CN106245452B - A kind of food-level antibacterial wrapping paper preparation technology - Google Patents
A kind of food-level antibacterial wrapping paper preparation technology Download PDFInfo
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- CN106245452B CN106245452B CN201610600952.6A CN201610600952A CN106245452B CN 106245452 B CN106245452 B CN 106245452B CN 201610600952 A CN201610600952 A CN 201610600952A CN 106245452 B CN106245452 B CN 106245452B
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- food
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- polylactic
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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
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
-
- 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
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of food-level antibacterial wrapping paper preparation technology, using total chlorine free bleaching wood pulp as main fibrous raw material, the acid fiber by polylactic that adds after 10% 20% Modification of Amorphophallus Glucomannan and 0.1% 1.0% sodium alginate-modified rear chitin fibers are with copying；Then it is 0.1% 3% cation guar gums to add mass percent, and mass percent is 0.02% 0.6% polyethylene glycol oxides and mass percent is 0.01% 0.3% Ludox, and wet web is shaped in sheet forming apparatus；Then 2% 10% carboxymethyl chitosans are painted into using scraper on wet web surface and carry out surface enhanced；Oil pressure handles and obtains food-level antibacterial wrapping paper after drying.The present invention has the invasion of bacterium outside good surface property and excellent liquid-repellency energy, and energy barrier into paper, prevents microorganism from entering and provides sterile protection, every the key technical indexes reaches food-level antibacterial wrapping paper quality level.
Description
Technical field
The invention belongs to speciality paper field, and in particular to a kind of food-level antibacterial wrapping paper preparation technology.
Background technology
Food antibacterial wrapping paper is a kind of package paper with antibacterial functions, makes food in accumulating, storage from micro-
Biology is invaded and harassed, to improve shelf life and the shelf-life of food；Require that paper is smooth simultaneously, tensile strength is high, adapt to printing and
Food hygiene requirement, is the speciality paper with high added value.
Therefore exploitation antibiotic property is good, the food antimicrobial packaging paper that intensity is high, smoothness is good, can meet food packaging safety
Hygienic requirements, lifts the safe class of packaging for foodstuff, with higher economic benefit and social benefit.
Antiseptic, is mainly added in paper by production food anti-bacteria paper by certain technique at present, but is existed anti-
Microbial inoculum and fibrous binding force are poor, into the shortcoming that paper antibacterial effect is unstable, surface strength is relatively low, thus develop a kind of antibacterial
The food antibacterial wrapping paper that effect is good, intensity is high, smoothness is good is that very have realistic meaning.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of food bag with antibiotic property
Paper technique is filled, after to acid fiber by polylactic and chitin fiber processing, with total chlorine free bleaching commercial wood pulp with copying, is reduced into
Sheet hole footpath, using the property of chitin fiber, improves the resistance bacterium property of paper, and using three kinds of fiber interpenetrating networks into
Type, increases the compactness of paper, improves tightness, improves page characteristic；Using cation guar gum, polyethylene glycol oxide, Ludox/
Ternary microparticle retention and drainage system, improves into the uniform performance of paper；And carboxymethyl chitosan surface enhanced is used, antibacterial can be achieved
The unification of property, hydrophobic performance, bond properties and filming performance, solves that page water-resistance is poor, surface strength is poor, hair and powder dropping
The significant technology issues such as phenomenon, while the surface strength of paper, anti-microbial property, water resistance, tensile strength and resistance to can be greatly improved
Folding degree etc..
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of food-level antibacterial wrapping paper preparation technology, it is characterised in that comprise the following steps：
Step one：Acid fiber by polylactic modification
Acid fiber by polylactic is added water first and is configured to 10%-20% solution, 40 DEG C -80 DEG C are heated to, modulation pH is extremely
5.0-8.0, adds konjaku glucomannan stirring 30-90min of the mass percent for 10%-20%, is output in power output
Frequency is stirred to handle 5-10min in 30-100kHz ultrasonic wave in mixer with 10000-20000rpm speed
10-30min, is prepared into acid fiber by polylactic solution；
Step 2：Chitin fiber modification
Chitin fiber is added water and is configured to 30%-50% solution, and is heated to 30 DEG C -45 DEG C, modulation pH to 5.0-
9.0, the sodium alginate that mass percent is 0.1%-1.0% is added, in power output 200-400W, air pressure 10-40Pa bar
Under part, after air low temperature plasma treatment 60-300s, 10- is stirred with 15000-30000rpm speed in mixer
After 30min, add running water and modified chitin fiber is diluted to mass fraction for 5%-10%；
Step 3：Wood pulp processing
By total chlorine free bleaching wood pulp, at 30 DEG C -50 DEG C, 0.02%-0.05% hemicellulose ferment treatment 30- is added
90min, with 15000-30000n rotating speed defibrination 15-45min in PFI mills；
Step 4：Manufacture paper with pulp
By in the wood pulp of step 3, the mass percent added in step one is 5%-15% acid fiber by polylactic and step 2
In mass percent 5%-15% chitin fibers, after being well mixed, add mass percent for 0.1%-3% cations
Guar gum, mass percent is 0.02%-0.6% polyethylene glycol oxides, and mass percent is 0.01%-0.3% Ludox,
Wet web is shaped in sheet forming apparatus；
Step 5：After wet web in step 4 is taken off, control applying glue temperature is painted at 40-80 DEG C using scraper
2%-10% carboxymethyl chitosans carry out surface enhanced, with hydraulic press pressure be 3Mpa-6Mpa squeezing 3min-6min；Again will
Wet web after processing is put into sheet dryer, at 90 DEG C -120 DEG C, dries 5min-15min, obtains medical treatment resistance bacterium bag dress
Use paper.
In a preferred embodiment of the invention, the acid fiber by polylactic of the addition in step one and konjaku glucomannan
Mass ratio is 10:(1-2).
In a preferred embodiment of the invention, the sodium alginate par (Mn)/average weight (Mw) coefficient
It is 1.3-1.8 for monodispersity index.
In a preferred embodiment of the invention, the hemicellulase is xylanase, enzyme activity 3000-5000IU/
g.The acid fiber by polylactic：The mass ratio of chitin fiber is 1:1.
In a preferred embodiment of the invention, the cation guar gum substitution value DS is 0.03-0.09, is sticked
Spend for 4000-8000mPa.s.Cation guar gum：Polyethylene glycol oxide：The mass ratio of Ludox is 10:2:1.
In a preferred embodiment of the invention, the carboxymethyl chitosan substitution value DS is 0.6-0.8, and molecular weight is
35000-50000。
By above-mentioned technical proposal, the beneficial effects of the invention are as follows：
After present invention process, food-level antibacterial wrapping paper paper can be made, its tearability is more than 760mN, and aperture is small
In 22 μm, gas permeability is more than 5.2 μm/Pa.s, and (dry) longitudinal direction of tensile strength is more than 5.3KN/m, and (wet) longitudinal direction of tensile strength is more than
1.3KN/m, can meet the invasion of bacterium outside paper strength, and energy barrier, play a part of antibacterial, can be greatly enhanced paper
The shelf life of packaged food.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, further
Illustrate the present invention.
A kind of food-level antibacterial wrapping paper preparation technology, comprises the following steps：
Step one：Acid fiber by polylactic is added water first and is configured to 10%-20% solution, 40 DEG C -80 DEG C, modulation are heated to
PH to 5.0-8.0, adds konjaku glucomannan stirring 30-90min of the mass percent for 10%-20%, is in power output
Output frequency is stirred to handle 5-10min in 30-100kHz ultrasonic wave in mixer with 10000-20000rpm speed
10-30min is mixed, acid fiber by polylactic solution is prepared into；
Step 2：Chitin fiber is added water and is configured to 30%-50% solution, and is heated to 30 DEG C -45 DEG C, modulation pH
To 5.0-9.0, the sodium alginate that mass percent is 0.1%-1.0% is added, in power output 200-400W, air pressure 10-
Under conditions of 40Pa, after air low temperature plasma treatment 60-300s, with 15000-30000rpm speed in mixer
Stir after 10-30min, add running water and modified chitin fiber is diluted to mass fraction for 5%-10%；
Step 3：By total chlorine free bleaching wood pulp, at 30 DEG C -50 DEG C, at the hemicellulase for adding 0.02%-0.05%
30-90min is managed, with 15000-30000n rotating speed defibrination 15-45min in PFI mills；
Step 4：By in the wood pulp of step 3, the mass percent added in step one is 5%-15% acid fiber by polylactic
With the mass percent 5%-15% chitin fibers in step 2, after being well mixed, mass percent is added for 0.1%-
3% cation guar gum, mass percent is 0.02%-0.6% polyethylene glycol oxides, and mass percent is 0.01%-0.3%
Ludox, is shaped to wet web in sheet forming apparatus；
Step 5：After wet web in step 4 is taken off, control applying glue temperature is painted at 40-80 DEG C using scraper
2%-10% carboxymethyl chitosans carry out surface enhanced, with hydraulic press pressure be 3Mpa-6Mpa squeezing 3min-6min；Again will
Wet web after processing is put into sheet dryer, at 90 DEG C -120 DEG C, dries 5min-15min, obtains medical treatment resistance bacterium bag dress
Use paper.
Embodiment 1：
A kind of food-level antibacterial wrapping paper preparation technology, comprises the following steps：
Step one：Acid fiber by polylactic is added water first be configured to 10% solution, be heated to 45 DEG C, pH is to 5.5 for modulation, plus
Enter the konjaku glucomannan stirring 40min that mass percent is 10%, be the ultrasonic wave that output frequency is 60kHz in power output
Middle processing 6min, and 30min is stirred with 12000rpm speed in mixer, it is prepared into acid fiber by polylactic solution；
Step 2：Chitin fiber is added water be configured to 35% solution, and be heated to 35 DEG C, modulate pH to 7.0, add
Mass percent be 0.3% sodium alginate, under conditions of power output 250W, air pressure 20Pa, using air low temperature etc. from
After subprocessing 90s, stirred in mixer with 15000rpm speed after 30min, add running water by modified chitosan
Fiber dilution to mass fraction is 6%；
Step 3：By total chlorine free bleaching wood pulp, at 35 DEG C, 0.03% hemicellulose ferment treatment 40min is added,
With 18000n rotating speed defibrination 25min in PFI mills；
Step 4：By in the wood pulp of step 3, the mass percent added in step one is 8% acid fiber by polylactic and step
The chitin fiber of mass percent 8% in two, after being well mixed, adds mass percent for 0.5% cation guar gum,
Mass percent is 0.1% polyethylene glycol oxide, and mass percent is 0.05% Ludox, is shaped in sheet forming apparatus wet
Paper web；
Step 5：After wet web in step 4 is taken off, control applying glue temperature is painted into 4% carboxylic at 50 DEG C using scraper
Methyl chitosan carry out surface enhanced, with hydraulic press pressure be 3Mpa squeezing 6min；The wet web after processing is put into paper again
In page drier, at 95 DEG C, 8min is dried, medical treatment resistance bacterium package paper is obtained.
Embodiment 2：
A kind of food-level antibacterial wrapping paper preparation technology, comprises the following steps：
Step one：Acid fiber by polylactic is added water first be configured to 15% solution, be heated to 65 DEG C, pH is to 7.0 for modulation, plus
Enter the konjaku glucomannan stirring 70min that mass percent is 15%, be the ultrasonic wave that output frequency is 60kHz in power output
Middle processing 6min, and 15min is stirred with 16000rpm speed in mixer, it is prepared into acid fiber by polylactic solution；
Step 2：Chitin fiber is added water be configured to 40% solution, and be heated to 40 DEG C, modulate pH to 7.0, add
Mass percent be 0.6% sodium alginate, under conditions of power output 320W, air pressure 20Pa, using air low temperature etc. from
After subprocessing 220s, stirred in mixer with 20000rpm speed after 20min, add running water by modified chitosan
Fiber dilution to mass fraction is 8%；
Step 3：By total chlorine free bleaching wood pulp, at 45 DEG C, 0.04% hemicellulose ferment treatment 60min is added,
With 20000n rotating speed defibrination 25min in PFI mills；
Step 4：By in the wood pulp of step 3, the mass percent added in step one is 10% acid fiber by polylactic and step
The chitin fiber of mass percent 10% in rapid two, after being well mixed, adds mass percent for 1.2% cation Guar
Glue, mass percent is 0.24% polyethylene glycol oxide, and mass percent is 0.12% Ludox, is molded in sheet forming apparatus
For wet web；
Step 5：After wet web in step 4 is taken off, control applying glue temperature is painted into 8% carboxylic at 70 DEG C using scraper
Methyl chitosan carry out surface enhanced, with hydraulic press pressure be 5Mpa squeezing 5min；The wet web after processing is put into paper again
In page drier, at 105 DEG C, 5min is dried, medical treatment resistance bacterium package paper is obtained.
Embodiment 3：
A kind of food-level antibacterial wrapping paper preparation technology, comprises the following steps：
Step one：Acid fiber by polylactic is added water first be configured to 20% solution, be heated to 80 DEG C, pH is to 8.0 for modulation, plus
Enter the konjaku glucomannan stirring 80min that mass percent is 20%, be the ultrasonic wave that output frequency is 80kHz in power output
Middle processing 10min, and 12min is stirred with 20000rpm speed in mixer, it is prepared into acid fiber by polylactic solution；
Step 2：Chitin fiber is added water be configured to 50% solution, and be heated to 45 DEG C, modulate pH to 8.5, add
Mass percent be 1.0% sodium alginate, under conditions of power output 400W, air pressure 40Pa, using air low temperature etc. from
After subprocessing 260s, stirred in mixer with 30000rpm speed after 12min, add running water by modified chitosan
Fiber dilution to mass fraction is 10%；
Step 3：By total chlorine free bleaching wood pulp, at 50 DEG C, 0.05% hemicellulose ferment treatment 80min is added,
With 30000n rotating speed defibrination 40min in PFI mills；
Step 4：By in the wood pulp of step 3, the mass percent added in step one is 15% acid fiber by polylactic and step
The chitin fiber of mass percent 15% in rapid two, after being well mixed, adds mass percent for 1% cation Guar
Glue, mass percent is 0.2% polyethylene glycol oxide, and mass percent is 0.1% Ludox, is shaped in sheet forming apparatus
Wet web；
Step 5：After wet web in step 4 is taken off, control applying glue temperature is painted into 10% carboxylic at 80 DEG C using scraper
Methyl chitosan carries out surface enhanced, in pressure is 6Mpa squeezings -6min with hydraulic press；The wet web after processing is put into paper again
In page drier, at 110 DEG C, 6min is dried, medical treatment resistance bacterium package paper is obtained.
Claims (5)
1. a kind of food-level antibacterial wrapping paper preparation technology, it is characterised in that comprise the following steps：
Step one：Acid fiber by polylactic modification
Acid fiber by polylactic is added water first and is configured to 10%-20% solution, 40 DEG C -80 DEG C are heated to, pH to 5.0- is modulated
8.0, konjaku glucomannan stirring 30-90min of the mass percent for 10%-20% is added, is output frequency in power output
To handle 5-10min in 30-100kHz ultrasonic wave, and 10- is stirred with 10000-20000rpm speed in mixer
30min, is prepared into acid fiber by polylactic solution；
Step 2：Chitin fiber modification
Chitin fiber is added water and is configured to 30%-50% solution, and is heated to 30 DEG C -45 DEG C, pH is to 5.0-9.0 for modulation,
The sodium alginate that mass percent is 0.1%-1.0% is added, under conditions of power output 200-400W, air pressure 10-40Pa,
After air low temperature plasma treatment 60-300s, 10-30min is stirred with 15000-30000rpm speed in mixer
Afterwards, add running water and modified chitin fiber is diluted to mass fraction for 5%-10%；
Step 3：Wood pulp processing
By total chlorine free bleaching wood pulp, at 30 DEG C -50 DEG C, 0.02%-0.05% hemicellulose ferment treatment 30-90min is added,
With 15000-30000n rotating speed defibrination 15-45min in PFI mills；
Step 4：Manufacture paper with pulp
In the wood pulp of step 3, will add the mass percent in step one is the acid fiber by polylactic after 5%-15% modifications
With the chitin fiber after the mass percent 5%-15% modifications in step 2, after being well mixed, quality hundred is added
Fraction is 0.1%-3% cation guar gums, and mass percent is 0.02%-0.6% polyethylene glycol oxides, and mass percent is
0.01%-0.3% Ludox, is shaped to wet web in sheet forming apparatus；
Step 5：After wet web in step 4 is taken off, control applying glue temperature is painted into 2%- at 40-80 DEG C using scraper
10% carboxymethyl chitosan carry out surface enhanced, with hydraulic press pressure be 3MPa-6MPa squeezing 3min-6min；Again will processing
Wet web afterwards is put into sheet dryer, at 90 DEG C -120 DEG C, dries 5min-15min, obtains food-level antibacterial packaging
Paper.
2. a kind of food-level antibacterial wrapping paper preparation technology according to claim 1, it is characterised in that：Adding in step one
The acid fiber by polylactic and the mass ratio of konjaku glucomannan entered is 10：(1-2).
3. a kind of food-level antibacterial wrapping paper preparation technology according to claim 1, it is characterised in that：The hemicellulose
Enzyme is xylanase, enzyme activity 3000-5000IU/g, the acid fiber by polylactic：The mass ratio of chitin fiber is 1:1.
4. a kind of food-level antibacterial wrapping paper preparation technology according to claim 1, it is characterised in that：The cation melon
Your glue substitution value DS is 0.03-0.09, and viscosity is 4000-8000mPas, cation guar gum：Polyethylene glycol oxide：Ludox
Mass ratio be 10:2:1.
5. a kind of food-level antibacterial wrapping paper preparation technology according to claim 1, it is characterised in that：The carboxymethyl shell
Glycan substitution value DS is 0.6-0.8, and molecular weight is 35000-50000.
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| CN106245452B true CN106245452B (en) | 2017-08-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106368030B (en) * | 2016-09-19 | 2018-12-14 | 昆明理工大学 | The method that hemp's woody-core total chlorine free bleaching slurry prepares food wrapper |
| CN109629295A (en) * | 2018-12-25 | 2019-04-16 | 浙江恒达新材料股份有限公司 | A kind of high-stiffness suction pipe facial tissue and preparation method thereof |
| CN109853299A (en) * | 2019-03-11 | 2019-06-07 | 南京林业大学 | Low basis weight food wrapper and its production method |
| CN110396868A (en) * | 2019-07-08 | 2019-11-01 | 陕西科技大学 | A kind of tealeaves fragrance wrapping paper and its preparation process |
| CN116180495B (en) * | 2023-02-22 | 2023-08-25 | 华邦古楼新材料有限公司 | Chitosan modified food packaging paper and preparation method thereof |
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| CN1431365A (en) * | 2003-02-21 | 2003-07-23 | 安县纸业有限公司 | Medical bactericidal paper and its production methods |
| CN101225120A (en) * | 2008-01-29 | 2008-07-23 | 武汉理工大学 | Method for micro-wave preparation of konjac glucomannan grafted polyesters |
| CN105256642A (en) * | 2015-10-17 | 2016-01-20 | 浙江理工大学 | Production method of medical packaging paper with high bacteria blocking performance |
| CN105568771A (en) * | 2015-12-24 | 2016-05-11 | 浙江华川实业集团有限公司 | Strong antibacterial ability medical packaging raw paper and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| PL2917408T3 (en) * | 2012-11-09 | 2020-07-13 | Mondi Ag | Online treated sealable and peelable medical paper for medical sterilization packaging |
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|---|---|---|---|---|
| CN1431365A (en) * | 2003-02-21 | 2003-07-23 | 安县纸业有限公司 | Medical bactericidal paper and its production methods |
| CN101225120A (en) * | 2008-01-29 | 2008-07-23 | 武汉理工大学 | Method for micro-wave preparation of konjac glucomannan grafted polyesters |
| CN105256642A (en) * | 2015-10-17 | 2016-01-20 | 浙江理工大学 | Production method of medical packaging paper with high bacteria blocking performance |
| CN105568771A (en) * | 2015-12-24 | 2016-05-11 | 浙江华川实业集团有限公司 | Strong antibacterial ability medical packaging raw paper and preparation method thereof |
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