CN108547179A - Food package film and preparation method thereof - Google Patents

Food package film and preparation method thereof Download PDF

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Publication number
CN108547179A
CN108547179A CN201810541870.8A CN201810541870A CN108547179A CN 108547179 A CN108547179 A CN 108547179A CN 201810541870 A CN201810541870 A CN 201810541870A CN 108547179 A CN108547179 A CN 108547179A
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CN
China
Prior art keywords
dosage
weight
parts
preparation
food package
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810541870.8A
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Chinese (zh)
Inventor
蒿建雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Polynet Information Technology Co Ltd
Original Assignee
Wuhu Polynet Information Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhu Polynet Information Technology Co Ltd filed Critical Wuhu Polynet Information Technology Co Ltd
Priority to CN201810541870.8A priority Critical patent/CN108547179A/en
Publication of CN108547179A publication Critical patent/CN108547179A/en
Withdrawn legal-status Critical Current

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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
    • D21H13/36—Inorganic fibres or flakes
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • 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
    • D21H17/25—Cellulose
    • D21H17/26—Ethers thereof
    • 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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • 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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/53—Polyethers; Polyesters
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Wrappers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of food package film and preparation method thereof, which includes：Glass fibre and ceramic fibre 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, sodium benzoate, carboxymethyl cellulose, modified fibre, polyvinyl alcohol, polylactic resin 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

Food package film and preparation method thereof
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 ceramic fibre 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 60-90 DEG C, Time is 1-3min, and the condition of second of heat treatment includes：Temperature is 40-50 DEG C, time 10-20min；
(2) by wood pulp, sodium benzoate, carboxymethyl cellulose, modified fibre, polyvinyl alcohol, polylactic resin and retention agent Pulp suspension M is formed after being stirred；
(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 sodium benzoate is 30-50 parts by weight, and the dosage of the carboxymethyl cellulose is 1-7 parts by weight, institute The dosage for stating modified fibre is 3-10 parts by weight, and the dosage of the polyvinyl alcohol is 10-20 parts by weight, the polylactic resin Dosage is 5-15 parts by weight, and 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 ceramic fibre 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 60-90 DEG C, when Between be 1-3min, the condition of second heat treatment includes：Temperature is 40-50 DEG C, time 10-20min；By wood pulp, benzoic acid Sodium, carboxymethyl cellulose, modified fibre, polyvinyl alcohol, polylactic resin and retention agent form pulp suspension after being stirred M；The pulp suspension M is manufactured paper with pulp molding, food package film is obtained after processing, by the synergistic effect between each raw material, makes Packaging bag obtained has excellent mechanical strength and heat-resisting ability, while the method for being used to prepare the packaging bag it 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 pottery Porcelain 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 60-90 DEG C, time 1-3min, second of heat treatment Condition include：Temperature is 40-50 DEG C, time 10-20min；By wood pulp, sodium benzoate, carboxymethyl cellulose, modified fibre Dimension, polyvinyl alcohol, polylactic resin and retention agent form pulp suspension M after being stirred；The pulp suspension M is manufactured paper with pulp Molding, food package film is obtained after processing；Wherein, the dosage of the wood pulp relative to 100 parts by weight, the sodium benzoate is 30- The dosage of 50 parts by weight, the carboxymethyl cellulose is 1-7 parts by weight, and the dosage of the modified fibre is 3-10 parts by weight, institute The dosage for stating polyvinyl alcohol is 10-20 parts by weight, and the dosage of the polylactic resin is 5-15 parts by weight, the use of the retention agent Amount 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 sodium benzoate is 35-45 parts by weight, the carboxylic The dosage of methylcellulose is 2-4 parts by weight, and the dosage of the modified fibre is 5-7 parts by weight, the dosage of the polyvinyl alcohol Dosage for 14-16 parts by weight, the polylactic resin 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 sodium benzoate, in a kind of preferred embodiment of the present invention In, the retention agent is made of polyethyleneimine and polyvinyl alcohol, and the quality of the polyethyleneimine and the polyvinyl alcohol Than being 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 ceramic fibre 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 ceramic fibre 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 60 DEG C, and the time is 1min, the condition being heat-treated for the second time include：Temperature is 40 DEG C, time 10min；By 100g wood pulps, 35g sodium benzoates, 2g Carboxymethyl cellulose, 5g modified fibres, 14g polyvinyl alcohol, 8g polylactic resin and 2g retention agents are (by polyethyleneimine and poly- second Enol forms, and the mass ratio of the polyethyleneimine and the polyvinyl alcohol is 1:1) it is stirred (mixing speed 100r/ Min pulp suspension M) is formed afterwards；The pulp suspension M is manufactured paper with pulp molding, food package film A1 is obtained after processing.
Embodiment 2
Glass fibre and ceramic fibre 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 90 DEG C, and the time is 3min, the condition being heat-treated for the second time include：Temperature is 50 DEG C, time 20min；By 100g wood pulps, 45g sodium benzoates, 4g Carboxymethyl cellulose, 7g modified fibres, 16g polyvinyl alcohol, 12g polylactic resin and 4g retention agents (by polyethyleneimine and gather Vinyl alcohol forms, and the mass ratio of the polyethyleneimine and the polyvinyl alcohol is 1:4) it is stirred (mixing speed 120r/ Min pulp suspension M) is formed afterwards；The pulp suspension M is manufactured paper with pulp molding, food package film A2 is obtained after processing.
Embodiment 3
Glass fibre and ceramic fibre 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 75 DEG C, and the time is 2min, the condition being heat-treated for the second time include：Temperature is 45 DEG C, time 15min；By 100g wood pulps, 40g sodium benzoates, 3g Carboxymethyl cellulose, 6g modified fibres, 15g polyvinyl alcohol, 10g polylactic resin and 3g retention agents (by polyethyleneimine and gather Vinyl alcohol forms, and the mass ratio of the polyethyleneimine and the polyvinyl alcohol is 1:2) it is stirred (mixing speed 110r/ Min pulp suspension M) is formed afterwards；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, the use of the sodium benzoate Amount is 30g, and the dosage of the carboxymethyl cellulose is 1g, and the dosage of the modified fibre is 3g, the dosage of the polyvinyl alcohol Dosage for 10g, the polylactic resin 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, the use of the sodium benzoate Amount is 50g, and the dosage of the carboxymethyl cellulose is 7g, and the dosage of the modified fibre is 10g, the dosage of the polyvinyl alcohol Dosage for 20g, the polylactic resin 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, the use of the sodium benzoate Amount is 20g, and the dosage of the carboxymethyl cellulose is 0.5g, and the dosage of the modified fibre is 2g, the use of the polyvinyl alcohol Amount is 7g, and the dosage of the polylactic resin 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, the use of the sodium benzoate Amount is 60g, and the dosage of the carboxymethyl cellulose is 10g, and the dosage of the modified fibre is 12g, the use of the polyvinyl alcohol Amount is 22g, and the dosage of the polylactic resin 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 35 Without apparent deformation
A2 32 Without apparent deformation
A3 31 Without apparent deformation
A4 23 Without apparent deformation
25 23 Slight deformation
D1 15 Gross distortion
D2 17 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 ceramic fibre 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 60-90 DEG C, when Between be 1-3min, the condition of second heat treatment includes：Temperature is 40-50 DEG C, time 10-20min；
(2) wood pulp, sodium benzoate, carboxymethyl cellulose, modified fibre, polyvinyl alcohol, polylactic resin and retention agent are stirred Pulp suspension M is formed after mixing；
(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 sodium benzoate is 30-50 parts by weight, and the dosage of the carboxymethyl cellulose is 1-7 parts by weight, described to change Property fiber dosage be 3-10 parts by weight, the dosage of the polyvinyl alcohol is 10-20 parts by weight, the dosage of the polylactic resin Dosage for 5-15 parts by weight, the 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 use of the sodium benzoate Amount is 35-45 parts by weight, and the dosage of the carboxymethyl cellulose is 2-4 parts by weight, and the dosage of the modified fibre is 5-7 weight Part, the dosage of the polyvinyl alcohol is 14-16 parts by weight, and the dosage of the polylactic resin is 8-12 parts by weight, the retention The dosage of agent is 2-4 parts by weight.
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 ceramic fibre 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.
CN201810541870.8A 2018-05-30 2018-05-30 Food package film and preparation method thereof Withdrawn CN108547179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810541870.8A CN108547179A (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
CN201810541870.8A CN108547179A (en) 2018-05-30 2018-05-30 Food package film and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108547179A true CN108547179A (en) 2018-09-18

Family

ID=63511552

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810541870.8A Withdrawn CN108547179A (en) 2018-05-30 2018-05-30 Food package film and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108547179A (en)

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