CN1268283A

CN1268283A - Plant fibre pot for seedling and method for mfg. same

Info

Publication number: CN1268283A
Application number: CN 99113554
Authority: CN
Inventors: 苏庆轶; 黄剑香
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-25
Filing date: 1999-03-25
Publication date: 2000-10-04

Abstract

The present invention relates to a plant fiber seedling bowl and its making method. Said bowl is made of (by wt. portion) plant fiber (100), binder (50-60) and mold-release agent (7.5-8); the plant fiber is at least one kind of straw, bran, reed, cogongrass, bamboo and wood, the binder may be grain starch, and the mold-release agent may be paraffin wax or rapeseed oil, and they pass through grinding mixing, moistening and mold pressing to form into the product. The advantages include widely spread raw materials, little water used, low cost, easy to release from mold, and the bowl body can degrade by itself as organic fertilizer for soil.

Description

Plant fibre pot for seedling and manufacture method thereof

The present invention relates to plant fibre pot for seedling and manufacture method thereof.

In the prior art, related to the present invention have Chinese patent 95111976.1 ublic specification of application, with the vegetable fiber pulp plate is primary raw material, be equipped with modifier and handle, make flowerpot through vacuum suction net contour forming, not only price is higher relatively for the straw pulp that this technology adopts, and in the straw pulp bleaching process, can produce a large amount of waste water, serious environment pollution is the industry of the strict control development of country, and the straw pulp source is restricted; Also have, the paper mould complex manufacturing of this technology also will expend a large amount of water (can be called the paper pulp method), is subjected to the water resource restriction, and product cost also must be higher; Used filler talcum powder, precipitating reagent aluminum sulfate weakens alms bowl body air-and water-permeable performance in the prescription, is unfavorable for plant strain growth; Therefore, this technology is difficult to widely use.Another relevant Chinese patent 91108365.0 and improved thereafter Chinese patent application 98111945.X, adopt raw material capable of using as feed (stalk, corncob, rice bran etc.) to pulverize back and adhesive, filler, dispersant mixing, tableware and packaging for foodstuff are made in mold pressing, water consumption less (can be called dry method), technology is simple, but, this scheme lacks releasing agent, filler in the prescription such as talcum powder, calcium carbonate, clay and adhesive such as flour, rosin, animal blood do not have good stripping result, realize the suitability for industrialized production difficulty; Identical with Chinese patent application 95111976.1, the filler talcum powder in the prescription, calcium carbonate, clay can make alms bowl body air-and water-permeable performance weaken equally, influence plant strain growth, and therefore, this technology is not suitable for industrialization and makes plant fibre pot for seedling.

The objective of the invention is to utilize vegetable fiber to be base-material, adopt better simply energy to realize that industrialized process produce a kind of plant fibre pot for seedling.

The object of the present invention is achieved like this: plant fibre pot for seedling is characterized in that alms bowl body material is made up of vegetable fiber, binding agent and releasing agent.Wherein: the raw material of vegetable fiber can be selected at least a in agricultural crop straw, cavings, reed, cogongrass, the bamboo and wood for use, considers the factor of environmental protection, general first-selected herbaceous plant wherein, and as for bamboo and wood, the old material of available recovery; Binding agent can be selected cereal starch for use, is good with the strong flour of adhesive property; Releasing agent is selected paraffin or rape seed oil for use; The weight proportion of each component is: vegetable fiber: binding agent: releasing agent=100: 50-60: 7.5-8.

The manufacture method of above-mentioned plant fibre pot for seedling is as follows:

1. pulverize: vegetable fiber is crushed to the 30-40 order, and it is too short to pulverize the meticulous fiber that makes, and product intensity weakens, and slightly then fiber is oversize excessively, and the finished product interior is loose, the surface is crude; Releasing agent is crushed to the 10-20 order, particle detailed rules and regulations processing difficulties, particle is skewness then slightly, influences the demoulding;

2. mix: with vegetable fiber powder, binding agent, releasing agent by weight ratio 100: put into agitator after 50-60: 7.5-8 mixes and stir;

3. humidification: add the water of compound gross weight 30-35% in whipping process, make compound somewhat moistening, but still keep the loose powder shape, water is difficult for mixing thoroughly at least, and water forms the semi-fluid shape at most, and unfavorable press forming increases the difficulty of anhydrating;

4. die forming: the above-mentioned compound that stirs is added in the mould, the heating pressurization, temperature is controlled at the 150-160 degree, and pressure is not less than 2.5Mpa, and pressure there is no benefit to product too greatly, increases cost on the contrary; Press time is one minute, and the binding agent slaking plays sticking, water evaporates, takes out finished product, and temperature and press time are the keys that influence is shaped, the low time weak point of temperature, binding agent can not slaking rise sticking, water evaporation quantity is few, can not be shaped; The high time of temperature is long, and binding agent can coking lose viscosity.

Advantage applies of the present invention in: compare with the paper pulp method, raw material sources are extensive, and water is few, saved the used energy that dewaters, and cost of manufacture is low; Compare with dry method, have releasing agent to work, the demoulding is easy, and the make efficiency height helps suitability for industrialized production; Removed materials such as talcum powder as filler, calcium carbonate, clay in the prescription, the alms bowl body air-and water-permeable performance of making is good, helps plant strain growth; After the band alms bowl was transplanted to the land for growing field crops, alms bowl was known from experience the organic manure that decomposes increase soil voluntarily, also can eliminate simultaneously by burning the atmospheric pollution that agricultural crop straw caused.

Describe the present invention in detail below in conjunction with embodiment.

Embodiment 1, a kind of plant fibre pot for seedling, and the raw material preparation: straw 20kg is ground into 30 purpose powder; Paraffin 1.5kg is ground into 10 purpose powder; Flour 10kg; Above-mentioned straw powder, paraffin, flour are inserted agitator to be mixed, the water that slowly adds 9.5kg during stirring after stirring, is got the 250g compound at every turn and is injected die cavity heating pressurization, temperature fixes on 150 degree, pressure fixes on 2.8Mpa, keeps the compacting of 1 fen clock time, and the flour slaking rises sticking, water evaporates, finished product is taken out in die sinking, so repeats, and can make 160 of 450ml pot for growing seedlings.

Embodiment 2, a kind of plant fibre pot for seedling, and the raw material preparation: cogongrass 10kg adds cavings 10kg, is ground into 40 purpose powder; Paraffin 1.6kg is ground into 20 purpose powder; Flour 12kg; Above-mentioned cogongrass cavings mixed powder, paraffin, flour are inserted agitator to be mixed, the water that slowly adds 11kg during stirring after stirring, is got the 250g compound at every turn and is injected die cavity heating pressurization, temperature fixes on 160 degree, pressure fixes on 2.5Mpa, keeps the compacting of 1 fen clock time, and the flour slaking rises sticking, water evaporates, finished product is taken out in die sinking, so repeats, and can make 160 of 450ml pot for growing seedlings.

Among the above embodiment, substitute paraffin as releasing agent with rape seed oil, set of dispense by both having can be made into pot for growing seedlings with quadrat method, also can be made into disposable tableware and packaging for foodstuff than constant.

Claims

1. plant fibre pot for seedling is characterized in that alms bowl body material is made up of vegetable fiber, binding agent and releasing agent.

2. plant fibre pot for seedling according to claim 1 is characterized in that:

2.1 the weight proportion of its component is: vegetable fiber: binding agent: releasing agent=100: 50-60: 7.5-8;

2.2 vegetable fiber wherein can be selected at least a in agricultural crop straw, cavings, reed, cogongrass, the bamboo and wood for use;

2.3 binding agent wherein is a flour;

2.4 releasing agent wherein is a paraffin.

3. according to the manufacture method of the described plant fibre pot for seedling of claim 1, it is characterized in that:

3.1 pulverize: vegetable fiber is crushed to the 30-40 order, releasing agent is crushed to the 10-20 order;

3.2 mix: with vegetable fiber powder, binding agent, releasing agent by weight ratio 100: 50-60: 7.5-8 stirs after mixing;

3.3 humidification: the water that in whipping process, adds compound gross weight 30-35%;

3.4 die forming: the above-mentioned compound that stirs is added in the mould, the heating pressurization, temperature is controlled at the 150-160 degree, and pressure is not less than 2.5Mpa, and the press time is one minute, takes out finished product.