CN1253121C - Disposable gymsum tableware - Google Patents
Disposable gymsum tableware Download PDFInfo
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- CN1253121C CN1253121C CN 200410023906 CN200410023906A CN1253121C CN 1253121 C CN1253121 C CN 1253121C CN 200410023906 CN200410023906 CN 200410023906 CN 200410023906 A CN200410023906 A CN 200410023906A CN 1253121 C CN1253121 C CN 1253121C
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Abstract
The present invention relates to disposable gypsum tableware which comprise chopsticks, a spoon, a food box, a cup, a bowl and a tray. The present invention is formed by principally using gypsum, water soluble adhesive as raw materials and in tableware moulding technology, and comprises the raw materials in the following weight percentage content: 60 to 97 % of gypsum and 3 to 40 % of water soluble binder. The water soluble binder is formed by combining one or two kinds of polyethylene alcohol resin, starch, gelatin, modified vinyl polyacetate and organosilicon adhesive. In addition, water which is 25-40 % the weight of gypsum powder and water soluble adhesive is added. The surface of the tableware has a water-proof layer. The gypsum chopsticks have the following raw materials: 4-15 % of polyvinyl alcohol resin, 3-7 % of starch, 3-7 % of talcum powder, 0-8 % of fiber, as well as water which is 30 % the weight of the previous raw materials. The gypsum chopsticks of the present invention don't bend or deform, have the advantages of comfortable hand feeling, practice and sanitation, and can be made into different grades, such as high grade, middle grade and low grade. The gypsum is the edible natural non-toxic raw material and has low manufacturing cost. When the disposable gypsum tableware is used and discarded, no pollution and damage on the environment can be resulted in.
Description
Technical field
The present invention relates to a kind of is the disposable gypsum tableware that main material production is made with gypsum, water-soluble binder.
Background technology
Disposable tableware mainly is chopsticks, meal spoon, cutlery box, cup, bowl, plate.Throwaway chopsticks are that people's health of going out is requisite in having meal, and present employed throwaway chopsticks mostly are to make of timber, bamboo etc., and its shortcoming is cross-section rate height, flexible type bending, uses feel poor.Wooden throwaway chopsticks use amount of wood huge, destroy natural ecological environment.
The patent No. is 00113724.7, denomination of invention is the patent of " disposable clean tebleware ", relate to a kind of disposable clean tebleware, this tableware contains silica gel by raw material land plaster, lime and/or white cement, triethanol ammonium and/or benzoic acid, emulsion rosin sizing agent and/or water and water is made through the tableware moulding process.Its claim 1 is that " a kind of disposable clean tebleware; it is characterized in that being made through the tableware moulding process by the raw material that comprises the following weight degree: land plaster 50～80%, lime and/or white cement 0.5～6%, triethanol ammonium and/or benzoic acid 0.5～6%, emulsion rosin sizing agent and/or water contain silica gel 0.5～6%, and its surplus is a water.”
Application number is 00105575.5, name is called the application for a patent for invention of " easily degradable snack container and preparation method thereof ", relates to a kind of disposable tableware, particularly a kind of easily degradable snack container and preparation method thereof.The constituent and the weight ratio of this cutlery box are: string 20～25%, edible plaster powder 30～45%, edible talcum powder 15～25%, adhesive 5～7%.
Application number is 01220167.7, name is called the utility model patent of " green environmental protection disposable is used chopsticks ", disclose a kind of green environmental protection disposable and used chopsticks, form by center framework, chopsticks phosphor bodies and face coat, center framework is for strengthening structural framework, be located at chopsticks phosphor bodies central part, the chopsticks phosphor bodies coats and is arranged at the center framework outside, and face coat is the chopsticks extexine, applies to be arranged at chopsticks phosphor bodies outer surface.Center framework is made by plant bodies of rod such as reed rod or wheat straws, and the chopsticks phosphor bodies is made up mutually and made by cement, gypsum, reed powder, starch, and face coat is that non-toxic plastic or environmental protection paint are made.It uses, and the back is recyclable to be used for feed or fertilizer and to meet environmental protection, and aboundresources, and processing back hardness is the same with timber, and feel is with wooden the same, has to meet environmental protection, crudy and reach the high effect of production efficiency well.
Application number is 02132495.6, name is called the application for a patent for invention of " producing powdered rice hulls goods preparation method ", invention relates to method for preparation of plant husk produce, be specially a kind of production rice husk goods preparation method, it is characterized in that weight percentages is: rice husk 65.6～68%, land plaster 12.3～13.4%, talcum powder 6.6～6.7%, water-proofing agent 4～4.1%, heat-resistant agent 1.2～3.2%, waterproofing agent 6.7～8.2%, with the spray sundries water is sprayed onto on the material of mixing back, makes square or circular goods through the high-temperature molding machine.Powdered rice hulls is 80～120 orders.Advantage of the present invention is twice laid, and preparation technology is simple, with low cost, and is free from environmental pollution, nonpoisonous and tasteless.The goods of the present invention's preparation are recyclable, act as a fuel and fertilizer, save a large amount of timber, can be made into chopsticks, ice lolly bar.
Summary of the invention
The purpose of this invention is to provide a kind of is primary raw material with the green material land plaster, adds adhesive then, with the disposable gypsum tableware of machinery batch process.Disposable gypsum tableware comprises: disposable gypsum chopsticks, disposable gypsum meal spoon, disposable gypsum cutlery box, disposable gypsum cup, disposable gypsum bowl, disposable gypsum plate.
The disposable gypsum tableware of the present invention is characterized in that: comprise the raw material of following weight percentage, be made through the tableware moulding process: land plaster 60～97%, and starch 3～40%, described starch is through the gelatinization PROCESS FOR TREATMENT; Add the water that accounts for land plaster and starch gross weight 25～40% in addition.
According to described disposable gypsum tableware, it is characterized in that: comprise the raw material of following weight percentage, be made through the tableware moulding process: land plaster 70～90%, starch 10～30%, described starch is through the gelatinization PROCESS FOR TREATMENT; Add the water that accounts for land plaster and starch gross weight 25～40% in addition.
According to described disposable gypsum tableware, it is characterized in that: the raw material that comprises following weight percentage: land plaster 71～84%, starch 3～7%, polyvinyl alcohol resin 4～15%, talcum powder 3～6% adds the water that accounts for above raw material gross weight 30% in addition.
According to described disposable gypsum tableware, it is characterized in that: design has the appearance waterproof coating on disposable gypsum tableware surface.
Disposable gypsum chopsticks in the disposable gypsum tableware of the present invention, have the following advantages: not flexural deformation, comfortable feel, practical health, pleasing, the pleasant aroma of color, can be made into square, cylindrical, hollow type, make the different class kinds of high, medium and low shelves, satisfy the needs of different hierarchies of consumption.Gypsum resource has huge reserves, and gypsum is the harmless raw material of edible Nantural non-toxic, and health safe in utilization is reliable.Manufacturing cost is cheap, and production process equipment is simple, is suitable for large-scale production in enormous quantities, and it is nontoxic that the back is abandoned in disposable use, can not pollute and destroy environment.
Disposable gypsum meal spoon in the disposable gypsum tableware of the present invention has the following advantages: the appearance of disposable gypsum spoon will thoroughly change the tradition that the tableware for food and drink spoon uses repeatedly, make people's the safer health of usefulness dinner party, its intensity is moderate, health easy to use, practicality aesthetic in appearance, cheap, be that mass consumption fully can be by being subjected to, a blank of disposable tableware for food and drink has been filled up in its invention.
The disposable gypsum chopsticks of the present invention, meal spoon, cutlery box, cup, bowl, plate mainly are raw material with the land plaster, also can replace the part land plaster with talcum powder.Water-soluble binder can select that polyvinyl alcohol resin, starch, gelatin, modification vinegar second are rare for use, in the silicone adhesive one or more are used in combination; Appearance waterproof coating material can be selected rare, third rare a kind of (also can) wherein of prior beverage jar inwall waterproof coating material, waterproofing agent of organosilicon, second for use.Food coloring, flavoring essence are looked product specification and are determined whether add.In the above proportioning, various materials are different with requirement of strength according to the product variety class of being produced in the manufacture process of product, do suitable adjustment.
The specific embodiment
One, disposable gypsum tableware raw material and weight percentage thereof
Embodiment table 1
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 |
| Land plaster | 60％ | 70％ | 80％ | 90％ |
| Water-soluble binder | 40％ | 30％ | 20％ | 10％ |
| In each prescription, add the water that accounts for raw material gross weight 25～40% in addition in addition | ||||
Two, disposable gypsum chopsticks raw material and weight percentage thereof
Embodiment table 2
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 | Prescription 5 |
| Land plaster | 71％ | 75％ | 80％ | 83％ | 84％ |
| Polyvinyl alcohol resin | 15％ | 10％ | 8％ | 6％ | 4％ |
| Starch | 3％ | 4％ | 5％ | 6％ | 7％ |
| Talcum powder | 3％ | 5％ | 7％ | 5％ | 5％ |
| Fiber | 8％ | 6％ | Do not have | Do not have | Do not have |
| In each prescription, add the water that accounts for raw material gross weight 30% in addition in addition | |||||
| Can add following additive as required and increase the appearance waterproof coating | |||||
| Pigment | In right amount | Do not have | In right amount | Do not have | Do not have |
| Spices | In right amount | Do not have | In right amount | Do not have | Do not have |
| The appearance waterproof coating | 0.2mm | 0.3mm | Do not have | Do not have | Do not have |
Annotate:
1, the appearance waterproof coating can use beverage can inside coating material in the table.
2, pigment, spices are selected food grade for use.
3, production top grade gypsum chopsticks prescription in the prescription 1, its manufactured goods, good toughness, safety and sanitation, water proofing property is strong.
4, belong to low-grade prescription in the prescription 4, the product strength of manufacturing and water proofing property can satisfy minimum instructions for use, and production cost is low.
5, disposable gypsum chopsticks are manufactured in the extruder processing of 5 kinds of suitable 90 ℃～110 ℃ of temperature of prescription in this table.
6, prescription 1, prescription 2 are used to produce expensive goods, the outer waterproof coating that uses.Prescription 3, prescription 4 are used to produce low grade products, can not add waterproofing agent.
Embodiment table 3
Annotate:
1, starch can be selected film phonograph strength height, ative starch that adhesion property is good for use, and common converted starch, the special-purpose converted starch of papermaking are as HY～AS composite starch, HY～MGD type slurry, HY～OS paper making additive starch etc.
2, fiber generally uses textile short velvet fiber also can use string, chemical fiber.
3, the appearance waterproof coating of prescription 1 manufactured goods can use brush, spraying and immersion method to make.
4, this table prescription is suitable for 90 ℃～110 ℃ disposable gypsum chopsticks of extruder processing.
Embodiment table 4
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 | Prescription 5 | |
| Land plaster | 76％ | 75％ | 78％ | 81％ | 82％ | |
| Silicone adhesive | 15％ | 10％ | 8％ | 6％ | 4％ | |
| Starch | Do not have | 5％ | 6％ | 8％ | 8％ | |
| Talcum powder | 3％ | 5％ | 8％ | 5％ | 6％ | |
| Fiber | 6％ | 5％ | Do not have | Do not have | Do not have | |
| In each prescription, add the water that accounts for raw material gross weight 30% in addition in addition | ||||||
| Can add following additive as required and increase the appearance waterproof coating | ||||||
| Pigment | In right amount | Do not have | In right amount | Do not have | Do not have | |
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 | Prescription 5 |
| Land plaster | 76％ | 75％ | 78％ | 81％ | 82％ |
| Modified polyvinyl acetate | 15％ | 10％ | 8％ | 6％ | 4％ |
| Starch | Do not have | 5％ | 6％ | 8％ | 8％ |
| Talcum powder | 3％ | 5％ | 8％ | 5％ | 6％ |
| Fiber | 6％ | 5％ | Do not have | Do not have | Do not have |
| In each prescription, add the water that accounts for raw material gross weight 30% in addition in addition | |||||
| Can add following additive as required and increase the appearance waterproof coating | |||||
| Pigment | In right amount | Do not have | In right amount | Do not have | Do not have |
| Spices | In right amount | Do not have | In right amount | Do not have | Do not have |
| The appearance waterproof coating | 0.3mm | 0.2mm | Do not have | Do not have | Do not have |
| Spices | In right amount | Do not have | In right amount | Do not have | Do not have |
| The appearance waterproof coating | 0.3mm | 0.2mm | Do not have | Do not have | Do not have |
Annotate:
1, use silicone adhesive than the product strength height that uses amylum adhesive to make, but silicone adhesive is than starch cost height.Adhesive is only used silicone adhesive and without amylum adhesive in the middle of the prescription 1, its intensity height, and quality is good, but the cost height.Suitably reduce the consumption of silicone adhesive in other prescriptions, increase the consumption of amylum adhesive, under the situation that guarantees minimum instructions for use, reduce cost.
2, using the fibrous raw material purpose is to improve the toughness of chopsticks, uses in the middle of high-grade chopsticks product.
Embodiment table 5
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 | |
| Land plaster | 68％ | 71％ | 78％ | 71％ | |
| Waterproofing agent of organosilicon (solid content 30%) | 8％ | 6％ | 5％ | 4％ | |
| Gelatinized starch (solid content 15%) | 9％ | 8％ | 7％ | 12％ | |
| Gelatin | 6％ | 5％ | 4％ | 8％ | |
| Talcum powder | 3％ | 5％ | 3％ | 5％ | |
| Fiber | 6％ | 5％ | 3％ | Do not have | |
| In each prescription, add the water that accounts for raw material gross weight 30% in addition in addition | |||||
| Can add following additive as required and increase the appearance waterproof coating | |||||
| Pigment | Do not have | In right amount | Do not have | In right amount | |
| Spices | Do not have | In right amount | Do not have | In right amount | |
Annotate:
1, gelatinized starch:
Starch is added clear water put into the gelatinization cylinder; stir; make the abundant imbibition of starch be made into 10%～30% suspension; select for use in the embodiment of the invention table solid content (purity) be 15% gelatinized starch (select for use solid content (purity) be 15% gelatinized starch just for the ease of calculating the raw material percentage composition, be not qualification to protection domain of the present invention).By 85～90 ℃ of steam heated, being incubated 15 minutes can finish again.
2, use waterproofing agent of organosilicon to replace the appearance waterproof coating, play waterproof action.
3,4 kinds of prescriptions can use extruder to process disposable gypsum chopsticks in this table, need not to heat.
4, waterproofing agent of organosilicon:
The waterproofing agent of organosilicon raw material generally adopts import food grade silicone oil, by emulsifying agent emulsification, adds materials (being food grade) such as stabilizing agent and reinforcing agent simultaneously and synthesizes.The waterproofing agent of organosilicon solid content is generally 8%～35%; it is that 30% (it is 30% that waterproofing agent of organosilicon is selected solid content for use that the present embodiment waterproofing agent of organosilicon is selected solid content for use;, be not qualification just) to protection domain of the present invention for the ease of calculating the raw material percentage composition.
More than the adhesive, the waterproofing agent that use in each embodiment form be the several of food grade water-soluble binder, waterproofing agent, be difficult to chat to the greatest extent.In concrete producting proportion, so long as can be effectively fused with gypsum, nonpoisonous and tasteless, effect can reach disposable gypsum chopsticks working strength and waterproof needs, but meets adhesive, all proportioning interpolation uses of waterproofing agent that food hygiene requires.
Three, disposable gypsum meal spoon raw material and weight percentage thereof
Embodiment table 6
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 | Prescription 5 |
| Land plaster | 76% | 78% | 79% | 83% | 85% |
| Polyvinyl alcohol water solution (solid content 50%) | 15% | 10% | 8% | 6% | 4% |
| Gelatinized starch (solid content 15%) | Do not have | 6% | 6% | 8% | 8% |
| Aqueous gelatin solution (solid content 30%) | 6% | 3% | 4% | 3% | 5% |
| Talcum powder | 3% | 3% | 3% | Do not have | Do not have |
| In each prescription, add the water (prescription 1 is 50%, and other is 60%) that accounts for raw material gross weight 50～60% in addition in addition. | |||||
| Can add following additive as required and increase the appearance waterproof coating | |||||
| Pigment | Do not have | In right amount | In right amount | Do not have | In right amount |
| Spices | Do not have | In right amount | In right amount | Do not have | In right amount |
| The appearance waterproof coating | Do not have | 0.3mm | Do not have | Do not have | Do not have |
Annotate:
1, gelatinized starch:
Starch is added clear water put into the gelatinization cylinder; stir; make the abundant imbibition of starch be made into 10%～30% suspension; selecting solid content (purity) in the embodiment of the invention table for use is that (selecting solid content (purity) for use is 15% gelatinized starch for 15% gelatinized starch;, be not qualification just) to protection domain of the present invention for the ease of calculating the raw material percentage composition.By 85～90 ℃ of steam heated, being incubated 15 minutes can finish again.
2, the polyvinyl alcohol aqueous solution:
The polyvinyl alcohol resin-oatmeal was added the clear water bubble more than 30 minutes; be made into 20%～80% mixed liquor; selecting solid content (purity) in the embodiment of the invention table for use is the 50% polyvinyl alcohol aqueous solution (selecting solid content (purity) for use is that the 50% polyvinyl alcohol aqueous solution is for the ease of calculating the raw material percentage composition, is not the qualification to protection domain of the present invention).Again by in 90～100 ℃ the steam heated still heating and stirred 15 minutes, the water white transparency polyvinyl alcohol aqueous solution.
3, land plaster is selected the high strength gypsum powder for use.
4, starch is selected converted starch for use, as: HY～MAD11 type, HY～OS paper making additive, the two converted starches of HY～NPS.
5, talcum powder, pigment, spices are food grade.
6, the disposable gypsum meal spoon of prescription 1 manufacturing, because of its PEF content height, water proofing property can satisfy instructions for use and not use the appearance waterproof coating.
7, prescription 2 uses the appearance waterproof coating, is the enhancement mode product.
8, the 5 kinds of disposable gypsum meal of prescription production spoons all adopt the making of grouting injection molded in the table.
Embodiment table 7
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 |
| Land plaster | 74％ | 74％ | 76％ | 80％ |
| Modification gathers the vinegar ethene aqueous solution (solid content 50%) | 12％ | 10％ | 10％ | 3％ |
| Gelatinized starch (solid content 15%) | 6％ | 6％ | 6％ | 8％ |
| Aqueous gelatin solution (solid content 30%) | 3％ | 5％ | 8％ | 6％ |
| Talcum powder | 5％ | 5％ | Do not have | 3％ |
| In each prescription, add the water that accounts for raw material gross weight 30% in addition in addition | ||||
| Can add following additive as required and increase the appearance waterproof coating | ||||
| Pigment | In right amount | Do not have | In right amount | Do not have |
| The appearance waterproof coating | 0.2mm | Do not have | Do not have | 0.2mm |
Annotate:
1, gelatinized starch:
Starch is added clear water put into the gelatinization cylinder; stir; make the abundant imbibition of starch be made into 10%～30% suspension; select for use in the embodiment of the invention table solid content (purity) be 15% gelatinized starch (select for use solid content (purity) be 15% gelatinized starch just for the ease of calculating the raw material percentage composition, be not qualification to protection domain of the present invention).By 85～90 ℃ of steam heated, being incubated 15 minutes can finish again.
2, the polyvinyl alcohol aqueous solution:
The polyvinyl alcohol resin-oatmeal was added the clear water bubble more than 30 minutes; be made into 20%～80% mixed liquor; selecting solid content (purity) in the embodiment of the invention table for use is the 50% polyvinyl alcohol aqueous solution (with solid content (purity) is that the 50% polyvinyl alcohol aqueous solution is for the ease of calculating the raw material percentage composition, is not the qualification to protection domain of the present invention).Again by in 90～100 ℃ the steam heated still heating and stirred 15 minutes, the water white transparency polyvinyl alcohol aqueous solution.
3, this table prescription is manufactured disposable gypsum meal spoon, is suitable for roller press processing.
Embodiment table 8
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 |
| Land plaster | 74％ | 74％ | 76％ | 80％ |
| Silicone adhesive | 12％ | 10％ | 10％ | 3％ |
| Gelatinized starch (solid content 15%) | 6％ | 6％ | 6％ | 8％ |
| Aqueous gelatin solution (solid content 30%) | 3％ | 5％ | 8％ | 6％ |
| Talcum powder | 5％ | 5％ | Do not have | 3％ |
| In each prescription, add the water that accounts for raw material gross weight 30% in addition in addition | ||||
| Can add following additive as required and increase the appearance waterproof coating | ||||
| Pigment | In right amount | Do not have | In right amount | Do not have |
| The appearance waterproof coating | 0.2mm | Do not have | Do not have | 0.2mm |
Annotate:
1, gelatinized starch:
Starch is added clear water put into the gelatinization cylinder; stir; make the abundant imbibition of starch be made into 10%～30% suspension; select for use in the embodiment of the invention table solid content (purity) be 15% gelatinized starch (select for use solid content (purity) be 15% gelatinized starch just for the ease of calculating the raw material percentage composition, be not qualification to protection domain of the present invention).By 85～90 ℃ of steam heated, being incubated 15 minutes can finish again.
2, use silicone adhesive than the product strength height that uses amylum adhesive to make, but silicone adhesive is than starch cost height.Suitably reduce the consumption of silicone adhesive in the prescription, increase the consumption of amylum adhesive, under the situation that guarantees minimum instructions for use, reduce cost.
3, the purpose of increase fibrous raw material is to improve the toughness of chopsticks, uses in the middle of high-grade chopsticks product.
Embodiment table 9
| Raw material (weight %) | Prescription 1 (the best) | Prescription 2 | Prescription 3 | Prescription 4 | Prescription 5 |
| Land plaster | 74% | 75% | 78% | 75% | 72% |
| Talcum powder | 3% | 5% | 5% | 8% | 10% |
| Waterproofing agent of organosilicon (solid content 30%) | 8% | 6% | 5% | 6% | 5% |
| Polyvinyl alcohol water solution (solid content 50%) | 10% | 8% | 6% | 5% | 5% |
| Gelatinized starch (solid content 15%) | 5% | 6% | 6% | 6% | 8% |
| In each prescription, add the water (prescription 1 is 56%, and prescription 2,3,4 is 60%, and prescription 5 is 70%) that accounts for raw material gross weight 56～70% in addition in addition. | |||||
| Can add following additive as required and add the appearance waterproof coating | |||||
| Pigment | In right amount | Do not have | Do not have | In right amount | Do not have |
| Spices | In right amount | Do not have | Do not have | In right amount | Do not have |
Annotate:
1, the polyvinyl alcohol aqueous solution:
The polyvinyl alcohol resin-oatmeal was added the clear water bubble more than 30 minutes; be made into 20%～80% mixed liquor; selecting solid content (purity) in the embodiment of the invention table for use is the 50% polyvinyl alcohol aqueous solution (selecting solid content (purity) for use is that the 50% polyvinyl alcohol aqueous solution is for the ease of calculating the raw material percentage composition, is not the qualification to protection domain of the present invention).Again by in 90～100 ℃ the steam heated still heating and stirred 15 minutes, the water white transparency polyvinyl alcohol aqueous solution.
2, gelatinized starch:
Starch is added clear water put into the gelatinization cylinder; stir; make the abundant imbibition of starch be made into 10%～30% suspension; select for use in the embodiment of the invention table solid content (purity) be 15% gelatinized starch (select for use solid content (purity) be 15% gelatinized starch just for the ease of calculating the raw material percentage composition, be not qualification to protection domain of the present invention).By 85～90 ℃ of steam heated, being incubated 15 minutes can finish again.
3, waterproofing agent of organosilicon:
The waterproofing agent of organosilicon raw material generally adopts import food grade silicone oil, by emulsifying agent emulsification, adds materials (being food grade) such as stabilizing agent and reinforcing agent simultaneously and synthesizes.The waterproofing agent of organosilicon solid content is generally 8%～35%, and present embodiment waterproofing agent of organosilicon solid content is selected 30% (the waterproofing agent of organosilicon solid content selects 30% for use, for the ease of calculating the raw material percentage composition, is not the qualification to protection domain of the present invention just) for use.
4,5 kinds of prescriptions all do not re-use the appearance waterproof coating because of adding waterproofing agent of organosilicon in this table.
5, the gypsum meal spoon advantage of prescription 1 production is intensity height, good waterproof performance.
6, the gypsum meal spoon of prescription 2 productions does not use pigment, spices, and outward appearance is pure white plain.
7, the gypsum meal spoon of prescription 4 productions is because of having added pigment, spices, pleasing, the pleasant aroma of color.
8, this table prescription is suitable for the slip casting mould and produces disposable gypsum meal spoon.
Four, the disposable gypsum tableware of the present invention manufacturing process:
(1) disposable gypsum chopsticks manufacture method is as follows:
1, land plaster, polyvinyl alcohol resin, starch, are mixed through mixer by a certain amount of proportioning by institute's production kind class.
2, add food coloring, flavoring essence in the water, stir in the land plaster that adding mixes.
3, raw material is dropped into extruder and extrude the cylindrical or cubic bar shaped blank of diameter 5～7mm through HTHP;
4, blank is sent into drying chamber or the oven dry kiln drying of learning 40～90 ℃.
5, grinding tapering 30～60 centimetre lengths of oven dry back column type blank.One of square blank grinds away 60～120 centimetres of arris length, promptly finishes.Because of heating through extruder and twice high temperature of oven dry, therefore the actual sterilization of having finished can directly pack.
(2) disposable gypsum meal spoon manufacture method:
1, starch gelatinization technology in the disposable gypsum meal spoon raw material:
Starch is added clear water put into the gelatinization cylinder; stir; make the abundant imbibition of starch be made into 10%～30% suspension; selecting solid content (purity) in the embodiment of the invention table for use is that (selecting solid content (purity) for use is 15% gelatinized starch for 15% gelatinized starch;, be not qualification just) to protection domain of the present invention for the ease of calculating the raw material percentage composition.By 85～90 ℃ of steam heated, being incubated 15 minutes can finish again.
2, polyvinyl alcohol aqueous solution system method in the disposable gypsum spoon raw material:
The polyvinyl alcohol resin-oatmeal was added the clear water bubble more than 30 minutes; be made into 20%～80% mixed liquor; selecting solid content (purity) in the embodiment of the invention table for use is the 50% polyvinyl alcohol aqueous solution (selecting solid content (purity) for use is that the 50% polyvinyl alcohol aqueous solution is for the ease of calculating the raw material percentage composition, is not the qualification to protection domain of the present invention).Again by in 90～100 ℃ the steam heated still heating and stirred 15 minutes, the water white transparency polyvinyl alcohol aqueous solution.
3, land plaster is added in the polyvinyl alcohol resin aqueous solution, can add flavoring essence, pigment stirs into pasty state through mixer.
4, slurry is injected gypsum mold took out in 1～60 minute.
5, blank is sent into 40～90 degree drying chambers or oven dry kiln drying, can be through being packaged into finished product.
(3) disposable gypsum tableware water-proofing treatment and production technology:
1, directly mixes the raw material waterproof.The waterproof raw material generally adopts import food grade silicone oil, by emulsifying agent emulsification, adds materials (being food grade) such as stabilizing agent and reinforcing agent simultaneously and synthesizes.The waterproofing agent of organosilicon solid content is generally 8%～35%, and present embodiment waterproofing agent of organosilicon solid content is selected 30% (the waterproofing agent of organosilicon solid content selects 30% for use just for the ease of calculating the raw material percentage composition, is not the qualification to protection domain of the present invention) for use.That this waterproofing agent has is nontoxic, harmless, tasteless, volume is few, can strengthen and keep characteristics such as gypsum self whiteness, with the gypsum slurry of its modulation excellent waterproofness and adhesive property is arranged.Select different waterproofing agent incorporations according to the different class needs of product, be generally 5% of amount of gypsum, in pulping process, directly add with the water mixing.
2, appearance waterproof coating.With 1 part of waterproofing agent mix 10 parts of water rare after, dried disposable gypsum is immersed in the waterproofing agent after the dilution, take out then and dry or dry.
The manufacturing primary raw material of disposable gypsum chopsticks and disposable gypsum spoon is a land plaster.Select for use and the consumption of adhesive kind how much be according to institute's production kind, class is different with requirement of strength and select the adhesive and the consumption of different cultivars.Kind class difference has also determined to use the kind of waterproofing agent and whether add food coloring, essence.
Claims (3)
1, a kind of disposable gypsum tableware is characterized in that: comprise the raw material of following weight percentage, be made through the tableware moulding process: land plaster 60～97%, and starch 3～40%, described starch is through the gelatinization PROCESS FOR TREATMENT; Add the water that accounts for land plaster and starch gross weight 25～40% in addition.
2, disposable gypsum tableware according to claim 1 is characterized in that: comprise the raw material of following weight percentage, be made through the tableware moulding process: land plaster 70～90%, and starch 10～30%, described starch is through the gelatinization PROCESS FOR TREATMENT; Add the water that accounts for land plaster and starch gross weight 25～40% in addition.
3, disposable gypsum tableware according to claim 1 and 2 is characterized in that: design has the appearance waterproof coating on disposable gypsum tableware surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023906 CN1253121C (en) | 2004-04-10 | 2004-04-10 | Disposable gymsum tableware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410023906 CN1253121C (en) | 2004-04-10 | 2004-04-10 | Disposable gymsum tableware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1561887A CN1561887A (en) | 2005-01-12 |
| CN1253121C true CN1253121C (en) | 2006-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410023906 Expired - Fee Related CN1253121C (en) | 2004-04-10 | 2004-04-10 | Disposable gymsum tableware |
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| CN (1) | CN1253121C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101869421A (en) * | 2009-04-24 | 2010-10-27 | 怀化市玉叶农业环保科技发展有限公司 | Low-cost, disposable and eatable tableware and manufacture method thereof |
| CN110183740A (en) * | 2019-06-21 | 2019-08-30 | 广东工业大学 | A kind of preparation method of novel jewellery material |
| CN112194445B (en) * | 2020-09-27 | 2022-05-24 | 荆门千年健医疗保健科技有限公司 | Gypsum tableware and preparation method thereof |
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| CN1561887A (en) | 2005-01-12 |
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