CN109795792A - A kind of ventilation paper and use the standby waterproof and breathable preservative film made of paper - Google Patents
A kind of ventilation paper and use the standby waterproof and breathable preservative film made of paper Download PDFInfo
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- CN109795792A CN109795792A CN201711138286.XA CN201711138286A CN109795792A CN 109795792 A CN109795792 A CN 109795792A CN 201711138286 A CN201711138286 A CN 201711138286A CN 109795792 A CN109795792 A CN 109795792A
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- 239000003755 preservative agent Substances 0.000 title claims abstract description 50
- 230000002335 preservative effect Effects 0.000 title claims abstract description 50
- 238000009423 ventilation Methods 0.000 title claims abstract description 48
- 235000013305 food Nutrition 0.000 claims abstract description 14
- 230000035699 permeability Effects 0.000 claims abstract description 9
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 9
- 230000002209 hydrophobic effect Effects 0.000 claims description 15
- 239000003153 chemical reaction reagent Substances 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 240000007594 Oryza sativa Species 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 239000005662 Paraffin oil Substances 0.000 claims description 4
- 241000287420 Pyrus x nivalis Species 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- 229920002313 fluoropolymer Polymers 0.000 claims description 4
- 239000004811 fluoropolymer Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 13
- 239000007789 gas Substances 0.000 description 13
- 229920000573 polyethylene Polymers 0.000 description 13
- 235000012055 fruits and vegetables Nutrition 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 10
- 238000004806 packaging method and process Methods 0.000 description 9
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 7
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 7
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 6
- 241001247821 Ziziphus Species 0.000 description 6
- 230000002269 spontaneous effect Effects 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 241000219109 Citrullus Species 0.000 description 4
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 240000008790 Musa x paradisiaca Species 0.000 description 3
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 240000007124 Brassica oleracea Species 0.000 description 2
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 2
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 2
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
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- 206010024642 Listless Diseases 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
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- 238000007731 hot pressing Methods 0.000 description 2
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- 239000006210 lotion Substances 0.000 description 2
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- 239000011780 sodium chloride Substances 0.000 description 2
- 241000283725 Bos Species 0.000 description 1
- 241000234295 Musa Species 0.000 description 1
- 244000131316 Panax pseudoginseng Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000021015 bananas Nutrition 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000005452 food preservative Substances 0.000 description 1
- 235000019249 food preservative Nutrition 0.000 description 1
- 235000021022 fresh fruits Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
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- 238000004321 preservation Methods 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Paper (AREA)
Abstract
The present invention discloses a kind of ventilation paper and uses the standby waterproof and breathable preservative film made of paper, the ventilation paper is that food wrapper is obtained through silicic acid anhydride, its contact angle >=120 °, with a thickness of 300-350 μm, it is covered with the air hole that aperture is 15-20 μm, air permeability 3500-6000ml/min on ventilation paper.The waterproof and breathable preservative film includes preservative film with holes (1), and the ventilation paper (2) being set on fresh-keeping fenestra (3).Present invention process is simple, and cost is relatively low, has critical function, marketing application prospect with higher extending shelf life storage or saving in freshness.
Description
Technical field
The invention belongs to food preservative technology field, in particular it relates to a kind of ventilation paper and use the paper
The waterproof and breathable preservative film of preparation.
Background technique
Although China is the first big producer of fruits and vegetables, but pick after commodity rate less than 20%, well below prosperity
The 98% of country.How the fresh-keeping rate of in the market fruits and vegetables is improved to improve the market competition level of China's fruits and vegetables and there is important meaning
Justice.
It is still a life entity living after fruit and vegetable picking, since respiration can generate various gases and moisture, if
Gas and moisture, which will generate fruits and vegetables itself, in a closed environment accelerate the ripening and aging action, while these moisture are formed
Moist environment makes bacterium be easy to breed and breed rapidly, keeps fresh fruit of vegetables overdone and rotten quickly.
Watermelon covers preservative film bacterium and increases ten times, has caused everybody positive regard, has been covered on incision using preservative film
Watermelon surface makes to form a relatively closed space inside watermelon, saves watermelon since the gas permeability of preservative film is poor
Internal moisture, this just provides a home from home to the breeding of bacterium.Butt rot, whole seller are prevented in order to extend fresh keeping time
Can dip in formalin when packing baby cabbage can extend fresh keeping time, although this extends fresh keeping time,
But having eaten the baby cabbage containing formaldehyde has very big injury to body.
Based on this, a kind of waterproof and breathable preservative film is found, gas concentration is same in discharge pernicious gas, spontaneous adjusting freshness protection package
When reduce humidity for preserving fruit and vegetable utilizing have most important meaning.
Summary of the invention
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of ventilation paper and using this it is made of paper standby
Waterproof and breathable preservative film, be used for the packaging of vegetable and fruit to realize preserving fruit and vegetable utilizing.
In order to achieve the above objectives, present invention employs the following technical solutions:
A kind of ventilation paper, the ventilation paper are that food wrapper is obtained through silicic acid anhydride, contact angle
>=120 °, with a thickness of 300-350 μm, small aperture is 15-20 μm on ventilation paper, air permeability 3500-6000ml/min.
Preferably, the food wrapper be one of food filter paper, rice paper, brown paper, pyrus nivalis paper and oilpaper or
It is a variety of.
In the present invention, the silicic acid anhydride specifically:
Food wrapper is placed in pH=4.0-5.5, is impregnated three times in the hydrophobic reagent that concentration is 10-100g/L, point
It does not dry, is then baked at 130-170 DEG C 3-5 minutes, contact angle >=120 ° at a temperature of 110-130 DEG C.
Preferably, the hydrophobic reagent is selected from fluoropolymer, silane or paraffin oil.
The present invention also provides a kind of waterproof and breathable preservative film, the waterproof and breathable preservative film includes preservative film 1 with holes, with
And it is set in the above-mentioned ventilation paper 2 on fresh-keeping fenestra 3.
Preferably, the fresh-keeping fenestra 3 is arranged on preservative film 1 with holes with latticed form.
Preferably, the fresh-keeping fenestra 3 is round, ellipse or rectangular.
A kind of waterproof and breathable preservative film of the invention, including preservative film with holes and the ventilation paper being set on preservative film.
In order to realize that excellent airing function, ventilation paper are uniformly arranged on preservative film with holes with latticed form.
The material of heretofore described preservative film with holes is polyethylene (PE), polyvinyl chloride (PVC), polyvinylidene chloride
(PVDC) or polypropylene (PP), preferred material are polyethylene (PE).
The substrate of ventilation paper in the present invention is the various packets such as food filter paper, rice paper, brown paper, pyrus nivalis paper, oilpaper
Paper, preferably food filter paper are filled, waterproof and breathable function is can be realized into its silicic acid anhydride, hydrophobic reagent is not limited to fluorine-containing
Polymeric reagent, also include various silane, the various other hydrophobic agents of paraffin oil.Preferably fluorine-containing polymer cream
Food filter paper is placed in PH=4.0-5.5, impregnates three times in the fluoropolymer-containing lotion that concentration is 50g/l, exist respectively by liquid
At a temperature of 110-130 DEG C then drying bakes 3-5 minutes under 150 DEG C of high temperature can be obtained this ventilation paper.
Preservative film with holes in the present invention is bonded with ventilation paper by modes such as polyethylene (PE) glue or hot pressing,
Preferably PE glue bonds, and schematic diagram is as shown in Figure 1.
Preferred ventilation paper has the function of excellent waterproof and breathable in the present invention, and aperture is 15-20 μm, air permeability
For 3500-6000ml/min, electromicroscopic photograph and contact angle are as shown in Fig. 2, its contact angle is 140.4 °, while the waterproof and breathable
Paper is with good stability, by still showing that excellent hydrophobic performance, contact angle are 136.8 ° at folding after folding,
As shown in Figure 3.Its contact angle is 136.3 ° after saving 60 days in air, as shown in figure 4, saving under 100% damp condition
Still there is good hydrophobic performance, contact angle is 113.6 °, as shown in figure 5, all showing good stability for 40 days.
Ventilation paper of the invention has excellent water repelling property, 5ml water is placed on ventilation paper, water is not saturating
It crosses hydrophobic paper and only evaporates in air, filter paper still has excellent hydrophobic performance after moisture evaporation, and contact angle is
139.3°。
Ventilation paper of the invention has the function of excellent barrier bacterium and dust.The NaCl solution for configuring 20g/l is made
Liquid, the NaCl aerosol for using automatic filtrate machine (TSI8130) to be prepared into as test equipment, aerosol occurs for aerosol
Grain median diameter (CMD) is 0.075 μm, and the geometric standard deviation of distribution of particles is 1.86, in the case where throughput is 83.1l/min, is prevented
The rejection rate of water air-permeable paper is 97.12%, shows that it has the function of excellent barrier dust and bacterium.
Compared with prior art, which has excellent permeability, being capable of spontaneous adjusting freshness protection package
Interior O2And CO2Balance and discharge respiration generate H2O and C2H4Equal gases, while can effectively obstruct the ash in air
Dirt and bacterium improve the fresh keeping time of fruits and vegetables, while simple process, advantage of lower cost.
It is an advantage of the invention that utilizing the spontaneous realization O of gas permeability of ventilation paper2And CO2Exchange to keeping fresh-keeping
The balance of fruits and vegetables gas, prevents because of O in bag2The too low fruits and vegetables anaerobic respiration of concentration generates alcohol fermentation and rots, while can
By the H of generation2O and C2H4It is fresh-keeping to extend to slow down bacteria breed and fruits and vegetables aging degree in wet environment for equal gases discharge
Time, the invented technology is simple, and cost is relatively low, extend shelf life storage or save freshness on have critical function, have compared with
High marketing application prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of waterproof and breathable preservative film of the present invention；Fig. 2 is that the Electronic Speculum of 1 ventilation paper of embodiment is shone
Piece and contact angle, contact angle are 140.4 °；
Fig. 3 is the folded contact angle of 1 ventilation paper of embodiment, and contact angle is 136.8 °；
Fig. 4 is variation of the aerial hydrophobic performance of 1 ventilation paper of embodiment with the time, waterproof after putting 60 days
The contact angle of air-permeable paper is still 136.3 °, shows excellent continuous stability；
Fig. 5 is that contact angle of 1 ventilation paper of embodiment under 100% damp condition changes with time, and is put 40 days
The contact angle of ventilation paper is 113.6 ° afterwards, shows good continual and steady performance；
Fig. 6 is the effect contrast figure of the different preservative films of embodiment 2 fresh-keeping banana and apple；
Fig. 7 is that the different fresh-keeping modes of embodiment 3 carry out fresh-keeping effect picture to Chinese cabbage；
Fig. 8 is effect picture of the different freshness protection package packagings of embodiment 4 after mushroom 12 days；
Fig. 9 is effect picture of the different freshness protection package packagings of embodiment 5 after jujube 10 days；
Appended drawing reference: 1- preservative film with holes, 2- ventilation paper, wherein ventilation paper and preservative film by PE glue or
The modes such as person's hot pressing bond.
Specific embodiment
With the drawings and specific embodiments, the present invention is described in further detail below.
Embodiment 1
As shown in Figure 1, a kind of waterproof and breathable preservative film of the invention, including preservative film with holes and ventilation paper, pass through
Punch is prepared into the circle that size is 0.5-3cm on preservative film or preservative film with holes can be obtained in square hole dot matrix, will
Food filter paper is placed in PH=4.0-5.5, impregnates three times in the fluoropolymer-containing lotion that concentration is 50g/l, respectively in 110-130
At a temperature of DEG C then drying bakes 3-5 minute under 150 DEG C of high temperature this ventilation paper can be obtained, by ventilation paper and
Waterproof and breathable preservative film can be obtained by PE glue or heat pressure adhesive in preservative film with holes.
Electron-microscope scanning and contact angle detection are carried out to gained ventilation paper and folded ventilation paper, as a result such as
Fig. 2 and Fig. 3, from figure 2 it can be seen that its contact angle is 140.4 °, while the ventilation paper is with good stability, leads to
It crosses and still shows excellent hydrophobic performance after folding at folding, contact angle is 136.8 °, such as Fig. 3；
As shown in figure 4, variation of the aerial hydrophobic performance of ventilation paper with the time, waterproof is saturating after putting 60 days
The contact angle of gas paper is still 136.3 °, shows excellent continuous stability；
As shown in figure 5, contact angle of the ventilation paper under 100% damp condition changes with time, after putting 40 days
The contact angle of ventilation paper is 113.6 °, shows good continual and steady performance；
Embodiment 2
For storing banana and apple, identical two bananas of size and an apple, which are individually placed to two diameters, is
In the fruit bowl of 20cm, the soul dab hand board PE that three block sizes are 3cm × 3cm ventilation paper is then posted on lid on a basin
Preservative film, wherein preservative film with a thickness of 6 μm, the diameter in hole is 2cm × 2cm.Waterproof is not pasted on lid on another basin
Air-permeable paper is with a thickness of 6 μm of soul dab hand board PE preservative film, and 5 days and later in the preservative film of ventilation paper without obvious droplet,
And there is a large amount of droplet to generate on common preservative film, the Contrast on effect of the fresh-keeping banana of different preservative films and apple as shown in fig. 6,
Illustrate that the waterproof and breathable preservative film has excellent permeability.
Embodiment 3
For storing Chinese cabbage, weigh essentially identical 8, Chinese cabbage of size respectively, be respectively placed in air (no film),
Seal freshness protection package, 2 hole freshness protection packages, 8 hole freshness protection packages, 18 hole freshness protection packages, the freshness protection package for posting 2 pieces of filter paper, the guarantor for posting 8 pieces of filter paper
Fresh bag posts in the freshness protection package of 24 pieces of filter paper, then stores in air at room temperature, wherein freshness protection package be it is wonderful it is clean thicken freshness protection package,
Size is 35cm × 25cm, 8 μm thick, and pore size is 2cm × 2cm, and filter paper passes through silicic acid anhydride, size 3cm
× 3cm, by preservation and freshness in 31 days, as a result as shown in fig. 7,8 pieces of filter paper freshness protection packages and 8 hole freshness protection packages as can be seen from Figure 7
Chinese cabbage fresh-keeping effect it is preferable, but from the point of view of color freshness, 8 pieces of filter paper freshness protection packages were wanted at 31 days compared with 8 hole freshness protection packages
Good, key factor can be reduced Chinese cabbage evaporation in air, 2 holes in 8 pieces of filter paper film freshness protection packages while vapor is discharged
Occur to rot first with the Chinese cabbage of 2 pieces of filter membrane freshness protection package packagings, main cause is that it is not enough to be discharged respiration generation
Moisture, while being easy to happen and rotting under the effect of wet environment, bacterium and oxygen, air, 24 holes, 24 pieces of filter paper films are protected
The Chinese cabbage of fresh bag packaging then occurs significantly doing listless.
Embodiment 4
For storing mushroom, essentially identical 8 parts of mushroom of big smallest number are weighed respectively, are individually placed to air, sealing is protected
Fresh bag, 18 hole freshness protection packages, the freshness protection package for posting 8 pieces of filter paper, the freshness protection package for posting 18 pieces of filter paper, posts 8 pieces of oxen at 8 hole freshness protection packages
It the freshness protection package of mulberry paper and posts in 18 pieces of brown paper freshness protection packages, is then stored in air at room temperature, wherein freshness protection package is wonderful clean increasing
Thicker freshness protection package, size are 30cm × 20cm, and the size in hole is 2cm × 2cm, and with a thickness of 8 μm, filter paper and brown paper are all
By silicic acid anhydride, size is 3cm × 3cm, and the result after 12 days is as shown in Fig. 8 and table 1, from Fig. 8 and table 1
It can be seen that the fresh-keeping effect of 18 filter paper preservative films is best, air, 8 holes, the mushroom appearance in 18 hole freshness protection packages obviously do it is listless, and
The mushroom for sealing freshness protection package, 8 film filter papers, 8 film brown paper freshness protection packages and 18 brown paper freshness protection package packagings occurs in various degree
It rots, wherein the most serious that sealing freshness protection package is rotten.
Effect of the different freshness protection package packagings of table 1 after mushroom 12 days
Embodiment 5
For storing winter jujube, essentially identical 8 parts of winter jujube of big smallest number are weighed respectively, are seated in air, sealing respectively
Freshness protection package, 18 hole freshness protection packages, the freshness protection package for posting 8 pieces of filter paper, the freshness protection package for posting 18 pieces of filter paper, posts 8 pieces at 8 hole freshness protection packages
It in the freshness protection package of brown paper and the freshness protection package for posting 18 pieces of brown paper, is then stored in air at room temperature, wherein freshness protection package is wonderful
Clean to thicken freshness protection package, size is 25cm × 17cm, and with a thickness of 8 μm, pore size is 0.5cm × 0.5cm, filter paper and ox
Mulberry paper passes through silicic acid anhydride, and size is 1cm × 1cm, the fresh-keeping effect after 10 days as shown in Fig. 9 and table 2, by Fig. 9 and
Table 2 can be seen that the fresh-keeping effect of 18 filter paper freshness protection packages is best, close since winter jujube respiration is strong and injures vulnerable to carbon dioxide
The freshness protection package surface for sealing freshness protection package packaging jujube generates a large amount of Water vapor condensation into water droplet, has certain ethanol gas after opening
Taste, and the freshness protection package of ventilation paper is posted due to CO in the spontaneous adjusting freshness protection package of its good permeability energy2And O2Concentration, simultaneously
It is able to maintain certain humidity, prevents from causing because of dehydration shrivelled.
Effect of the different freshness protection package packagings of table 2 after jujube 10 days
It, being capable of O in spontaneous adjusting freshness protection package due to the spontaneous adjustment effect of gas in waterproof and breathable preservative film2And CO2Amount
To maintain O2And CO2Balance, while the gases such as vapor and ethylene can be discharged, the growth for reducing bacterium and ethylene are to fruit
The aging of accelerating the ripening of vegetable, while the waterproof ventilated membrane has the function of excellent barrier dust and bacterium, cost price is lower, technique letter
It is single, it will not influence the mechanical strength of freshness protection package itself, therefore there is extensive market application value.
The above is only a preferred embodiment of the present invention, the paper used in the present invention is not limited only to food filter paper
And brown paper, it also include that various wrapping papers, the hydrophobic agents such as rice paper, pyrus nivalis paper, oilpaper are not limited only to fluorine-containing polymer
Property reagent, also include that various hydrophobic agents, the material of preservative film such as various silane, paraffin oil are not limited only to polyethylene
(PE), include while also the various preservative films such as polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polypropylene (PP), do not taking off
In the case where from the principle of the invention, to some improve and perfects of the technique, protection scope of the present invention is belonged to.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, it will be apparent to an ordinarily skilled person in the art that technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (8)
1. a kind of ventilation paper, which is characterized in that the ventilation paper is that food wrapper is obtained through silicic acid anhydride,
Its contact angle >=120 ° is covered with the air hole that aperture is 15-20 μm with a thickness of 300-350 μm on ventilation paper, air permeability is
3500-6000ml/min。
2. ventilation paper according to claim 1, which is characterized in that the food wrapper be food filter paper, rice paper,
One of brown paper, pyrus nivalis paper and oilpaper are a variety of.
3. ventilation paper according to claim 1, which is characterized in that the silicic acid anhydride specifically:
Food wrapper is placed in pH=4.0-5.5, impregnates three times in the hydrophobic reagent that concentration is 10-100g/L, exists respectively
It dries, is then baked at 130-170 DEG C 3-5 minutes, contact angle >=120 ° at a temperature of 110-130 DEG C.
4. ventilation paper according to claim 3, which is characterized in that the hydrophobic reagent be selected from fluoropolymer,
Silane or paraffin oil.
5. a kind of waterproof and breathable preservative film, which is characterized in that the waterproof and breathable preservative film includes preservative film with holes (1), and
The ventilation paper described in claim 1 (2) being set on fresh-keeping fenestra (3).
6. waterproof and breathable preservative film according to claim 5, which is characterized in that the fresh-keeping fenestra (3) is with latticed form
It is arranged on preservative film with holes (1).
7. waterproof and breathable preservative film according to claim 5, which is characterized in that the material of the preservative film with holes is poly- second
One of alkene, polyvinyl chloride, polyvinylidene chloride and polypropylene are a variety of.
8. waterproof and breathable preservative film according to claim 5, which is characterized in that the fresh-keeping fenestra (3) is round, oval
Shape is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711138286.XA CN109795792B (en) | 2017-11-16 | 2017-11-16 | Waterproof breathable paper and waterproof breathable preservative film prepared from same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711138286.XA CN109795792B (en) | 2017-11-16 | 2017-11-16 | Waterproof breathable paper and waterproof breathable preservative film prepared from same |
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| Publication Number | Publication Date |
|---|---|
| CN109795792A true CN109795792A (en) | 2019-05-24 |
| CN109795792B CN109795792B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711138286.XA Expired - Fee Related CN109795792B (en) | 2017-11-16 | 2017-11-16 | Waterproof breathable paper and waterproof breathable preservative film prepared from same |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002191242A (en) * | 2000-12-27 | 2002-07-09 | Nisshoku Corp | Fruit-protecting bag |
| CN202272320U (en) * | 2011-10-13 | 2012-06-13 | 徐寿海 | Air-permeable plastic film |
| JP2013193759A (en) * | 2012-03-19 | 2013-09-30 | Sumitomo Bakelite Co Ltd | Packaging bag for vegetable and fruit, and packaging body for vegetable and fruit |
| CN103407650A (en) * | 2013-07-16 | 2013-11-27 | 达成包装制品（苏州）有限公司 | Waxed aquatic product carton and manufacturing technology thereof |
| CN103946322A (en) * | 2012-10-13 | 2014-07-23 | 东洋铝株式会社 | Water- and oil-repellent coating film and article containing same |
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2017
- 2017-11-16 CN CN201711138286.XA patent/CN109795792B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| JP2002191242A (en) * | 2000-12-27 | 2002-07-09 | Nisshoku Corp | Fruit-protecting bag |
| CN202272320U (en) * | 2011-10-13 | 2012-06-13 | 徐寿海 | Air-permeable plastic film |
| JP2013193759A (en) * | 2012-03-19 | 2013-09-30 | Sumitomo Bakelite Co Ltd | Packaging bag for vegetable and fruit, and packaging body for vegetable and fruit |
| CN103946322A (en) * | 2012-10-13 | 2014-07-23 | 东洋铝株式会社 | Water- and oil-repellent coating film and article containing same |
| CN103407650A (en) * | 2013-07-16 | 2013-11-27 | 达成包装制品（苏州）有限公司 | Waxed aquatic product carton and manufacturing technology thereof |
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| 刘伟等: "育果袋纸防水剂的现状及展望", 《2005全国造纸化学品开发应用技术研讨会论文集》 * |
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