CN103395161A - Production technique of polylactic acid (PLA) product - Google Patents
Production technique of polylactic acid (PLA) product Download PDFInfo
- Publication number
- CN103395161A CN103395161A CN2013103027891A CN201310302789A CN103395161A CN 103395161 A CN103395161 A CN 103395161A CN 2013103027891 A CN2013103027891 A CN 2013103027891A CN 201310302789 A CN201310302789 A CN 201310302789A CN 103395161 A CN103395161 A CN 103395161A
- Authority
- CN
- China
- Prior art keywords
- pla
- product
- temperature
- crystallization
- work mould
- 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 invention discloses a production technique of a polylactic acid (PLA) product, which comprises the following steps: mixing materials, coloring, and packaging; adding the raw material mixture into a hopper of an injection molding machine, and closing a hopper cover; installing a jig in which a heating oil way is prepared onto the injection molding machine, and connecting the heating oil way with an oil temperature machine; starting a jig temperature machine and an oil pump thereof, and starting injection molding when the temperature of the jig reaches 85-100 DEG C; after finishing injecting the emulsion, crystallizing the polylactic acid product in the jig cavity; and printing the polylactic acid product with an organic ink, baking the polylactic acid product in a high-temperature cabinet of which the temperature is 180 DEG C above, taking out the polylactic acid product after the baking finishes, and packaging. The PLA product prepared by the technique is completely degradable and environment-friendly, and has the advantages of bright surface gloss, tough and firm texture, low cracking tendency, and bright and firm printing.
Description
Technical field
The present invention relates to a kind of production technology of plastic product, relate in particular to the production technology of a kind of PLA (PLA) product.
Background technology
Polylactic acid PLA is a kind of nontoxic, non-irritating totally biodegradable plastics of thinking so far tool market potential, and it can degradablely be finally carbon dioxide and water under the effect of microorganism.
Present PLA product manufacture is more, but the ubiquity defect.Such as application number, be the disclosed techniques of patent application text such as 200810108900.2,201010110833.5, all have following defect: surface is dim, and quality is tough and tensile not firmly, and easily breaks.
Summary of the invention
In order to overcome defect of the prior art, the invention provides the production technology of a kind of PLA (PLA) product, the product surface gloss that this technique is manufactured is bright-coloured, and strong but pliable in texture firmly extremely being difficult for breaks.
The technical solution adopted for the present invention to solve the technical problems is:
The production technology of a kind of PLA (PLA) product, its technological process is:
1. spice is painted: with organic Masterbatch, stir raw material, after stirring, raw material is poured into to vacuum packaging bag, and seal sack;
2. reinforced: as by above-mentioned, through the raw material that stirs, to be added to the hopper of injection machine, and to build hopper cover;
3. patrix: select the work mould, the inside of this work mould is shaped with the oil circuit of heating, and this work mould is arranged on injection machine, then the oil circuit of heating on the work mould is connected with the oil temperature machine by connected pipes, and check whether each joint connects, whether each oil pipe intact;
4. temperature adjustment injection moulding: open die heater, and be 100 ℃ ~ 120 ℃ by Temperature Setting, after temperature reaches design temperature, open the die heater oil pump, make deep fat enter the oil circuit of heating in the work mould, start injection moulding when work mould temperature to 85 ℃ ~ 100 ℃;
5. crystallization: before completing injection moulding, after injection finished, the poly-lactic acid products of moulding was stayed in die cavity and is carried out crystallization, and crystallization time determines according to the surface area size of product, and product depanning carry out coolingly after crystallization finishes, then put into Turnover Box;
6. secondary operations printing: with organic printing ink, poly-lactic acid products is printed, after being completed for printing, putting it into temperature is the high-temperature cabinet baking more than 180 ℃, and baking finishes take out poly-lactic acid products and pack.
As the further optimization to technique scheme, the described oil circuit of heating is evenly distributed on the work mould.
As the further optimization to technique scheme, step 2. in, the amount that at every turn adds raw material is controlled at produced within 3 hours.
As the further optimization to technique scheme, step 5. in, the time of crystallization is determined according to following mode: surface area is 35 seconds less than 300 square centimeters of crystallization times, 200 square centimeters of times of every increase increase by 10 seconds.
By the PLA product that above technique is manufactured, not only 100% degradation environment protection, and lustrous surface bright-coloured, strong but pliable in texture firmly extremely being difficult for breaks; Stamp has light and firm.
The specific embodiment
The production technology of a kind of PLA (PLA) product, its technological process is:
1. spice is painted: with organic Masterbatch, stir raw material, both determine according to shade at ratio, after stirring, raw material are poured into to vacuum packaging bag, and seal sack, prevent from making moist.
2. reinforced: as by above-mentioned, through the raw material that stirs, to be added to the hopper of injection machine, and to build hopper cover.Each reinforced too much unsuitable, generally be added to production and with interior raw material, got final product in 3 hours.Reinforced pocket must not opened sack.
3. patrix: select the work mould, i.e. injection mold, the inside of this work mould is shaped with the oil circuit of heating.This work mould is arranged on injection machine, then the oil circuit of heating on the work mould is connected with the oil temperature machine by connected pipes, and check whether each joint connects, whether each oil pipe intact, with oil-leakage-prevention.Connected pipes is wherein selected the high-temperature-resistant high-pressure-resistant oil pipe.The oil circuit of heating will be uniformly distributed in the work mould, make to connect the product surface in die cavity after die heater and be heated evenly; Product crystallization in the work mould is even like this, and product surface gloss is bright-coloured, and quality is tough and tensile firmly.
4. temperature adjustment injection moulding: open die heater, and be 100 ℃ ~ 120 ℃ by Temperature Setting, be preferably 110 ℃, after temperature reaches design temperature, open the die heater oil pump, make deep fat enter the oil circuit of heating in the work mould, start injection moulding when work mould temperature to 85 ℃ ~ 100 ℃; Injection moulding injection process and common plastics injection are as good as.
5. crystallization: before completing injection moulding, after namely injection finished, the poly-lactic acid products of moulding was stayed in die cavity and is carried out crystallization, and should keep the matched moulds state this moment, and crystallization time is determined according to the surface area size of product.Concrete definite mode is: surface area is 35 seconds less than 300 square centimeters of crystallization times, and 200 square centimeters of times of every increase increase by 10 seconds.Product depanning to carry out nature cooling after crystallization finishes, put into Turnover Box after cooling.
6. secondary operations printing: with special-purpose organic printing ink, poly-lactic acid products is printed, after being completed for printing, putting it into temperature is the high-temperature cabinet baking more than 180 ℃.Make like this product crystal surface do small destruction, thereby make organic printing ink be attached to more firmly product surface, improve the fastness of printing.Stoving time and the step crystallization time in 5. is identical, and baking finishes to take out poly-lactic acid products.
7. pack: the PLA product surface easily scratches, and during finished product packing, should add inner box or the stronger packing of other protectiveness.Above-mentioned steps 5. in, when semi-finished product transport in Turnover Box, also to note protecting with turnover bag.
By the PLA product that above flow process is produced, not only 100% degradation environment protection, and lustrous surface is bright-coloured, and strong but pliable in texture firmly extremely being difficult for breaks; Stamp has light and firm.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area just can design according to the present invention be made many modifications and variations without creative work.Therefore, all technical staff in the art on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should fall within the scope of protection of the present invention under this invention's idea.
Claims (4)
1. the production technology of a PLA (PLA) product, its technological process is:
1. spice is painted: with described organic Masterbatch, stir raw material, after stirring, raw material is poured into to vacuum packaging bag, and seal sack;
2. reinforced: as by above-mentioned, through the raw material that stirs, to be added to the hopper of injection machine, and to build hopper cover;
3. patrix: select the work mould, the inside of this work mould is shaped with the oil circuit of heating, and this work mould is arranged on injection machine, then the oil circuit of heating on the work mould is connected with the oil temperature machine by connected pipes, and check whether each joint connects, whether each oil pipe intact;
4. temperature adjustment injection moulding: open die heater, and be 100 ℃ ~ 120 ℃ by Temperature Setting, after temperature reaches design temperature, open the die heater oil pump, make deep fat enter the oil circuit of heating in the work mould, start injection moulding when work mould temperature to 85 ℃ ~ 100 ℃;
5. crystallization: before completing injection moulding, after injection finished, the poly-lactic acid products of moulding was stayed in die cavity and is carried out crystallization, and crystallization time determines according to the surface area size of product, and product depanning carry out coolingly after crystallization finishes, then put into Turnover Box;
6. secondary operations printing: with organic printing ink, poly-lactic acid products is printed, after being completed for printing, putting it into temperature is the high-temperature cabinet baking more than 180 ℃, and baking finishes take out poly-lactic acid products and pack.
2. the production technology of PLA according to claim 1 (PLA) product, it is characterized in that: the described oil circuit of heating is evenly distributed on the work mould.
3. the production technology of PLA according to claim 1 (PLA) product is characterized in that: step 2. in, the amount that at every turn adds raw material is controlled at produced within 3 hours.
4. the production technology of PLA according to claim 1 (PLA) product, it is characterized in that: step 5. in, the time of crystallization is determined according to following mode: surface area is 35 seconds less than 300 square centimeters of crystallization times, and 200 square centimeters of times of every increase increase by 10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103027891A CN103395161A (en) | 2013-07-19 | 2013-07-19 | Production technique of polylactic acid (PLA) product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103027891A CN103395161A (en) | 2013-07-19 | 2013-07-19 | Production technique of polylactic acid (PLA) product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103395161A true CN103395161A (en) | 2013-11-20 |
Family
ID=49558980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103027891A Pending CN103395161A (en) | 2013-07-19 | 2013-07-19 | Production technique of polylactic acid (PLA) product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103395161A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775441A (en) * | 2019-10-28 | 2020-02-11 | 深圳市甲古文创意设计有限公司 | Novel packaging lining and processing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357506A (en) * | 2008-05-29 | 2009-02-04 | 郭军 | Production process and equipment of polylactic acid (PLA) sheet |
| CN101360598A (en) * | 2006-09-13 | 2009-02-04 | 松下电器产业株式会社 | Molding method of polylactic resin |
| CN101791856A (en) * | 2010-02-10 | 2010-08-04 | 郭军 | Production process and device of polylactic acid PLA thermoformed product |
-
2013
- 2013-07-19 CN CN2013103027891A patent/CN103395161A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360598A (en) * | 2006-09-13 | 2009-02-04 | 松下电器产业株式会社 | Molding method of polylactic resin |
| CN101357506A (en) * | 2008-05-29 | 2009-02-04 | 郭军 | Production process and equipment of polylactic acid (PLA) sheet |
| CN101791856A (en) * | 2010-02-10 | 2010-08-04 | 郭军 | Production process and device of polylactic acid PLA thermoformed product |
Non-Patent Citations (1)
| Title |
|---|
| 杨斌: "《绿色塑料聚乳酸》", 30 September 2007, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775441A (en) * | 2019-10-28 | 2020-02-11 | 深圳市甲古文创意设计有限公司 | Novel packaging lining and processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109762313B (en) | Preparation method of high-rate polylactic acid foamed sheet | |
| CN105670251A (en) | Low-temperature thermoplastic material for model products and preparation method of low-temperature thermoplastic material | |
| CN103540050A (en) | PVC (Polyvinyl Chloride) sythetic-wood ecologic indoor gate plate and production method thereof | |
| CN108127938A (en) | Carbon fiber workpieces mandrel airbag integrated forming technique | |
| CN105835300A (en) | High fineness and no-weldlines injection moulding process | |
| CN103662277B (en) | Double-layer polyester bottle and forming process thereof | |
| CN103087487B (en) | Biodegradable resin and preparation method thereof | |
| CN103395161A (en) | Production technique of polylactic acid (PLA) product | |
| CN109130062A (en) | A kind of improved washing machine cover board injection molding process | |
| CN109049478A (en) | A kind of disposable die press technology for forming of rubber product polychrome dual density | |
| CN106903835A (en) | A kind of injection molding process | |
| CN109109259A (en) | A kind of modified air-conditioner housing injection molding process | |
| CN105348570A (en) | Disposable degradable vacuum blood collecting tube and manufacturing method thereof | |
| CN101864126A (en) | Plastic mold and production method thereof | |
| CN104108129B (en) | A kind of processing machine of planting container for plant and processing method thereof | |
| CN103865204A (en) | Preparation method for energy-saving polyvinyl chloride tubular product | |
| CN104109350A (en) | Polyamide modified PET hollow blow-moulded container | |
| CN111070547A (en) | High-efficiency energy-saving plastic part injection molding process | |
| CN105346036A (en) | Multicavity mold injection molding process of PC slender rod | |
| CN104085099A (en) | Method for producing blow molding toy | |
| CN109177262A (en) | A kind of disposable injection molding technique of rubber product two-color dual-density | |
| CN101012321A (en) | Fire resistant latex and preparing method thereof | |
| CN101367270B (en) | Plastic rubber model manufacturing method and product thereof | |
| CN102516731A (en) | Environmentally-friendly model manufacturing method | |
| CN110053212A (en) | To be molded the processing technology that flexible glue replaces crystal ball Poly resin indoor setting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131120 |