CN1231866A - Method for making disposable food container of natural plant leaves and shells by hot forming - Google Patents
Method for making disposable food container of natural plant leaves and shells by hot forming Download PDFInfo
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- CN1231866A CN1231866A CN 98110780 CN98110780A CN1231866A CN 1231866 A CN1231866 A CN 1231866A CN 98110780 CN98110780 CN 98110780 CN 98110780 A CN98110780 A CN 98110780A CN 1231866 A CN1231866 A CN 1231866A
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- hot
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- shoot shell
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Abstract
An expendable food container is made of the leaves and shell of natural plant through pre-treating, loading in moulds, clamping the moulds, hot pressing for shaping, baking, cooling, demoulding and removing excess edge by cutting. The process features that when it is heated, its sterilization and baking are conducted at same time. Said food container has the advantages of no deformation and leakage, low cost, easy degradation and no environmental pollution.
Description
The present invention relates to the food containers made by natural plant leaves and shells, particularly a kind of manufacture method of the disposable foodstuff vessel by natural plant leaves and shells by hot forming.
Existing disposable plastic lunch box uses and abandons the difficult degraded in back and rotten, causes white pollution, has endangered natural environment and human health.
A kind of food package box made from green plants is arranged, and the method that is adopted is that the stem of plant, leaf are made paper pulp, makes paper through series of processes again, food prepared therefrom box then, and this method production cost height, complex process is difficult for being accepted by consumers in general.
Also have a kind of food container made from the natural plants blade, must at first make sheet material, then sheet material is made packing container, this packing container manufacturing technique complexity, the production cost of formation is higher, and the market competitiveness can be affected.
Another Disposable tableware made of bamboo shoot shell, its manufacturing technique are also comparatively complicated, must bond after sterilizing and be pressed into clamping plate, again after surface anti-seepage is handled at in-mold molding, this tableware manufacture craft is more, also needs binding agent and various surface anti-seepage to handle material thoroughly, has increased production cost.
The method for making disposable food container that the purpose of this invention is to provide a kind of natural plant leaves and shells by hot forming, it is raw material with the natural plant leaves and shells, and food containers is made in hot pressing, makes simply, and production cost is low, and container can decompose voluntarily, does not pollute the environment.
Technical solution of the present invention is as follows:
A kind of method for making disposable food container of natural plant leaves and shells by hot forming, it is raw material with the natural plant leaves and shells, its manufacture process is: (a) preliminary treatment → (b) dress mould matched moulds → (c) hot-forming and oven dry → (d) cooling → (e) demoulding and side cut;
(a) adopt and to dry the bamboo shoot shell of preservation or fresh bamboo shoot shell carries out preliminary treatment, clean with hot water before processing, again the bamboo shoot shell is flattened the back and soak a period of time in hot water, taking-up drains, overlapping pressing;
(b) the bamboo shoot shell is packed into former, formpiston closes;
(c) mould is delivered to pressing mold in the controlled heating clamber, hot-forming, the heating-up temperature when hot-forming is 200 ℃～250 ℃, and pressure is 2～5kg/cm
2, be 5～10 seconds pressing time, and dry in heating clamber, and bake out temperature is similarly 200 ℃～250 ℃, and drying time is 5 minutes;
(d) mould is shifted out controlled heating clamber, blowing is cooled to room temperature to mould;
(e) container molding blank one piece is cut edge, container molding is taken out in the demoulding.
The present invention utilizes wide leaf shell of nontoxic natural plants, the special bamboo shoot shell that adopts, direct heat is molded to be food containers, its heating process can realize disinfection and oven dry simultaneously, handle without any need for impermeable coating, under-40 ℃～+ 90 ℃ temperature, have good intensity and watertightness, indeformable, water-tight.Adopt method of the present invention to can be made into disposable lunch box, make simply, production cost is low, uses up to be easy to rot to decompose after abandoning, and does not pollute the environment.
Below in conjunction with embodiment the present invention is described in detail.
A kind of method for making disposable food container of natural plant leaves and shells by hot forming, it is a raw material with wide leaf shell of natural plants, adopts the bamboo shoot shell especially, direct heat is molded to be food containers.
The manufacture process of this food containers is: (a) preliminary treatment → (b) dress mould matched moulds → (c) hot-forming and oven dry → (d) cooling → (e) demoulding and side cut.Its concrete manufacture method is as follows:
(a) adopt and to dry the bamboo shoot shell of preservation or fresh bamboo shoot shell, as the moso bamboo shoot shell, the bamboo shoot shell that comes off after the well-thought-out plan of coarse wool bamboo particularly, the plastic container of the area of a leaf shell.The bamboo shoot shell is carried out preliminary treatment, promptly clean with hot water before processing, again the bamboo shoot shell is flattened the back and soak a period of time in hot water, taking-up drains, overlapping pressing.In the preprocessing process of the best, need clean with 60 ℃ of hot water the bamboo shoot shell, again the bamboo shoot shell is flattened the back and in 60 ℃ of hot water, soaked 2 hours, taking-up drains, overlapping pressing.
(b) the bamboo shoot shell is packed into former, formpiston closes.Mould can adopt many covers with the fashionable dress mould.
(c) mould is delivered to the indoor many drifts pressing mold of controlled heating, simultaneously hot-forming to many molds, the heating-up temperature when hot-forming is 200 ℃～250 ℃, and pressure is 2～5kg/cm
2, be 5～10 seconds pressing time.And dry in heating clamber, bake out temperature is similarly 200 ℃～250 ℃, and drying time is 5 minutes.In hot-forming and drying course, the optimum heating temperature when hot-forming is 200 ℃, and optimum pressure is 3kg/cm
2, the optimum pressurized time was 5 seconds; But along with the thickness of bamboo shoot shell is different with humidity, pressure and pressing time are also different, respectively decide by different situations.
(d) mould is shifted out controlled heating clamber, blowing is cooled to room temperature to mould.
(e) container molding blank one piece is cut edge, container molding is taken out in the demoulding.Then with finished product arrangement vanning.
Make disposable foodstuff vessel according to method of the present invention, both can adopt sheet bamboo shoot shell to make raw material, also can adopt thin slice bamboo shoot shell and natural plants slender lobule shell to make raw material, to the necessary multilayer build-up of thin slice leaf shell, and bonding in addition with food adhesive, adorn the mould matched moulds then, hot-forming.
Claims (3)
1. the method for making disposable food container of a natural plant leaves and shells by hot forming, it is raw material with the natural plant leaves and shells, it is characterized in that its manufacture process is: (a) preliminary treatment → (b) dress mould matched moulds → (c) hot-forming and oven dry → (d) cooling → (e) demoulding and side cut;
(a) adopt and to dry the bamboo shoot shell of preservation or fresh bamboo shoot shell carries out preliminary treatment, clean with hot water before processing, again the bamboo shoot shell is flattened the back and soak a period of time in hot water, taking-up drains, overlapping pressing;
(b) the bamboo shoot shell is packed into former, formpiston closes;
(c) mould is delivered to pressing mold in the controlled heating clamber, hot-forming, the heating-up temperature when hot-forming is 200 ℃～250 ℃, and pressure is 2～5kg/cm
2, be 5～10 seconds pressing time, and dry in heating clamber, and bake out temperature is similarly 200 ℃～250 ℃, and drying time is 5 minutes;
(d) mould is shifted out controlled heating clamber, blowing is cooled to room temperature to mould;
(e) container molding blank one piece is cut edge, container molding is taken out in the demoulding.
2. the method for making disposable food container of natural plant leaves and shells by hot forming according to claim 1 is characterized in that, need clean with 60 ℃ of hot water the bamboo shoot shell in the described preprocessing process, again the bamboo shoot shell is flattened the back and soaks 2 hours in 60 ℃ of hot water.
3. the method for making disposable food container of natural plant leaves and shells by hot forming according to claim 1 is characterized in that, the optimum heating temperature in the described hot-forming and drying course when hot-forming is 200 ℃, and optimum pressure is 3kg/cm
2, be 5 seconds best heat time heating time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110780 CN1231866A (en) | 1998-04-16 | 1998-04-16 | Method for making disposable food container of natural plant leaves and shells by hot forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110780 CN1231866A (en) | 1998-04-16 | 1998-04-16 | Method for making disposable food container of natural plant leaves and shells by hot forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1231866A true CN1231866A (en) | 1999-10-20 |
Family
ID=5220801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98110780 Pending CN1231866A (en) | 1998-04-16 | 1998-04-16 | Method for making disposable food container of natural plant leaves and shells by hot forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1231866A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388290A (en) * | 2012-05-11 | 2013-11-13 | 广州华工环源模具有限公司 | Production system for paper pulp moulded products and production method utilizing production system |
| EP2743079A1 (en) | 2011-10-11 | 2014-06-18 | Yves Boulard | Biodegradable food laminate from plant leaves in particular for producing containers. |
| CN107259913A (en) * | 2017-06-13 | 2017-10-20 | 陈辉 | A kind of environmentally friendly health lotus leaf tableware and preparation method thereof |
| CN108214725A (en) * | 2017-12-01 | 2018-06-29 | 黄旭东 | A kind of preparation method of high-strength bamboo bamboo shoot shell packaging material |
| CN108437582A (en) * | 2018-05-03 | 2018-08-24 | 宁波铭哲快速成型科技有限公司 | A kind of pure plant leaf, skin cutlery box and preparation method thereof |
| CN112674448A (en) * | 2020-12-16 | 2021-04-20 | 江西中竹生物质科技有限公司 | Bamboo shoot shell fiber lunch box and manufacturing process thereof |
-
1998
- 1998-04-16 CN CN 98110780 patent/CN1231866A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2743079A1 (en) | 2011-10-11 | 2014-06-18 | Yves Boulard | Biodegradable food laminate from plant leaves in particular for producing containers. |
| CN103388290A (en) * | 2012-05-11 | 2013-11-13 | 广州华工环源模具有限公司 | Production system for paper pulp moulded products and production method utilizing production system |
| CN107259913A (en) * | 2017-06-13 | 2017-10-20 | 陈辉 | A kind of environmentally friendly health lotus leaf tableware and preparation method thereof |
| CN108214725A (en) * | 2017-12-01 | 2018-06-29 | 黄旭东 | A kind of preparation method of high-strength bamboo bamboo shoot shell packaging material |
| CN108437582A (en) * | 2018-05-03 | 2018-08-24 | 宁波铭哲快速成型科技有限公司 | A kind of pure plant leaf, skin cutlery box and preparation method thereof |
| CN112674448A (en) * | 2020-12-16 | 2021-04-20 | 江西中竹生物质科技有限公司 | Bamboo shoot shell fiber lunch box and manufacturing process thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |