CN108677617A - Food package film and preparation method thereof - Google Patents
Food package film and preparation method thereof Download PDFInfo
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- CN108677617A CN108677617A CN201810541864.2A CN201810541864A CN108677617A CN 108677617 A CN108677617 A CN 108677617A CN 201810541864 A CN201810541864 A CN 201810541864A CN 108677617 A CN108677617 A CN 108677617A
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- dosage
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- pulp
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Classifications
-
- 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
- D21H13/26—Polyamides; Polyimides
-
- 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
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/22—Proteins
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/30—Alginic acid or alginates
-
- 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
-
- 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
- D21H21/18—Reinforcing agents
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a kind of food package film and preparation method thereof, which includes：Glass fibre and aramid fiber are mixed, 12 is impregnated in sodium hydroxide solution later for 24 hours, is cleaned after taking-up, be thermally treated resulting in modified fibre twice respectively later；Pulp suspension M is formed after wood pulp, straw pulp, gelatin, modified fibre, chitosan, sodium alginate and retention agent are stirred；The pulp suspension M is manufactured paper with pulp molding, food package film is obtained after processing；It is relatively low to solve common food package film its intensity, while heat-resisting ability is weaker, is easy to soften when containing hotter prepared food so that the problem of its mechanical strength is greatly reduced.
Description
Technical field
The present invention relates to packaging bag preparation fields, and in particular, to food package film and preparation method thereof.
Background technology
Food package film refers to directly being contacted with food, the membrane container for containing and protecting food.Common food
Its intensity of packaging film is relatively low, while heat-resisting ability is weaker, is easy to soften when containing hotter prepared food so that its mechanical strength
It is greatly reduced.
Therefore it provides a kind of heat-resisting ability is stronger, the food package film and preparation method thereof that heat will not soften is this
The problem of invention urgent need to resolve.
Invention content
The object of the present invention is to provide a kind of food package film and preparation method thereof, solve common food package film its
Intensity is relatively low, while heat-resisting ability is weaker, is easy to soften when containing hotter prepared food so that its mechanical strength is greatly reduced
The problem of.
To achieve the goals above, the present invention provides a kind of preparation methods of food package film, wherein the preparation side
Method includes：
(1) glass fibre and aramid fiber are mixed, impregnates 12-24h in sodium hydroxide solution later, is carried out after taking-up
Cleaning, is thermally treated resulting in modified fibre twice respectively later；The condition of heat treatment includes for the first time：Temperature is 40-50 DEG C,
Time is 10-20min, and the condition of second of heat treatment includes：Temperature is 60-90 DEG C, time 1-3min；
(2) paper is formed after being stirred wood pulp, straw pulp, gelatin, modified fibre, chitosan, sodium alginate and retention agent
Mass suspension M；
(3) the pulp suspension M is manufactured paper with pulp molding, food package film is obtained after processing；Wherein, relative to 100 weight
The dosage of the wood pulp of part, the straw pulp is 30-50 parts by weight, and the dosage of the gelatin is 1-7 parts by weight, the modified fibre
Dosage is 3-10 parts by weight, and the dosage of the chitosan is 10-20 parts by weight, and the dosage of the sodium alginate is 5-15 weight
Part, the dosage of the retention agent is 1-5 parts by weight.
The present invention also provides a kind of food package films, wherein the food package film is made by above-mentioned preparation method.
Through the above technical solutions, the present invention provides a kind of food package films and preparation method thereof, wherein the preparation
Method includes：Glass fibre and aramid fiber are mixed, impregnate 12-24h in sodium hydroxide solution later, is carried out after taking-up clear
It washes, is thermally treated resulting in modified fibre twice respectively later；The condition of heat treatment includes for the first time：Temperature is 40-50 DEG C, when
Between be 10-20min, the condition of second heat treatment includes：Temperature is 60-90 DEG C, time 1-3min；By wood pulp, straw pulp, bright
Glue, modified fibre, chitosan, sodium alginate and retention agent form pulp suspension M after being stirred；By the pulp suspension
M manufactures paper with pulp molding, obtains food package film after processing, passes through the synergistic effect between each raw material so that packaging bag obtained has
Excellent mechanical strength and heat-resisting ability, while the method for being used to prepare the packaging bag is simple, raw material is easy to get.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of preparation method of food package film, the preparation method includes：By glass fibre and virtue
Synthetic fibre fiber mixes, and impregnates 12-24h in sodium hydroxide solution later, is cleaned after taking-up, carries out respectively later at heat twice
Reason obtains modified fibre；The condition of heat treatment includes for the first time：Temperature is 40-50 DEG C, time 10-20min, at second of heat
The condition of reason includes：Temperature is 60-90 DEG C, time 1-3min；By wood pulp, straw pulp, gelatin, modified fibre, chitosan, seaweed
Sour sodium and retention agent form pulp suspension M after being stirred；The pulp suspension M is manufactured paper with pulp molding, is eaten after processing
Product packaging film；Wherein, the dosage of the wood pulp relative to 100 parts by weight, the straw pulp is 30-50 parts by weight, the use of the gelatin
Amount is 1-7 parts by weight, and the dosage of the modified fibre is 3-10 parts by weight, and the dosage of the chitosan is 10-20 parts by weight, institute
The dosage for stating sodium alginate is 5-15 parts by weight, and the dosage of the retention agent is 1-5 parts by weight.
In order to enable packaging bag obtained has more excellent mechanical strength and heat-resisting ability, in one kind of the present invention
In preferred embodiment, relative to the wood pulp of 100 parts by weight, the dosage of the straw pulp is 35-45 parts by weight, the gelatin
Dosage is 2-4 parts by weight, and the dosage of the modified fibre is 5-7 parts by weight, and the dosage of the chitosan is 14-16 parts by weight,
The dosage of the sodium alginate is 8-12 parts by weight, and the dosage of the retention agent is 2-4 parts by weight.
In order to improve retention of the auxiliary material in wood pulp and straw pulp, in a kind of preferred embodiment of the present invention, institute
It states retention agent to be made of polyethyleneimine and polyvinyl alcohol, and the mass ratio of the polyethyleneimine and the polyvinyl alcohol is 1:
1-4。
The modified fibre can be the conventional use of type of those skilled in the art, for example, in order to improve packaging bag obtained
Mechanical strength, the length of the modified fibre is 1-3mm.
In order to enable preferably being mixed between raw material, in a kind of preferred embodiment of the present invention, the stirring is mixed
The speed of conjunction is 100-120r/min.
In order to enable packaging bag obtained has more excellent mechanical strength and heat-resisting ability, in one kind of the present invention
In preferred embodiment, in step (1), glass fibre and aramid fiber are 1 according to mass ratio:1-2 is mixed.
The present invention also provides a kind of food package films, wherein the food package film is made by above-mentioned preparation method.
The present invention will be described in detail by way of examples below.In following embodiment, modified fibre is Beijing state person of outstanding talent
The commercially available product that chemical machinery Co., Ltd provides.
Embodiment 1
Glass fibre and aramid fiber are mixed, 12h is impregnated in sodium hydroxide solution later, is cleaned after taking-up,
It is thermally treated resulting in modified fibre twice respectively later；The condition of heat treatment includes for the first time：Temperature is 40 DEG C, and the time is
10min, the condition being heat-treated for the second time include：Temperature is 60 DEG C, time 1min；By 100g wood pulps, 35g straw pulps, 2g gelatin,
5g modified fibres, 14g chitosans, 8g sodium alginates and 2g retention agents (are made of, and described poly- polyethyleneimine and polyvinyl alcohol
The mass ratio of aziridine and the polyvinyl alcohol is 1:1) it is stirred (mixing speed 100r/min) and forms pulp suspension afterwards
Liquid M；The pulp suspension M is manufactured paper with pulp molding, food package film A1 is obtained after processing.
Embodiment 2
Glass fibre and aramid fiber are mixed, impregnates in sodium hydroxide solution for 24 hours, is cleaned after taking-up later,
It is thermally treated resulting in modified fibre twice respectively later；The condition of heat treatment includes for the first time：Temperature is 50 DEG C, and the time is
20min, the condition being heat-treated for the second time include：Temperature is 90 DEG C, time 3min；By 100g wood pulps, 45g straw pulps, 4g gelatin,
7g modified fibres, 16g chitosans, 12g sodium alginates and 4g retention agents (are made of, and described polyethyleneimine and polyvinyl alcohol
The mass ratio of polyethyleneimine and the polyvinyl alcohol is 1:4) being stirred (mixing speed 120r/min), formation paper pulp is outstanding afterwards
Supernatant liquid M；The pulp suspension M is manufactured paper with pulp molding, food package film A2 is obtained after processing.
Embodiment 3
Glass fibre and aramid fiber are mixed, 18h is impregnated in sodium hydroxide solution later, is cleaned after taking-up,
It is thermally treated resulting in modified fibre twice respectively later；The condition of heat treatment includes for the first time：Temperature is 45 DEG C, and the time is
15min, the condition being heat-treated for the second time include：Temperature is 75 DEG C, time 2min；By 100g wood pulps, 40g straw pulps, 3g gelatin,
6g modified fibres, 15g chitosans, 10g sodium alginates and 3g retention agents (are made of, and described polyethyleneimine and polyvinyl alcohol
The mass ratio of polyethyleneimine and the polyvinyl alcohol is 1:2) being stirred (mixing speed 110r/min), formation paper pulp is outstanding afterwards
Supernatant liquid M；The pulp suspension M is manufactured paper with pulp molding, food package film A3 is obtained after processing.
Embodiment 4
It is prepared according to the method for embodiment 1, unlike, the dosage of wood pulp is 100g, and the dosage of the straw pulp is
The dosage of 30g, the gelatin are 1g, and the dosage of the modified fibre is 3g, and the dosage of the chitosan is 10g, the seaweed
The dosage of sour sodium is 5g, and the dosage of the retention agent is 1g, obtains food package film A4.
Embodiment 5
It is prepared according to the method for embodiment 1, unlike, the dosage of wood pulp is 100g, and the dosage of the straw pulp is
The dosage of 50g, the gelatin are 7g, and the dosage of the modified fibre is 10g, and the dosage of the chitosan is 20g, the seaweed
The dosage of sour sodium is 15g, and the dosage of the retention agent is 5g, obtains food package film A5.
Comparative example 1
It is prepared according to the method for embodiment 1, unlike, the dosage of wood pulp is 100g, and the dosage of the straw pulp is
The dosage of 20g, the gelatin are 0.5g, and the dosage of the modified fibre is 2g, and the dosage of the chitosan is 7g, the seaweed
The dosage of sour sodium is 2g, and the dosage of the retention agent is 0.5g, obtains food package film D1.
Comparative example 2
It is prepared according to the method for embodiment 1, unlike, the dosage of wood pulp is 100g, and the dosage of the straw pulp is
The dosage of 60g, the gelatin are 10g, and the dosage of the modified fibre is 12g, and the dosage of the chitosan is 22g, the sea
The dosage of mosanom is 18g, and the dosage of the retention agent is 8g, obtains food package film D2.
Test case 1
Food package film A1-A5, D1 and D2 obtained are placed in 30min under 70 DEG C of environment, observe its deformation.
Table 1
| Embodiment is numbered | Tensile strength (MPa) | Surface deformation situation |
| A1 | 37 | Without apparent deformation |
| A2 | 36 | Without apparent deformation |
| A3 | 35 | Without apparent deformation |
| A4 | 19 | Without apparent deformation |
| A5 | 18 | Slight deformation |
| D1 | 13 | Gross distortion |
| D2 | 12 | Gross distortion |
Packaging bag A1-A5 produced within the scope of the present invention is can be seen that by above table data, tensile strength is wanted
Higher than packaging bag D1 and D2 produced outside the scope of the present invention, and packaging bag A1-A5 is unlikely to deform under high temperature environment, and D1 and
Gross distortion can occur for D2, while packaging bag obtained has more excellent performance in currently preferred range, thus
It can obtain that mechanical strength is higher, the strong packaging bag of heat-resisting ability.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (7)
1. a kind of preparation method of food package film, which is characterized in that the preparation method includes：
(1) glass fibre and aramid fiber are mixed, impregnates 12-24h in sodium hydroxide solution later, carried out after taking-up clear
It washes, is thermally treated resulting in modified fibre twice respectively later；The condition of heat treatment includes for the first time：Temperature is 40-50 DEG C, when
Between be 10-20min, the condition of second heat treatment includes：Temperature is 60-90 DEG C, time 1-3min；
(2) paper pulp is formed after being stirred wood pulp, straw pulp, gelatin, modified fibre, chitosan, sodium alginate and retention agent to hang
Supernatant liquid M；
(3) the pulp suspension M is manufactured paper with pulp molding, food package film is obtained after processing；Wherein, relative to 100 parts by weight
The dosage of wood pulp, the straw pulp is 30-50 parts by weight, and the dosage of the gelatin is 1-7 parts by weight, the dosage of the modified fibre
Dosage for 3-10 parts by weight, the chitosan is 10-20 parts by weight, and the dosage of the sodium alginate is 5-15 parts by weight, institute
The dosage for stating retention agent is 1-5 parts by weight.
2. preparation method according to claim 1, wherein relative to the wood pulp of 100 parts by weight, the dosage of the straw pulp is
The dosage of 35-45 parts by weight, the gelatin is 2-4 parts by weight, and the dosage of the modified fibre is 5-7 parts by weight, and the shell is poly-
The dosage of sugar is 14-16 parts by weight, and the dosage of the sodium alginate is 8-12 parts by weight, and the dosage of the retention agent is 2-4 weights
Measure part.
3. preparation method according to claim 1, wherein the retention agent is made of polyethyleneimine and polyvinyl alcohol,
And the mass ratio of the polyethyleneimine and the polyvinyl alcohol is 1:1-4.
4. preparation method according to claim 1, wherein the length of the modified fibre is 1-3mm.
5. preparation method according to claim 1, wherein the speed being stirred is 100-120r/min.
6. preparation method according to claim 1, wherein in step (1), glass fibre and aramid fiber are according to quality
Than being 1:1-2 is mixed.
7. a kind of food package film, which is characterized in that the food package film is by the system described in any one of claim 1-6
Preparation Method is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541864.2A CN108677617A (en) | 2018-05-30 | 2018-05-30 | Food package film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541864.2A CN108677617A (en) | 2018-05-30 | 2018-05-30 | Food package film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108677617A true CN108677617A (en) | 2018-10-19 |
Family
ID=63808967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810541864.2A Withdrawn CN108677617A (en) | 2018-05-30 | 2018-05-30 | Food package film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108677617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115136982A (en) * | 2022-07-20 | 2022-10-04 | 广西壮族自治区农业科学院 | Litchi color-protecting storage and preservation method |
-
2018
- 2018-05-30 CN CN201810541864.2A patent/CN108677617A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115136982A (en) * | 2022-07-20 | 2022-10-04 | 广西壮族自治区农业科学院 | Litchi color-protecting storage and preservation method |
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Application publication date: 20181019 |
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