CN1158926C - Environmentally-friendly, controlled-release insect repellent device - Google Patents

Environmentally-friendly, controlled-release insect repellent device Download PDF

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Publication number
CN1158926C
CN1158926C CNB971214298A CN97121429A CN1158926C CN 1158926 C CN1158926 C CN 1158926C CN B971214298 A CNB971214298 A CN B971214298A CN 97121429 A CN97121429 A CN 97121429A CN 1158926 C CN1158926 C CN 1158926C
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China
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sustained release
insect repellent
repellent device
oil
repellant
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CN1208562A (en
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M・N・拉德万
M·N·拉德万
阿林
G·P·阿林
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Crosta Industry Corp.
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CROSTA INDUSTRY CORP
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Abstract

The present invention provides a controlled-release insect repellent device and a method for repelling insects from foodstuffs, tobacco or other consumables. The device comprises an insect repelling composition coming into contact with substrate and is made by a method comprising: applying the insect repelling composition to the substrate, wherein the used insect repelling composition is placed in the device in certain quantities which have no toxicity to people and animals when the insect repelling composition is released. The method for repelling the insects comprises: putting the device in a position where the insects appear probably.

Description

The sustained release insect repellent device of environmental sound
Invention field
The present invention relates to the insect repellent device of sustained release insect repellant immunomodulator compounds and use the method for this sustained release insect repellent device repel insects on food, tobacco or other running stores.This sustained release insect repellent device is safe for the running stores that contacted, and can be used for the field that insect is driven away in any hope.This sustained release insect repellent device also is safe for environment.
Background of invention
Insecticidal compounds is known, but the people that their normal orders contact with it begins to detest.Have been found that a lot of compounds are virose for human and environment, and can not directly or indirectly contact with food, tobacco or other running stores.And the FDA and the EPA permission that are used for the noval chemical compound of Pest Control may need the several years to obtain.The invention provides a kind of sustained release insect repellent device that contains compound, its effective repel insects, harmless to the people that great majority contact with it, and environment do not had the effect of paying.A lot of insect repellant immunomodulator compounds that can be used in sustained release insect repellent device of the present invention have been permitted and have been used for food and medicine.
Summary of the invention
The invention provides a kind of sustained release insect repellent device of repel insects on food, tobacco or other running stores of environmental sound, it is used in food (comprising baby food) is safe, and for people, animal or for environmentally friendly.The present invention also provides the method for this sustained release insect repellent device of a kind of usefulness repel insects on food, tobacco or other running stores.This sustained release insect repellent device comprises the food repellant compositions that contacts with a substrate.This sustained release insect repellent device prepares by comprising the method that insect repellant compositions is applied to this substrate.The method of repel insects comprises this sustained release insect repellent device is placed the place that has insect.The insect repellant compositions that uses in this sustained release insect repellent device is prepared as follows: with a kind of repellant compound, a kind of sustained release agent and dispensable a kind of solvent, form precursor composition, afterwards said composition is imposed on a kind of substrate, if desired, carry out drying, form insect repellant compositions.Also can use other additive, as the reagent and the thickener of coupling agent, sustained release speed.The repellant compound can be selected from the active component of aromatic oil and aromatic oil.Aromatic oil is defined as any by the plant acquisition and ethereal oil that have this plant scent and other characteristic.Described sustained release agent comprises synthetic and/or natural compound.
This sustained release insect repellent device is useful, because it only contains a small amount of active component in insect repellant compositions, it is safe that this active component is used for food, tobacco or other running stores, and the volatilization gas of this active component beg for great majority with it the contact people like.And this sustained release insect repellent device keeps active in institute's phase time durations, with the time interval can change-short to long term.The amount of the active component that exists in the sustained release insect repellent device is to the avirulent amount of humans and animals when it discharges in this device.
Brief description of drawings
By reading following detailed description also with reference to the accompanying drawings, advantage of the present invention will become apparent, wherein:
Fig. 1 provides employed plot design in the test of gaultherolin to the effectiveness of India's purple plague purpura paddy snout moth's larva as repellant;
The response that is India's purple plague purpura paddy snout moth's larva to gaultherolin shown in Figure 2;
Fig. 3 provides the sustained release insect repellent device of the present invention that the contains gaultherolin effect to India's purple plague purpura paddy snout moth's larva that is exposed to.
Fig. 4 provides an example of sustained release insect repellent device of the present invention.
Fig. 5 provides an example of sustained release insect repellent device of the present invention.
Detailed description of the invention
The control release insect repellent device control release insect repellent of environmental sound of the present invention, thereby provide a kind of insect repellent device, it is remained valid during desired, and its product that contacts with animal for adult, children can be safer and more healthy.
The invention discloses the compound volatilization rate of release with repel insects ability can regulate by the access control releasing agent. Because Controlled release formulation is to the affinity of active component, therefore in some cases, be mixable the mixing with repellant compound and Controlled release formulation in the active component in the repellant compound wherein, can control the volatilization of active component. Change repellant compound and the relative scale of Controlled release formulation and type, amount and the concentration of selection active component (for example aromatic oil) and non-active ingredient (for example Controlled release formulation) in the insect repellant compositions, can more particularly control rate of release. In addition, additive package and repellant compound are also influential to controlling. Can control rate of release is an advantage of control release insect repellent device. The control rate of release prolongs the term of validity of insect repellent device, thereby prolongs its service life. The control rate of release prevents that also repellant compound over-exposure from arranging article contact or around this setting in this.
Sustained release insect repellant device of the present invention has another advantage, is exactly that it can be used for repel insects on food, tobacco or other running stores, and can directly or indirectly contacts use with running stores.In addition, this device also can be used for nonexpendable item, i.e. fabric and fur.The repellant compound exists promptly when it discharges with such amount, and it is to adult, children and animal avirulence.When the sustained release insect repellent device contacted with running stores, the rate of release of control repellent compound can repel insects, and with it simultaneously, did not discharge unsuitable smell or changed the local flavor of running stores, did not wish to appear at the problem in the consumer products.
Insect repellant compositions of the present invention is by mixing repellent immunomodulator compounds and sustained release agent, and dispensable solvent, and/or other additive, forms precursor mixture, then a kind of substrate that this precursor compound is applied and making.The precursor mixture drying can be formed the insect repellant compositions on the substrate if desired then.The pH of operable precursor mixture only is subjected to the restriction to substrate and coating material effect.Precursor mixture is preferably dry after imposing on substrate.Dry temperature is not thought important, but operable temperature range is approximately-17 ℃ to about 315 ℃, preferably approximately 37 ℃ to about 205 ℃, and most preferably about 37 ℃ of about 150 ℃ of scopes extremely.
The example of repellant compound is aromatic oil such as bitter benevolence apricot oil, anise oil, basil, bayberry oil, cardamom oil, cedar leaves oil, celery oil, chamomile oil, cinnamon leaves oil, citronella oil, cloves oil, coriander oil, cymin oil, dill oil, palm oil, fennel oil, ginger oil, grape-fruit seed oil, lemon oil, lime oil, peppermint oil, parsley oil, papper oil, attar of rose, peppermint oil (menthol), orange oil, thyme linaloe oil, tumeric oil, wintergreen (being also referred to as Gaultheria oil).The example of active component is citronellal, gaultherolin, salethyl, propyl salicylate, citronellol, safrole, 1-ally-3,4-methy-lene dioxy benzene and D-limonene in the aromatic oil.Preferred repellant compound is an aromatic oil: wintergreen or its active component gaultherolin.
Insect repellant compositions apply and on substrate dry after, the repellant compound concentrations is the scope of about 0.1wt.% to about 80wt.% in the insect repellant compositions, preferably approximately 0.1wt% is to about 40wt.%, most preferably approximately 0.1wt% is to about 20wt.%, and the aequum with insect repellant compositions that (dry weight) has does not have the amount of sustained release agent, solvent and/or other additive of evaporation during drying steps.
This sustained release agent comprises a kind of such compound, the speed that this compound control repellant compound discharges from described device.Any permission directly or indirectly contacts the compound that uses with food, tobacco or other running stores all can be used as described sustained release agent.The example of sustained release agent is inorganic and organic polymer, comprises natural, synthetic and semi-synthetic organic polymer.The example of such polymer is latex resin (for example phenylethene modified acrylic resin and phenylethene modified butadiene resin), solution acrylic acid, polyvinyl resin, mosanom, natural gum or hydrogenation colloid (for example gum Arabic, mosanom, guar gum and pectin), rubber polymer (for example fumaric acid modified resins), Tissuemat E, wax emulsion, polymer printing ink (for example special formulation such as U.V. and electron beam), polymer aqueous foam.(but for example cold forming type, heat melt printing heat typing and ultrasonic-type and response type and non-response type laminating adhesive to adhesive; ), polymer protective coating, priming paint and natural resin prescription/mixing natural resin prescription (for example   resin, zeins and protein).The example of the sustained release agent of operable non-polymer is that non-polymer printing ink, non-polymer resistance aqueous foam, non-polymer protect coating and filler, for example sawdust, clay and zirlite (zolites).Also comprise do not list but make other compound of the speed of control repellant compound in device.
Described sustained release agent also can contain a kind of solvent and/or additive not essentially, for example coupling agent composition dispersant (for example 2-amino-2-methyl-1-propanol).Operable solvent is compatible with described repellant compound, and uses described sustained release agent to generate precursor mixture.The example of solvent is water, alcohols, acetone, ammonia, ether and glacial acetic acid.The compound that uses in the sustained release agent is liquid or molten condition, may not need solvent in the sustained release agent.
Sustained release agent should not have adverse influence (for example making the shape or the intensity of substrate variable color or change substrate) to the character of substrate or should disturb the processing (for example using the further coating that hinders substrate behind the insect repellant compositions) of substrate.
Before being administered to substrate formation insect repellant compositions, the weight range of the insect repellant immunomodulator compounds that exists in the precursor mixture is about 0.05% to about 40%, preferably from about 0.05 to about 20%, most preferably from about 0.05 to about 10% (weight in wet base).Impose on substrate and arbitrarily after the drying, the scope of the amount of the insect repellent that exists in the insect repellant compositions is from about 0.1% to about 80%, preferably from about 0.1% to about 40%, most preferably from about 0.1% to about 20% (drying).All percentages are weight ratios.
The example that precursor mixture can be applied to the substrate on it is for example paper, cardboard, corrugated carton and wadding or each composition of matrix, plastics, plastic plate, fabric, metal such as aluminium and metallized film, and other layer and coating can be arranged on it.Preferred substrate exists with the form of the container of the running stores of Sheng adult, children and animal.The example of container is the pad of folding bristol box, corrugated carton, ripply carton and case, bag, bag, molded fiber, compacting, flexible box, plastics and aluminium box and bag.Substrate also can be to place the insect will be by the form of the animal body of the region of repellent, for example the scraps of paper, cardboard, the plastics that are placed on the food storage place or metal, cabinet or building.
The sustained release insect repellent device can be nozzle, pole coating machine, blade coating machine, air knife coating machine, roll over and roll coating machine, multiple roll transmission, control and non-control drip, wet drip, baffle plate coating machine, vacuum and the antivacuum dipping of bathing with the example of the method for precursor compound coating.When the sustained release insect repellent device is a box, also not so that box is printed.For the present invention's operable printing process of filling a prescription is gravure typography, aniline printing, screen painting, letterpress, web offset, single paper offset printing, ink jet printing.
Rate of release from the active component steam of insect repellant compositions also can be controlled for the directionality dividing plate of sustained release insect repellant device by using.Such dividing plate also can be controlled the direction that steam discharges.Separator material can be the part of substrate, or can directly be used in the top of sustained release insect repellent device.Separator material can be prepared with the paper tinsel of whole dividing plate, perhaps goes out the substrate of film (comprising multilayer film), paper, coating for example, the solvent less than whole dividing plate that perhaps also can be to use, solvent-free or aqueous liquid paints with following material preparation.Other example of dividing plate is aluminium foil, paper, polymeric membrane or has stepped construction.The example of polymeric membrane is polyethylene, polyester, polypropylene, polyvinyl alcohol, ethyl vinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate and its stepped construction.The concrete dividing plate of having tested is aluminium foil, polyethylene, polyester film, polypropylene screen and paper.The paper of test is with moisture and aqueous solvent dividing plate paint coatings not.
The insect that can use present composition repellent is an acarid for example, (for example European tame peronium mite (Dermatophagoides pteronyss inus), America man peronium mite (Dermatophagoides forinae) and tyrophagus putrescentiae (Tyrophagus putrescentiae), moth and moth larvae (India purple plague purpura paddy snout moth's larva (plodia interpunctella) (order: section=Lepidoptera=Pyralidae)) for example, weevil (rice weevil for example, Sitophilus oryzae), beetle (for example adzuki bean weevil (Collosobruchus chinesis)) and Stegobium paniceum (Stegobium paniceum), and housefly (Musca domestica).
Sustained release insect repellent device of the present invention is to be used for repel insects on food, tobacco or other running stores.This sustained release insect repellant device can directly contact with food or other running stores (for example being used to store the box of prematurity cereal), perhaps contiguous food (not directly contact is for example in cupboard).
Embodiment 1
Experimentize, in the advance copy invention sustained release insect repellent device as the gaultherolin of repellant effectiveness to India's purple plague purpura paddy snout moth's larva.The purpose of the research is pure (SILVER REAGENT) gaultherolin of commenting as repellant; Evaluation is as stable (SILVER REAGENT) gaultherolin of the pH of repellant; With estimate as two kinds of mixture-45% solids (high solid, " H/S ") of uncured (undried) sustained release agent of repellant and 10% solid (hanging down solid, " L/S ")-with the gaultherolin of two kinds of ratios-(0.1 and 0.2V/V).
Method and material
Accompany Ti Shi circle ware (to carry out effect research (Fig. 1) among the radius=10cm, height=2.54cm) at the plastics that have vinyl cover.Cover and have ventilation hole, and the label of bonding is separated into 4 half.This 4 half is labeled as 1 to 4, and handled thing always enters from No. 1 central authorities outside.
Whatman No.1 filter paper is placed round ware, and size is with circle ware diameter, as following substrate.2.54 * 0.5 * 0.05cm What man No.1 folded filter paper is become I shape, and place with the central authorities that deal with No. 1, dull and stereotyped scallop hole, this flat board will be handled medicine and be higher than substrate 1.5cm, help evaporating and directly not contact insect.
Beginning in each experiment, following each 0.5ml sample with one of 8 kinds of handled things (repeating 3-5 time) moves on on the flat board with pipette: 0.1 gaultherolin (SILVER REAGENT) in the ethanol (70%) (over against shining), 70% ethanol (solvent control), 0.1 and 0.2 gaultherolin that pH is stable in H/S and the L/S polymeric blends (=4 processing), or H/S:L/S (V/V) mixture (polymer contrast).
Before handled thing is placed round ware,, use CO with sucking-off in 20 India purple plague purpura paddy snout moth's larva adults bottle from behind 2Anesthesia, and be put in the cell carefully.Insect was conformed 5 minutes under about 25.6 ℃ (78 °F) at least.
After handled thing moved on to dull and stereotyped going up with pipette, when 1,5,10 and 15 minute time interval, measured India's purple plague purpura paddy snout moth's larva number of handling India's purple plague purpura paddy snout moth's larva number and each other 3 round ware fan section in the fan section.If what handle is a kind of repellant, then 2,3 and No. 4 more moth worm is arranged in the fan section on average.
To the drawing of all data, make and obey the canonical statistics probability, match T test and/or variance analysis with average amplitude afterwards.
" to no effect " reaction should be found the moth worm of similar number in average each fan section.If there is repellent action, then will find the moth worm that obviously reduces than other fan section in No. 1 fan section of using handled thing.
Ooze and the typical example of all situations of gaultherolin is seen Fig. 2, and in table 1, express.
Table 1
The moth worm is to the reaction of sustained release insect repellent device
Open-assembly time (minute)
1 5 10 15
The position Moth borer population order
1 average 2,3 and 4 2 2 3 4 5 5 4 4
Per cent death loss The contrast of handling 0 0 26 35 0 0 0 0
After table 1 showed 1 minute, the moth worm mean of finding in the fan section of processing was 2, and fan section 2,34 in the moth borer population be 5.It should be noted that contrast moth distribution average out to 4.7 ± 0.62 between four fan sections, indifference between the check plot, but also handle fan section fully different (φ≤0.05).This shows strong repellent action.
Repellent effect still keeps very strong after 5 minutes, in the processing fan section 2 adult moths are arranged on average, and other fan section has 5.
During off-test, the adult moth adapted to from the 10th minute to the 15th minute, anesthesia or dead.Dosage is too high so that can not stop the receptor to reduce and/or cause death obviously.
Table 1 and Fig. 3 reflect the representational average per cent death loss of all situations that relates to gaultherolin in ethanol or the sustained release agent.Dying moth occurred except that handled thing made in 10 minutes, and increased lethality with the prolongation of open-assembly time.Lethality average 35% after 15 minutes.Discuss and conclusion
Gaultherolin is a kind of virtuous India purple plague purpura paddy snout moth's larva adult repellant.This point is all very clear in each repeated experiments of experiment and each experiment each time.When high dose (0.2v/v), gaultherolin induces hyperaction, wing trembles, occurs escape behavior, dead even.When using half ratio (0.1v/v) treatment mixture, these symptoms all weaken on time and degree to some extent, but all effective when handling repeated experiments at every turn.
The gaultherolin preparation of SILVER REAGENT and pH stabilisation causes bigger lethality than polymer formulations, compares with other preparation, and they also make moth worm custom in the shorter time.This explanation polymer slowly is discharged in the air gaultherolin.Therefore polymer will prolong the repellant life-span of gaultherolin.
In any control group, do not find the repellent or the phenomena of mortality.That is to say that ethanol is as the solvent of SILVER REAGENT gaultherolin or only cause insect death with the mixture of H/S and L/S sustained release agent.The gaultherolin sustained release reagent mixture that is all proportions causes insect death.
Embodiment 2
Experimentize and measure insect repellant compositions of the present invention preventing the new crop (banana rice, banana rice) of India's purple plague purpura paddy snout moth's larva infringement packing.The invasion and attack packaging for foodstuff of moth adult also will be laid eggs in the above.The ovum hatching produces larva, creeps into packing then, and the hole that stays makes food exposure in environment.Get food back larva and grow up, ejection one 4-5 time is usually weaved silk, and by the pupa stage, grows up to the moth adult.Moth larvae grows up to the big or small moth adult of 1.25cm/ (1/2 English inch) that is grow up to pupa in food Package after.
India's purple plague purpura paddy snout moth's larva growth cycle prepares insect repellant compositions
The precursor insect repellant compositions is by preparing a kind of sustained release agent and a kind of repellant compound.In some compositions, also used other additive.
Composition A is by preparing with following ratio mixture releasing agent and additive: the acrylic resin (sustained release agent) that 80wt.% is phenylethene modified, 10wt.% nonionic Tissuemat E (coupling agent and the 10wt.%2% mosanom aqueous solution (thickener).Solution of sodium alginate viscosity is 20 seconds, and (the metal cup bottom aperture that is 44mL flow path diameter 0.38cm (0.148 English inch) needed for 20 seconds to #3 Zahn cup; Use the Zahn viscometer determining).Then the sustained release agent composition is added to and forms composition A in repellant compound (gaultherolin) and the solvent (deionized water).
Composition B by sustained release agent directly and the repellant compound prepare.Sustained release agent is the priming paint agent that commerce can get, and the repellent compound is a gaultherolin.
Repellant compound composition A and B with three kinds of variable concentrations.Composition contains 90% sustained release agent composition and 0.5%, 2.5%, or 5.0% repellant compound (weight in wet base), and the repellant compound is uniformly distributed in the solvent.Join that the viscosity of composition is 18-20 second before the solvent, #2 Zahn cup (be 44ml liquid flow through the aperture of diameter 0.27cm (0.108 English) need 18-20 second).The pH of final composition is between about 9 and about 9.5.
Handle cardboard
With two kinds of method A and method B cardboard is used precursor insect repellant compositions A and B respectively, obtain having on the substrate three kinds of different dry weight humidity [to be 0.976kg coating/m 21%, 5% and 10% dry weight (0.21bs/1000ft of paperboard surface 2)] insect repellant compositions.As shown in Figure 4 and Figure 5, substrate is made up of cardboard 1, and interior coating polyethylene two and outer clay paint 3 are arranged on the cardboard 1.Use insect repellant compositions 4 with one of two positions to soaking substrate.Fig. 4 provides the result of method A, and is wherein big when polyethylene coating 2 is expressed into the cardboard inboard, applies insect repellant compositions 4 on paperboard outer clay paint 3.Fig. 5 provides the result of method B, wherein before polyethylene 2 is expressed into the cardboard back side insect repellant compositions 4 (being that polyethylene is squeezed on the insect repellant compositions) is used at the cardboard back side.This back cardboard becomes the cardboard type that coml is used for cereal, and it scribbles polyethylene coating at the cardboard back side, in the cereal box outside clay coating is arranged.
The banana rice (banana rice babyCereal) of packing in the carton box that insect repellent was handled then, and use glue sealing.
India's purple plague purpura paddy snout moth's larva infringement test
After the paperboard grade (stock) insect repellant compositions handled at least six weeks, carton box is exposed to India's purple plague purpura paddy snout moth's larva of testing in the cell.The paper bag part of handling is 8 groups (2 control groups (being untreated), 3 group and 3 groups of handling with method B of handling with method A insect repellant compositions).One of control group is separation test in the cell that separates, and another places among the processed group.
Difference between 3 experimental group of method A and B is that gaultherolin content is 1,5 and 10% in the coating of doing.
Be 8 weeks whole periods of infringement test.During from on-test and in the beginning in each ensuing week, the moth adult of new maturation is introduced in the test cell.When on-test, these moths can produce larva (moth in infringement stage), and calculating young ratio is 156/carton box.
Place the paper bag of test cell to take out 6 carton boxes as sample from every group at random in the 0th, 1,2,4,6 and 8 weeks.The carton box that uses add up to 288 carton boxes, wherein 48 do not expose insect repellant compositions, the larva sum is about 37500.
During the new moth of every increase, owing to taking out sample total larva number is not changed, the carton box number descends in the test cell.Therefore, in last week of test, the larva number increases with each taking-up in the carton box, is increased to 1250 from 156.And, keep the carton box in full 8 weeks of test to be exposed to many 5600 the larva/carton boxes of sum at duration of test.
In the distance between carton box between the test period 1 is about 1.3cm (0.5 English inch), along with the taking-up of each sample, makes between carton box apart from being increased to about 15.2cm (6.0 English inch) gradually as sample owing to taking out carton box at last in test.Condition in the control test cell is to simulate the condition in the room chest: temperature remains on about 25 ± 1.9 ℃ (77 ± 3.5 °F), and air upgrades 12 times every day fully.
Moth larvae is to the infringement of the carton box percentage with the carton box of the moth infringement in any stage of being grown by moth, in each carton box the larva number and after being exposed to the moth worm during the 0th, 1,2,4,6 and 8 weeks larval growth grow and whether normally represent.Carton box is other two weeks of insulation in sealed plastic bag respectively, make larval growth, and it is grown to enough greatly with counting.The results are shown in the following table.
Table 2
Time (week) 0 1 2
Infringement degree (%) Larva number in each carton box Normal growth is grown Infringement degree (%) Larva number in each carton box The normal growth degree Infringement degree (%) Larva number in each carton box Normal growth is grown
The not separation that contrast separates 0 0 0 0 - - 33 17 2-5 1 Whether 67 0 2-5 0 Be-
Method 1% 5% 10% 0 0 0 0 0 0 - - - 0 0 0 0 0 0 - - - 17 0 0 1 0 0 Be not--
Method 1% 5% 10% 0 0 0 0 0 0 - - - 0 0 0 0 0 0 - - - 0 0 0 0 0 0 - - -
Time (week) 4 6 8
Infringement degree (%) Larva number in each carton box Normal growth is grown Infringement degree (%) Larva number in each carton box The normal growth degree Infringement degree (%) Larva number in each carton box Normal growth is grown
The not separation that contrast separates 83 17 6-10 0 Whether 100 17 >15 1 Be 100 83 >15 1 Be
Method 1% 5% 10% 0 0 0 0 0 0 - - - 0 17 0 0 1 0 - No - 50 50 0 2-5 1 0 Be-
Method 1% 5% 10% 0 0 0 0 0 0 - - - 0 0 0 0 0 0 - - - 50 33 17 1 1 1 Whether
Result shown in the table 2 showed between packing and delivery period does not have carton box to be encroached on, and this point is not confirmed by having infringement with the insect repellant compositions processing when test of generation is initial approximately after two months.
Control paper bag separately is 33% in first week back infringement degree, and each paper bag has the moth larvae of 2-5 normal growth.After second week, it is that 67%, the six week back infringement degree rises to 100% that these hundred numbers double, and the moth worm that surpasses 15 normal growths is arranged in each paper bag.
The undivided contrast paper bag of also testing around the test paper bag that places has only a pair of family that the moth larvae of obstruction is arranged, but does not also have the 2nd all back moth worms in the 1st week and the 4th week back demonstration 17% infringement degree.After the 6th week, paper bag is 17% by the infringement degree, and the moth larvae of a normal development is arranged.During the 8th week, 83% paper bag is encroached on, and each paper bag has the moth worm of a normal growth.Place the slower infestation of processed paper bag contrast paper bag on every side to show that processed paper bag provides the second class protection effect of some degree to the contrast representative.
After the 2nd and the 6th week, processed carton box is sent out the bad moth larvae infringement in family by one, but is just encroached on by the moth larvae of normal growth after the 8th week.And, handle the carton box bag with the insect repellant compositions that contains high concentration repellant compound (10%) and when handling, after the 8th week, have only one family that the larva of obstacle is arranged, and when handling, do not have moth larvae at all with method A with method B.
Insect repellant compositions of the present invention prevents that successfully the impression that paper bag is encroached on to tell with regard to Several Factors from being very dark.The density (5600 of each carton boxes) that larva increases; 156/carton box when on-test increases to the 1250/carton box in the 8th week of test) more much higher than the food carton box that may be exposed to the packing in the normal furniture.In addition, from these carton boxes being used behind the insect repellant compositions through finishing this experiment in 4 months.Find that at last in the time of in the moth worm being incorporated into for the first time the test cell, they make an attempt at escaping rather than want to creep into the carton box of containing food.Therefore, may be if carton box is tested after using insect repellant compositions soon, the infringement of then testing carton box may reduce significantly, and the density that larva increases reaches normal range (NR), and the moth worm has and is forced to rest near the carton box.

Claims (36)

1, a kind of on food, tobacco or other running stores sustained release insect repellent device of repel insects, comprise a kind of insect repellant compositions that contacts with substrate;
Wherein insect repellant compositions contains (a) a kind of repellant compound that is selected from aromatic oil and described aromatic oil active component, (b) a kind of sustained release agent;
Wherein before being administered to substrate, the amount of the repellant compound that exists in the described insect repellant compositions is 0.05 to 40% weight, after imposing on substrate and drying, the amount of the repellant compound that exists in the insect repellant compositions be 0.1% to 80% weight and
Wherein said sustained release agent is used to control the rate of release of repellant compound from this device.
2, the sustained release insect repellent device of claim 1, wherein insect repellant compositions further contains a kind of solvent.
3, the sustained release insect repellent device of claim 1, wherein the repellant compound is a kind of aromatic oil.
4, the sustained release insect repellent device of claim 3 wherein is administered to before the substrate, and the amount of the repellant compound that exists in the insect repellant compositions is 0.05 to 20% weight.
5, the sustained release insect repellent device of claim 1 wherein is administered to before the substrate, and the amount of the repellant compound that exists in the insect repellant compositions is 0.05 to 10% weight.
6, the sustained release insect repellent device of claim 1, wherein impose on substrate and drying after, the amount of the repellant compound that exists in the insect repellant compositions is 0.1% to 40% weight.
7, the sustained release insect repellent device of claim 6, wherein impose on substrate and drying after, the amount of the repellant compound that exists in the insect repellant compositions is 0.1% to 20% weight.
8, the sustained release insect repellent device of claim 1, wherein the insect repellant immunomodulator compounds is selected from almond oil, anise oil, basil, bayberry oil, cardamom oil, cedar leaves oil, celery oil, chamomile oil, cinnamon leaves oil, citronella oil, cloves oil, coriander oil, cymin oil, dill oil, palm oil, fennel oil, ginger oil, grape-fruit seed oil, lemon oil, lime oil, peppermint oil, parsley oil, papper oil, attar of rose, menthol, orange oil, thyme linaloe oil, tumeric oil, wintergreen, citronellal, gaultherolin, salethyl, propyl salicylate, citronellol, safrole, 1-ally-3,4-methy-lene dioxy benzene and D-limonene.
9, the sustained release insect repellent device of claim 8, wherein the repellant compound is the active component in the aromatic oil.
10, the sustained release insect repellent device of claim 8, wherein the repellant compound is a wintergreen.
11, the sustained release insect repellent device of claim 8, wherein the repellant compound is a gaultherolin.
12, the sustained release insect repellent device of claim 1, wherein substrate is selected from paper, cardboard, corrugated carton, corrugated carton wadding, corrugated carton matrix, plastics, plastic plate, fabric and metal.
13, the sustained release insect repellent device of claim 12, wherein substrate is a cardboard.
14, the sustained release insect repellent device of claim 12, wherein substrate is a vessel form.
15, the sustained release insect repellent device of claim 14 wherein fills food in the container.
16, the sustained release insect repellent device of claim 14 wherein fills tobacco in the container.
17, the sustained release insect repellent device of claim 1, wherein sustained release agent is selected from polymer, non-polymer printing ink, non-polymer resistance aqueous foam, non-polymer protective coating and filler.
18, the sustained release insect repellent device of claim 17, wherein sustained release agent is selected from latex resin, solution acrylic acid, polyvinyl resin, natural gum, rubber polymer, Tissuemat E, wax emulsion, polymer printing ink, polymer aqueous foam, adhesive, polymer protective coating, priming paint and natural resin prescription.
19, the sustained release insect repellent device of claim 18, wherein sustained release agent is a latex resin.
20, the sustained release insect repellent device of claim 19, wherein sustained release agent comprises phenylethene modified acrylic resin.
21, the sustained release insect repellent device of claim 19, wherein sustained release agent comprises phenylethene modified butadiene resin.
22, the sustained release insect repellent device of claim 18, wherein sustained release agent comprises synthetic or natural natural gum.
23, the sustained release insect repellent device of claim 22, wherein sustained release agent comprises gum Arabic.
24, the sustained release insect repellent device of claim 18, wherein sustained release agent comprises Tissuemat E or wax emulsion.
25, the sustained release insect repellent device of claim 1, wherein sustained release agent comprises adhesive.
26, the sustained release insect repellent device of claim 25, wherein sustained release agent comprises laminating adhesive.
27, the sustained release insect repellent device of claim 18, wherein sustained release agent comprises priming paint.
28, the sustained release insect repellent device of claim 18, wherein sustained release agent comprises mosanom.
29, the sustained release insect repellent device of claim 22, wherein sustained release agent comprises the fumaric acid modified resins.
30, the sustained release insect repellent device of claim 18, wherein sustained release agent is a   resin, zeins, or protein.
31, the sustained release insect repellent device of claim 1, wherein sustained release agent comprises phenylethene modified acrylic resin, and the repellant compound comprises gaultherolin, and solvent is a water, and insect repellant compositions also contains the nonionic Tissuemat E.
32, the sustained release insect repellent device of claim 1, wherein solvent is a water.
33, the sustained release insect repellent device of claim 1 also comprises with substrate contacting, the directionality dividing plate of control repellant compound direction of disengaged vapor from the substrate.
34, the sustained release insect repellent device of claim 33, wherein the directionality dividing plate comprises aluminium foil, paper, polymer film or its stepped construction.
35, the sustained release insect of claim 34 is kept away the agent device, and wherein the directionality dividing plate comprises polymer film or its stepped construction that is selected from polyethylene, polyester, polypropylene, polyvinyl alcohol, ethyl vinyl alcohol.
36, a kind of on food, tobacco or other running stores method of repel insects, comprise that the sustained release insect repellant device with claim 1 places near food, tobacco or other running stores.
CNB971214298A 1997-08-20 1997-08-20 Environmentally-friendly, controlled-release insect repellent device Expired - Fee Related CN1158926C (en)

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CN1158926C true CN1158926C (en) 2004-07-28

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