DE1214034B - Method of embedding the underground parts of plants - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

AOIg

German class: 45 f- 23/04

Number: 1214 034

File number: B 72429III / 45 f

Filing date: June 26, 1963

Opening day: April 7, 1966

Many plants, such as trees, bushes and perennials, are transplanted with a "root ball". Here it depends on the soil adhering to the roots by wrapping in cloths or Keep bags from falling off. The root ball may have to last a few months be prepared beforehand by piercing several times. Nevertheless, the Hardly avoid root ball during long transport and frequent reloading. Plants with one Root balls are relatively heavy and therefore cause high transport costs. Garden centers and tree nurseries also lose considerable amounts as a result of this process valuable mother earth.

Another disadvantage of this method is that pests in the soil, like nematodes, are transmitted from one place to another. Because of this, the shipping overseas only possible without soil or root ball. But this means an increased shipping risk, because the plants dry out very easily during transport. The dispatch with root ball also has the disadvantage that plants to be shipped and sold are not prepared for a long time unless the root ball is well covered with peat.

It was therefore proposed to wrap the roots of plants to be shipped in plastic foams, z. B. urea-formaldehyde foam to embed. These plastic foams have a excellent water storage capacity, so that plants whose roots are embedded in them, can be shipped without fear of the plants drying out. The foams adhere very well to the root system. They are much lighter than earth and can be used without damage the root system by breaking or kinking roots applied to this, z. B. be sprayed on. Such damage is also common when the roots are embedded in Never avoid peat entirely. However, embedding the roots in plastic foams often does Damage to plants due to chemical components of the plastic foams result, z. B. with urea resin foams, by urea, formaldehyde and methylol compounds from them.

It has now been found that a particularly advantageous method of embedding the subterranean parts of plants such as trees, shrubs and perennials is to subject the subterranean parts of the plants to a hardenable method of embedding the subterranean prior to embedding
Parts of plants

Applicant:

Aniline & Soda Factory in Baden

Aktiengesellschaft, Ludwigshafen / Rhein

Named as inventor:

Johann Lenz,

Dr. Hans Scheuermann, Ludwigshafen / Rhine;

Dipl.-Agr. Dr. Johann Jung, Limburgerhof;

Graduate gardener Dr. Hannelore Will,

Ludwigshafen / Rhine

Plastic foam coated with a film-forming, formaldehyde-binding organic substance.

As film-forming, preferably formaldehyde-binding organic substances are, for. B. in water dissolved or suspended natural or synthetic substances, such as animal glue, casein, gelatinized Starch, cellulose ethers, polyacrylic acid salts, copolymers of acrylic acid salts with Acrylamide, polyvinylpyrrolidone or polyvinyl alcohol, d. H. preferably those film-forming high molecular weight substances, the imine, amine or Carry hydroxyl groups.

The method according to the invention is e.g. B. carried out so that you can remove the roots after loosening Carefully freed from the adhering earth from the soil, then into the solutions or Immersed suspensions of the film-forming substances, allowed to dry and then with the plastic foam enveloped at room or outside temperature, taking care that the roots are complete be embedded.

One advantage of the new method is e.g. B. in that formaldehyde, which is generally used from the Aminoplast foams can be split off in small amounts through the film coating the roots cannot damage the plant and cannot hinder growth. The plants, the roots of which are coated with a film according to the invention and embedded in plastic foam, can be sent without further ado.

For planting, they are set in the usual way in settling pits, not rotting Foils or network that may contain the

609 557/80

Cover the root ball, expediently removed beforehand, and cover with earth.

The parts and percentages given in the following example are units of weight. Parts by weight relate to parts of space v / ie kilograms to liters.

example

A sapling is detached from the ground, and its roots are largely freed from adhering earth by tapping off. The roots are immersed in a 7% aqueous paste of potato starch, a 10% aqueous, lukewarm hide glue solution, a 10% aqueous polyvinyl "alcohol solution (average molecular weight of the polyvinyl alcohol about 150,000) or a 10% aqueous solution of one A copolymer of acrylic acid sodium and acrylamide (molar ratio 1: 1) and allows it ^{to air dry for 1} 1/2 to 1 hour.

5200 parts by volume of an approximately 30% strength aqueous urea-formaldehyde solution with a pH of 7.5 (molar ratio of urea to formaldehyde such as 1: 2.05) are heated to the boil. The solution is then adjusted to pH 4.5 with dilute aqueous formic acid and condensed at low boiling until a sample of the solution just becomes cloudy when diluted with four times the amount of water at 20 ° C. After neutralization with concentrated aqueous sodium hydroxide solution, it is evaporated in vacuo to a dry resin content of about 70%.
. 100 parts of the syrupy resin solution thus obtained are mixed with 31.5 parts of urea and heated to 60 ° C. for 30 minutes. It is then cooled to room temperature and diluted with water to a resin content of about 38%.

The processing of the 38% resin solution on foam takes place under the following conditions:

In a fast-running agitator with a capacity of 63.6 parts per volume, 2.1 parts per minute become one Mixture of 3.15 parts by volume of water, 0.207 parts of resorcinol, 0.88 parts of a 60% strength aqueous solution of sodium naphthalenesulfonate and 43.4 parts by volume of 0.25% strength aqueous nitric acid sprayed in and stirred into a fine-pored foam. At the same time, 1.92 parts of space become one per minute Mixture of 31.8 parts by volume of the 38% strength resin solution described above and 7.9 parts by volume Water injected. In addition, 50 to 70 parts of air are blown into the agitator per minute.

ίο Leave the plastic foams produced in this way by a movable piece of pipe, which is attached to the floor, the agitator and are around the Roots of the sapling, which is in a plastic bucket, led. One makes sure that the Foam also penetrates between the roots. After a short time the tree can be foamed with the Root system can be taken out of the bucket. In some cases it is also beneficial the bucket with a thin fabric made of fibers or perforated plastic sheets or to lay out paper and only then to embed the roots in the foam. In this way of working the fabric or the films are expediently immediately after foaming above the Root system tied.

Nutrient salts or water-retaining compounds can also be added to the foam, usually before foaming. how residues from sugar production are added.

Claims (1)

Claim: Method of embedding the underground parts of plants, such as trees, shrubs and Perennials, where you can see the underground parts of the plants after they have been detached from the ground largely freed of soil residues adhering to them and converted into a hardenable plastic foam embeds, characterized in that the underground parts are embedded before embedding in · the plastic foam with a film-forming, formaldehyde-binding organic substance covers. 609 557/80 3.66 © Bundesdruckerei Berlin