CN103737936A - Preparation method for plastic film having fragrance - Google Patents
Preparation method for plastic film having fragrance Download PDFInfo
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- CN103737936A CN103737936A CN201310610406.7A CN201310610406A CN103737936A CN 103737936 A CN103737936 A CN 103737936A CN 201310610406 A CN201310610406 A CN 201310610406A CN 103737936 A CN103737936 A CN 103737936A
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- China
- Prior art keywords
- preparation
- film
- layer
- intermediate layer
- dulcet
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a preparation method for a plastic film having fragrance. The preparation method comprises: a) preparing a surface layer, b) preparing a middle layer, c) selecting and preparing an inner layer, d) carrying out an adhesion treatment on the film layer, and e) carrying out a film post-treatment. The present invention discloses the preparation method for the plastic film having fragrance, wherein the preparation method has characteristics of reasonable step arrangement, simple operation and moderate cost, the prepared film has characteristics of high interlayer bonding strength and excellent use performance, fragrance particles emitted by the middle layer of the film can penetrate through the surface layer and be outward released, and the inner layer provides good fragrance particle barrier capability, such that the plastic film is safe and reliable in food packaging.
Description
Technical field
The present invention relates to a kind of preparation method of plastic sheeting, relate in particular to the preparation method of the dulcet plastic sheeting of a kind of tool, belong to plastic products technology field.
Background technology
Plastic sheeting is made by polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, is mainly used in packing and is used as coating layer.Plastics package and plastic packet product shared share on market is increasing, particularly composite plastic flexible package, the fields such as food, medicine, chemical industry have been widely used in, wherein again with packaging for foodstuff proportion maximum, such as beverage packaging, quick-frozen food packing, cooking food packing, fast food packing etc., these products all bring great convenience to people's life.
In order further to improve the performance of plastic sheeting, people have developed laminated film technology.Existing composite plastic film tool has the following advantages: good heat sealability, mechanical performance, air-tightness, moisture resistance, heat resistance, cold resistance, antiultraviolet permeability etc., and preparation cost is moderate.But, along with the raising day by day of people's living standard, practicality and functional have higher requirement of people to plastic sheeting.
Summary of the invention
For the demand, the invention provides the preparation method of the dulcet plastic sheeting of a kind of tool, this preparation method's procedure arrangement is reasonable, easy and simple to handle, the film interfacial bonding strength making is high, and in use, the penetrable top layer of fragrance particle that distribute in its intermediate layer outwards discharges, and nexine has good obstructing capacity to fragrance particle, more safe and reliable when this plastic sheeting is used as food casing.
The present invention is the preparation method of the dulcet plastic sheeting of a kind of tool, and this preparation method comprises the steps: a) to prepare top layer, b) prepares intermediate layer, c) the standby nexine of choosing, the d) adhesion process of thin layer, e) film post processing.
In a preferred embodiment of the present invention, in described step a), the main component on top layer is vistanex and calcium carbonate microparticle, and mass percent is 55%-60%:40%-45%; Top layer adopts curtain coating pressure roller method to be prepared, and first, raw material is extruded heat mixing in extruder after; Then, prolong to press and process, auxiliary equipment is air knife, makes the sheet material that thickness is about 0.2mm; Finally, sheet material is carried out to longitudinal and oblique stretch processing, make the surface layer film that thickness is about 0.07-0.08mm.
In a preferred embodiment of the present invention, in described step b), the main component in intermediate layer and percentage composition proportioning thereof are: polyvinyl chloride master batch 70%-75%, flavored capsules 15%-20%, and all the other are auxiliary agent; Intermediate layer adopts extrusioning blowing process to be prepared, operation comprises: batch mixing, extrude, blowing, cooling, trimming and rolling, equipment choosing level is extruded inflation film manufacturing machine, the extrusion temperature of raw material is controlled at 165 ℃-175 ℃, blown film atmospheric pressure is controlled at 8-10Kg/ cubic meter, and the intermediate layer thickness after rolling moulding is about 0.1-0.12mm.
In a preferred embodiment of the present invention, in described step c), nexine is selected polyethylene film, and thickness is about 0.08-0.1mm.
In a preferred embodiment of the present invention, in described step d), adhesive is selected two component polyurethane adhesive, and adhesion process is as follows: first, bonding top layer and intermediate layer, adhesive is sprayed on interlayer surfaces, and glue layer THICKNESS CONTROL is at 0.01-0.012mm; Then, bonding intermediate layer and nexine, adhesive is sprayed on nexine surface, and glue layer THICKNESS CONTROL is at 0.02-0.025mm; Finally, the film after bonding is carried out on hot-pressing roller equipment to thermal finalization processing, hot-pressing roller temperature is controlled at 50 ℃-55 ℃, and the film thickness after cooling forming is about 0.2-0.24mm.
In a preferred embodiment of the present invention, in described step e), aftertreatment technology comprises trimming, curling and Ageing Treatment, and Ageing Treatment is carried out in 20 ℃ of-25 ℃ of greenhouses, and the processing time is about 5-8 hour.
The present invention has disclosed the preparation method of the dulcet plastic sheeting of a kind of tool, this preparation method's procedure arrangement is reasonable, easy and simple to handle, cost is moderate, the film interfacial bonding strength making is high, and serviceability is good, and the penetrable top layer of fragrance particle that distribute in the intermediate layer of film outwards discharges, and nexine has good obstructing capacity to fragrance particle, make more safe and reliable of this plastic sheeting when packaged food.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the preparation method's of the dulcet plastic sheeting of embodiment of the present invention tool process figure.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Fig. 1 is the preparation method's of the dulcet plastic sheeting of embodiment of the present invention tool process figure; This preparation method comprises the steps: a) to prepare top layer, b) prepares intermediate layer, c) the standby nexine of choosing, the d) adhesion process of thin layer, e) film post processing.
Embodiment 1
The preparation method's of the dulcet plastic sheeting of tool that the present invention mentions concrete preparation process is as follows:
A) prepare top layer, the main component on top layer is vistanex and calcium carbonate microparticle, and mass percent is 55%:45%, and the granularity of calcium carbonate is about 600 orders; Top layer adopts curtain coating pressure roller method to be prepared, and first, raw material is extruded heat mixing in extruder after, and mixture temperature is controlled at 60 ℃-65 ℃; Then, prolong to press and process, pressure roller roller speed control is built in 7.5-7.6m/min, auxiliary equipment is air knife, and the distance of air knife and pressure roller is about 3mm, and air knife opening is 2mm, gas flow temperature is controlled at 20 ℃-22 ℃, and pressure is 0.4-0.45MPa, makes the sheet material that thickness is about 0.2mm; Finally, sheet material is carried out to longitudinal and oblique stretch processing, make the surface layer film that thickness is about 0.075-0.08mm; Top layer has unique microcellular structure, and permeability is outstanding, and has good water resistance;
B) prepare intermediate layer, the main component in intermediate layer and percentage composition proportioning thereof are: polyvinyl chloride master batch 70%, flavored capsules 20%, and all the other are auxiliary agent; Wherein, the particle diameter of flavored capsules is about 8um, and core, capsule, than being 1:6, are natural plants essence in capsule-core, and cyst wall material is polypropylene; Auxiliary agent comprises levelling agent, plasticizer, stabilizing agent and antioxidant etc.; Intermediate layer adopts extrusioning blowing process to be prepared, operation comprises: batch mixing, extrude, blowing, cooling, trimming and rolling, equipment choosing level is extruded inflation film manufacturing machine, the extrusion temperature of raw material is controlled at 165 ℃-170 ℃, blown film atmospheric pressure is controlled at 8Kg/ cubic meter, temperature is 60 ℃, and the intermediate layer thickness after rolling moulding is about 0.1-0.12mm;
C) the standby nexine of choosing, nexine is selected polyethylene film, and thickness is about 0.08-0.1mm;
D) adhesion process of thin layer, adhesive is selected two component polyurethane adhesive, and adhesion process is as follows: first, and bonding top layer and intermediate layer, adhesive is sprayed on interlayer surfaces, and glue layer THICKNESS CONTROL is in 0.01mm left and right; Then, bonding intermediate layer and nexine, adhesive is sprayed on nexine surface, and glue layer THICKNESS CONTROL is in 0.02mm left and right; Finally, the film after bonding is carried out on hot-pressing roller equipment to thermal finalization processing, hot-pressing roller temperature is controlled at 50 ℃-52 ℃, and roller speed is 4-4.2m/min, and the film thickness after cooling forming is about 0.2-0.22mm;
E) film post processing, aftertreatment technology comprises trimming, curling and Ageing Treatment, and Ageing Treatment is carried out in 20 ℃ of-25 ℃ of greenhouses, and the processing time is about 5-7 hour.
Embodiment 2
The preparation method's of the dulcet plastic sheeting of tool that the present invention mentions concrete preparation process is as follows:
A) prepare top layer, the main component on top layer is vistanex and calcium carbonate microparticle, and mass percent is 60%:40%, and the granularity of calcium carbonate is about 600 orders; Top layer adopts curtain coating pressure roller method to be prepared, and first, raw material is extruded heat mixing in extruder after, and mixture temperature is controlled at 65 ℃-70 ℃; Then, prolong to press and process, pressure roller roller speed control is built in 7.7-7.8m/min, auxiliary equipment is air knife, and the distance of air knife and pressure roller is about 3.2mm, and air knife opening is 2mm, gas flow temperature is controlled at 22 ℃-24 ℃, and pressure is 0.45-0.5MPa, makes the sheet material that thickness is about 0.2mm; Finally, sheet material is carried out to longitudinal and oblique stretch processing, make the surface layer film that thickness is about 0.07-0.075mm; Top layer has unique microcellular structure, and permeability is outstanding, and has good water resistance;
B) prepare intermediate layer, the main component in intermediate layer and percentage composition proportioning thereof are: polyvinyl chloride master batch 75%, flavored capsules 15%, and all the other are auxiliary agent; Wherein, the particle diameter of flavored capsules is about 9um, and core, capsule, than being 1:6, are natural plants essence in capsule-core, and cyst wall material is polypropylene; Auxiliary agent comprises levelling agent, plasticizer, stabilizing agent and antioxidant etc.; Intermediate layer adopts extrusioning blowing process to be prepared, operation comprises: batch mixing, extrude, blowing, cooling, trimming and rolling, equipment choosing level is extruded inflation film manufacturing machine, the extrusion temperature of raw material is controlled at 170 ℃-175 ℃, blown film atmospheric pressure is controlled at 10Kg/ cubic meter, temperature is 65 ℃, and the intermediate layer thickness after rolling moulding is about 0.1-0.12mm;
C) the standby nexine of choosing, nexine is selected polyethylene film, and thickness is about 0.08-0.1mm;
D) adhesion process of thin layer, adhesive is selected two component polyurethane adhesive, and adhesion process is as follows: first, and bonding top layer and intermediate layer, adhesive is sprayed on interlayer surfaces, and glue layer THICKNESS CONTROL is in 0.012mm left and right; Then, bonding intermediate layer and nexine, adhesive is sprayed on nexine surface, and glue layer THICKNESS CONTROL is in 0.025mm left and right; Finally, the film after bonding is carried out on hot-pressing roller equipment to thermal finalization processing, hot-pressing roller temperature is controlled at 52 ℃-55 ℃, and roller speed is 4.2-4.5m/min, and the film thickness after cooling forming is about 0.22-0.24mm;
E) film post processing, aftertreatment technology comprises trimming, curling and Ageing Treatment, and Ageing Treatment is carried out in 20 ℃ of-25 ℃ of greenhouses, and the processing time is about 6-8 hour.
The present invention has disclosed the preparation method of the dulcet plastic sheeting of a kind of tool, be characterized in: this preparation method's procedure arrangement is reasonable, easy and simple to handle, cost is moderate, the film interfacial bonding strength making is high, and serviceability is good, and the penetrable top layer of fragrance particle that distribute in the intermediate layer of film outwards discharges, and nexine has good obstructing capacity to fragrance particle, make more safe and reliable of this plastic sheeting when packaged food.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (6)
1. a preparation method for the dulcet plastic sheeting of tool, is characterized in that, this preparation method comprises the steps: a) to prepare top layer, b) prepares intermediate layer, c) the standby nexine of choosing, the d) adhesion process of thin layer, e) film post processing.
2. the preparation method of the dulcet plastic sheeting of tool according to claim 1, is characterized in that, in described step a), the main component on top layer is vistanex and calcium carbonate microparticle, and mass percent is 55%-60%:40%-45%; Top layer adopts curtain coating pressure roller method to be prepared, and first, raw material is extruded heat mixing in extruder after; Then, prolong to press and process, auxiliary equipment is air knife, makes the sheet material that thickness is about 0.2mm; Finally, sheet material is carried out to longitudinal and oblique stretch processing, make the surface layer film that thickness is about 0.07-0.08mm.
3. the preparation method of the dulcet plastic sheeting of tool according to claim 1, it is characterized in that, in described step b), the main component in intermediate layer and percentage composition proportioning thereof are: polyvinyl chloride master batch 70%-75%, flavored capsules 15%-20%, and all the other are auxiliary agent; Intermediate layer adopts extrusioning blowing process to be prepared, operation comprises: batch mixing, extrude, blowing, cooling, trimming and rolling, equipment choosing level is extruded inflation film manufacturing machine, the extrusion temperature of raw material is controlled at 165 ℃-175 ℃, blown film atmospheric pressure is controlled at 8-10Kg/ cubic meter, and the intermediate layer thickness after rolling moulding is about 0.1-0.12mm.
4. the preparation method of the dulcet plastic sheeting of tool according to claim 1, is characterized in that, in described step c), nexine is selected polyethylene film, and thickness is about 0.08-0.1mm.
5. the preparation method of the dulcet plastic sheeting of tool according to claim 1, it is characterized in that, in described step d), adhesive is selected two component polyurethane adhesive, adhesion process is as follows: first, bonding top layer and intermediate layer, adhesive is sprayed on interlayer surfaces, and glue layer THICKNESS CONTROL is at 0.01-0.012mm; Then, bonding intermediate layer and nexine, adhesive is sprayed on nexine surface, and glue layer THICKNESS CONTROL is at 0.02-0.025mm; Finally, the film after bonding is carried out on hot-pressing roller equipment to thermal finalization processing, hot-pressing roller temperature is controlled at 50 ℃-55 ℃, and the film thickness after cooling forming is about 0.2-0.24mm.
6. the preparation method of the dulcet plastic sheeting of tool according to claim 1, it is characterized in that, in described step e), aftertreatment technology comprises trimming, curling and Ageing Treatment, Ageing Treatment is carried out in 20 ℃ of-25 ℃ of greenhouses, and the processing time is about 5-8 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310610406.7A CN103737936A (en) | 2013-11-27 | 2013-11-27 | Preparation method for plastic film having fragrance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310610406.7A CN103737936A (en) | 2013-11-27 | 2013-11-27 | Preparation method for plastic film having fragrance |
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| CN103737936A true CN103737936A (en) | 2014-04-23 |
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| CN201310610406.7A Pending CN103737936A (en) | 2013-11-27 | 2013-11-27 | Preparation method for plastic film having fragrance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752461A (en) * | 2016-05-04 | 2016-07-13 | 太仓市国宏服饰有限公司 | Packaging bag with flavour |
| CN110281629A (en) * | 2019-07-26 | 2019-09-27 | 四川汇利实业有限公司 | Composite packaging membrane preparation method for drug |
| CN110328949A (en) * | 2019-07-26 | 2019-10-15 | 四川汇利实业有限公司 | A kind of drug composite package film |
| CN111516250A (en) * | 2020-04-30 | 2020-08-11 | 辛集市旭远新材料科技有限公司 | Composite plastic film blowing machine and preparation method thereof |
| CN114796094A (en) * | 2022-04-28 | 2022-07-29 | 重庆菩璞生物科技有限公司 | Golden fragrant willow sachet and preparation method thereof |
-
2013
- 2013-11-27 CN CN201310610406.7A patent/CN103737936A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752461A (en) * | 2016-05-04 | 2016-07-13 | 太仓市国宏服饰有限公司 | Packaging bag with flavour |
| CN110281629A (en) * | 2019-07-26 | 2019-09-27 | 四川汇利实业有限公司 | Composite packaging membrane preparation method for drug |
| CN110328949A (en) * | 2019-07-26 | 2019-10-15 | 四川汇利实业有限公司 | A kind of drug composite package film |
| CN111516250A (en) * | 2020-04-30 | 2020-08-11 | 辛集市旭远新材料科技有限公司 | Composite plastic film blowing machine and preparation method thereof |
| CN114796094A (en) * | 2022-04-28 | 2022-07-29 | 重庆菩璞生物科技有限公司 | Golden fragrant willow sachet and preparation method thereof |
| CN114796094B (en) * | 2022-04-28 | 2024-01-23 | 重庆菩璞生物科技有限公司 | Gold aroma Liu Xiangnang and preparation method thereof |
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Application publication date: 20140423 |