CN103951907B - A kind of food stage tablecloth and preparation method thereof - Google Patents
A kind of food stage tablecloth and preparation method thereof Download PDFInfo
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Abstract
A kind of food stage tablecloth of the present invention and preparation method thereof, according to the mass fraction, relative to Corvic 100 parts, containing trioctyl trimellitate (TOTM) 40 60 parts, calcium-zinc composite stabilizing agent 13 parts, processing aids acrylic resin 0.5 2 parts, calcium carbonate consumption 5 15 parts, anhydrous slufuric acid barium 20 40 parts.A kind of food stage tablecloth precipitation high temperature resistant, resistance to of the present invention, solvent resistant migrate, and without aldehydes matters such as phenol, nonyl phenol, octyl phenols, the pH value that can realize product is 7.0, and product is directly in Food Contact, and environmental requirement is strict.The PVC tablecloth developing food stage will be greatly improved the environmental-protecting performance of PVC product, can effectively improve PVC product occupation rate in plastic, will have the most significant social value and economic benefit.
Description
Technical field
The invention belongs to chemical technology field, specifically, relate to a kind of food stage tablecloth and preparation method thereof.
Background technology
Along with expanding economy and the adjustment of the structure of rural undertaking, China's all trades and professions market demand to plastic sheeting
Constantly rise.
The yield of Chinese Plastics thin film accounts for the 20% of plastic total output, is that in plastic increase of production is faster
One of classification.What wherein consumption was maximum is polrvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), poly terephthalic acid second two
The resins such as alcohol ester (PET), polystyrene (PS), ethylene/acetic acid ethylene (EVA), polyamide (PA).Life on plastic film industry
Product method has rolling process and extrusion molding, and wherein extrusion molding is divided into again extrusion blown film, extrusion curtain coating, extrusion stretching (to become also known as secondary
Type) etc., current extrusion molding is most widely used general, and especially for the processing of polyolefin film, and rolling process is mainly used in some and gathers
The production of vinyl chloride film.Chinese Plastics film industry is in a flourish stage, it is reported, Chinese Plastics thin film
Demand every year by with more than 9% speed increment.
Polyvinyl chloride film popular be referred to as (POLYVINYL CHLORIDE FILM), it be Corvic and other
Modifying agent is made through calendering technology or blow molding process.General thickness is 0.08-0.2mm, the title PVC sheet more than 0.25mm,
Polyvinyl chloride film is broadly divided into two classes, and a class is soft pvc film, and another kind of is hard PVC thin film, soft pvc film
It is the consumption of plasticizer with the main distinction of hard PVC thin film, is referred to as when being not added with the consumption of plasticizer or plasticizer less than 10 parts
Hard PVC thin film, is referred to as soft pvc film when plasticizer consumption is more than 10 parts, and the flexibility of soft pvc film is along with plastic
The increase of agent consumption and increase.
The tablecloth, is to be covered on platform, desktop in order to antifouling and increase article attractive in appearance.Also referred to as: tablecloth, it is mainly used in
Furnishings, dinner party, dining.
Plastic table linen is how based on PVC material, and the PVC tablecloth has color and flower pattern is various, multiple finishing wind of easily arranging in pairs or groups
Lattice, are the pretty good selections of soft decoration.This tablecloth bears dirty, and easy cleaning is portable.Service life is long, not fugitive color, fade.PVC
The tablecloth is very popular as far back as American-European countries, in recent years Japan and country in Southeast Asia due to weather hotter, the PVC tablecloth these country
Also begin to popular, also welcome by numerous families because of its cheap and good-quality characteristic in China.But, the PVC tablecloth is to people's people's livelihood
Live and bring bigger environmental protection hidden danger to the mankind while bringing convenience, along with living standards of the people, constantly the carrying of environmental consciousness
Height, the people are more and more higher to the environmental requirement of material, therefore, if the PVC tablecloth that can develop food stage will have very
Significantly social value and wide market, traditional PVC tablecloth great majority contain the nuisance such as phthalate, heavy metal
Matter, brings bigger Environmental Safety hidden danger to the life of the mankind, currently in order to the environmental-protecting performance of PVC film, state can be improved
Inside and outside all (include the plasticizer without phthalate, without heavy metal at some novel environment friendly raw materials of positive exploitation
Stabilizer, PVC powder without Vinyl Chloride Monomer etc.).
The existing PVC food tablecloth has the disadvantage in that
1. migrate detection data fluctuations relatively big comprehensively, be easier to the ultimate value beyond standard；
The more difficult control of pH value of the 2.PVC food tablecloth；
3. as the food standard test request of various countries is not wanted, such as Germany's LFGB food standard and U.S. FDA food standard
Testing requirement difference is the biggest.
It causes reason:
1. the impact of resting period, because the PVC food tablecloth is through being rolled into by raw materials such as PVC, plasticizer, stabilizers
Type, any product containing plasticizer all can have a small amount of precipitation after putting for a long time；
2. the impact of ambient temperature, needs after PVC food tablecloth calendering formation finished product to be exported to abroad, in transportation
The temperature of container is higher, typically has 60 DEG C～80 DEG C, and temperature is the highest, and intermolecular irregular movement is the fiercest, intermolecular work
The biggest, cause PVC food tablecloth film surface easily to separate out, thus impact migrates testing result comprehensively；
3.PVC product fill great majority use cheap, decentralized good, impurity is few calcium carbonate as filler,
But the food stage tablecloth requires that pH value is neutral 7.0, and the pH value of calcium carbonate is alkalescence.
Summary of the invention
Instant invention overcomes shortcoming of the prior art, it is provided that a kind of food stage tablecloth, meet Germany's LFGB food mark
The alimentary codexs such as standard, U.S. FDA food standard, without phthalate, without cadmium, chromium, lead, hydrargyrum heavy metal, meet European Union
Low phenol standard, pH value is 7.0, Vinyl Chloride Monomer (VCM) ＜ 5ppm, and precipitation high temperature resistant, resistance to, solvent resistant migrate.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of food stage tablecloth, according to the mass fraction, relative to Corvic 100 parts, pungent containing tri trimellitate
Ester 40-60 part, calcium-zinc composite stabilizing agent 1-3 part, processing aids acrylic resin 0.5-2 part, calcium carbonate consumption 5-15 part is anhydrous
Barium sulfate 20-40 part.
Further, according to the mass fraction, relative to Corvic 100 parts, containing trioctyl trimellitate (TOTM) 50 parts, calcium
Zinc composite stabilizer 2 parts, processing aids acrylic resin 1 part, calcium carbonate consumption 10 parts, anhydrous slufuric acid barium 30 parts
Further, described Corvic is SG-5 type polyvinyl chloride resin, and the degree of polymerization is 1000.
Method is put in the preparation of a kind of food stage tablecloth, and it comprises the following steps:
A. the raw material of said ratio enters mixer, first measures Corvic, to measure Ca Zn composite more steady
Determine agent, calcium carbonate and anhydrous slufuric acid barium, processing aids acrylic resin, finally measure trioctyl trimellitate (TOTM), first mixed on low speed
Within 10 seconds, entering back into mixed at high speed, the mixed at high speed time is about 4 minutes, is sufficiently mixed under high velocity agitation, it is thus achieved that mixture；
B. the mixture discharge mixed ten thousand horsepowers of machines of entrance are tentatively plastified, it is thus achieved that the fused mass of preliminary plasticizing
Material；
C. the fused materials of preliminary plasticizing enters first to roll turbine, second rolls turbine and fully plastify and filter through filter, squeezes
Go out to obtain and plastify uniform cylindrical molten material；
D. the plasticizing uniform cylindrical molten material extruded through calendering main frame roller calendering formation, then through draw take, embossing, cold
But coiling process, finally obtains polrvinyl chloride food stage tablecloth finished product.
Further, described mixed on low speed speed is 700～750rpm/min, and mixed at high speed speed is 1400～1440rpm/
min。
Compared with prior art, the invention has the beneficial effects as follows:
A kind of food stage tablecloth precipitation high temperature resistant, resistance to of the present invention, solvent resistant migrate, without phenol, nonyl phenol, pungent
The aldehydes matters such as base phenol, the pH value that can realize product is 7.0, and product is directly in Food Contact, and environmental requirement is strict.
The PVC tablecloth developing food stage will be greatly improved the environmental-protecting performance of PVC product, can effectively improve PVC product
Occupation rate in plastic, will have the most significant social value and economic benefit.
Accompanying drawing explanation
Accompanying drawing is used for providing a further understanding of the present invention, is used for together with embodiments of the present invention explaining the present invention,
It is not intended that limitation of the present invention, in the accompanying drawings:
Fig. 1 is the process chart of a kind of food stage tablecloth of the present invention.
In figure, 1 mixer；20000 horsepowers of machines；
3 first roll turbine；4 second roll turbine；
5 filters；6 calendering main frames.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred reality described herein
Execute example be merely to illustrate and explain the present invention, be not intended to limit the present invention.
A kind of food stage tablecloth of the present invention, according to the mass fraction, relative to Corvic 100 parts, contains
Trioctyl trimellitate (TOTM) 50 parts, calcium-zinc composite stabilizing agent 2 parts, processing aids acrylic resin 1 part, calcium carbonate consumption 10 parts, nothing
30 parts of water barium sulfate
Corvic is SG-5 type polyvinyl chloride resin, and the degree of polymerization is 1000.
Mixed on low speed speed is 700～750rpm/min, and mixed at high speed speed is 1400～1440rpm/min,
High temperature resistant environment-protective plasticizer trioctyl trimellitate (TOTM) (TOTM) as plasticizer, this type of plasticizer have high temperature resistant,
The features such as resistance to precipitation, solvent resistant migration, the phthalate limited without European Union, and meet Germany's LFGB food standard
DEHTP migrates the content environmental protection standard less than 60mg/kg.
Environmental protection calcium-zinc composite stabilizing agent, calcium zinc stabilizer and traditional lead salt stabilizer, cadmium barium zinc stabilizer, barium zinc are stable
The heavy metal that the countries such as America and Europe such as having the advantage that the most leaded, cadmium are compared in agent, territorial restrictions use, calcium-zinc composite stabilizing agent
Do not add any antioxidant, have without aldehydes matters such as phenol, nonyl phenol, octyl phenols compared with liquid barium zinc stabilizer,
Complying fully with country, the low phenol requirements of area food standard such as outlet America and Europe, powder body calcium zinc stabilizer does not contains solvent, does not interferes with
Environmental protection standard migrate test comprehensively.
Present invention uses powder barium sulfate and use the method as filler with calcium carbonate collocation, it is achieved thereby that product
PH is the technology requirement of neutral 7.0, the PVC food stage tablecloth often with enter in human body after Food Contact, in order to give
In human body, acid or alkali environment impacts, thus affects health, therefore it is required that the tablecloth PH of food stage be neutral 7.0 because of, pass
The filler calcium carbonate PH of system is alkalescence, in order to make product P H for neutrality, needs to select acid filler to be neutralized, collocation
Using, powder barium sulfate PH is acid, and has the fine compatibility, dispersibility with PVC, and therefore barium sulfate makes with calcium carbonate collocation
Reach neutral with product can be made.
Product of the present invention is mainly used in exporting the area such as European Union, the U.S., needs and Food Contact, it is therefore desirable to reach various places
District, the food environmental regulation of country, such as German LFGB food standard, U.S. FDA food standard etc..
Refering to Fig. 1, method is put in the preparation of a kind of food stage tablecloth, and it comprises the following steps:
A, the raw material of said ratio enter mixer 1, first measure Corvic, to measure Ca Zn composite more steady
Determine agent, calcium carbonate and anhydrous slufuric acid barium, processing aids acrylic resin, finally measure trioctyl trimellitate (TOTM), prevent liquids
Matter first measures resistance when increasing mixing, causes mixing uneven, answers mixing limit, limit measure during metering, and elder generation's mixed on low speed 10 seconds is again
Enter mixed at high speed, the mixed at high speed time is about 4 minutes, is sufficiently mixed under high velocity agitation, mixed on low speed speed be 700～
750rpm/min, mixed at high speed speed is 1400～1440rpm/min, it is thus achieved that mixture；
B, the mixture discharge mixed ten thousand horsepowers of machines 2 of entrance are tentatively plastified, it is thus achieved that the fused mass of preliminary plasticizing
Material；
C, the fused materials of preliminary plasticizing enter first to roll turbine 3, second roll turbine 4 and fully plastify and filter through filter 5,
Extrusion obtains and plastifies uniform cylindrical molten material；
D, extrusion plasticizing uniform cylindrical molten material through calendering main frame 4 roller or 5 roller calendering formations, then through draw take,
Embossing, cooling coiling process, finally obtain polrvinyl chloride food stage tablecloth finished product.
Finally it is noted that these are only the preferred embodiments of the present invention, it is not limited to the present invention, although
Being described in detail the present invention with reference to embodiment, for a person skilled in the art, it still can be to aforementioned
Technical scheme described in each embodiment is modified, or wherein portion of techniques feature carries out equivalent, but all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the protection of the present invention
Within the scope of.
Claims (3)
1. the preparation method of a food stage tablecloth, it is characterised in that: the food stage tablecloth according to the mass fraction, relative to polychlorostyrene second
Olefine resin 100 parts, containing trioctyl trimellitate (TOTM) 50 parts, calcium-zinc composite stabilizing agent 2 parts, processing aids acrylic resin 1 part, carbon
Acid calcium 10 parts, anhydrous slufuric acid barium 30 parts；
Preparation method comprises the following steps:
A. said ratio raw material enter mixer, first measure Corvic, the most again measure calcium-zinc composite stabilizing agent,
Calcium carbonate and anhydrous slufuric acid barium, processing aids acrylic resin, finally measure trioctyl trimellitate (TOTM), and first mixed on low speed 10 seconds is again
Entering mixed at high speed, the mixed at high speed time is 4 minutes, is sufficiently mixed under high velocity agitation, it is thus achieved that mixture；
B. the mixture discharge mixed ten thousand horsepowers of machines of entrance are tentatively plastified, it is thus achieved that the fused materials of preliminary plasticizing；
C. the fused materials of preliminary plasticizing enters first to roll turbine, second rolls turbine and fully plastify and filter through filter, and extrusion obtains
Uniform cylindrical molten material must be plastified；
D. the plasticizing uniform cylindrical molten material extruded through calendering main frame roller calendering formation, then through draw take, embossing, cooling volume
Take operation, finally obtain polrvinyl chloride food stage tablecloth finished product.
The preparation method of a kind of food stage tablecloth the most according to claim 1, it is characterised in that: described Corvic
For SG-5 type polyvinyl chloride resin, the degree of polymerization is 1000.
A kind of preparation method of the food stage tablecloth, it is characterised in that: described mixed on low speed speed is
700～750rpm, mixed at high speed speed is 1400～1440rpm.
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| CN201410150907.6A CN103951907B (en) | 2014-04-15 | 2014-04-15 | A kind of food stage tablecloth and preparation method thereof |
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| CN201410150907.6A CN103951907B (en) | 2014-04-15 | 2014-04-15 | A kind of food stage tablecloth and preparation method thereof |
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| CN103951907A CN103951907A (en) | 2014-07-30 |
| CN103951907B true CN103951907B (en) | 2016-10-05 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105125014A (en) * | 2015-09-18 | 2015-12-09 | 苏州新区佳合塑胶有限公司 | Antibacterial plastic table cloth and production technology thereof |
| CN105131467A (en) * | 2015-09-18 | 2015-12-09 | 苏州新区佳合塑胶有限公司 | Fragrant plastic table cover and production technology thereof |
| CN107501790B (en) * | 2017-08-29 | 2020-04-03 | 广东天安新材料股份有限公司 | PVC film and preparation method thereof |
| CN107890254A (en) * | 2017-10-23 | 2018-04-10 | 东莞市悠悠美居家居制造有限公司 | A kind of super print through flower crystal spills gold stand cloth and its double attaching process |
| CN108081507A (en) * | 2017-12-21 | 2018-05-29 | 马鞍山金姿纺织装饰用品有限公司 | A kind of antibiotic plastic tablecloth manufacturing method |
| CN108752776A (en) * | 2018-04-03 | 2018-11-06 | 佛山市高明汉臣塑胶有限公司 | A kind of antibacterial tablecloth and its production technology |
| CN108928078A (en) * | 2018-04-03 | 2018-12-04 | 佛山市高明汉臣塑胶有限公司 | A kind of tablecloth and its production technology |
| CN111393762A (en) * | 2019-05-16 | 2020-07-10 | 佛山市鑫宏美装饰材料有限公司 | Food-grade polyvinyl chloride composite tablecloth and production process thereof |
| CN110713680A (en) * | 2019-11-28 | 2020-01-21 | 雄县茂森塑胶制品有限公司 | Formula of nontoxic and odorless PVC (polyvinyl chloride) crystal plate and manufacturing method thereof |
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| CN103497446A (en) * | 2013-09-25 | 2014-01-08 | 天津市天塑科技集团有限公司第四塑料制品厂 | Environmental-friendly polyvinyl chloride (PVC) extraction-resistant anti-seepage film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0176286B1 (en) * | 1995-06-12 | 1999-05-15 | 이종학 | Method of manufacturing agricultural pvc tubural film |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140212A (en) * | 2011-04-07 | 2011-08-03 | 浙江盛丰塑胶有限公司 | Production process of semi-rigid polyvinyl chloride portrait calendered film |
| CN103289250A (en) * | 2013-06-24 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | Safe non-toxic PVC film and preparation method thereof |
| CN103497446A (en) * | 2013-09-25 | 2014-01-08 | 天津市天塑科技集团有限公司第四塑料制品厂 | Environmental-friendly polyvinyl chloride (PVC) extraction-resistant anti-seepage film and preparation method thereof |
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Address after: 528315 Guangdong Foshan Shunde District Lecong Town, good village industrial zone Patentee after: Guangdong Guan Sheng new material Co., Ltd. Address before: 528315 Guangdong Foshan Shunde District Lecong Town, good village industrial zone Patentee before: Guangdong Guansheng Plastics Co.,Ltd. |
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Denomination of invention: The invention relates to a food grade tablecloth and a preparation method thereof Effective date of registration: 20210222 Granted publication date: 20161005 Pledgee: Agricultural Bank of China Limited Shunde Lecong sub branch Pledgor: GUANGDONG GUANSHENG NEW MATERIAL Co.,Ltd. Registration number: Y2021980001253 |
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Address after: 528315 Guangdong Foshan Shunde District Lecong Town, good village industrial zone Patentee after: Guangdong Guansheng New Material Co.,Ltd. Address before: 528315 Guangdong Foshan Shunde District Lecong Town, good village industrial zone Patentee before: GUANGDONG GUANSHENG NEW MATERIAL Co.,Ltd. |