CN102167212A - Antibacterial polyether type TPU (thermoplastic polyurethanes) conveying belt for conveying fresh products and production method thereof - Google Patents
Antibacterial polyether type TPU (thermoplastic polyurethanes) conveying belt for conveying fresh products and production method thereof Download PDFInfo
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- CN102167212A CN102167212A CN2011100643375A CN201110064337A CN102167212A CN 102167212 A CN102167212 A CN 102167212A CN 2011100643375 A CN2011100643375 A CN 2011100643375A CN 201110064337 A CN201110064337 A CN 201110064337A CN 102167212 A CN102167212 A CN 102167212A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 230000000844 anti-bacterial effect Effects 0.000 title abstract description 10
- 229920000570 polyether Polymers 0.000 title abstract description 7
- 239000004433 Thermoplastic polyurethane Substances 0.000 title abstract 10
- 229920002803 thermoplastic polyurethane Polymers 0.000 title abstract 10
- 239000004721 Polyphenylene oxide Substances 0.000 title abstract 5
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000002344 surface layer Substances 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 12
- 238000003490 calendering Methods 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 230000003115 biocidal effect Effects 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 32
- 238000012546 transfer Methods 0.000 claims description 30
- 235000013305 food Nutrition 0.000 claims description 19
- 239000004599 antimicrobial Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- 239000004595 color masterbatch Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229920004934 Dacron® Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract 7
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 239000003242 anti bacterial agent Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 244000005700 microbiome Species 0.000 abstract 1
- 230000002421 anti-septic effect Effects 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241000588724 Escherichia coli Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 241000187747 Streptomyces Species 0.000 description 1
- 239000012296 anti-solvent Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000019833 protease Nutrition 0.000 description 1
- 235000020995 raw meat Nutrition 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to an antibacterial polyether type TPU (thermoplastic polyurethanes) conveying belt for conveying fresh products and a production method thereof. The conveying belt is of a double-fabric and double-glue structure, and comprises an antibacterial polyether type TPU surface layer, a fabric, a common TPU gluing layer and a fabric sequentially from top to bottom; and an nano-silver antibacterial agent is added into the matrix material of the antibacterial polyether type TPU surface layer, and accounts for 1-1.5% of the weight of polyether type TPU in the surface layer. The production method comprises the following steps: preparing the antibacterial matrix material and a common matrix material; and finally jointing an antibacterial matrix material glue surface and a common matrix material TPU layer together through far infrared heating to form the double-fabric and double-glue structure, wherein during the jointing, the temperature of the antibacterial matrix material glue surface ranges from 140 DEG C to 150 DEG C, and the temperature of the common matrix material TPU surface ranges from 180 DEG C to 190 DEG C. The invention has the advantages that the conveying belt has the antibacterial function, the conveyed fresh products are prevented from being polluted, the conveying belt is manufactured by an extrusion calendaring technology, no micro defect exists on the surface of a product, the compactness of the product surface is improved, microorganisms are hard to adhere, and the cleaning is easier.
Description
Technical field
The invention belongs to polyether-type TPU load-transfer device field, especially a kind of fresh food is carried with antibiotic polyether-type TPU load-transfer device and manufacture method thereof.
Background technology
The TPU(TPUE) be a kind of emerging High molecular material, have premium properties such as high resiliency, higher Young's modulus, good flexibility and wear-resisting, weather-proof, oil resistant ester, anti-solvent, environmental protection, application is quite extensive.Particularly its good oil resistant ester, environmental protection, meet performances such as FDA standard and determined its widespread use in food service industry.
The TPU material generally is divided into two kinds of polyester-type and polyether-types by molecular structure, and conventional polyester type TPU material is used in present domestic load-transfer device field mostly.The block construction of polyester-type TPU open chain can allow air therefrom to walk, because this molecular structure characteristics cause its attack to germ responsive especially, thereby cause the spore (for example rod bacterium and streptomyces) of soil, dust and fungi and bacterium to deposit therein.The combination of soil and oxygen provides condition in the growth of material surface for germ, so polyester-type TPU is than the easier generation biodegradation of polyether-type TPU material.
Fresh food (such as vegetables and fruits cleaning, raw meat conveying etc.) in the processing course of conveying inevitably can be introduced various germs and hydrone, and present employed conventional polyester type TPU load-transfer device can not satisfy client's actual demand far away aspect sanitation and hygiene and the hydrolysis.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of fresh food to carry with antibiotic polyether-type TPU load-transfer device, selects for use polyether-type TPU as base material, and adds antiseptic, thereby satisfies the requirement of fresh food processing industry.
The present invention solves the problems of the technologies described above another technical matters to be solved and is to provide the preparation method of above-mentioned fresh food conveying with antibiotic polyether-type TPU load-transfer device.
The present invention solves the problems of the technologies described above the technical scheme of being taked: a kind of fresh food is carried with antibiotic polyether-type TPU load-transfer device, be two cloth, two plastic structures, described polyethers TPU load-transfer device comprises from top to bottom successively: antibiotic polyether-type TPU surface layer, fabric, general T PU laminating layer and fabric, wherein, in the described antibiotic polyether-type TPU surface layer, in basis material polyether-type TPU, add nano silver antimicrobials.
It is base material that the present invention adopts polyether-type TPU, simultaneously this base material is added nano silver antimicrobials it is carried out modification, makes it have antibiotic property.
Traditional antiseptic scarcely meets the requirement of FDA, but nano silver antimicrobials is different from traditional antiseptic, is the antiseptic of a kind of safety, environmental protection, and its antibiotic mechanism is:
1, Yin chemical constitution has determined silver to have higher catalytic capability, and the silver-colored reduction potential of high oxidation state is high, is enough to make surrounding space to produce atom oxygen, and atom oxygen has strong oxidizing property, can sterilize;
2, (SH) combine, make the proteinase loss of activity, cause bacterium death with sulfydryl.
After bacterium was killed, silver ion by dissociating out in the bacterial body, was contacting with other floras again, went round and began again and carried out said process, and therefore silver-colored sterilization has persistence.
On the basis of such scheme, in the described antibiotic polyether-type TPU surface layer, the consumption of described nano silver antimicrobials accounts for 1～1.5% of polyether-type TPU quality.
Concrete, the consumption of nano silver antimicrobials can be for accounting for 1,1.05,1.1,1.15,1.2,1.25,1.3,1.35,1.4,1.45 or 1.5% of polyether-type TPU quality.
On the basis of such scheme, also be added with the color masterbatch that consumption accounts for polyether-type TPU quality 8～10% in the described antibiotic polyether-type TPU surface layer.
Concrete, the consumption of color masterbatch can be for accounting for 8,8.2,8.4,8.6,8.8,9,9.2,9.4,9.6,9.8 or 10% of polyether-type TPU quality.
On the basis of such scheme, described fabric is a dacron.
At the manufacture method of above-mentioned fresh food conveying, comprise the preparation of antibiotic base material and common substrate with antibiotic polyether-type TPU load-transfer device:
Antibiotic base material:
Adopt Far-infrared Heating technology, typing is handled to fabric under 165～170 ℃, and carry out primary coat with glue at the upper surface of fabric, the primary coat temperature is 100～110 ℃, adopt extrusion calendaring technology to roll antibiotic polyether-type TPU surface layer down at 180～190 ℃ the polyether-type TPU material that adds nano silver antimicrobials again at the fabric upper surface, adopt Far-infrared Heating technology to carry out primary coat at the fabric lower surface with glue at last, the primary coat temperature is 100～110 ℃;
Common substrate:
Adopt Far-infrared Heating technology, typing is handled to fabric under 165～170 ℃, and carry out primary coat with glue at the upper surface of fabric, the primary coat temperature is 100～110 ℃, adopt the Far-infrared Heating coating processes to apply general T PU powder at the upper surface of fabric again, powder forms general T PU laminating layer through 180～190 ℃ of heating and meltings;
Antibiotic base material glue face and common substrate TPU layer fit together by Far-infrared Heating forms two cloth, two plastic structures, and antibiotic base material glue surface temperature is 140～150 ℃ when wherein fitting, and common substrate TPU surface temperature is 180～190 ℃.
In view of all adopting the Far-infrared Heating powder coating process, makes present domestic TPU load-transfer device, powder can not reach higher degree of firmness in the process of heating and melting, thereby cause product surface to have a large amount of microcosmic pores, in the load-transfer device use, provide a large amount of spaces for adhering to of germ, can't satisfy the requirement of fresh food sterile-processed, the service life of seriously having reduced load-transfer device simultaneously.
Therefore to adopt extrusion calendaring technology that TPU material and fabric are carried out compound in the present invention, thereby avoid the existence of microdefect, improved the degree of firmness of product surface, makes germ be difficult for adhering to, and makes the more easy to clean of load-transfer device.
In addition, product of the present invention adopts two cloth, two plastic structures, has antibiotic polyether-type TPU base material and general T PU base material to be composited.Semifinished piece surface material adopts the polyether-type TPU material that has added nano silver antimicrobials, thereby under the preceding topic that guarantees antibacterial effect, reaches the maximum saving of cost.
Beneficial effect of the present invention:
1, the present invention provides a kind of special environmental protection light-duty load-transfer device for the fresh food processing industry, and then provide a kind of safe and reliable mode of movement, prevent that food is subjected to bacterial contamination in course of conveying, to improving the important effect that has of product quality, and expanded the use field of light-duty load-transfer device;
2, load-transfer device itself has antibacterial action, can make the fresh food that is transferred avoid polluting, and improves product quality.
3, fill up the blank that domestic light-duty load-transfer device does not have antibiotic effect.
4, adopted extrusion calendaring technology to make load-transfer device, thereby avoided the existence of product surface microdefect, improved the degree of firmness of product surface, made germ be difficult for adhering to, made load-transfer device more easy to clean.
Description of drawings
Fig. 1 is the antibiotic polyether-type TPU of a present invention load-transfer device cross-sectional view.
Fig. 2 is a flow scheme of the present invention.
Label declaration in the accompanying drawing
The antibiotic polyether-type TPU of 1-surface layer 3-general T PU laminating layer
2, the 4-fabric.
The specific embodiment
See also Fig. 1 for shown in the antibiotic polyether-type TPU of the present invention load-transfer device cross-sectional view, a kind of fresh food is carried with antibiotic polyether-type TPU load-transfer device, be two cloth, two plastic structures, described polyethers TPU load-transfer device comprises from top to bottom successively: antibiotic polyether-type TPU surface layer 1, fabric 2, general T PU laminating layer 3 and fabric 4.Described fabric 2,4 is dacron, in the described antibiotic polyether-type TPU surface layer 1, in basis material polyether-type TPU, add nano silver antimicrobials and color masterbatch, wherein, the consumption of nano silver antimicrobials accounts for 1.2% of polyether-type TPU total mass, and the consumption of color masterbatch accounts for 9% of polyether-type TPU total mass.
See also Fig. 2 for shown in the flow scheme of the present invention, fresh food is carried the preparation that comprises antibiotic base material and common substrate with the manufacture method of antibiotic polyether-type TPU load-transfer device, wherein:
Antibiotic base material:
Adopt Far-infrared Heating technology, typing is handled to fabric under 165～170 ℃, and carry out primary coat with glue at the upper surface of fabric, the primary coat temperature is 100～110 ℃, adopt extrusion calendaring technology to roll antibiotic polyether-type TPU surface layer down at 180～190 ℃ the polyether-type TPU material that adds nano silver antimicrobials again at the fabric upper surface, adopt Far-infrared Heating technology to carry out primary coat at the fabric lower surface with glue at last, the primary coat temperature is 100～110 ℃;
Common substrate:
Adopt Far-infrared Heating technology, the fabric typing is handled in typing to fabric under 165～170 ℃, and carry out primary coat with glue at the upper surface of fabric, the primary coat temperature is 100～110 ℃, adopt the Far-infrared Heating coating processes to apply general T PU powder at the upper surface of fabric again, powder forms general T PU laminating layer through heating and melting under 180～190 ℃;
Adopt Far-infrared Heating technology, antibiotic base material and common substrate are fitted, make the finished product of two cloth, two plastic structures.Antibiotic base material glue surface temperature is 140～150 ℃ when wherein fitting, and common substrate TPU surface temperature is 180～190 ℃.
The present invention adopts extrusion calendaring technology, utilizes the polyether-type TPU material surface layer that adds nano silver antimicrobials, guarantees the planeness and the degree of firmness of its surface layer, reduces the living space of germ; And employing coating processes production general T PU laminating layer.
The anti-microbial property test result is as shown in table 1:
Annotate: above test basis and method are: " evaluation of ISO22196:2007 surface of plastic products anti-microbial property "
The test bacterial classification is: Escherichia coli 8099, staphylococcus aureus ATCC 6538.
According to above test result as can be seen, for Escherichia coli, initial viable bacteria numerical value is 1.64 * 10
4Individual/cm
2, through (conventional products of no antiseptic interpolation) viable count in the same old way being increased to 6.73 * 10 behind the 24h
3Individual/cm
2, the product viable count that adds antiseptic then drops to 5.07 * 10
2Individual/cm
2, can find out that thus this product has the excellent antibiotic performance to Escherichia coli.Similar for the staphylococcus aureus effect, and stronger antibiotic property is arranged.
Claims (4)
1. a fresh food is carried with antibiotic polyether-type TPU load-transfer device, be two cloth, two plastic structures, it is characterized in that: described polyether-type TPU load-transfer device comprises from top to bottom successively: antibiotic polyether-type TPU surface layer, fabric, general T PU laminating layer and fabric, wherein, in the described antibiotic polyether-type TPU surface layer, add nano silver antimicrobials in basis material, addition accounts for 1～1.5% of surface layer polyether-type TPU quality.
2. fresh food according to claim 1 is carried with antibiotic polyether-type TPU load-transfer device, it is characterized in that: also be added with the color masterbatch that consumption accounts for polyether-type TPU quality 8～10% in the described antibiotic polyether-type TPU surface layer.
3. fresh food according to claim 1 is carried with antibiotic polyether-type TPU load-transfer device, and it is characterized in that: described fabric is a dacron.
4. at the manufacture method of the described fresh food conveying of one of claim 1 to 3, it is characterized in that, comprise the preparation of antibiotic base material and common substrate with antibiotic polyether-type TPU load-transfer device:
The preparation of antibiotic base material:
Fabric typing in regular turn, upper surface at the typing fabric carries out primary coat with glue, adopt extrusion calendaring technology to form antibiotic polyether-type TPU surface layer down at 180～190 ℃ the polyether-type TPU material that has added nano silver antimicrobials again in the calendering of fabric upper surface, surface thickness is 0.25～0.3mm, carries out primary coat at the fabric lower surface with glue at last;
The preparation of common substrate:
Far-infrared Heating technology is handled fabric typing under 165～170 ℃, and carry out primary coat with glue at the upper surface of fabric, the primary coat temperature is 100～110 ℃, adopt the Far-infrared Heating coating processes to apply general T PU powder at the upper surface of fabric again, powder forms general T PU laminating layer through 180～190 ℃ of heating and meltings;
Antibiotic base material glue face and common substrate TPU layer fit together by Far-infrared Heating forms two cloth, two plastic structures, and antibiotic base material glue surface temperature is 140～150 ℃ when wherein fitting, and common substrate TPU surface temperature is 180～190 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100643375A CN102167212A (en) | 2011-03-17 | 2011-03-17 | Antibacterial polyether type TPU (thermoplastic polyurethanes) conveying belt for conveying fresh products and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100643375A CN102167212A (en) | 2011-03-17 | 2011-03-17 | Antibacterial polyether type TPU (thermoplastic polyurethanes) conveying belt for conveying fresh products and production method thereof |
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| Publication Number | Publication Date |
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| CN102167212A true CN102167212A (en) | 2011-08-31 |
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|---|---|---|---|
| CN2011100643375A Pending CN102167212A (en) | 2011-03-17 | 2011-03-17 | Antibacterial polyether type TPU (thermoplastic polyurethanes) conveying belt for conveying fresh products and production method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723438A (en) * | 2014-01-16 | 2014-04-16 | 上海永利带业股份有限公司 | Wear-resistant composite TPU (Thermoplastic Polyurethane) conveying belt and manufacturing method thereof |
| CN104057682A (en) * | 2014-07-02 | 2014-09-24 | 上海永利带业股份有限公司 | Anti-sticking food-grade TPU conveying belt and manufacturing method of anti-sticking food-grade TPU conveying belt |
| CN106079779A (en) * | 2016-06-23 | 2016-11-09 | 江苏科德宝建筑节能科技有限公司 | Air-permeable anti-bacterial film and comprise the waterproof and breathable Antibiotic Membrane of air-permeable anti-bacterial film layer |
| CN106113874A (en) * | 2016-06-23 | 2016-11-16 | 江苏科德宝建筑节能科技有限公司 | Antibacterial base material manufacture method and air-permeable anti-bacterial film and waterproof and breathable Antibiotic Membrane |
| CN112358720A (en) * | 2020-10-22 | 2021-02-12 | 上海永利带业股份有限公司 | Wireless core conveying belt for livestock slaughtering and conveying and manufacturing method thereof |
| CN113831723A (en) * | 2021-09-18 | 2021-12-24 | 上海永利输送系统有限公司 | Preparation method of metal detection food conveying belt |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106079779A (en) * | 2016-06-23 | 2016-11-09 | 江苏科德宝建筑节能科技有限公司 | Air-permeable anti-bacterial film and comprise the waterproof and breathable Antibiotic Membrane of air-permeable anti-bacterial film layer |
| CN106113874A (en) * | 2016-06-23 | 2016-11-16 | 江苏科德宝建筑节能科技有限公司 | Antibacterial base material manufacture method and air-permeable anti-bacterial film and waterproof and breathable Antibiotic Membrane |
| CN106079779B (en) * | 2016-06-23 | 2018-09-11 | 江苏科德宝建筑节能科技有限公司 | Air-permeable anti-bacterial film and waterproof and breathable Antibiotic Membrane comprising air-permeable anti-bacterial film layer |
| CN112358720A (en) * | 2020-10-22 | 2021-02-12 | 上海永利带业股份有限公司 | Wireless core conveying belt for livestock slaughtering and conveying and manufacturing method thereof |
| CN113831723A (en) * | 2021-09-18 | 2021-12-24 | 上海永利输送系统有限公司 | Preparation method of metal detection food conveying belt |
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Application publication date: 20110831 |