CN1150845C - All biological degradation type disposable tableware, its production technology and special equipment - Google Patents

Abstract

The present invention relates to full-biological degradation type disposable tableware, a production technology thereof and a special device thereof. The tableware is made of a sheet material made of a biological degradation material by machine forming, and the sheet material comprises the following combined components: 80 to 120 meshes of rice hull powder, binding agent protein gelatin, starch and poly-hydrocarbyl butyric ester, wherein the rice hull powder is the main component. The auxiliary materials are added with water for agitation and mixture, and the tableware is made by the procedures of rolling, forming, shaping, etc. Procedure 1 comprises: pulverization: after iron and stone blocks are removed, rice hulls are pulverized to 80 to 120 meshes by a pulverizer; the production technology comprises: pulverization, material preparation, agitation, rolling for forming sheet materials, forming, shaping, surface treatment, ultraviolet disinfection and packaging.

Description

All biological degradation type disposable tableware and production technology thereof

Technical field

The present invention relates to a kind of all biological degradation type disposable tableware, the present invention also relates to the production technology of this all biological degradation type disposable tableware simultaneously.

Background technology

Awakening along with environmental consciousness, the chemical synthetic material of some recovery that can not be degraded will be eliminated or not allow and use, this is comprising the disposable tableware of being made by the PS material (lunch box, bowl, dish etc.) is arranged, various places government has issued the regulation of the disposable tableware of restriction use PS material, with ' white pollution ' avoiding being on the rise, and As time goes on, the tableware of this material will be used by total ban.Because disposable tableware has convenient, healthy advantage, adapt to modernized fast pace life, also required for what live, ban use of and bring inconvenience for people's work and life.Therefore, press at present and find a kind of degradation material that can substituting PS to make disposable tableware and provide people to use, this material should be able to satisfy: (1) at nature through degrading fully after a while; (2) can be molded into various tablewares; (3) meet the sanitary tableware standard; (4) have suitable hardness and certain anti-colliding with property etc.

The inventor promptly is according to the demand, through a large amount of test and study, works out all biological degradation type disposable tableware of the present invention, its production technology and special equipment finally, has filled up the technological gap in present this field.

Content of the present invention

The purpose of this invention is to provide a kind of all biological degradation type disposable tableware, make and to satisfy the demand of people, can avoid ' white pollution ' again, the protection human ecological environment disposable tableware.

Another object of the present invention provides the manufacturing technique of above-mentioned all biological degradation type disposable tableware.

A further object of the present invention provides the special equipment of producing above-mentioned all biological degradation type disposable tableware.

The object of the present invention is achieved like this:

A kind of all biological degradation type disposable tableware, this tableware is made by the sheet material machine-shaping of making for Biodegradable material, it is characterized in that the composition of this sheet material is as follows:

Main Ingredients and Appearance 80～120 purpose powdered rice hulls;

Adhesive albumen gelatin;

Starch and poly-alkyl butyrate;

Above-mentioned batching adds water and mixes, and makes tableware through roll-in, moulding, fixating shape step again.

The proportioning of above-mentioned each component is: powdered rice hulls 70 weight %～90 weight %;

Albumen gelatin 7 weight %～20 weight %;

Starch and poly-alkyl butyrate surplus.

A kind of proportioning of selectable said components is 88 parts of compositions, 80～120 purpose powdered rice hulls; 9 parts of adhesive animal protein gelatin; 2 parts of starch and 1 part of poly-alkyl butyrate.

The technology of making above-mentioned all biological degradation type disposable tableware is to comprise the steps:

Step 1: pulverize, use pulverizer will be to be broken to 80 to 120 orders through the powdered rice hulls of removing behind iron and the stone;

Step 2: batching mixes the powdered rice hulls after weighing and animal protein gelatin, starch and poly-alkyl butyrate;

Step 3: stir: after spray water, go into mixer, various batchings are stirred into dough or mud shape;

Step 4: be rolled into sheet material: the dough shape raw material that will prepare material is pressed into sheet material through roll squeezer, send the assembly room;

Step 5: moulding: use hydraulic press, utilize formpiston and former mould that sheet material is pressed into difformity tableware wet hair base;

Step 6: typing: use the chain type dryer with the oven dry of tableware wet hair base, typing, and reject the tableware blank that distortion is arranged;

Step 7: surface treatment: with the surperficial overcoat that sprays the thick 0.1～0.3mm of last layer of the tableware blank of typing, overcoat adopts the clarke emulsion paint of water-soluble non-toxic;

Step 8: disinfection by ultraviolet light: use conventional ultraviolet radiation disinfection;

Step 9: packing.

The special equipment pulverizer of all biological degradation type disposable tableware of the present invention, mixer compressing tablet and former, surface disposal facility, wherein, pulverizer is no screen mesh type micronizer, 90KW, 1T/h, compressing tablet and former are to adopt the roll-type flattener to become stamping machine with hydraulic pressure, surface treatment machinery adopts the spray machine with Multi-direction spray head, it is the food machinery of improved, because food is to be sprayed on the plane product for the biscuit oil-injection machine, and spray paint on tableware because of certain degree of depth is arranged, so requirement has a plurality of and the energy go to action could be sprayed at aqueous lacquer bowl wall equably when spraying paint and, make the quality of product reach requirement at bowl the end.

Adopt all biological degradation type disposable tableware product that the present invention produced, through standard substance institute of State Environmental Protection Administration, National Environmental test center, unit testings such as China the prevention academy of sciences, Institute of Micro-biology of the Chinese Academy of Sciences and Ministry of Railways safety detection center, its product quality can compare favourably with plastic product, but can degrade fully for microorganism, main test case is described as follows:

One, security meets GB GB/T17219-1998 " producing drinking water transmission ﹠ distribution wetting system and protective materials safety evaluatio standard " through acute toxicity, teratogenesis, mutagenicity.

Persticide residue meets GB5127-85 " DDVP in the food, Rogor, malathion, parathion allow the residual quantity standard " and GB2763-81 " BHC, dichlorodiphenyl trichloroethane residual quantity standard in the food such as grain vegetables ".

Content of beary metal meets GB14935-94 " in the food chromium limit the quantity of sanitary standard ", GB2762-81 " mercury allowance sanitary standard in the food ", GB14935-94 " in the food lead limit the quantity of sanitary standard ".

Arsenic and benzene (α) pyrene meets GB4810-94 " in the food arsenic limit the quantity of sanitary standard ", GB7104-94 " benzene in the food (α) pyrene limit the quantity of sanitary standard ".

Two, wholesomeness

Meet: GB9683-89 food body paper sanitary standard, GB9685-9696-88 " eight state health standards such as food polyethylene, polypropylene, polystyrene moulding product ".

Three, serviceability

A high position leaves, bears a heavy burden to test and meets State Environmental Protection Administration's " specification requirement of string dishware environmental labelling product "

Four, biodegradable

Use 8 kinds of moulds and the test of various bacteria biodegrade all to obtain in one month, to reach high-fall effect of separating with reference to U.S. material association criterion method ASTM D5247-92 and international standard ISO 846-1997 design.

Above-mentioned detection, result of the test explanation; all biological degradation type disposable tableware of the present invention; have compliance with environmental protection requirements, the safe and sanitary index can be satisfied the demand; can be used as the substitute of existing PS disposable tableware; because employed main raw material is a rice husk; wide material sources; and be discarded object originally; now be used once more; therefore help properly making full use of more to earth resource; no matter being in the protection or the utilization again to limited resources of living environment, all is very favourable innovation and creation.

Further describe the present invention below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a process chart of the present invention.

Specific embodiments of the invention

In the compositing formula of biological degradation type disposable tableware of the present invention, the percentage composition of various batchings is different by the shape of moulding product, for example bowl-shape tableware because of moulding than plate-like tableware difficulty, used bonding agent ratio is higher than the latter, but the ratio of powdered rice hulls should be in 70～90% scopes.

Referring to shown in Figure 1, the technology of making above-mentioned all biological degradation type disposable tableware is to comprise the steps:

Step 1: pulverize, the powdered rice hulls that uses pulverizer will be to remove behind abrasive grit and the stone through magnetic screening is broken to 80 to 120 orders, and the purpose that impurity such as abrasive grit, stone are removed in magnetic screening is protection pulverizer (pulverizing rotating speed up to 2900 rev/mins).Pulverizing can also can once enter raw material the powder that one step of micronizer is broken to powdered rice hulls required order number through going ultramicro grinding (80～120 order) after the thick level pulverizing (60 order) again.

Step 2: batching mixes the powdered rice hulls after weighing and animal protein gelatin (as binding agent), starch (making finished product tool fineness) and poly-alkyl butyrate (enhancing cementitiousness);

Step 3: stir: after spray water, go into mixer, various batchings are stirred into dough or the mud shape is standby;

Step 4: be rolled into sheet material: dough shape (or the mud shape) raw material that will prepare material is pressed into certain thickness sheet material through roll squeezer, send the assembly room standby with conveyer belt;

Step 5: moulding: use hydraulic press, utilize formpiston and former mould that sheet material is pressed into difform tableware wet hair base;

Step 6: typing: use chain type dryer (as having the machine that the oven dry instant noodles use now) that tableware wet hair base is dried about 150 ℃ ± 20 ℃, typing, and reject the tableware blank that is out of shape;

Step 7: surface treatment: the overcoat that the tableware blank surface of typing is sprayed the thick about 0.1～0.3mm of last layer, overcoat adopts the clarke emulsion paint of water-soluble non-toxic, this is painted behind the film more securely attached on the blank, but can slowly be dissolved in water after soaking 10 hours;

Step 8: disinfection by ultraviolet light: use conventional ultraviolet radiation disinfection;

Step 9: packing, the tableware that internal layer had been sterilized with clean packaged by plastic film, meal layer carton.

Embodiment one: by 88 parts of following prescription powdered rice hulls of the present invention, 2 parts of starch, 9 parts, 1 part poly-alkyl butyrate of animal protein gelatin mix, and make disposable dish shape tableware by above-mentioned technology.

Embodiment two: by 78 parts of following prescription powdered rice hulls of the present invention, 3 parts of starch, 18 parts, 1 part poly-alkyl butyrate of animal protein gelatin mix, and make disposable bowl-shape tableware by above-mentioned technology.

Embodiment three: by 85 parts of following prescription powdered rice hulls of the present invention, 5 parts of starch, 9 parts, 1 part poly-alkyl butyrate of animal protein gelatin mix, and make disposable plate-like tableware by above-mentioned technology.

Claims (3)

1, a kind of all biological degradation type disposable tableware, the sheet material machine-shaping that this tableware is made by Biodegradable material is made, and it is characterized in that the composition of this sheet material is as follows:

88 parts of composition 80～120 purpose powdered rice hulls;

9 parts of adhesive animal protein gelatin;

2 parts of starch and 1 part of poly-alkyl butyrate;

Above-mentioned batching adds water and mixes, and makes tableware through roll-in, moulding, fixating shape step again.

2, make the technology of the described all biological degradation type disposable tableware of claim 1, it is characterized in that comprising the steps:

Step 1: pulverize, use pulverizer will be to be broken to 80 to 120 orders through the powdered rice hulls of removing behind iron and the stone, pulverizing rotating speed is 2900 rev/mins, pulverizes through the thick level of 60 orders earlier, pulverizes through ultra micro 80-120 order again;

Step 2: batching mixes the powdered rice hulls after weighing and animal protein gelatin, starch and poly-alkyl butyrate;

Step 3: stir: after spray water, go into mixer, various batchings are stirred into dough or mud shape;

Step 4: be rolled into sheet material: the dough shape raw material that will prepare material is pressed into sheet material through roll squeezer, send the assembly room;

Step 5: moulding: use hydraulic press, utilize formpiston and former mould that sheet material is pressed into difformity tableware wet hair base;

Step 6: typing: use the chain type dryer with the oven dry of tableware wet hair base, typing, and reject the tableware blank that distortion is arranged;

Step 7: surface treatment: with the surperficial overcoat that sprays the thick 0.1～0.3mm of last layer of the tableware blank of typing, overcoat adopts the clarke emulsion paint of water-soluble non-toxic;

Step 8: disinfection by ultraviolet light: use conventional ultraviolet radiation disinfection;

Step 9: packing.

3, technology according to claim 2 is characterized in that the blank bake out temperature is 150 ℃ ± 20 ℃ in the step 6.

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