CN112823579B

CN112823579B - Coating component composition of seed treatment agent

Info

Publication number: CN112823579B
Application number: CN201911149944.4A
Authority: CN
Inventors: 遇璐; 丑靖宇; 潘强; 陶晓光; 王莹
Original assignee: Jiangsu Yangnong Chemical Co Ltd; Shenyang Sinochem Agrochemicals R&D Co Ltd
Current assignee: Jiangsu Yangnong Chemical Co Ltd; Shenyang Sinochem Agrochemicals R&D Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2022-05-31
Anticipated expiration: 2039-11-21
Also published as: CN112823579A

Abstract

The invention belongs to the technical field of pesticides, and relates to a coating component composition of a seed treatment agent. The coating component composition at least contains a carrier and at least one auxiliary agent; wherein, the addition amount of the auxiliary agent is 20-60 percent, and the addition amount of the carrier is 10-50 percent. The coating component composition is used for secondary coating of the seed treatment agent, and can improve the glossiness of the coated seeds; the composition of the invention is added with beeswax which is fatty substances obtained by secretion treatment of 4 pairs of wax glands on the abdomen of a working bee with proper age; the seed adhesion can be further improved by mixing the seed coating with other auxiliary agents.

Description

Coating component composition of seed treatment agent

Technical Field

The invention belongs to the technical field of pesticides, and relates to a coating component composition of a seed treatment agent.

Background

The seed treating agent is a technology which is developed rapidly in the pesticide industry at present, and for seed-borne diseases and insect pests caused by seed propagation and soil-borne diseases and insect pests propagated in soil, the most economic and effective prevention and control means is to prepare the seed treating agent from seeds of crops for preventing and controlling the diseases and the insect pests.

However, the problem in the field of seed treatment agents is that the seed treatment agent containing active ingredients does not have space for adding more auxiliary agents due to the complexity of the active ingredients and the formulation of the preparation, so that the application performance and the marketability of the seed coat after coating the seed are difficult to achieve the ideal state. If the liquid medicine wrapped on the surface of the seeds falls off after being dried under the action of external force, such as shaking, packaging, transportation and the like, the liquid medicine amount on the seeds is obviously reduced, and the drug effect is influenced. Therefore, the judgment of the falling off condition of the seed treatment agent is a key problem in the research of the seed treatment agent industry at present. The invention adopts a secondary coating method, namely, a layer of film is added on the seeds coated with the medicament again or is mixed with the medicament for use, and the film has the characteristics of ventilation, medicament active component falling prevention, bright coating appearance and the like. The problem of the secondary coating is that the adhesion degree after coating is problematic.

At present, some research is carried out in the industry aiming at the problem of the adhesion degree of the seed treating agent coating, but the addition of a film-forming substance is mostly adopted for improving the adhesion degree of the seeds, and the film-forming substance is mostly a high molecular polymer. However, the technical scheme adopted by the invention for solving the problem of the adhesion degree is not reported in the known technology.

Disclosure of Invention

The purpose of the present invention is to provide a coating ingredient composition for a seed treatment agent.

In order to realize the purpose of the invention, the technical scheme of the invention is as follows:

a coating component composition of a seed treatment agent, wherein the coating component composition at least comprises a carrier and at least one auxiliary agent; wherein, the addition amount of the auxiliary agent is 20-60 percent, and the addition amount of the carrier is 10-50 percent.

The carrier is selected from one or more of bentonite, diatomite and pearl powder.

The auxiliary agent is selected from one or more of block copolymer and polycarboxylate, and the addition amount of the auxiliary agent is 1-10% of the weight of the preparation.

The auxiliary agent also comprises beeswax, and the addition amount of the beeswax accounts for 5-30% of the weight of the preparation.

The coating ingredient composition serves as a secondary coating of the seed treatment agent.

If bubbles exist in the preparation sample, a defoaming agent can be added, and the defoaming agent can be one or more of defoaming agents SAG1522, silicones, C8-10 fatty alcohols, phosphates, C10-20 saturated fatty acids (such as capric acid) and amides or the like.

In order to prevent the preparation from putrefaction, antiseptic may be added, and may be one or more of sodium benzoate, Kathon (2-methyl-4-isothiazolin-3-one and (B) 5-chloro-2-methyl-4-isothiazolin-3-one), potassium sorbate, sodium dehydroacetate, or others.

The color warning agent can comprise dye, pigment (including toner and color paste), etc., and the color can be red, orange, red, green, blue and purple, or any color obtained by compounding the colors.

The seed treatment agent for coating of the present invention can be coated on seeds coated with various kinds of seed treatment agents for the second time, such as dry powder for seed treatment, dispersible powder for seed treatment, liquid agent for seed treatment, emulsion for seed treatment, and suspension for seed treatment.

The invention has the advantages that:

the coating component composition is used for secondary coating of the seed treatment agent, and can improve the glossiness of the coated seeds; the composition of the invention is added with beeswax which is fatty substances obtained by secretion treatment of 4 pairs of wax glands on the abdomen of a working bee with proper age; the seed adhesion can be further improved by mixing the seed coating with other auxiliary agents. The problem of the adhesion degree of the coated seeds is solved, and no relevant report is found.

Detailed Description

The following specific examples are intended to illustrate the invention in further detail, but the invention is by no means limited to these examples, and methods known to those skilled in the art are included within the scope of the invention. The percentages and parts in the formula are by weight. All other raw materials are commercially available products.

The gloss after coating the seeds was according to the following criteria: the A level brightness and the seed coat brightness is like pearly; b-level brightness, and slightly glossy seed coat; brightness level C, dull and dull coat.

The adhesion of the seed treatment agent is expressed by a coating release rate value, namely, the coating release rate is measured according to 4.11 in the written specification of GB/T17768-1999 suspension seed coating product standard.

Formulation examples of formulations

Example 1-1 seed treatment agent for Red coating

According to the formula requirements, 20% of red color paste, TENSIOFIX DB 082%, BP 18315%, 10% of pearl powder and water are added to make up. And weighing the components one by one, and stirring and mixing the components uniformly to obtain the red seed treating agent for coating.

Examples 1-2 seed treatment agent for Red coating

According to the formula requirement, 20% of red color paste, 20% of beeswax, 20% of TENSILOXX DB 082%, BP 18315%, 10% of pearl powder and water for supplementing. And weighing the components one by one, and stirring and mixing the components uniformly to obtain the red seed treating agent for coating.

Example 2-1 seed treatment agent for blue coating

According to the formula requirements, 30 percent of blue color paste, 3052 percent of D, 15 percent of diatomite, 20 percent of pearl powder and water are added for complement. And weighing the seeds one by one, and stirring and mixing the seeds uniformly to obtain the blue seed treatment agent for coating.

Example 2-2 seed treatment agent for blue coating

According to the formula requirement, 30% of blue color paste, 20% of beeswax, 3052% of D3052%, 15% of diatomite, 20% of pearl powder and water in balance. And weighing the seeds one by one, and stirring and mixing the seeds uniformly to obtain the blue seed treatment agent for coating.

Example 3-1 seed treatment agent for Green coating

According to the formula requirements, 15% of green color paste, 3055% of D, 18310% of BP, 15% of pearl powder and water are added in balance. And weighing the components one by one, and stirring and mixing the components uniformly to obtain the seed treating agent for green coating.

Example 3-2 seed treatment agent for Green coating

According to the formula requirements, 15% of green color paste, 20% of beeswax, 3055% of D3055%, 18310% of BP, 15% of pearl powder and water in balance. And weighing the components one by one, and stirring and mixing the components uniformly to obtain the seed treating agent for green coating.

Example 4-1 yellow seed treatment for coating

According to the formula requirements, 40% of yellow color paste, TENSIOFIX DB 086%, BP 1835%, 5% of pearl powder and water are added to make up. And weighing the components one by one, and stirring and mixing the components uniformly to obtain the yellow seed treating agent for coating.

Example 4-2 yellow seed treatment for coating

According to the formula requirement, 40% of yellow color paste, 20% of beeswax, 10% of TENSILOXI DB 086%, 18315% of BP, 10% of pearl powder and water in balance. And weighing the components one by one, and stirring and mixing the components uniformly to obtain the yellow seed treating agent for coating.

Example 5-1 seed treatment agent for purple coating

According to the formula requirement, 20% of purple color paste, 0810% of TENSIOFIX DB, 25% of diatomite, 25% of pearl powder and water are added to make up. And weighing the materials one by one, and stirring and mixing the materials uniformly to obtain the purple coating seed treating agent.

Example 5-2 seed treatment agent for purple coating

According to the formula requirement, 20% of purple color paste, 20% of TENSIOFIX DB 0810%, 5% of beeswax, 25% of diatomite, 25% of pearl powder and water in balance. And weighing the materials one by one, and stirring and mixing the materials uniformly to obtain the purple coating seed treating agent.

Application performance measurement:

the seed treatment agent in the above examples was coated on corn seeds, and the following properties were measured after coating.

The gloss after coating the seeds was according to the following criteria: grade A brightness, the seed coat is bright like pearly; b-level brightness, and slightly glossy seed coat; brightness level C, dull and dull coat.

For the adhesion of the two seed treatment agents, the invention does not adopt an intuitive observation mode to observe the shedding condition of the seed surface, and replaces the specific numerical value of the coated seed shedding rate, the shedding rate measuring method adopts the measurement of the 4.11 coating shedding rate in the GB/T17768-1999 written specification of the suspended seed coating product standard (the same applies hereinafter), and the detailed measuring method is as follows:

weighing two parts of seeds coated with 10g (accurate to 0.002g) of the seed treatment agent, respectively placing the two parts in triangular flasks, accurately adding 100mL of ethanol into one part, plugging the flask, placing the flask in an ultrasonic cleaner, oscillating for 10min to fully dissolve the coated seed coating agent, taking out the seed coating agent, standing for 10min, taking 10.0mL of supernatant into a 50mL volumetric flask, diluting the supernatant to a scale with ethanol, and shaking up to obtain a solution A.

Placing another part on a shaker, shaking for 10min, carefully taking the seeds into another triangular flask, and treating with the solution A to obtain solution B.

Absorbance was measured at 550nm using ethanol as a reference.

Computing

Coating peeling rate w₄(%), calculated as follows:

in the formula:

m₀preparing the mass of the coated seeds weighed by the solution A;

m₁preparing the mass of the coated seeds weighed by the solution B;

A₀-absorbance of solution a;

A₁absorbance of solution B.

TABLE 1 coated seed Brightness and seed shedding Rate

	Brightness level	m₀	m₁	A₀	A₁	Percent exfoliation (%)
							Examples 1 to 1	B	10.0113	10.0317	0.63884	0.60807	5.01
Examples 1 to 2	A	10.3133	10.1110	0.63561	0.62165	0.24
							Example 2-1	B	10.7653	10.0102	0.70651	0.61754	6.00
Examples 2 to 2	A	10.5542	10.1010	0.70881	0.67763	0.14
							Example 3-1	B	10.9090	10.0003	0.81209	0.69725	6.34
Example 3-2	A	10.0506	10.2200	0.80097	0.81170	0.34
							Example 4-1	B	10.0887	10.1212	0.60098	0.56077	6.99
Example 4 to 2	A	10.1112	10.2233	0.61105	0.61646	0.22
							Example 5-1	B	10.0998	10.6542	0.57879	0.57374	6.03
Examples 5 and 2	A	10.2233	10.0009	0.56665	0.55266	0.30

As can be seen from the above examples and comparative examples 1 to 5, in the two comparative examples in each example of the present invention, whether beeswax is added has a large influence on the coating brightness and the peeling rate, i.e., the key application performance attachment degree of the seed treatment agent, and the lower the coating peeling rate value, the better the coating seed attachment ability is, and the more excellent the application performance of the preparation is. On the whole, the coating brightness of the seed treatment agent added with the beeswax is obviously improved, the coating adhesion is obviously improved, and the obvious effect is brought.

Claims

1. A seed treatment agent for coating, characterized in that: the seed treating agent for coating contains carrier, auxiliary agent and beeswax; wherein, the addition amount of the carrier is 10 to 50 percent; the addition amount of the beeswax is 5% -30%; the addition amount of the auxiliary agent is 1-10%;

the auxiliary agent is selected from one or more of block copolymer and polycarboxylate;

2. The coating seed treatment agent according to claim 1, characterized in that: the coating is coated with a seed treatment agent as a seed treatment agent.