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Technology of ESL fill outfit heats up fill to install the applied ESL in production in PET bottle beverage (Extended Shelf Life) the technology is to show the provision that uses modernization lasts technology, the product is saved in the oldest rate fresh below spent condition, reduce the bacterial content of the product, reduce product metamorphism odds and the manufacturing technology that extend product expiration period. The technology that produces ESL product was in early 1960 North America had existed, basically use at producing the product with current slow rate at that time, be like agitate butter and coffee butter. This technology has expanded now other is tall additional cost product and domain of groovy water articles for use. The manufacturing processing technique that the ESL that pays close attention to extensively with getting currently suckles is exemple, ESL technology includes fill of the quality control from bovine field sanitation, raw milk, antiseptic craft, ESL to install treatment method, treatment facilities of crucial point control, treatment and finished product store carry deserves to send wait for a series of link to carry out microbial barrier strictly to control a technology, what carry a product in order to achieve is fresh degree reach the security that raises microbial level, lengthen the purpose of the expiration period of the product. The antiseptic condition that improves a product and the wholesome grade that improve fill furnish equipment are the very important production segment in ESL technology. Among them ESL fill installs a technology, call again exceed clean fill to install (Ultra-Clean Filling) technology, it is the principle according to microbial barrier technology and theory of HACCP quality control, use clean fill furnish to have, in fill up the environment falls cleanly, the stock of will antiseptic qualification fills up in clean bag capable person, achieve the goal of the expiration period that extends a product thereby. ESL fill is able to apply in the production that outfit technology suckles in ESL not only, and, in PET bottle beverage in recent years hot fill is installed also be able to apply stage by stage in production, make PET bottle hot thereby the applied limits of fill outfit technology is able to extend ceaselessly and outspread. In PET bottle ESL hot fill installs a technology in, need considers to package data mainly (bottle and lid) of space of outfit of disinfection, fill purify, fill furnish equipment is external of passageway of outfit of fill of cleanness and disinfection, stock clean and disinfection, and relevant personnel pollutes control to wait for segment of a lot of technology in unit process of cargo bandling. 1, the disinfection of the material that pack is in production of outfit of PET bottle hot fill, the packing material that contacts directly with stock basically is PET bottle and cap. PET empty bottle just was being blown make when coming out, what its take bacterium colony number is less, but because blow,make the empty bottle oneself that go out contain electrostatic, its are extremely easy the dirt in adsorptive air, and dirt is microbial good carrier, accordingly empty bottle is storing the meeting in the process is polluted microbially, the packing means that its pollute degree and PET and store the environment of bottle is concerned [[1]] . The PET bottle that is used at ESL to heat up fill to install and cap need choice pack way reasonably and dominate the data that pack strictly store movement condition, in the meantime, alexipharmic processing must be passed before production is used. In technology design, the craft requirement that needs the choice that according to packaging data initiative microbial pollution degree decides disinfectant breed, disinfectant to use and the choice that disinfect means. In PET bottle ESL hot fill holds product line in, the alexipharmic means of empty bottle basically has alexipharmic fluid douche and gush to develop a way. The alexipharmic means of empty shell basically has successive gush to be mixed to the law immerse law. In the design of product line, those who need the antiseptic intensity that chooses disinfectant according to place, disinfectant is caustic the traversal speed with the excitant, product line to personnel and stability demand and the quality that produce a business are tasted accuse a level to choose reasonable bag capable person to disinfect means. The commonly used disinfectant of the disinfection hiring capable person in be being used at PET bottle ESL to heat up fill to hold production basically has second chloric acid, 2 oxidation acid of chloric, second crossing oxygen and compound model disinfectant [[2]] . Will tell commonly, in low speed product line, use perfusion to disinfect a law the time of alexipharmic fluid effect with general longer tenability, because this is optional,slant with antiseptic ability weak disinfectant. And in product line of medium, high speed, to assure the reliability that equipment runs, the spray that should use disappear venom commonly develops a way, in the meantime, to reduce installation cost cost, time of strong, effect should jump over the gush of venom of pass the time in a leisurely way of the demand on craft short better, when because this is in,choosing disinfectant, want to choose the disinfectant with antiseptic strong capability. On the choice of disinfectant breed, besides key consideration disinfectant antiseptic to microbial wide chart character reachs antiseptic intensity outside, disinfectant is right of equipment corrode, the element that the disinfectant harm to operating personnel and disinfectant are wrapping the remain in material also is key need consideration. If commonly used 2 oxidation are at present chloric, its are had intense excitant, cough, sneeze, energy of life is caused after the contact urgent, bosom is frowsty and stream tears, weep wait for exciting symptom, inspiratory high concentration still can produce lobar oedema. According to document report, when air the content of medium ClO2 exceeds 3mg/m3 is harmful to human body, [The article originates net of the China bottle that pack] when achieving 14mg/m3, can be aware of. The time that our country provides 2 oxidation are chloric increases advantageous position average and concessional chroma is 0.3mg/m3, short time contacts concessional chroma to be 0.8mg/m3[[3]] . In PET bottle ESL hot fill holds product line in, when if choose ClO2 to undertake to hiring capable person,be being disinfected, the inevitable ClO2 that certain amount contains in bringing about manufacturing workshop air because of the leak of ClO2, because this is in the design of equipment, should raise empty bottle to disinfect the equipment sealing of the area above all, reduce ClO2 as far as possible outside discharge; Secondly need adds the protector of the respiratory system of jockey person; Want to monitor the chroma of the ClO2 in workshop air thirdly, eliminate the step with very necessary leak. The craft use condition of the disinfectant that chooses to place (be like temperature, chroma and time) , before production is used, should consult " alexipharmic technology standard " - disinfectant is mixed to spot of object surface imitate the test and verify that the means that in disinfecting appraisal test, the spot provides undertakes alexipharmic fluid sterilizes the effect experiments, in the bag with condition of craft of test and verify material disinfects the rationality on equipment and dependability. 2, the air of outfit space purifies fill to heat up fill to install technology in PET bottle ESL in, to prevent air medium microbial 2 pollution that load semi-manufactured goods to fill, in the fill of product line outfit area installs air to purify a system is indispensable measure. Air purifies a system to be able to separate the industry that is an object for the control with insensate particle clean room and have life particle in order to control (bacterium) with the particle that do not have a life (dust) clean to the biology of working object room. Hot fill of PET bottle ESL installs what craft asks product line fill holds section to purify use live thing clean room, the 100 level that microbial static control grade wants to achieve a country to set purify a standard (see a table - 8) what place of as clean as what basically control dust room differs is, biology is clean the main purpose of the room is control microbial. The work in air is microbial depend on mostly dust particle and form biology active particle. In PET bottle ESL hot fill holds the live thing in product line in clean system, it is to want to filter through HEPA efficient filter above all the means of dust comes adhere to in eliminate air in dust apparently microbial, but the method eliminating bacterium that is physical sex only as a result of HEPA, the wall in clean system, ceiling and equipment surface allow easy stockpile bacterium, should achieve live thing the technical requirement of clean room, in because this is in the design of clean system,still needing to use alexipharmic method to exterminate clean room microbial. Apply means to basically finish by synergism of the following kinds of means actually: (1) producing chrysalis, use medicaments suffocating means to install area to undertake alexipharmic handling to fill regularly; (2) before be being produced, use COP and SOP operation to undertake clean and be alexipharmiced to equipment surface; (3) in giving birth to antenatal and manufacturing process, use ozone to disinfect means; The circular wind that uses HVAC system namely regards ozonic as carrier, diffuse ozone by the circular wind that fan generation purifies in HVAC system to place pilot whole and clean area, and make concentration of the ozone in air even, exterminate the effect of miscellaneous bacterium and mould to arriving since HVAC system, carry out discovery, means of this disinfection sterilization still can have bacteriolysis dredge effect to efficient filter, prolong its service life. (4) setting of fill outfit area has automatic disappear venom to enrage system of sol sparge suffocating, can install space and its equipment surface automatically to undertake alexipharmic to fill regularly. In PET bottle ESL hot fill holds air in clean system, purify means to be distinguished somewhat with the common outfit that heat up fill, its use fill to hold area and operation section each other purify wind independently circulatory system (see a picture - 1, 2) , this kind purifies means to have following advantages: (1) the odour that can prevent to disinfect fluid volatilizes to pack operation area to fill, improvement operates the working environment of personnel; (2) the pollution that can reduce fill to install the activity that operates region staff to hold section to fill. (3) can raise what the fill below trends holds section to purify grade apparently. In new-style PET bottle ESL hot fill is installed in machine, also used what fill of PET bottle asepsis installs to purify means, use isolator (Isolator) means will ensure of each working areas clean spend a requirement. 3, of passageway of stock fill outfit clean and alexipharmic stock sterilization machine and the product that fill installs the content between machine to shed fill to load a channel is antiseptic qualification are caused microbial one of main link that pollute 2 times, maintaining content to shed fill to install the clean sex of the passageway is one of crucial link in technology of outfit of hot fill of PET bottle ESL. Accordingly, in the process is being used with production in design, installation, need installs a passageway to undertake the key considers to stock fill. In designing a process, use blame should avoid not to have fungus valve on passageway of stock fill outfit, at the same time stock sterilization machine and fill outfit should use straight couplet means between machine, the inevitable sanitation that the commonly used stock perch in avoiding to hold product line in hot fill exists in coal tub [the article originates net of the China bottle that pack] blind angle and 2 pollution that cause; In the installation process of product line, the Lv of stock passageway take an examination between stock sterilization machine and fill outfit machine can be sufficient clean and disinfect, avoid wholesome blind angle, inside and outside of adoption stainless steel conduit should make polishing handle (wholesome canal, inside 0.4 μ of polishing Ra ≤ M, outside 1.6 μ of polishing Ra ≤ M) , the join between conduit is used as far as possible solder means, reduce the connection that uses calorie of type or round nut to fit pattern quickly, because every join a sealing ring in conduit, waited to increase two at be on wall from some kind of meaning fine seam, cause foreign matter easily stop and microbial develop. Of conduit solder should use inert gase to protect solder, the conduit after soldering should pass processing of strict defatted, pickling, passivation; Before production, the content between stock sterilization machine and fill outfit machine sheds fill to install a passageway to must pass strict CIP (Cleaning-In-Place) with SIP (Sterilization-In-Place) operation, for this, in PET bottle ESL hot fill holds product line in, need matchs stock to be used at the professional CIP plant that antiseptic equipment and fill outfit machine clean stock, in the meantime, the different form that installs machine perfusion valve according to fill and fill hold the different property of the product, need uses SIP of law of vapour of level of disinfectant law SIP, provision or SIP of hot water law to shed a passageway to undertake effective disinfection is operated to content. 4, equipment of furnish of the fill inside fill outfit area is external cleanness and disinfection are in process of outfit of hot fill of PET bottle ESL, 2 pollution that cause fill by the breed with equipment microbial surface to install link are the process of an advance gradually, clean as a result of equipment surface or environment not complete, the stock in perhaps producing a course is aspersed splash equipment surface, can make partial nurture pledges rich collect causes a share microbial be able to live and breed, form to the meeting after certain level when microbial multiply " biomembrane " , in biomembrane protection falls, of all kinds miscellaneous bacterium breeds at full speed. Once the condition is permitted, can destroy fill to install the sanitation inside clean area to purify degree. Because this is in product line of outfit of hot fill of PET bottle ESL, hold clean degree of the environment to assure fill, need passes COP (Cleaning-Out-Of-Place) bubble cleans means and SOP (Sterilization -Out-Of-Place) alexipharmic means will realize those who purify face of appearance of the equipment inside segregation area to clean with disinfection. The method that COP bubble cleans is bubble mother liquor is added in high-pressured water in proportion, solution is compressed inside blender after air mixes adequately, make its epispastic, next will epispastic the clear lotion after sprays through appropriative COP device the surface in the content that be washed, clear lotion and bilge keep sufficient [the article originates net of the China bottle that pack] osculatory time (normally L0 ～ 15 minutes) hind, scald thin slices of meat in boiling water of bath of reoccupy high pressure but will be in come off extremely easily the bilge of condition is very easy eliminate. This kind of method needs to use only a few scour can be achieved clean the effect very well. Additional, through adjusting interfuse airy rate can adjust foamy soft hardness, make thereby bubble has stronger adherent sex on vertical plane. COP bubble is cleaned with SOP disinfection has advantaged advantage, incorporate is: (1) big political integrity made an appointment with manpower and the chemical that clean disinfection to use; (2) can be in shorter clean the clean work that large area completes inside working hours; (3) because bubble has certain adherent sex, make chemical contact is handled exterior time is relatively longer; (4) because bubble has certain liquidity, make clear lotion or disinfectant can permeate very smooth aperture or groove inside, arrest wholesome a spot as yet untouched by a political movement. Bubble filter cloth cleaning device has with formulary and mobile and light type two kinds, to the factory of mass production, agree with choose stationary to center pilot plant, semiworks and clean an object smally to agree with choose unit of mobile and light type. The chemical that regards bubble as cleanness and disinfection basically has alkalescent foaming agent, acidity foaming agent and disinfection foaming agent. Use automatic bubble rinsing equipment, can finish " water rinses water of → of → alkalescent bubble to rinse water of → of → acidity bubble to rinse → to disinfect bubble → water to rinse " 7 footwork and " water rinses → alkaline (acid) water of sexual bubble → rinses water of alexipharmic bubble → " of a variety of mode such as 5 footwork clean, hold the clean and disinfects end of equipment appearance face in order to achieve the fill inside perfusion area. In the meantime, purify systematic synergism through holding dimensional air with fill, those who will make sure fill holds section is clean degree. 5, control of relevant personnel pollution is in unit process of cargo bandling in production of outfit of hot fill of PET bottle ESL, preventing 2 pollution that come from operation personnel is very important segment, for this, need strengthens education to operate the microbial quality awareness of personnel, in the meantime, the lash-up that in building maintenance unit process of cargo bandling, pollutes artificially accidentally sterilizes measure, establish reasonable HACCP quality hierarchy of control, reduce risk sex of production. In recent years, ESL fill installs a technology to heat up fill to pack the application that fixed rate had gotten in production in PET bottle. For example, in PH ≤ hot fill of the fruit juice beverage of 4.5 and bottle of moving beverage PET holds production in, install a technology through applying ESL fill, can install hot fill craft to fill up mediumly temperature by 83 ℃ ～ 95 ℃ are reduced to 65 ～ 70 ℃ , below the prerequisite that does not add antiseptic, make the wholesome technology target that the wholesome index that uses the lotion that is not production of heat-resisting PET bottle reached heat-resisting PET bottled beverage and requirement of national relevant specification. ESL fill installs a technology to heat up fill to pack the application in product line in bottle of PET of lactic acid beverage, can make the product asks to the standard in make known to lower levels of normal temperature condition
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