CN110447709A - A kind of fresh-keeping laminates of chlorine dioxide, preparation method and application - Google Patents
A kind of fresh-keeping laminates of chlorine dioxide, preparation method and application Download PDFInfo
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- CN110447709A CN110447709A CN201910643494.8A CN201910643494A CN110447709A CN 110447709 A CN110447709 A CN 110447709A CN 201910643494 A CN201910643494 A CN 201910643494A CN 110447709 A CN110447709 A CN 110447709A
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- Prior art keywords
- chlorine dioxide
- fresh
- keeping
- laminates
- substrate
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/152—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
Abstract
The invention discloses a kind of fresh-keeping laminates of chlorine dioxide, including at least first base material, the second substrate, adhesive and chlorine dioxide releasing agent, the mixture of described adhesive and chlorine dioxide releasing agent is uniformly distributed between first base material and the second substrate and the heated chlorine dioxide layer for being pressed to form densification, first base material and the second substrate fit closely under adhesive effect with chlorine dioxide layer, the first base material is gas permeable material, and the content of chlorine dioxide is 0.5 ~ 50g/ square metres in the fresh-keeping laminates of chlorine dioxide.Product of the present invention simple process, can continous way production, high production efficiency, production cost are low.
Description
Technical field
The invention belongs to postharvest technology of fruits and vegetables field, it is related to a kind of fresh-keeping laminates of chlorine dioxide, preparation method and its answers
With.
Background technique
Chlorine dioxide (ClO2) have the characteristics that wide sterilization spectrum, bactericidal effect be good, noresidue, it is classified as by the World Health Organization
Al grades of disinfection sanitizers.Its bactericidal effect is 2.5 times higher than general chlorinated products, does not generate " three cause " product；It can prevent simultaneously
The intracellular methionine of fruits and vegetables is converted to ethylene and destroys the pernicious gases such as generated ethylene, delays fruits and vegetables aging.Chinese state
Family standard GB2760 is by stable state ClO2Food additives are classified as, are processed for preserving fruit and vegetable utilizing and fish.
Although China's food additives are using sanitary standard GB2760 early in 1996 just by the chlorine dioxide of stable state batch
It is mutatis mutandis in preserving fruit and vegetable utilizing, but due to chlorine dioxide have stronger oxidisability, once generate be difficult to it is stable in a long time
In the presence of production application is restricted.
In the market there are many Chlorine dioxide production, main chlorine dioxide generating device, two-spot packaging chlorine dioxide and
Unitary packs chlorine dioxide slow-release preparation agent.Such as various chlorine dioxide generating devices, the device is complicated, and use cost is high, gives chlorine dioxide
Production, storage, transport use bring inconvenience, limit the extensive use of chlorine dioxide.Mainstream chlorine dioxide in the market
Antistaling agent be two-spot pack product, product storage it is relatively stable, but be watered release chlorine dioxide after again secondary dilution use,
Using being more troublesome.Chinese patent, ZL200510045006.1 discloses unitary packaging chlorine dioxide slow-release preparation agent, easy to use；
107549298 A of Chinese patent CN has disclosed a kind of solid-state chloride dioxide sustained release agent, containing coating agent, adhesive etc., uses
Paper and non-woven fabrics are packed, and are packed for unitary.The controlled release formulation of solid chlorine dioxide of above-mentioned unitary packaging, can be limited to release
Releasing chlorine dioxide diffusion is poor, oxidisability is strong, is easy to produce bleaching medicine wound close to the position of pack, easily causes fresh-keeping effect
It is inhomogenous.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of fresh-keeping laminates of chlorine dioxide.
It is a further object of the invention to provide a kind of production methods of the fresh-keeping laminates of chlorine dioxide, and application.
The fresh-keeping laminates of chlorine dioxide prepared by the present invention can absorb the steam in environment, slowly in use environment
It is fresh-keeping to release chlorine dioxide progress；The fresh-keeping laminates of chlorine dioxide provided by the invention are after the completion of preparation, Ke Yigen
It according to chlorine dioxide quality size and Package size size that preserving fruit and vegetable utilizing needs, is arbitrarily cut, when use will cut
Laminates are tiled/are covered in vegetable and fruit packaging case, and compared to the pack of traditional unitary packaging, size is bigger, is more evenly distributed.It cuts
Chlorine dioxide releasing agent powder will not lose powder or scaling-off because of adhesive bonding afterwards.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of fresh-keeping laminates of chlorine dioxide include at least first base material, the second substrate, adhesive and chlorine dioxide release
The mixture of agent, described adhesive and chlorine dioxide releasing agent is uniformly distributed between first base material and the second substrate and heated
Fine and close chlorine dioxide layer, first base material and the second substrate is pressed to form closely to paste under adhesive effect with chlorine dioxide layer
It closes.
The mixture of above-mentioned adhesive and chlorine dioxide releasing agent is uniformly distributed between first base material and the second substrate, can be with
It is uniformly distributed by the realization of quantitative dusting technology, or transfer techniques realization can be quantified by pulvis；First base material and the second base
Material close adhesion under adhesive effect by heating pressurization, from the appearance, the scraps of paper dress or lamellar being integrated, the two of bonding
Kind substrate is not under the premise of destroying, it is difficult to separate；Chlorine dioxide releasing agent is fitted closely by heating pressurization with adhesive, is bonded
Chlorine dioxide releasing agent afterwards holds tightly together with adhesive, even if after cutting, incision does not lose powder, is not scaling-off.
The first base material is gas permeable material.
The content of chlorine dioxide is 0.5 ~ 50g/ square metres in the fresh-keeping laminates of chlorine dioxide.
The content of chlorine dioxide in the fresh-keeping laminates of chlorine dioxide can be tested by conventional chemical analysis method
Out.
The first base material is selected from non-woven fabrics, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp paper, straw paper, beats
Hole film, punching leaching membrane paper.The preferred quality of first base material is 10 ~ 80g/ square metres.
Second substrate can be selected from gas permeable material or non-breathable material, selected from polyethylene film, polyester film, gather
Polypropylene film, polyvinyl chloride film, paper-plastic composite film, non-woven fabrics, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp paper, grass
Starch paper, perforated film, punching leaching membrane paper；The preferred quality of second substrate is 10 ~ 60g/ square metres.
The grammes per square metre of the fresh-keeping laminates unit area of the chlorine dioxide is 40 ~ 300g/ square metres.
The chlorine dioxide releasing agent includes primary dose, acid-releasing agent and stabilizer；Primary dose selected from sodium chlorite, sub- chlorine
The mixture of sour potassium or both, acid-releasing agent are selected from solid acid or quaternary ammonium salt, and stabilizer is selected from magnesium stearate, stearic acid, polyethylene
Wax, magnesium silicate, silica；Mass ratio shared by primary dose is 10 ~ 60% in the chlorine dioxide releasing agent, matter shared by acid-releasing agent
For amount than being 10 ~ 70%, mass ratio shared by stabilizer is 20 ~ 85%.
The content of chlorine dioxide in the fresh-keeping laminates of chlorine dioxide, can according to primary dose used and the ratio of acid-releasing agent,
According to chemical theory knowledge, it is calculated, by the numerical value being calculated, since material purity, factor of production etc. influence,
Actual value may be deviated with theoretical value, and method the most accurate is to obtain accurate result by chemical analysis test.
The solid acid type is more, is selected from oxalic acid, tartaric acid, citric acid, can be carrier loaded liquid mineral acid
Solid acid.
The quaternary ammonium salt is selected from benzyltriethylammoinium chloride, octadecyltrimethylammonium chloride, beet alkali hydrochlorate.
Chlorine dioxide releasing agent can pass through 50 meshes.Eye diameter corresponding to 50 meshes is 300 microns, uses particle size analyzer
It is detected, numerical value≤300 micron particle diameter D98.Preferred chlorine dioxide releasing agent can be by 80 meshes, or pass through
Particle size analyzer detects numerical value≤180 micron particle diameter D98.
Described adhesive is solid, powdery hot melt adhesive, and the mass ratio of described adhesive and chlorine dioxide releasing agent is 1:5 ~ 5:
1。
Described adhesive can pass through 50 meshes.Preferred adhesive can detect particle by 80 meshes, or by particle size analyzer
Numerical value≤180 micron diameter D98.
The solid, powdery hot melt adhesive can be selected from EVA rubber powder, TPU rubber powder, polyolefin rubber powder, PA hot-melt adhesive powder, PE
Hot-melt adhesive powder；It can be one or more of mixing；The melting temperature of required solid, powdery hot melt adhesive preferably≤120 DEG C, more preferably
Melting temperature≤100 DEG C.
There can also be third substrate on the upper layer of second substrate, adhesive and chlorine dioxide releasing agent are uniformly distributed
Between two substrates and third substrate, the second substrate layer and third substrate layer are closely glued under adhesive effect by heating pressurization
It closes, chlorine dioxide releasing agent is fitted closely by heating pressurization with adhesive；Third substrate is selected from polyethylene film, polyester
Film, polypropylene film, polyvinyl chloride film, paper-plastic composite film, non-woven fabrics, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp
Paper, straw paper, perforated film, punching leaching membrane paper；The quality of the third substrate is 6 ~ 60g/ square metres.
The preparation method of the fresh-keeping laminates of the chlorine dioxide, includes the following steps.
A, the first base material described in preparation and the second substrate.
B, the adhesive described in preparation makes adhesive meet the requirement of 50 meshes by crushing or being sieved.
Breaking method and form are varied, and common disintegrating apparatus has Universalpulverizer, micronizer, airslide disintegrating mill
Deng；Distinct device control smashing fineness method is different, with the smashing fineness of Universalpulverizer and feed particles degree size, electricity
Machine revolving speed, separation power of fan, screened port size etc. are related；Airslide disintegrating mill smashing fineness and compressed air air pressure size,
Charging rate, grading wheel frequency etc. are related.
Binder materials can satisfy the requirement of 50 meshes, it is convenient to omit crush or be sieved process.
C, the raw material of the chlorine dioxide releasing agent described in preparation, each raw material independently by crushing or being sieved, met 50 mesh
The requirement of sieve.Raw material can satisfy the requirement of 50 meshes, it is convenient to omit crush or be sieved process.
D, adhesive and each ingredient of chlorine dioxide releasing agent are proportionally uniformly mixed, form mixture.
The mixing of adhesive and sulfur dioxide releasing agent can be carried out using a variety of mixing apparatus, and common mixing apparatus includes
V-Mixer, horizontal double spiral shell bag mixing machines, vertical biconical shape mixing machine, multi-dimensional movement mixing machine etc..
Above-mentioned B ~ D step, raw material met the requirement of 50 meshes, can also will be former in addition to raw material is individually crushed or is sieved
Material after mixing, then is crushed, and Particle size requirements are met.
E, the mixture that will be prepared in step D is spread in uniform on first base material or the second substrate, and then covering is another
Substrate obtains the fresh-keeping laminates of chlorine dioxide under heating, pressurization.
Dusting combination process can be continous way, or discontinuous, discontinuous production efficiency are relatively slightly lower.It is excellent
Choosing uses continous way dusting combination process, and E step work in every is completed by equipment complex.There are two equipment complexes unreels,
Respectively correspond unreeling for two kinds of substrates, a winding, it is corresponding it is compound after material winding, quantitative dusting loading amount is (or quantitative
Powder transfer device), it is compound to complete the heating pressurization of dusting latter two material for corresponding uniform dusting, a set of heating pressurizing device.Heating
Pressurize it is compound can take many forms, conventional electric heating or heat-conducting oil heating, pressurization generally using rubber rollers use hydraulic cylinder
Or cylinder generates pressure, driving rubber rollers are completed to pressurize, and usually heating pressurization is synchronous progress, and is continuous work；It is preferred that
Heating pressuring method have heating method inside rotating roller, substrate is run outside heating roller with roller rotation, heated
Journey is completed at the same time pressurization.
The fresh-keeping laminates of the chlorine dioxide being prepared, can be according to the loading amount of fruits and vegetables, dosage or according to the ruler of packing case
It is very little, product of the invention is subjected to cutting for any required size.
Application of the fresh-keeping laminates of the chlorine dioxide in preserving fruit and vegetable utilizing.Applicable fruit and vegetable kind includes apple
Fruit, pears, peach, apricot, plum, hawthorn, Kiwi berry, mango, banana, lichee, cherry, garlic stems, potato, sweet potato, celery, ocean
Green onion, but not limited thereto.
Application of the fresh-keeping laminates of the chlorine dioxide in preserving fruit and vegetable utilizing, application method are fairly simple.Different water
Fruit vegetable adopts post-processing process, technique requires difference, but is required to by harvesting, classification, rejects mass defect or have pest and disease damage
Fruits and vegetables, then packed, finally circulated or stored.The fresh-keeping laminates of chlorine dioxide of the present invention are packed in postharvest fruit and vegetable
When use, packaging when, each independent packaging (pouch, carton, transfer basket) is put into a piece of fresh-keeping laminates.It can spread
In bottom, top can also be placed.The fruits and vegetables of storage pre-cooling or Long-term Cold Storage, it is proposed that used after pre-cooling.
Present invention has the advantages that.
1, simple production process of the present invention is easy to quality control, can continous way production, high production efficiency, recruitment be few, production
It is at low cost.
2, product of the present invention can be cut on demand, easy to use.
Area coverage is big when the present invention uses, of good preservation effect, can avoid injuring caused by medicament local concentration is big.
Specific embodiment
It is right in conjunction with specific embodiments in order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood
Technical solution of the present invention is described in detail, and the present invention is not limited to the ranges that embodiment is recorded.Concrete model is not indicated
Raw material be commercially available conventional raw material, be not specified actual conditions test method be conventional method known in the art and routine
Condition.
Adhesive therefor and specification are as follows in embodiment.
EVA rubber powder (ethylene-vinyl acetate resin), commercial solid low temperature EVA rubber powder, 50 ~ 60 mesh.
TPU rubber powder (thermoplastic polyurethane elastomer) is selected from Desmopan TPU 537M, softening point temperature≤95 DEG C, powder
Shape, mistake 50 are spare after sieving.
LEPE rubber powder (low density polyethylene (LDPE) rubber powder), commercially available, solids hot melt rubber powder, softening point: 87 DEG C, partial size: 50-120
Mesh.
Retardation PES hot melt adhesive powder, commercially available, solids hot melt rubber powder, softening point temperature≤95 DEG C, 60 ~ 80 mesh.
PA hot-melt adhesive powder, commercially available, solids hot melt rubber powder, softening point temperature≤100 DEG C, 50 ~ 80 mesh.
The following are specific embodiments.
Embodiment 1.
The composition of the fresh-keeping laminates 1 of chlorine dioxide are as follows:
First base material: non-woven fabrics, specification are 40g/ square metres；Second substrate: paper-plastic composite film, specification are 45g/ square metres.
Adhesive: EVA rubber powder；Chlorine dioxide releasing agent (composition and mass ratio): sodium chlorite 10%, anhydrous citric acid
20%, stabilizer magnesium silicate supplies 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 1:1, adhesive and the mixing of chlorine dioxide releasing agent in laminates
The quality of object is 50g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 135g/ square metres, and wherein the content of chlorine dioxide is 1.8g/ square metres.
The preparation method of the fresh-keeping laminates 1 of chlorine dioxide:
A, prepare above-mentioned first base material and the second substrate.
B, prepare above-mentioned adhesive.
C, the raw material of the chlorine dioxide releasing agent in preparation, each raw material met wanting for 50 meshes by crushing or being sieved
It asks.
D, adhesive and each ingredient of chlorine dioxide releasing agent are proportionally uniformly mixed, form mixture.
E, the mixture that will be prepared in step D is spread in uniform in first base material, then covers the second substrate, is being heated
Under (100 ~ 120 DEG C), pressurization, the fresh-keeping laminates of chlorine dioxide are obtained.
In the fresh-keeping laminates 1 of the chlorine dioxide of preparation, the mixture of adhesive and chlorine dioxide releasing agent is uniformly distributed
Between one substrate and the second substrate and heated fine and close chlorine dioxide layer, first base material and the second substrate of being pressed to form is viscous
Mixture effect is lower to be fitted closely with chlorine dioxide layer.
Embodiment 2
The composition of the fresh-keeping laminates 2 of chlorine dioxide are as follows:
First base material: non-woven fabrics, specification are 25 g/ square metres；Second substrate: paper-plastic composite film, specification are 45g/ square metres.
Adhesive: EVA rubber powder；Chlorine dioxide releasing agent (composition and mass ratio): sodium chlorite 5%, anhydrous citric acid 10%,
Stabilizer magnesium silicate supplies 100%；
Adhesive and chlorine dioxide releasing agent mass ratio are 1:2, and adhesive and chlorine dioxide discharge agent composition in laminates
Quality is 20g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 90g/ square metres, and wherein the content of chlorine dioxide is 0.5g/ square metres.
The preparation method of the fresh-keeping laminates 2 of chlorine dioxide: with the preparation side of the fresh-keeping laminates 1 of chlorine dioxide in embodiment 1
Method.
Embodiment 3
The composition of the fresh-keeping laminates 3 of chlorine dioxide are as follows:
First base material: non-woven fabrics, specification are 25 g/ square metres；Second substrate: paper-plastic composite film, specification are 45g/ square metres.
Adhesive: TPU rubber powder；Chlorine dioxide releasing agent (composition and mass ratio): sodium chlorite 20%, anhydrous citric acid
38%, stabilizer silica supplies 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 1:5, adhesive and the mixing of chlorine dioxide releasing agent in laminates
The quality of object is 170g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 240g/ square metres, and wherein the content of chlorine dioxide is 21g/ square metres.
The preparation method of the fresh-keeping laminates 3 of chlorine dioxide: with the preparation side of the fresh-keeping laminates 1 of chlorine dioxide in embodiment 1
Method.
Embodiment 4
The composition of the fresh-keeping laminates 4 of chlorine dioxide are as follows:
First base material: punching PET film, specification are 10 g/ square metres；Second substrate: PET film, specification are 10g/ square metres.
Adhesive: TPU rubber powder；Chlorine dioxide releasing agent (composition and mass ratio): sodium chlorite 29%, anhydrous citric acid
55%, stabilizer silica supplies 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 1:5, adhesive and the mixing of chlorine dioxide releasing agent in laminates
The quality of object is 280g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 300g/ square metres, and wherein the content of chlorine dioxide is 50g/ square metres.
The preparation method of the fresh-keeping laminates 4 of chlorine dioxide: with the preparation side of the fresh-keeping laminates 1 of chlorine dioxide in embodiment 1
Method.
Embodiment 5
The composition of the fresh-keeping laminates 5 of chlorine dioxide are as follows:
First base material: air-permeable paper, specification are 30g/ square metres；Second substrate: punching paper-plastic composite film, specification are 40g/ squares
Rice.
Adhesive: EVA rubber powder and TPU rubber powder, mass ratio 1:1；Chlorine dioxide releasing agent (composition and mass ratio): sub- chlorine
Sour potassium 15%, anhydrous acid 40%, stabilizer (magnesium silicate and silica, mass ratio 1:1) supply 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 5:1, adhesive and the mixing of chlorine dioxide releasing agent in laminates
The quality of object is 120g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 190g/ square metres, and wherein the content of chlorine dioxide is 1.9g/ square metres.
The preparation method of the fresh-keeping laminates 5 of chlorine dioxide:
A, prepare above-mentioned first base material and the second substrate.
B, prepare above-mentioned adhesive.
C, the raw material of the chlorine dioxide releasing agent in preparation, each raw material met wanting for 50 meshes by crushing or being sieved
It asks.
D, adhesive and each ingredient of chlorine dioxide releasing agent are proportionally uniformly mixed, form mixture.
E, the mixture that will be prepared in step D is spread in uniform on the second substrate, then covers first base material, is heating
Under (100 ~ 120 DEG C), pressurization, the fresh-keeping laminates of chlorine dioxide are obtained.
In the fresh-keeping laminates 5 of the chlorine dioxide of preparation, the mixture of adhesive and chlorine dioxide releasing agent is uniformly distributed
Between one substrate and the second substrate and heated fine and close chlorine dioxide layer, first base material and the second substrate of being pressed to form is viscous
Mixture effect is lower to be fitted closely with chlorine dioxide layer.
Embodiment 6
The composition of the fresh-keeping laminates 6 of chlorine dioxide are as follows:
First base material: air-permeable paper, specification are 30g/ square metres；Second substrate: polyethylene breathable film, specification are 80g/ square metres.
Adhesive: LDPE rubber powder, TPU rubber powder, EVA rubber powder, mass ratio 1:1:1；Chlorine dioxide releasing agent (composition and matter
Measure ratio): potassium chlorite 20%, anhydrous acid 48%, stabilizer (magnesium stearate and stearic acid, mass ratio 1:1) supply 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 1:2.5, and adhesive and chlorine dioxide releasing agent are mixed in laminates
The quality for closing object is 175g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 285g/ square metres, and wherein the content of chlorine dioxide is 15.8g/ square metres.
The preparation method of the fresh-keeping laminates 6 of chlorine dioxide: with the preparation side of the fresh-keeping laminates 5 of chlorine dioxide in embodiment 5
Method.
Embodiment 7
The composition of the fresh-keeping laminates 7 of chlorine dioxide are as follows:
First base material: air-permeable paper, specification are 25g/ square metres；Second substrate: non-woven fabrics, specification are 50g/ square metres.
Adhesive: TPU rubber powder, PA rubber powder, mass ratio 3:1；Chlorine dioxide releasing agent (composition and mass ratio): chloric acid acid
Sodium 18%, anhydrous acid 8%, anhydrous citric acid 25%, stabilizer magnesium stearate supply 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 2.5:1, and adhesive and chlorine dioxide releasing agent are mixed in laminates
The quality for closing object is 140g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 215g/ square metres, and wherein the content of chlorine dioxide is 5.4g/ square metres.
The preparation method of the fresh-keeping laminates 7 of chlorine dioxide: with the preparation side of the fresh-keeping laminates 5 of chlorine dioxide in embodiment 5
Method.
Embodiment 8
The composition of the fresh-keeping laminates 8 of chlorine dioxide are as follows:
First base material: air-permeable paper, specification are 25g/ square metres；Second substrate: polyester film, specification are 16g/ square metres.
Adhesive: TPU rubber powder, PA rubber powder, mass ratio 3:1；Chlorine dioxide releasing agent (composition and mass ratio): chloric acid acid
Sodium 18%, anhydrous acid 8%, anhydrous citric acid 25%, stabilizer magnesium stearate supply 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 1:3.5, and adhesive and chlorine dioxide releasing agent are mixed in laminates
The quality for closing object is 185g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 226g/ square metres, and wherein the content of chlorine dioxide is 19.3g/ square metres.
The preparation method of the fresh-keeping laminates 8 of chlorine dioxide: with the preparation side of the fresh-keeping laminates 5 of chlorine dioxide in embodiment 5
Method.
Embodiment 9
The composition of the fresh-keeping laminates 9 of chlorine dioxide:
Increase third substrate layer on fresh-keeping 7 second substrate of laminates of chlorine dioxide, increases adhesive and chlorine dioxide release newly
Agent.
Third substrate: blotting paper, specification are 20g/ square metres.
Adhesive: TPU rubber powder, PA rubber powder, mass ratio 3:1；Chlorine dioxide releasing agent (composition and mass ratio): chloric acid acid
Sodium 18%, anhydrous acid 8%, anhydrous citric acid 25%, stabilizer magnesium stearate supply 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 1:3, the adhesive and two among first base material and third substrate
The mixture quality of chlorine monoxid releasing agent is 60g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 295g/ square metres, and wherein the content of chlorine dioxide is 10.4g/ square metres.
The preparation method of the fresh-keeping laminates 9 of chlorine dioxide:
A, prepare the above-mentioned fresh-keeping laminates 7 of chlorine dioxide and third substrate.
B, prepare above-mentioned adhesive.
C, the raw material of the chlorine dioxide releasing agent in preparation, each raw material met wanting for 50 meshes by crushing or being sieved
It asks.
D, adhesive and each ingredient of chlorine dioxide releasing agent are proportionally uniformly mixed, form mixture.
E, the mixture that will be prepared in step D is spread in uniform on the second substrate of the fresh-keeping laminates 7 of chlorine dioxide, so
Third substrate is covered afterwards, under heating (100 ~ 120 DEG C), pressurization, obtains the fresh-keeping laminates of chlorine dioxide.
In the fresh-keeping laminates 9 of the chlorine dioxide of preparation, the mixture of adhesive and chlorine dioxide releasing agent is uniformly distributed
Between one substrate and the second substrate and heated fine and close chlorine dioxide layer, first base material and the second substrate of being pressed to form is viscous
Mixture effect is lower to be fitted closely with chlorine dioxide layer.
Embodiment 10
The composition of the fresh-keeping laminates 10 of chlorine dioxide:
Increase third substrate layer on fresh-keeping 8 second substrate of laminates of chlorine dioxide, increases adhesive and chlorine dioxide release newly
Agent.
Third substrate: breathable polyethylene film, specification are 20g/ square metres.
Adhesive: TPU rubber powder, PA rubber powder, mass ratio 3:1；Chlorine dioxide releasing agent (composition and mass ratio): chloric acid acid
Sodium 18%, anhydrous acid 8%, 25% stabilizer magnesium stearate of anhydrous citric acid supply 100%.
Adhesive and chlorine dioxide releasing agent mass ratio are 1:3.5, adhesive among first base material and third substrate and
The mixture quality of chlorine dioxide releasing agent is 45g/ square metres.
The fresh-keeping laminates of chlorine dioxide are 291g/ square metres, and wherein the content of chlorine dioxide is 24g/ square metres.
The preparation method of the fresh-keeping laminates 10 of chlorine dioxide: with the preparation of the fresh-keeping laminates 10 of chlorine dioxide in embodiment 10
Method.
Embodiment 11
Application of the fresh-keeping laminates of chlorine dioxide in mango fresh-keeping
Test process:
By the fresh-keeping laminates of above-mentioned preparation, the use of 20*15cm size is cut into.
After medium well mango harvesting, it is classified, is selected, is packed into carton, packed using blotting paper, every case dress
10kg mango, the position in vanning above every layer of mango are put into the fresh-keeping laminates of chlorine dioxide, put 3 altogether, be placed in
15 ~ 20 DEG C of ambient storages.It is handled using fresh-keeping laminates 1,2,5, not cook the mango of any processing as control, the above processing is every
Kind 5 casees of test.
Test result:
It was stored by 20 days, control mango has that turning yellow occurs in 17% mango or softening phenomenon, the disease incidence for anthracnose occur are
20.4%.By the mango that fresh-keeping laminates 1,2,5 are handled, significant change does not occur for fruit color, and the hair of anthracnose occurs in fruit
Sick rate is respectively 1.2% and 3.6%.
Test result shows that the fresh-keeping laminates processing of chlorine dioxide can be softened with delayed fruit after-ripening, reduces anthracnose
Disease incidence has good result to mango fresh-keeping.
Embodiment 12
Application of the fresh-keeping laminates of chlorine dioxide in Kiwi berry is fresh-keeping.
Test process:
By the fresh-keeping laminates of above-mentioned preparation, the use of 25*20cm size is cut into.
After medium well Hayward Kiwi berry harvesting, it is classified, is selected, is packed into plastics transfer basket, naked fruit, every case dress
15kg Kiwi berry is respectively put into a chlorine dioxide fresh-keeping laminates in intermediate and top layer position when vanning, and every basket puts 2
, it is placed in 0 ~ 1 DEG C of ambient storage.It is handled respectively using the fresh-keeping laminates 3,4,6 ~ 10 of chlorine dioxide, not do any processing
Kiwi berry is control, every kind of 10 casees of test of the above processing.By 115 days refrigeration statistical results.
Testing index:
The hardness of fruit: it is detected using the fruit hardness meter of 11mm probe.
Fruit soluble solids content: PAL-1 hand-held saccharometer is used.
Rotting rate: the ratio that rotten or mildew fruit quality accounts for gross mass occurs.
Test result:
When Kiwi berry has just been put into refrigeration house storage 0 day, detection Kiwi berry Average fruit hardness is 8.7kg/cm2, and fruit is average solvable
Property solid content be 8.4%, no rotten fruit/mildew fruit.
It was refrigerated by 115 days, the quality index such as following table of the different fresh-keeping laminates processing Kiwi berrys of chlorine dioxide.
Test result shows: compared with the control, can delay to refrigerate Mi by the fresh-keeping laminates processing of 105 days refrigeration chlorine dioxide
Monkey Peach fruits hardness reduces, and slows down the raising of soluble solid, mitigates rotting for fruit.Throughout in reason, chlorine dioxide is protected
The fresh-keeping effect of fresh laminates 3,8 is best.
Embodiment 13
Application of the fresh-keeping laminates of chlorine dioxide in onion is fresh-keeping.
Test process:
By the fresh-keeping laminates of above-mentioned preparation, the use of 35*20cm size is cut into.
After onion harvesting, after being classified, selected, being dried, it is packed into mesh bag, per packed 20kg.It is put in every bag in pack
Enter 2 fresh-keeping laminates of chlorine dioxide, laminates are placed close to woven bag, are placed in 0 ~ 1.5 DEG C of freezer and stored, storage period
Between be not used other antistaling agents processing.It is handled respectively using the fresh-keeping laminates 6,7,8 of chlorine dioxide, not do the ocean of any processing
Green onion is control, and every kind of the above processing tests 10 bags.The statistical results after refrigeration in 100 days.
Testing index:
Mildew rate: the onion quality of rotten or long mildew accounts for the ratio of gross mass, and every kind of processing counts 3 bags, is averaged.
Test result:
Onion refrigerated by 100 days, and control onion mildew rate is 16.4%, handled by the fresh-keeping laminates 6,7,8 of chlorine dioxide
Onion, mildew rate are below 3.5%.Test result shows that the fresh-keeping laminates processing of chlorine dioxide can inhibit onion cold storage procedure
Middle mildew rots, and fresh-keeping to onion have good result.
Claims (10)
1. a kind of fresh-keeping laminates of chlorine dioxide include at least first base material, the second substrate, adhesive and chlorine dioxide release
The mixture of agent, described adhesive and chlorine dioxide releasing agent is uniformly distributed between first base material and the second substrate and heated
Fine and close chlorine dioxide layer, first base material and the second substrate is pressed to form closely to paste under adhesive effect with chlorine dioxide layer
It closes；The first base material is gas permeable material；The content of chlorine dioxide is flat for 0.5 ~ 50g/ in the fresh-keeping laminates of chlorine dioxide
Square rice.
2. the fresh-keeping laminates of chlorine dioxide according to claim 1, which is characterized in that the first base material is selected from nonwoven
Cloth, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp paper, straw paper, perforated film, punching leaching membrane paper；The first base material
Preferred quality is 10 ~ 80g/ square metres.
3. the fresh-keeping laminates of chlorine dioxide according to claim 1, which is characterized in that second substrate is selected from poly- second
Alkene film, polypropylene film, polyvinyl chloride film, paper-plastic composite film, non-woven fabrics, polyethylene breathable film, is breathed freely at polyester film
Paper, blotting paper, wood pulp paper, straw paper, perforated film, punching leaching membrane paper；The preferred quality of second substrate is flat for 10 ~ 60g/
Square rice.
4. the fresh-keeping laminates of chlorine dioxide according to claim 1, which is characterized in that the chlorine dioxide is fresh-keeping laminated
The grammes per square metre of object unit area is 40 ~ 300g/ square metres.
5. the fresh-keeping laminates of chlorine dioxide according to claim 1, which is characterized in that the chlorine dioxide releasing agent packet
Include primary dose, acid-releasing agent and stabilizer；The primary dose of mixture selected from sodium chlorite, potassium chlorite or both, acid-releasing agent are selected from
Solid acid or quaternary ammonium salt, stabilizer are selected from magnesium stearate, stearic acid, polyethylene wax, magnesium silicate, silica；The titanium dioxide
Mass ratio shared by primary dose is 10 ~ 60% in chlorine releasing agent, and mass ratio shared by acid-releasing agent is 10 ~ 70%, mass ratio shared by stabilizer
It is 20 ~ 85%.
6. the fresh-keeping laminates of chlorine dioxide according to claim 1, which is characterized in that chlorine dioxide releasing agent can pass through 50
Mesh, described adhesive can pass through 50 meshes.
7. the fresh-keeping laminates of chlorine dioxide according to claim 1, which is characterized in that described adhesive is solid, powdery heat
The mass ratio of melten gel, described adhesive and chlorine dioxide releasing agent is 1:5 ~ 5:1.
8. the fresh-keeping laminates of chlorine dioxide described according to claim 1 ~ 7, which is characterized in that on the upper layer of second substrate
There can also be third substrate, adhesive and chlorine dioxide releasing agent are uniformly distributed between the second substrate and third substrate, the second base
The close adhesion under adhesive effect, chlorine dioxide releasing agent pass through heating pressurization by heating pressurization for material layer and third substrate layer
It is fitted closely with adhesive；Third substrate is selected from polyethylene film, polyester film, polypropylene film, polyvinyl chloride film, paper
Composite membrane, non-woven fabrics, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp paper, straw paper, perforated film, punching leaching membrane paper；Institute
The quality for stating third substrate is 10 ~ 60g/ square metres.
9. the preparation method of the fresh-keeping laminates of described in any item chlorine dioxide according to claim 1 ~ 8, comprising the following steps:
A, the first base material described in preparation and the second substrate；
B, the adhesive described in preparation makes adhesive cross 50 meshes by crushing or being sieved；
C, the raw material of the chlorine dioxide releasing agent described in preparation, each raw material independently by crushing or being sieved, met 50 meshes
It is required that；
D, adhesive and each ingredient of chlorine dioxide releasing agent are proportionally uniformly mixed, form mixture；
E, the mixture that will be prepared in step D is spread in uniform on first base material or the second substrate, then covers another base
Material obtains the fresh-keeping laminates of chlorine dioxide under heating, pressurization.
10. application of the fresh-keeping laminates of described in any item chlorine dioxide in preserving fruit and vegetable utilizing according to claim 1 ~ 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910643494.8A CN110447709A (en) | 2019-07-17 | 2019-07-17 | A kind of fresh-keeping laminates of chlorine dioxide, preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910643494.8A CN110447709A (en) | 2019-07-17 | 2019-07-17 | A kind of fresh-keeping laminates of chlorine dioxide, preparation method and application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670911A (en) * | 2020-06-15 | 2020-09-18 | 深圳市源辉生物科技有限公司 | Preparation process of chlorine dioxide slow-release powder |
| CN114684790A (en) * | 2022-03-30 | 2022-07-01 | 中源(大连)生物环保科技有限公司 | Controllable dry method and device for preparing pure chlorine dioxide gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107549298A (en) * | 2017-10-20 | 2018-01-09 | 国家农产品保鲜工程技术研究中心（天津） | A kind of solid-state chloride dioxide sustained release agent and its application |
| CN108338212A (en) * | 2018-02-05 | 2018-07-31 | 乌鲁木齐市格瑞德保鲜科技有限公司 | A kind of fresh-keeping laminates and the preparation method and application thereof |
-
2019
- 2019-07-17 CN CN201910643494.8A patent/CN110447709A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107549298A (en) * | 2017-10-20 | 2018-01-09 | 国家农产品保鲜工程技术研究中心（天津） | A kind of solid-state chloride dioxide sustained release agent and its application |
| CN108338212A (en) * | 2018-02-05 | 2018-07-31 | 乌鲁木齐市格瑞德保鲜科技有限公司 | A kind of fresh-keeping laminates and the preparation method and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670911A (en) * | 2020-06-15 | 2020-09-18 | 深圳市源辉生物科技有限公司 | Preparation process of chlorine dioxide slow-release powder |
| CN114684790A (en) * | 2022-03-30 | 2022-07-01 | 中源(大连)生物环保科技有限公司 | Controllable dry method and device for preparing pure chlorine dioxide gas |
| CN114684790B (en) * | 2022-03-30 | 2023-08-29 | 中源(大连)生物环保科技有限公司 | Method and device for preparing pure chlorine dioxide gas in controllable dry mode |
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Application publication date: 20191115 |