped in hopper, paper product is fitted in the surface of conveying roller by transmission and is immersed in the solution
Interior, the conveying roller is connected to motor, and is equipped with paper product above the hopper with wide scraper, and the scraper is located at paper product leaching
The top in hopper is steeped, and fixed on the operational platform by the fixed device of scraper, the scraper can lead at a distance from paper product
The fixed device of scraper is crossed to adjust；When conveying roller is rotated by motor, paper product transmits from the bottom to top, is successively immersed in hopper
In interior solution, and the paper product with solution is passed up by conveying roller, when paper product is sent to below scraper, scraper and paper
The preset distance of product can strike off solution extra on paper product.
Preferably, the scraper is equipped with blade, for striking off solution extra on paper product.
Preferably, the scraper is equipped with the blade of three pieces equal part, and it is extra that the three pieces blade is scraped for replacement mutually
Solution.
The present invention also provides a kind of techniques for preparing polylactic acid membrane, it is characterised in that includes following step:
The first step rolls out: rolling out paper product on device 1 from rolling out；
Gluing: second step rolls out device 1 and paper product is transferred on sizer 2, the sizer 2 is on paper product
Coat the solution of one layer of bioerodible material；Then paper product is sent on drying unit 3；
Third step, drying: the paper product after 3 pairs of drying unit gluings carries out the aridity that drying accelerates paper product surface；
4th step, winding；Paper product after drying is sent to wrap-up 4 by the drying unit 3, to the paper of above-mentioned drying
Product are wound.
5th step, rolls out: above-mentioned steps four being obtained paper product and are rolled out on device 1 from rolling out；
6th step, lamination: heating the polylactic acid raw material being made of completely polylactic acid controlled at 172 DEG C to 197 DEG C,
Melt the polylactic acid raw material；And passing through volume control device for the thickness control of polylactic acid raw material is 10 microns to 30 microns
Film-form, and flowed out by discharge port and carry out lamination operation, make to be formed one on the paper product with a thickness of 10 microns to 30 microns of poly- cream
Sorrel, wherein the base weight of the paper product is 30g/m2 to 318g/m2；
Drying: 7th step carries out drying and processing to the post-job paper product of above-mentioned lamination；
Winding: 8th step winds the paper product after above-mentioned drying.
Preferably, the polylactic acid raw material needs to be dehumidified for the first time before not heating, and the first dehumidifying is using red
Outside line or by the way of low temperature drying.
Preferably, the polylactic acid raw material dehumidifies simultaneously during transportation, what the transmission process carried out simultaneously
Dehumidifying is dehumidified using vacuum.
Preferably, the temperature that the polylactic acid raw material melts is controlled at 188 DEG C.
Preferably, the biological decomposition material is the liquid polylactic acid dissolved by heating.
Heretofore described biological decomposition material is the liquid polylactic acid dissolved by heating；Drying unit of the invention be in order to
Accelerate to air-dry, can also with natural air drying, the present invention due to elder generation on paper product the first solution of upper one layer of biological decomposition material, and lamination
Operation also uses the poly-lactic acid material of same nature, the two be easier to merge and, since the solution of biological decomposition material has goed deep into
It in paper product, penetrates into the fiber of paper product, then is merged polylactic acid with the biological decomposition material by the temperature of lamination, make lamination
The polylactic acid of industry grip on paper is stronger, it is not easy to dampness and it is damaged, while having the advantage that waterproofness: without worry paper
It opens and puts of long duration and cause to soften；Stiffness: paper sheet thickness can be reduced；Rigidity: paper sheet thickness can be reduced；Disposable property: nothing
Must worry dampness, avoid dampness cause it is mouldy；Decomposability: it can also be decomposed in compost or the earth.The present invention is by the U.S.
Food certification and European Union's certification, and lamination advantage is as follows again for first-class glue: the solution and the polylactic acid symbolic animal of the birth year same sex of biological decomposition material
Material；Lamination thickness can be reduced again, i.e. cost reduces.
Detailed description of the invention
Fig. 1 is the flow diagram of the gluing process of paper product provided by the invention；
Fig. 2 is the structural schematic diagram of sizer provided by the invention；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is the flow diagram of the paper product gluing that present invention side provides and its technique for preparing polylactic acid membrane；
Serial number is as follows in figure:
1, device is rolled out；2, sizer；2-1；Conveying roller；2-2, rolling tube fixing device；2-3, blade；2-4, scraper
Fixed device；2-5, scraper；2-6, hopper；3, drying unit；4, wrap-up.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
As shown in Figure 1, providing a kind of sizer of polylactic acid membrane, including operating platform for the present invention, the operation is flat
Hopper 2-6 is equipped in platform, the two sides of the operating platform are equipped with rolling tube fixing device 2-1, with paper product with wide conveying roller 2-2
It is this 2-1 fixed on the operational platform by rolling tube fixing device (bagasse or stalk), and in the hopper 2-6 being set to,
The solution of bioerodible material is equipped in the hopper 2-6, paper product is fitted in surface and the leaching of conveying roller 2-2 by transmission
In the solution, the conveying roller 2-2 is connected to motor bubble, is equipped with paper product above the hopper 2-6 with wide scraper 2-
5, the scraper 2-5 are located at the top that paper product is immersed in hopper 2-7, and are fixed on operation by the fixed device 2-4 of scraper and put down
On platform, the scraper 2-5 can be adjusted at a distance from paper product by the fixed device 2-4 of scraper；When conveying roller 2-2 passes through motor
When rotation, paper product transmits from the bottom to top, is successively immersed in the solution in hopper 2-6, and be passed up band by conveying roller 2-1
There is the paper product of solution, when paper product is sent to below scraper 2-5, scraper 2-5 and the preset distance of paper product can will be on paper products
Extra solution strikes off.
Further, the scraper 2-5 is equipped with the blade 2-3, the three pieces blade 2-3 of three pieces equal part for substituting mutually
Scrape redundant solution.
The present invention also provides a kind of techniques for preparing polylactic acid membrane, it is characterised in that includes following step:
The first step rolls out: rolling out paper product on device 1 from rolling out；
Gluing: second step rolls out device 1 and paper product is transferred on sizer 2, the sizer 2 is on paper product
Coat the solution of one layer of bioerodible material；Then paper product is sent on drying unit 3；
Third step, drying: the paper product after 3 pairs of drying unit gluings carries out the aridity that drying accelerates paper product surface；
4th step, winding；Paper product after drying is sent to wrap-up 4 by the drying unit 3, to the paper of above-mentioned drying
Product are wound.
5th step, rolls out: above-mentioned steps four being obtained paper product and are rolled out on device 1 from rolling out；
6th step, lamination: heating the polylactic acid raw material being made of completely polylactic acid controlled at 172 DEG C to 217 DEG C,
Melt the polylactic acid raw material；And passing through volume control device for the thickness control of polylactic acid raw material is 10 microns to 30 microns
Film-form, and flowed out by discharge port and carry out lamination operation, make to be formed one on the paper product with a thickness of 10 microns to 30 microns of poly- cream
Sorrel, wherein the base weight of the paper product is 30g/m2 to 318g/m2；
Drying: 7th step carries out drying and processing to the post-job paper product of above-mentioned lamination；
Winding: 8th step winds the paper product after above-mentioned drying.
Further, the polylactic acid raw material needs to be dehumidified for the first time before not heating, and the first dehumidifying is using red
Outside line, or by the way of low temperature drying；The polylactic acid raw material dehumidifies simultaneously during transportation, the transmission process
The dehumidifying carried out simultaneously is dehumidified using vacuum.
According to the 6th step, the temperature that the polylactic acid raw material melts is controlled at 188 DEG C.
Heretofore described biological decomposition material is the liquid polylactic acid dissolved by heating；Drying unit of the invention be in order to
Accelerate to air-dry, it can also be with natural air drying.
Paper product of the present invention is addition or forming at division system using bagasse or stalk, edible because of sugarcane
Property, so for from material, because the fiber of sugarcane is long and plasticity is strong, so finished product is being made in sugarcane, do not need because
Formation problems and add adjuvant, more fully ensured that 100% property of its product, and decomposable and degradability, be easier to
It is decomposed in soil, plays the effect of environmental protection.
The present invention due to elder generation on paper product the first solution of upper one layer of biological decomposition material, and lamination operation also uses the phase same sex
The poly-lactic acid material of matter, the two be easier merge and, since the solution of biological decomposition material has goed deep into paper product, penetrate into paper product
In fiber, then by the temperature of lamination polylactic acid is merged with the biological decomposition material, makes the polylactic acid of lamination operation on paper
Grip is stronger, it is not easy to dampness and it is damaged, while having the advantage that waterproofness: without worrying that paper storing is of long duration and leads
Mutagens are soft；Stiffness: paper sheet thickness can be reduced；Rigidity: paper sheet thickness can be reduced；Disposable property: it without dampness is worried, avoids
Dampness causes mouldy；Decomposability: it can also be decomposed in compost or the earth.The present invention recognizes by U.S.'s food certification and European Union
Card, and lamination advantage is as follows again for first-class glue: the solution and polylactic acid symbolic animal of the birth year same sex material of biological decomposition material；Leaching can be reduced again
Film thickness, i.e. cost reduce.
Claims (8)
1. a kind of sizer of polylactic acid membrane, including operating platform, which is characterized in that be equipped with hopper in the operating platform
The two sides of (2-6), the operating platform are equipped with rolling tube fixing device (2-1), pass through rolling with wide conveying roller (2-2) with paper product
Tube fixing device (2-1) is fixed on the operational platform, and in the hopper (2-6) being set to, being equipped with biology in the hopper (2-6) can
The solution of decomposing material, paper product are fitted in the surface of conveying roller (2-2) by transmission and are immersed in the solution, the transmission
Roller (2-2) is connected to motor, and is equipped with paper product above the hopper (2-6) with wide scraper (2-5), the scraper (2-5)
It is immersed in the top in hopper (2-6) positioned at paper product, and fixed on the operational platform by scraper fixed device (2-4), it is described
Scraper (2-5) can be adjusted at a distance from paper product by scraper fixed device (2-4)；When conveying roller (2-2) is turned by motor
When dynamic, paper product transmits from the bottom to top, is successively immersed in the solution in hopper (2-6), and be passed up by conveying roller (2-2)
Paper product with solution, when paper product is sent to below scraper (2-5), scraper (2-5) and the preset distance of paper product can be incited somebody to action
Extra solution strikes off on paper product.
2. a kind of sizer of polylactic acid according to claim 1, which is characterized in that the scraper (2-5) is equipped with
Blade (2-3), for striking off solution extra on paper product.
3. a kind of sizer of polylactic acid according to claim 2, which is characterized in that the scraper (2-5) is equipped with
The blade (2-3) of three pieces equal part, the three pieces blade (2-3) scrape redundant solution for substituting mutually.
4. a kind of technique for preparing polylactic acid membrane of the claim according to 1-3, it is characterised in that include following step:
The first step rolls out: rolling out paper product on device (1) from rolling out；
Gluing: second step rolls out device (1) and paper product is transferred on sizer (2), the sizer (2) is in paper product
The solution of one layer of bioerodible material of upper coating；Then paper product is sent on drying unit (3)；
Third step, drying: the drying unit (3) carries out the aridity that drying accelerates paper product surface to the paper product after gluing；
4th step, winding；Paper product after drying is sent to wrap-up (4) by the drying unit (3),
The paper product of above-mentioned drying is wound.
5th step, rolls out: above-mentioned steps four being obtained paper product and are rolled out on device (1) from rolling out；
Lamination: 6th step controlled at 172 DEG C to 217 DEG C to being heated completely by the polylactic acid raw material that polylactic acid forms, makes this
Polylactic acid raw material melts；And pass through the film that the thickness control of polylactic acid raw material is 10 microns to 30 microns by volume control device
Shape, and flowed out by discharge port and carry out lamination operation, makes to be formed one on the paper product with a thickness of 10 microns to 30 microns of polylactic acid membrane,
Wherein the base weight of the paper product is 30g/m2 to 318g/m2；
Drying: 7th step carries out drying and processing to the post-job paper product of above-mentioned lamination；
Winding: 8th step winds the paper product after above-mentioned drying.
5. a kind of lamination technique of polylactic acid membrane according to claim 4, which is characterized in that the polylactic acid raw material is not
It before heating, needs to be dehumidified for the first time, the first dehumidifying is using infrared ray or or by the way of low temperature drying.
6. a kind of lamination technique of polylactic acid membrane according to claim 5, which is characterized in that the polylactic acid raw material is defeated
It during sending while dehumidifying, the dehumidifying that the transmission process carries out simultaneously is dehumidified using vacuum.
7. a kind of lamination technique of polylactic acid membrane according to claim 6, which is characterized in that the polylactic acid raw material melts
Temperature control at 188 DEG C.
8. a kind of leaching for polylactic acid membrane that a kind of sizer of polylactic acid membrane according to claim 1-8 is implemented
Membrane process, which is characterized in that the biological decomposition material is the liquid polylactic acid dissolved by heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037012.4A CN109868682A (en) | 2019-01-15 | 2019-01-15 | A kind of technique preparing polylactic acid membrane and its sizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037012.4A CN109868682A (en) | 2019-01-15 | 2019-01-15 | A kind of technique preparing polylactic acid membrane and its sizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109868682A true CN109868682A (en) | 2019-06-11 |
Family
ID=66917637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910037012.4A Pending CN109868682A (en) | 2019-01-15 | 2019-01-15 | A kind of technique preparing polylactic acid membrane and its sizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109868682A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004188884A (en) * | 2002-12-13 | 2004-07-08 | Nippon Pack Kk | Bidirectionally completely biodegradable molded article |
| CN101503869A (en) * | 2008-02-05 | 2009-08-12 | 伟盟工业股份有限公司 | Biodegradable water-proof composite paper and manufacturing method thereof |
| CN101806014A (en) * | 2009-02-16 | 2010-08-18 | 伟盟工业股份有限公司 | Polylactic acid paperboard and food container manufactured by using same |
| TW201309753A (en) * | 2011-08-23 | 2013-03-01 | Wei Mon Ind Co Ltd | Polylactic acid film and manufacturing method thereof |
| US20160069028A1 (en) * | 2013-05-03 | 2016-03-10 | Schattdecor Ag | Method for producing a printable single or multi-layered material web as well as a material web produced in this manner and an associated installation for producing such a material web |
-
2019
- 2019-01-15 CN CN201910037012.4A patent/CN109868682A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004188884A (en) * | 2002-12-13 | 2004-07-08 | Nippon Pack Kk | Bidirectionally completely biodegradable molded article |
| CN101503869A (en) * | 2008-02-05 | 2009-08-12 | 伟盟工业股份有限公司 | Biodegradable water-proof composite paper and manufacturing method thereof |
| CN101806014A (en) * | 2009-02-16 | 2010-08-18 | 伟盟工业股份有限公司 | Polylactic acid paperboard and food container manufactured by using same |
| TW201309753A (en) * | 2011-08-23 | 2013-03-01 | Wei Mon Ind Co Ltd | Polylactic acid film and manufacturing method thereof |
| US20160069028A1 (en) * | 2013-05-03 | 2016-03-10 | Schattdecor Ag | Method for producing a printable single or multi-layered material web as well as a material web produced in this manner and an associated installation for producing such a material web |
Non-Patent Citations (1)
| Title |
|---|
| 陈克复, 中国轻工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Arrieta et al. | Development of flexible materials based on plasticized electrospun PLA–PHB blends: Structural, thermal, mechanical and disintegration properties | |
| US20220251783A1 (en) | Starch-cellulose composite material | |
| JP4809215B2 (en) | Fiber sheet coated or impregnated with biodegradable polymer or polymer blend | |
| KR100827255B1 (en) | A sheet and product based on foamed shaped starch | |
| EP1380401A1 (en) | Apparatus for producing foamed moldings, and method for producing laminated foamed moldings and foamed moldings produced thereby | |
| US11261567B2 (en) | Method and device for the production of a fibrous material web in a papermaking machine | |
| WO2006059112A2 (en) | Improvements in or relating to biodegradable composites | |
| AU2019233963B2 (en) | Biodegradable coatings for biodegradable substrates | |
| JP2021512227A (en) | Method for Producing Film Containing Microfibrillated Cellulose | |
| WO2022027047A1 (en) | Biodegradable paper barrier laminate | |
| CN109867819A (en) | Polylactic acid-starch-PVA composite degradable packaging film and preparation method thereof | |
| CN109868682A (en) | A kind of technique preparing polylactic acid membrane and its sizer | |
| AT506403B1 (en) | METHOD AND ARRANGEMENT FOR PRE-TREATING POLYMER MATERIALS | |
| DE69827666T2 (en) | METHOD FOR THE PRODUCTION OF A DUMPED, SHAPED SUBJECT FROM A NATURAL POLYMERS AND WATER CONTAINING MASS AND DEVICE FOR PRODUCING DAMAGED OBJECTS ACCORDING TO THE PROCESS | |
| JP2012001873A (en) | Method of manufacturing environmentally friendly multi-functional organic mulch using a paper making method | |
| CA2953586A1 (en) | Method for the production of an algae-based container | |
| JPH04135730A (en) | Manufacture of film or sheet consisting of natural polysaccharide | |
| BR112019016803A2 (en) | method for making a hydrophobic element and its use | |
| CA3206132A1 (en) | High durability cardboard product and method for the manufacturing thereof | |
| JP2008106372A (en) | Apparatus for producing natural fiber mat and method for producing natural fiber mat | |
| CN204869831U (en) | Flute machine with humidification device | |
| EP4175827A1 (en) | Rigid biodegradable food container | |
| WO2021001779A1 (en) | Moldable cellulose fiber based material | |
| KR101880896B1 (en) | Manufacturing method of biodegradability foam article with starch | |
| CN102283058B (en) | Novel method for producing multifunctional, environmental-friendly, organic and thin-slice mulching film by using roll-in method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |