CN107217544A - A kind of fresh-keeping composite module of superthick damping, manufacture method and application - Google Patents
A kind of fresh-keeping composite module of superthick damping, manufacture method and application Download PDFInfo
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- CN107217544A CN107217544A CN201610165007.8A CN201610165007A CN107217544A CN 107217544 A CN107217544 A CN 107217544A CN 201610165007 A CN201610165007 A CN 201610165007A CN 107217544 A CN107217544 A CN 107217544A
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- damping
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- 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
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- 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
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
- B32B43/003—Cutting
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/22—Agents rendering paper porous, absorbent or bulky
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Paper (AREA)
- Packages (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of fresh-keeping composite module of superthick damping, manufacture method and application, the sandwich layer of the fresh-keeping composite module of superthick damping is the fresh-keeping paper base material of 0.5-2.0mm superthick damping, antibacterial and mouldproof non-woven fabrics is thermally bonded using ultrasonic wave point-like in the tow sides of the paper base material the fresh-keeping composite module of superthick damping is made, wherein, the bleached wood pulp of low beating degree during the fresh-keeping paper base material of superthick damping is used, high hygroscopicity fibre is matched somebody with somebody with low melting point chemical fibre to be copied, addition PAE in slurry, antibacterial mildew inhibitor, body paper is made in moisture absorption leavening agent, body paper impregnates the mixed solution of hydrophilic water-retaining property high molecular polymer and antibacterial mildew inhibitor, manufactured paper with pulp and formed using wet method copy paper equipment, the fresh-keeping composite module of superthick damping is cut into suitably sized, it is assemblied on garden stuff crisper, humidity higher in box can be maintained and condensation amount very little.
Description
Technical field
It is cold more particularly, to a kind of refrigerator the present invention relates to postharvest technology of fruits and vegetables field and speciality paper technical field
Hide the production technical field of fruits and vegetables damping fresh-keeping function module in room or fruit and vegetable box.
Background technology
Fresh fruit and vegetables are water content very high fresh and alive food, still can proceed breathing after harvesting
With the vital movement such as transpiration.Fruits and vegetables are during storage, the consumption of its moisture and nutriment and exhaling for fruits and vegetables
Inhale action intensity to be directly proportional, dehydration is equivalent to lose fresh and weightlessness, so reducing moisture loss and suppressing to breathe
Effect is the important step of fruit vegetables storing.
For the freshness date of fruit-vegetable food in extension refrigerator, it is included in fruit on reducing the prior art of moisture loss
Function film is set on vegetable box, such as " temperature-sensitive moisture permeable membrane ", " silicon filter membrane ", " the drenched wet film of sense ", with
And " the damping preservative film " of Application No. " 201510094346.7 ".Typically " temperature-sensitive moisture permeable membrane " is with nylon
Or polyester, as base material, its moisture-inhibiting ability can be responded to temperature, but humidity change is not reacted,
Therefore, when relative humidity is more than 90%, temperature-sensitive moisture permeable membrane itself can produce condensation, especially when it is set
When on the fruit and vegetable box of refrigerator, it is placed under low temperature environment, is also easy to produce condensation.Siemens silicon filter membranes
Although with performance of keeping humidity, its penetrability can not change with temperature and humidity, and humidity is high in fruit and vegetable box
Up to 100%, condensation is serious." the drenched wet film of sense " is that viscose solution is applied in paper-based substrate, passes through sulfuric acid
Acid out regenerates and the drenched wet film of sense is made in a series of follow-up decontamination process, although the sense that this method is made
Drenched wet film has with the increased characteristic of increase moisture-inhibiting ability of humidity, but prepares sense in this way
There is following problem in drenched wet film：One is that complex manufacturing, equipment investment are big.This technique is needed first
Viscose liquid is prepared, i.e., dissolving pulp (native cellulose) is alkalized into alkali cellulose, then make with carbon disulfide
With generation cellulose xanthate ester, the viscous solution obtained in sig water is dissolved in.Viscose liquid is coated in
Also need to regenerate by acid out after on paper substrate, wash, desulfurization, the complex techniques process such as washing.Two be production
Process is high to water quality and equipment requirement, and whole process is both needed to use deionized water, and water consumption is very big, and equipment is needed
There is the corrosion of acid and alkali resistance, carbon disulfide etc..Three be that environmental protection facility investment is big, and pollution risk is high.Again
There is the high pollution risks such as atmosphere pollution, water pollution, residual chlorine in the regenerative process of raw cellulose.It is glutinous due to preparing
Carbon disulfide is used during glue, a part of carbon disulfide can exist with free state, xanthate regeneration
During side reaction can generate hydrogen sulfide, these noxious materials are to production on-site environment and prevention and control of air pollution
Propose acid test；The scrub raffinate after substantial amounts of acid out can be also produced in process of production, after alkali desulfurization
Scrub raffinate and bleaching after scrub raffinate, there is a series of process problem to scrub raffinates；In bleaching
, if subsequently washing is not thorough, there is chloride ion content exceeded in the bleaching liquor used in process generally sodium hypochlorite
The problem of, this is a big taboo of food paper.Application No. " 201510094346.7 " " damping is fresh-keeping
Film ", although the relative humidity in fruit and vegetable box can be maintained up to more than 90%, is due to that it is quantitative only about
50g/m2, can water-absorbing-retaining material it is less, coating high molecular polymer after it is dense, 3 in fruit and vegetable box
It condensation amount still reaches to 2.0g or so.
The content of the invention
In order to overcome the defect of above-mentioned prior art, it is an object of the invention to provide a kind of superthick damping guarantor
Fresh composite module, manufacture method and application.
The present invention is adopted the following technical scheme that：Using the fresh-keeping paper base material of superthick damping and antibacterial and mouldproof nonwoven
Cloth is thermally bonded by ultrasonic wave point-like and is combined and damping fresh-keeping function module is made, and wherein superthick damping is fresh-keeping
The good fibrous material of loose porous moisture-absorbing moisture-keeping performance and high molecular polymer can absorb unnecessary in paper base material
Steam, water moisture self restraint and automatically adjust humidity, reach the purpose that high moisturizing is fresh-keeping, condensation is few；Superthick
The fresh-keeping paper base material of damping has easily clear with the non-woven fabric compounded damping fresh-keeping function module being made of antibacterial and mouldproof
Wash, the functions such as service life, antibacterial and mouldproof, appearance looks elegant can be postponed.
The fresh-keeping paper base material of superthick damping uses the masson pine of 20-25 ° of SR beating degree, bleaching
At least one of sulphite wood pulp vegetable-fibre slurry, the cotton pulp, viscose glue with 20-30 ° of SR beating degree is fine
Dimension, at least one of tencel fiber high hygroscopicity fibre, and a small amount of SWP fibers, polypropylene fiber, wash
At least one of synthetic fibre fiber low melting point chemical fibre is with copying, and fibre furnish is：25-70% plant fiber pulps
Material: 20-70% high hygroscopicity fibres: 5-10% chemical fibres.It is by the relative dry paper fiber of addition
1.0%PAE, relative dry paper fiber are 0.5-1.0% antibacterial mildew inhibitors, are 5% moisture absorption with respect to dry paper fiber
The auxiliary agents such as leavening agent, the thick fresh-keeping paper base materials of damping of 0.5-2.0mm are manufactured paper with pulp into using wet method copy paper equipment.
The manufacture method of the fresh-keeping composite module of superthick damping is：First, produce super using wet method copy paper equipment
The fresh-keeping paper base material of thicker damping, wet method copy paper equipment be oblique net paper machine, long mesh paper making machine, many cylinder mould machines,
One kind in presse-pate, wherein presse-pate technology are that the first multilayer of l Water Paper page is crimped onto on a vat, treat wet
Page reaches certain thickness, then using giant cut-out l Water Paper page, becomes the l Water Paper page of sheet, then leads to
Cross large-scale flat-plate compressed crusher and squeeze unnecessary moisture, be dried by air drier and obtain superthick tune
Wet fresh-keeping paper base material.Secondly, then on paper substrate two sides by ultrasonic wave point-like it is combined the polypropylene fibre of antibacterial and mouldproof
Or terylene non-woven fabric, be manufactured into higher caliper, can clean, with humectant energy, can automatically adjust
The fresh-keeping composite module of humidity；The composite module is cut into suitably sized, is assemblied on garden stuff crisper,
Humidity higher in box can be maintained and condensation amount very little.
The hydrophilic paper base material of superthick has more microcellular structures than slim paper base material, can conserve
More steam, if humidity declines in box, can discharge the high humility in part steam, keeping box；Work as box
When interior humidity is very high, unnecessary steam can be absorbed, condensation is prevented, plays the purpose for automatically adjusting humidity.
The water absorbing properties of cotton pulp, viscose rayon or tencel fiber are higher than common bleached wood pulp fiber, by adding
Increase the fiber of water imbibition, the unnecessary steam in crisper can be adsorbed, performance of keeping humidity is preferable.Cotton pulp
Water absorbing properties are better than chemical wood pulp, by appropriate mashing, can assign the preferable intensity of paper and paper-forming evenness；
The water absorbing properties ratio cotton pulp of viscose rayon and tencel fiber is more excellent, and the appropriate amount by adding can assign paper
Preferable water-absorbing-retaining performance；The appropriate moisture absorption leavening agent of addition can promote the absorption of steam, and can play fluffy
Loose paper, the purpose for increasing deflection.
The two sides of the superthick paper base material needs compound upper non-woven fabrics, due to conventional string and viscose glue
Fiber or tencel fiber can not be heated, it is impossible to by polypropylene fibre or PET production can not be in cloth heat bonding, therefore need
The appropriate chemical fibre that can be heated at 150-220 DEG C is added in body paper, makes thicker paper base material
Point-like heat bonding is firm under the TRANSIENT HIGH TEMPERATURE of ultrasonic wave with non-woven fabrics.
Because the thickness of the fresh-keeping paper base material of superthick damping is up to 0.5-2.0mm, need long-term in moist environment
In use, required wet strength is higher, according to the dry method of paper-making, it is necessary to spray many gluings between in the fibre
Agent, and make to be firmly combined between fiber using squeezing, but the air permeability of dry method paper is still excessive, and influence is protected
Wet effect, and the paper substrate dry and wet intensity produced using wet papermaking technology is higher, air permeability is suitable.Due to
There are longer cotton pulp, low melting point chemical fibre, and viscose rayon or tencel fiber in slurry, be relatively adapted to
Manufactured paper with pulp using oblique net paper machine and wet lapped machine equipment, by the long mesh paper making machine that many cylinder mould machines and speed are slower,
Some thicker paper base materials can also be produced.
Because the beating degree of slurry is less high, compare bulky into paper, in order to adjust the air permeability of paper substrate, make paper
Base has higher performance of keeping humidity, it is necessary to which appropriate carry out the hydrophilic preferable high molecular polymer of water retention property of dipping
To adjust the air permeability of paper substrate, that the present invention is selected is at least one in carboxymethyl cellulose, glycerine, gelatin
Kind.
Advantages of the present invention is：The fresh-keeping composite module of superthick damping, not only with the fresh-keeping effect of preferable damping
Really, the medial humidity in fruit and vegetable box can be maintained between 90%-95%, and the condensation amount in fruit and vegetable box is from original
2.0g come or so drops to below 0.5g, greatly reduces condensation, reduces fruits and vegetables because condensing and rotten wind
Danger, and fruit and vegetable box more clean hygiene.In addition, producing the process of the fresh-keeping paper base material of thicker type damping
In do not produce poisonous and hazardous waste water and gas, also in the absence of Chloride residue risk.Manufactured according to the present invention
The fresh-keeping composite module of superthick damping, for the fruit and vegetable box with fresh-keeping function and the ice with fruit and vegetable preservation box
In case, it can be changed according to humidity and automatically adjust its moisture-inhibiting ability, when humidity is more than 95% in fruit and vegetable box,
The hydrophilic fibers and more micropore of the fresh-keeping composite module of the damping, the energy with higher moisture absorption water moisture self restraint
Power, when the water content of paper base material exceedes a certain amount of, due to the concentration gradient of water vapour, unnecessary steam
It can be discharged into crisper external environment, effectively prevent fruit and vegetable box from condensing, the rotten danger of reduction fruits and vegetables；Work as ice
When relative humidity is less than 90% in case fruit and vegetable box, the steam absorbed in the fresh-keeping composite module of damping can be given out
Come, to maintain humidity in fruit and vegetable box to be more than 90%.
Embodiment
A kind of fresh-keeping composite module of superthick damping of the present invention, including the fresh-keeping paper substrate of superthick damping and paper
Antibacterial and mouldproof non-woven fabrics on the tow sides of basic unit are compound.
The raw material that paper substrate is used has the conventional bleached sulphate softwood pulp of papermaking, bleached sulphate leaf wood
The hemicellulose level of polysaccharide in slurry, GREAT LACK, this several slurry is few, can subtract
The mildew phenomenon that few damping preservative film is used for a long time in a humid environment, and sufficient raw, into paper
Strength character and evenness are preferable；For water absorbing properties, the water absorbing properties of bleached hardwood pulp are slightly better than bleaching
The water absorbing properties of softwood pulp；For paper strength, it is wealthy that the tensile strength of bleaching needle-point leaf pulp is better than bleaching
The tensile strength of leaf wood pulp.Also needed in paper substrate addition water-absorbing-retaining performance more preferable cotton pulp, viscose rayon or
Tencel fiber；Also need to add the chemical fibre such as polyolefin SWP fibers for being easy to ultrasonic heat bonding or polypropylene fibre fibre
Dimension or polyester fiber.Because paper base material thickness is up to 0.5-2.0mm, pulp fiber it is long, it is necessary to using
Oblique net paper machine or presse-pate or many cylinder mould machines or long mesh paper making machine are manufactured paper with pulp.Paper base material is quantified
160-1000g/m2, thickness 0.5-2.0mm, longitudinal wet tension stress >=15N, Ge Erlai air permeabilities 5-20s.
Because the fresh-keeping composite module of the damping needs to be used for a long time in a humid environment, therefore paper base material and nothing
Spinning cloth needs have higher wet strength, 0 grade of mould proof grade.
Embodiment one：Paper substrate：22% bleached sulphate softwood pulp: 70% cotton pulp: 8%SWP fibers, needle
20 ° of SR of wood pulp beating degree, Cotton Pulp degree 25 ° of SR, SWP fiber 3-4mm length, PAE 1.0%, oxidation
Aluminium 5%, copper 8-hydroxyquinolinate 0.5%；Dipping solution：The copper 8-hydroxyquinolinate of 3% carboxymethyl cellulose+0.5%；Copy paper equipment：Fourdrinier wire
Paper machine, paper substrate thickness 0.5mm.Nonwoven layer：Antibacterial and mouldproof nonwoven polypropylene fabric.The detection of composite module
It the results are shown in Table 1.
Embodiment two：Paper substrate：52% bleached sulphate softwood pulp: 40% cotton pulp: 8% polypropylene fiber, needle
20 ° of SR of wood pulp beating degree, 25 ° of SR of Cotton Pulp degree, polypropylene fiber 4-5mm length, PAE 1.0%, oxidation
Aluminium 5%, copper 8-hydroxyquinolinate 0.5%；Dipping solution：The copper 8-hydroxyquinolinate of 3% gelatin+0.8%；Copy paper equipment：Double cylinder paper
Machine, paper substrate thickness 0.8mm.Nonwoven layer：Antibacterial and mouldproof nonwoven polypropylene fabric.The detection knot of composite module
Fruit is shown in Table 1.
Embodiment three：Paper substrate：70% bleached sulphate softwood pulp: 20% tencel fiber: 8%SWP fibers,
20 ° of SR of softwood pulp beating degree, tencel fiber 4-5mm length, SWP fiber 3-4mm length, PAE 1.0%,
Zinc oxide 5%, copper 8-hydroxyquinolinate 0.5%；Dipping solution：The copper 8-hydroxyquinolinate of 2% carboxymethyl cellulose+0.5%；Copy paper equipment：
Oblique net paper machine, paper substrate thickness 0.8mm.Nonwoven layer：Antibacterial and mouldproof nonwoven polypropylene fabric.Composite module
Testing result is shown in Table 1.
Example IV：Paper substrate：70% GREAT LACK: 20% viscose rayon: 10% polypropylene fibre is fine
Dimension, 25 ° of SR of GREAT LACK beating degree, viscose rayon 4-5mm length, polypropylene fiber 4-5mm
It is long, PAE 1.0%, zinc oxide 5%, thiabendazole 0.5%；Dipping solution：The thiophene benzene miaow of 3% gelatin+0.8%
Azoles；Copy paper equipment：Oblique net paper machine, paper substrate thickness 1.0mm.Nonwoven layer：Antibacterial and mouldproof polypropylene fibre nonwoven
Cloth.The testing result of composite module is shown in Table 1.
Embodiment five：Paper substrate：45% GREAT LACK: 45% cotton pulp: 10%SWP fibers,
25 ° of SR of softwood pulp beating degree, Cotton Pulp degree 25 ° of SR, SWP fiber 3-4mm length, PAE 1.0%,
Aluminum oxide 5%, copper 8-hydroxyquinolinate 0.5%；Dipping solution：The copper 8-hydroxyquinolinate of 2% carboxymethyl cellulose+0.5%；Copy paper equipment：
Oblique net paper machine, paper substrate thickness 1.0mm.Nonwoven layer：Antibacterial and mouldproof nonwoven polypropylene fabric.Composite module
Testing result is shown in Table 1.
Embodiment six：Paper substrate：20% bleached sulphate softwood pulp: 20% BRATSK: 55%
Cotton pulp: 10% polyester fiber, 20 ° of SR of softwood pulp beating degree, 25 ° of SR of hardwood pulp beating degree, Cotton Pulp
Spend 25 ° of SR, polyester fiber 4-5mm length, PAE 1.0%, aluminum oxide 5%, thiabendazole 0.5%；Leaching
Stain solution：The thiabendazole of 2% glycerine+0.5%；Copy paper equipment：Oblique net paper machine, paper substrate thickness 1.2mm.
Nonwoven layer：Antibacterial and mouldproof terylene non-woven fabric.The testing result of composite module is shown in Table 1.
Embodiment seven：Paper substrate：20% bleached sulphate softwood pulp: 70% cotton pulp: 10%SWP fibers, pin
20 ° of SR of leaf wood pulp beating degree, Cotton Pulp degree 25 ° of SR, SWP fiber 3-4mm length, PAE 1.0%, oxygen
Change zinc 5%, copper 8-hydroxyquinolinate 1.0%；Copy paper equipment：Presse-pate, paper substrate thickness 1.5mm.Nonwoven layer：
Antibacterial and mouldproof nonwoven polypropylene fabric.The testing result of composite module is shown in Table 1.
Embodiment eight：Paper substrate：30% GREAT LACK: 60% cotton pulp: 10% polypropylene fiber,
25 ° of SR of softwood pulp beating degree, 25 ° of SR of Cotton Pulp degree, polypropylene fiber 4-5mm length, PAE 1.0%,
Aluminum oxide 5%, thiabendazole 1.0%；Copy paper equipment：Presse-pate, paper substrate thickness 2.0mm.Non-woven fabrics
Layer：Antibacterial and mouldproof nonwoven polypropylene fabric.The testing result of composite module is shown in Table 1.
The method of testing of the percentage of water loss of relative humidity, condensation amount and humidity load in crisper：It is super by what is be made
The fresh-keeping composite module of thicker damping is arranged on 12 liters of the refrigerator fruit and vegetable box top cover with sealing property, fruits and vegetables
The cellulose sponge simulation humidity load of uniform adsorption 300g distilled water is placed in box, it is appropriate in fruit and vegetable box
Place humiture instrument in position.The fruit and vegetable box that will be loaded with the fresh-keeping composite module of damping is placed on the refrigerating chamber of wind cooling refrigerator
It is middle to be tested, the average relative humidity in testing 72 hours in fruit and vegetable box；After measuring up to 72 hours, survey
The condensation amount of four walls in fruit and vegetable box is measured, and weighs the percentage of water loss of humidity load.
The comparison of table 1, the testing result of embodiment and desired value
From table 1, the Main physical performance of the fresh-keeping paper substrate of superthick damping made by above-mentioned each embodiment refers to
Mark all meets desired value requirement, with the fresh-keeping paper substrate of superthick damping and non-woven fabric compounded composite module
Fresh keeping property also all meet desired value requirement, in the case where maintaining higher medial humidity, humidity load is lost
Water rate is small, and condensation amount is considerably less, and illustrating can be effective using the fresh-keeping module of superthick damping that the present invention is developed
The condensation amount of fruit and vegetable box is reduced, the fresh-keeping purpose of high moisturizing is reached.
Claims (10)
1. a kind of fresh-keeping composite module of superthick damping, it is characterized in that：The core of the fresh-keeping composite module of superthick damping
Layer is the fresh-keeping paper base material of 0.5-2.0mm superthick damping, and ultrasound is used in the tow sides of the paper base material
The fresh-keeping composite module of superthick damping is made in the upper antibacterial and mouldproof non-woven fabrics of wave point shape heat bonding, wherein, it is described super
Bleached wood pulp, high hygroscopicity fibre and the eutectic of low beating degree during the fresh-keeping paper base material of thicker damping includes
Point chemical fibre, the bleached wood pulp, high hygroscopicity fibre, the proportioning of low melting point chemical fibre are：
25-70% bleached wood pulps: 20-70% high hygroscopicity fibres: 5-10% low melting point chemical fibres.
2. the fresh-keeping composite module of superthick damping as claimed in claim 1, it is characterized in that：The bleached chemical wood
Starch as at least one of masson pine, bleached sulfite wood pulp, beating degree is 20-25 ° of SR,
High hygroscopicity fibre is at least one of cotton pulp, viscose rayon, tencel fiber, and low melting point chemical fibre is
At least one of polyolefin SWP fibers, polypropylene fiber, polyester fiber.
3. the fresh-keeping composite module of superthick damping as claimed in claim 1 or 2, it is characterized in that：The superthick
The fresh-keeping paper base material of damping, in addition to 1.0%PAE, 0.5-1.0% antibacterial mildew inhibitor, 5% moisture absorption leavening agent.
4. the fresh-keeping composite module of superthick damping as claimed in claim 3, it is characterized in that：Antibacterial mildew inhibitor is quinoline
At least one of quinoline copper, thiabendazole, moisture absorption leavening agent are zinc oxide or aluminum oxide.
5. the fresh-keeping composite module of superthick damping as claimed in claim 1, it is characterized in that：Antibacterial and mouldproof non-woven fabrics
For nonwoven polypropylene fabric or terylene non-woven fabric, air permeability 1000-2000L/m2.s, mould proof 0 grade of grade.
6. a kind of method for manufacturing the fresh-keeping composite module of superthick damping as described in any in claim 1 to 5,
It is characterized in that：By by 25-70% bleached wood pulps, 20-70% high hygroscopicity fibres and the 5-10% of raw material part
Low melting point chemical fibre is beaten, with copying, wherein in paper-making process in slurry addition 1.0%PAE,
Body paper is made in 0.5-1.0% antibacterial mildew inhibitors, 5% moisture absorption leavening agent, and body paper impregnates hydrophilic water-retaining property polyphosphazene polymer
The mixed solution of compound and antibacterial mildew inhibitor, the fresh-keeping paper substrate of superthick damping is manufactured paper with pulp into using wet method copy paper equipment
Material.
7. the manufacture method of the fresh-keeping composite module of superthick damping as claimed in claim 6, it is characterized in that：It is hydrophilic
Water-retaining property high molecular polymer is at least one of carboxymethyl cellulose, glycerine, gelatin.
8. the manufacture method of the fresh-keeping composite module of superthick damping as claimed in claim 6, it is characterized in that：Wet method
Copy paper equipment is one in the oblique net paper machine with online surface sizing equipment, long mesh paper making machine, many cylinder mould machines
Kind, or wet method copy paper equipment is presse-pate.
9. the manufacture method of the fresh-keeping composite module of superthick damping as claimed in claim 8, it is characterized in that：Wet lapped
The copy paper method of machine is that the first multilayer of l Water Paper page is crimped onto on a vat, then cuts off l Water Paper using giant
Page, becomes the l Water Paper page of sheet, then squeezes unnecessary moisture by large flat squeezer, passes through hot blast
Drying machine, which is dried, obtains the fresh-keeping paper base material of superthick damping.
10. the application of the fresh-keeping composite module of superthick damping as described in claim 1 to 5, it is characterized in that：Will
The fresh-keeping composite module of superthick damping is assemblied on fruit and vegetable box, maintains 3 balances in fruit and vegetable box relatively wet
Degree >=90%, fruits and vegetables percentage of water loss≤5%, fruit and vegetable box condensation amount≤0.5 gram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610165007.8A CN107217544B (en) | 2016-03-21 | 2016-03-21 | Ultra-thick humidity-adjusting fresh-keeping composite module, manufacturing method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN110341242A (en) * | 2018-04-08 | 2019-10-18 | 中国制浆造纸研究院有限公司 | A kind of choke moisture-inhibiting preservation compound film, manufacturing method and application |
| CN111937957A (en) * | 2020-07-31 | 2020-11-17 | 中华全国供销合作总社济南果品研究院 | Apple cold-storage moisturizing transport preservative film and preparation method thereof |
| CN114908082A (en) * | 2022-05-31 | 2022-08-16 | 陕西科技大学 | Washing-free low-protein adsorption paper-based nucleic acid extraction material, and preparation method and application thereof |
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| CN114908082A (en) * | 2022-05-31 | 2022-08-16 | 陕西科技大学 | Washing-free low-protein adsorption paper-based nucleic acid extraction material, and preparation method and application thereof |
| CN114908082B (en) * | 2022-05-31 | 2023-08-18 | 陕西科技大学 | Elution-free low-protein adsorption paper-based nucleic acid extraction material, and preparation method and application thereof |
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