CN109986676A - A kind of production technology for the disposable lunch-box that can be degraded in a natural environment - Google Patents
A kind of production technology for the disposable lunch-box that can be degraded in a natural environment Download PDFInfo
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- CN109986676A CN109986676A CN201910273676.0A CN201910273676A CN109986676A CN 109986676 A CN109986676 A CN 109986676A CN 201910273676 A CN201910273676 A CN 201910273676A CN 109986676 A CN109986676 A CN 109986676A
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- stalk
- mixing channel
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- natural environment
- disposable lunch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N5/00—Manufacture of non-flat articles
- B27N5/02—Hollow articles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Paper (AREA)
Abstract
The invention discloses the production technologies for the disposable lunch-box that one kind can degrade in a natural environment.The production technology of the disposable lunch-box that can be degraded in a natural environment, the following steps are included: S1, stalk is taken and is placed it on cutting bed and is cut, stalk after cutting is put into the first mixing channel, S2, the sodium sulfite of 5mmol/g is poured into the first mixing channel and is mixed with stalk, the pH value of mixed liquor is adjusted using sodium hydroxide and sodium sulfite, pH value is set to be maintained at 9-12, mixing inside first mixing channel is easy to heat up, make mixed solution is maintained at 90-100 degree, iron chloride is added, stirring 2 hours, the lignin in stalk is set to carry out carry out sulfonating reaction, lignin is set to obtain lignosulfonates, S3, hydrolysis occurs for lignosulfonates and acid cooking liquor, achieve the effect that make lignin in stalk to separate with cellulose.The present invention conveniently makes disposable lunch-box made of stalk in the natural environment being capable of fast degradation.
Description
Technical field
The present invention relates to disposable lunch-box technical field, specially a kind of disposable lunch-box that can be degraded in a natural environment
Production technology.
Background technique
Common disposable lunch-box switchs to plastics cutlery box from the foam cutlery box of script, and cutlery box is not easy after in nature
It degrades in environment, certain pollution is caused to environment, disposable lunch-box made of stalk is more and more used, energy
Stalk is subjected to secondary use, plays the effect of certain environmental protection, the content of cellulose is 37% or so in stalk, wooden in stalk
The content of element is 17% or so, and lignin has the function of thickening fibre element cell wall, and stalk is made to be not easy to degrade, and fast food
It is getting faster in nowadays social development, disposable lunch-box liquid used in fast food is more and more, not degradable disposable meal
Box is endangered caused by natural environment in lasting rising.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the life for the disposable lunch-box that can be degraded in a natural environment the present invention provides one kind
Production. art solves the problems, such as that common disposable lunch-box be easy to cause certain endanger to environment.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: it is a kind of can degrade in a natural environment it is disposable
The production technology of cutlery box, comprising the following steps:
S1, stalk is taken and is placed it on cutting bed and is cut, the stalk after cutting is put into the first mixing channel
It is interior.
S2, it the sodium sulfite of 5mmol/g is poured into the first mixing channel is mixed with stalk, utilize sodium hydroxide and sulfurous acid
The pH value of mixed liquor is adjusted in sodium, and pH value is made to be maintained at 9-12, is easy to heat up to the mixing inside the first mixing channel,
Make mixed solution is maintained at 90-100 degree, and iron chloride is added, and stirs 2 hours, the lignin in stalk is made to carry out carry out sulfonation
Reaction, makes lignin obtain lignosulfonates.
S3, stalk is removed into the first mixing channel, and stalk is put into the second mixing channel, be that the acid of 4-6 steams by pH value
Boil liquid is poured into the second mixing channel, is heated up to the acid cooking liquor inside the second mixing channel, and acid cooking liquor temperature is protected
It holds between 120-150 degree, stirs 2 hours, make lignosulfonates that hydrolysis occur.
S4, stalk is removed into the second mixing channel, and stalk is put into dryer and is dried, the stalk after drying is put into
It is crushed in pulverizer.
S5, adhesive is poured into inside smashed stalk, and be stirred, complete waste.
S6, it the stalk produced is put into pressuring machine carries out heating compacting, form cutlery box germule, utilize sander pair
Germule is polished, is polished, and the preparation of cutlery box is completed.
Preferably, the quantity of the cutter on cutting bed is ten in step sl, and the distance between each cutter
It is ten centimetres.
Preferably, the bottom of the first mixing channel and the second mixing channel is provided with heating tube, and in step S2 and S3
The inside of one mixing channel and the second mixing channel is provided with temperature inductor.
Preferably, moisture content accounts for 15% in the stalk after drying in step s 4.
(3) beneficial effect
The present invention provides the production technology for the disposable lunch-box that one kind can degrade in a natural environment, the beneficial effect having
Fruit: the production technology of the disposable lunch-box that can be degraded in a natural environment, by sodium sulfite solution with it is wooden in stalk
Element generates sulfonating reaction, can make the lignin conversion lignosulfonates in stalk, introduce sulfonic group, increased stalk
The hydrophily of middle lignin makes the cellulose in lignosulfonates and stalk that depolymerization, Neng Gouyou occur by acid cooking liquor
The appearance for avoiding the lignin in stalk from thickening the cell wall of cellulose in stalk is imitated, can effectively enhance stalk and be made
The speed degraded in the natural environment of cutlery box, achieved the effect that protect natural environment, solve existing primary
Property cutlery box is not easy the case where degrading in a natural environment.
Specific embodiment
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one:
The present invention provides a kind of technical solution: the production technology for the disposable lunch-box that one kind can degrade in a natural environment,
The following steps are included:
S1, stalk is taken and is placed it on cutting bed and is cut, the quantity of the cutter on cutting bed is ten
It is a, and the distance between each cutter are ten centimetres, the stalk after cutting is put into the first mixing channel, makes the wood inside stalk
Quality can adequately be reacted.
S2, it the sodium sulfite of 5mmol/g is poured into the first mixing channel is mixed with stalk, utilize sodium hydroxide and sulfurous acid
The pH value of mixed liquor is adjusted in sodium, and pH value is made to be maintained at 9, is easy to heat up to the mixing inside the first mixing channel, make
Mixed solution is maintained at 90 degree, and iron chloride is added, and iron chloride is catalyst, can be that the lignin inside stalk carries out quickly
Reaction stirs 2 hours, so that the lignin in stalk is carried out carry out sulfonating reaction, lignin is made to obtain lignosulfonates.
S3, stalk is removed into the first mixing channel, and stalk is put into the second mixing channel, the acid boiling for being 6 by pH value
Liquid pours into the second mixing channel, heats up to the acid cooking liquor inside the second mixing channel, keeps acid cooking liquor temperature
It at 120 degree, stirs 2 hours, makes lignosulfonates that hydrolysis occur, the bottom of the first mixing channel and the second mixing channel is all provided with
It is equipped with heating tube, and the inside of the first mixing channel and the second mixing channel is provided with temperature inductor, uses heating tube and temperature
Inductor can the temperature quickly to the first mixing channel and the second mixing channel internal solution control, guarantee reaction progress, wood
The lignin in stalk is separated with cellulose after mahogany sulfonate hydrolysis, is facilitated cellulose to be decomposed, is made stalk system
At cutlery box carry out fast degradation in the natural environment.
S4, stalk is removed into the second mixing channel, and stalk is put into dryer and is dried, water in the stalk after drying
Part accounts for 15%, and the stalk after drying, which is put into pulverizer, to be crushed.
S5, adhesive is poured into inside smashed stalk, and be stirred, complete waste.
S6, it the stalk produced is put into pressuring machine carries out heating compacting, form cutlery box germule, utilize sander pair
Germule is polished, is polished, and the preparation of cutlery box is completed.
Working principle: it is anti-that sulfonation occurs using the lignin in the sodium sulfite solution and stalk inside the first mixing channel
It answers, so that lignin has been introduced sulfonic group and be converted into lignosulfonates, make wood using the acid cooking liquor inside the second mixing channel
Hydrolysis occurs for mahogany sulfonate, and reaching separates lignin with cellulose, and cellulose is enable to obtain in the natural environment
To fast decoupled, disposable lunch-box made of utility stalk is able to carry out the effect of fast degradation, plays centainly to environment
Protective effect.
In conclusion the production technology of the disposable lunch-box that can be degraded in a natural environment, by the first mixing channel and
Sodium sulfite solution and acid cooking liquor inside second mixing channel, separate the lignin in stalk with cellulose, make
Disposable lunch-box energy block speed made of stalk is degraded in the natural environment, is solved common disposable lunch-box and is not easy certainly
It degrades in right environment, is easy the problem of causing damages to environment.
Embodiment two:
The present invention provides a kind of technical solution: the production technology for the disposable lunch-box that one kind can degrade in a natural environment,
The following steps are included:
S1, stalk is taken and is placed it on cutting bed and is cut, the quantity of the cutter on cutting bed is ten
It is a, and the distance between each cutter are ten centimetres, the stalk after cutting is put into the first mixing channel, makes the wood inside stalk
Quality can adequately be reacted.
S2, it the sodium sulfite of 5mmol/g is poured into the first mixing channel is mixed with stalk, utilize sodium hydroxide and sulfurous acid
The pH value of mixed liquor is adjusted in sodium, and pH value is made to be maintained at 10, is easy to heat up to the mixing inside the first mixing channel, make
Mixed solution is maintained at 95 degree, and iron chloride is added, and iron chloride is catalyst, can be that the lignin inside stalk carries out quickly
Reaction stirs 2 hours, so that the lignin in stalk is carried out carry out sulfonating reaction, lignin is made to obtain lignosulfonates.
S3, stalk is removed into the first mixing channel, and stalk is put into the second mixing channel, the acid boiling for being 5 by pH value
Liquid pours into the second mixing channel, heats up to the acid cooking liquor inside the second mixing channel, keeps acid cooking liquor temperature
It at 135 degree, stirs 2 hours, makes lignosulfonates that hydrolysis occur, the bottom of the first mixing channel and the second mixing channel is all provided with
It is equipped with heating tube, and the inside of the first mixing channel and the second mixing channel is provided with temperature inductor, uses heating tube and temperature
Inductor can the temperature quickly to the first mixing channel and the second mixing channel internal solution control, guarantee reaction progress, wood
The lignin in stalk is separated with cellulose after mahogany sulfonate hydrolysis, is facilitated cellulose to be decomposed, is made stalk system
At cutlery box carry out fast degradation in the natural environment.
S4, stalk is removed into the second mixing channel, and stalk is put into dryer and is dried, water in the stalk after drying
Part accounts for 15%, and the stalk after drying, which is put into pulverizer, to be crushed.
S5, adhesive is poured into inside smashed stalk, and be stirred, complete waste；
S6, it the stalk produced is put into pressuring machine carries out heating compacting, form cutlery box germule, utilize sander pair
Germule is polished, is polished, and the preparation of cutlery box is completed.
Working principle: it is anti-that sulfonation occurs using the lignin in the sodium sulfite solution and stalk inside the first mixing channel
It answers, so that lignin has been introduced sulfonic group and be converted into lignosulfonates, make wood using the acid cooking liquor inside the second mixing channel
Hydrolysis occurs for mahogany sulfonate, and reaching separates lignin with cellulose, and cellulose is enable to obtain in the natural environment
To fast decoupled, disposable lunch-box made of utility stalk is able to carry out the effect of fast degradation, plays centainly to environment
Protective effect.
In conclusion the production technology of the disposable lunch-box that can be degraded in a natural environment, by the first mixing channel and
Sodium sulfite solution and acid cooking liquor inside second mixing channel, separate the lignin in stalk with cellulose, make
Disposable lunch-box energy block speed made of stalk is degraded in the natural environment, is solved common disposable lunch-box and is not easy certainly
It degrades in right environment, is easy the problem of causing damages to environment.
Embodiment three:
The present invention provides a kind of technical solution: the production technology for the disposable lunch-box that one kind can degrade in a natural environment,
The following steps are included:
S1, stalk is taken and is placed it on cutting bed and is cut, the quantity of the cutter on cutting bed is ten
It is a, and the distance between each cutter are ten centimetres, the stalk after cutting is put into the first mixing channel, makes the wood inside stalk
Quality can adequately be reacted.
S2, it the sodium sulfite of 5mmol/g is poured into the first mixing channel is mixed with stalk, utilize sodium hydroxide and sulfurous acid
The pH value of mixed liquor is adjusted in sodium, and pH value is made to be maintained at 12, is easy to heat up to the mixing inside the first mixing channel, make
Mixed solution is maintained at 100 degree, and iron chloride is added, and iron chloride is catalyst, can be that the lignin inside stalk carries out fastly
Speed reaction, stirs 2 hours, so that the lignin in stalk is carried out carry out sulfonating reaction, lignin is made to obtain lignosulfonates.
S3, stalk is removed into the first mixing channel, and stalk is put into the second mixing channel, the acid boiling for being 4 by pH value
Liquid pours into the second mixing channel, heats up to the acid cooking liquor inside the second mixing channel, keeps acid cooking liquor temperature
It at 150 degree, stirs 2 hours, makes lignosulfonates that hydrolysis occur, the bottom of the first mixing channel and the second mixing channel is all provided with
It is equipped with heating tube, and the inside of the first mixing channel and the second mixing channel is provided with temperature inductor, uses heating tube and temperature
Inductor can the temperature quickly to the first mixing channel and the second mixing channel internal solution control, guarantee reaction progress, wood
The lignin in stalk is separated with cellulose after mahogany sulfonate hydrolysis, is facilitated cellulose to be decomposed, is made stalk system
At cutlery box carry out fast degradation in the natural environment.
S4, stalk is removed into the second mixing channel, and stalk is put into dryer and is dried, water in the stalk after drying
Part accounts for 15%, and the stalk after drying, which is put into pulverizer, to be crushed.
S5, adhesive is poured into inside smashed stalk, and be stirred, complete waste；
S6, it the stalk produced is put into pressuring machine carries out heating compacting, form cutlery box germule, utilize sander pair
Germule is polished, is polished, and the preparation of cutlery box is completed.
Working principle: it is anti-that sulfonation occurs using the lignin in the sodium sulfite solution and stalk inside the first mixing channel
It answers, so that lignin has been introduced sulfonic group and be converted into lignosulfonates, make wood using the acid cooking liquor inside the second mixing channel
Hydrolysis occurs for mahogany sulfonate, and reaching separates lignin with cellulose, and cellulose is enable to obtain in the natural environment
To fast decoupled, disposable lunch-box made of utility stalk is able to carry out the effect of fast degradation, plays centainly to environment
Protective effect.
In conclusion the production technology of the disposable lunch-box that can be degraded in a natural environment, by the first mixing channel and
Sodium sulfite solution and acid cooking liquor inside second mixing channel, separate the lignin in stalk with cellulose, make
Disposable lunch-box energy block speed made of stalk is degraded in the natural environment, is solved common disposable lunch-box and is not easy certainly
It degrades in right environment, is easy the problem of causing damages to environment.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. the production technology for the disposable lunch-box that one kind can degrade in a natural environment, it is characterised in that: the following steps are included:
S1, stalk is taken and is placed it on cutting bed and is cut, the stalk after cutting is put into the first mixing channel；
S2, it the sodium sulfite of 5mmol/g is poured into the first mixing channel is mixed with stalk, utilize sodium hydroxide and sodium sulfite pair
The pH value of mixed liquor is adjusted, and pH value is made to be maintained at 9-12, is easy to heat up to the mixing inside the first mixing channel, makes to mix
That closes solution is maintained at 90-100 degree, and iron chloride is added, and stirs 2 hours, the lignin in stalk is made to carry out carry out sulfonating reaction,
Lignin is set to obtain lignosulfonates；
S3, stalk is removed into the first mixing channel, and stalk is put into the second mixing channel, the acid cooking liquor for being 4-6 by pH value
It pours into the second mixing channel, heats up to the acid cooking liquor inside the second mixing channel, be maintained at acid cooking liquor temperature
It between 120-150 degree, stirs 2 hours, makes lignosulfonates that hydrolysis occur；
S4, stalk is removed into the second mixing channel, and stalk is put into dryer and is dried, the stalk after drying is put into crushing
It is crushed in machine；
S5, adhesive is poured into inside smashed stalk, and be stirred, complete waste；
S6, it the stalk produced is put into pressuring machine carries out heating compacting, cutlery box germule is formed, using sander to germule
It polished, polished, complete the preparation of cutlery box.
2. the production technology for the disposable lunch-box that one kind according to claim 1 can degrade in a natural environment, feature
Be: the quantity of the cutter on cutting bed is ten in step sl, and the distance between each cutter are ten centimetres.
3. the production technology for the disposable lunch-box that one kind according to claim 1 can degrade in a natural environment, feature
Be: the bottom of the first mixing channel and the second mixing channel is provided with heating tube in step S2 and S3, and the first mixing channel and
The inside of second mixing channel is provided with temperature inductor.
4. the production technology for the disposable lunch-box that one kind according to claim 1 can degrade in a natural environment, feature
Be: moisture content accounts for 15% in the stalk after drying in step s 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273676.0A CN109986676A (en) | 2019-04-06 | 2019-04-06 | A kind of production technology for the disposable lunch-box that can be degraded in a natural environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273676.0A CN109986676A (en) | 2019-04-06 | 2019-04-06 | A kind of production technology for the disposable lunch-box that can be degraded in a natural environment |
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| CN109986676A true CN109986676A (en) | 2019-07-09 |
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| CN201910273676.0A Pending CN109986676A (en) | 2019-04-06 | 2019-04-06 | A kind of production technology for the disposable lunch-box that can be degraded in a natural environment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079687A (en) * | 1992-06-11 | 1993-12-22 | 瑞典商顺智公司 | The manufacturing of sheet material |
| CN101445731A (en) * | 2008-12-25 | 2009-06-03 | 吴俊三 | Degradable liquid mulching film and production method thereof |
| CN104630307A (en) * | 2014-12-24 | 2015-05-20 | 山东龙力生物科技股份有限公司 | Bio-refinery integrated process for separating and classifying whole-plant corn component |
| CN106046277A (en) * | 2016-07-23 | 2016-10-26 | 安阳华森纸业有限责任公司 | Preparation method of reaction type emulsion gel water shutoff agent |
| CN107083081A (en) * | 2017-06-08 | 2017-08-22 | 合肥峰腾节能科技有限公司 | Environmentally friendly disposable tableware of a kind of string and preparation method thereof |
| CN107474259A (en) * | 2016-06-08 | 2017-12-15 | 昌吉学院 | A kind of method that antioxidant sodium lignin sulfonate is prepared using cotton stalk |
-
2019
- 2019-04-06 CN CN201910273676.0A patent/CN109986676A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079687A (en) * | 1992-06-11 | 1993-12-22 | 瑞典商顺智公司 | The manufacturing of sheet material |
| CN101445731A (en) * | 2008-12-25 | 2009-06-03 | 吴俊三 | Degradable liquid mulching film and production method thereof |
| CN104630307A (en) * | 2014-12-24 | 2015-05-20 | 山东龙力生物科技股份有限公司 | Bio-refinery integrated process for separating and classifying whole-plant corn component |
| CN107474259A (en) * | 2016-06-08 | 2017-12-15 | 昌吉学院 | A kind of method that antioxidant sodium lignin sulfonate is prepared using cotton stalk |
| CN106046277A (en) * | 2016-07-23 | 2016-10-26 | 安阳华森纸业有限责任公司 | Preparation method of reaction type emulsion gel water shutoff agent |
| CN107083081A (en) * | 2017-06-08 | 2017-08-22 | 合肥峰腾节能科技有限公司 | Environmentally friendly disposable tableware of a kind of string and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 李忠正著: "《禾草类纤维制浆造纸》", 31 March 2013, 中国轻工业出版社 * |
| 王世娟等主编: "《农药生产技术》", 30 August 2008, 化学工业出版社 * |
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