Method and composition for treatment of nets for aquaculture

A technology of uses, biocides, applied in the direction of chemicals for biological control, botanical equipment and methods, applications, etc., can solve the problems of expensive, time-consuming, long drying time, etc.

Pending Publication Date: 2021-12-03
ARXADA LLC
View PDF22 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The process of applying antifouling coatings to these large webs via the conventional dip and dry process described above is time consuming and expensive as it i

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and composition for treatment of nets for aquaculture
  • Method and composition for treatment of nets for aquaculture
  • Method and composition for treatment of nets for aquaculture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: Preparation according to the antifouling preparation of the present invention

[0065] Table 1: Micronized Cu 2 Preparation of O dispersion

[0066]

[0067] The Cu 2 O dispersions are used to prepare antifouling formulations.

[0068] Table 2: Preparation of antifouling formulations*

[0069]

[0070] *Specific gravity = 1.289, % solids weight = 36.83, % solids volume = 28.

[0071] The particle size distribution curves of the antifouling formulations of Table 2 have been determined by laser light scattering analysis. The resulting particle size distribution curve (particle size as a function of % particle accumulation relative to the total sample) is depicted in FIG. 1 .

[0072] The median and average particle sizes calculated from this curve were about 0.81196 μm and about 0.98811 μm, respectively. Particle size values ​​for selected cumulative % of particles are described in Table 3. The d-values, in particular d10, d50 and d90, have be...

Embodiment 2

[0076] Embodiment 2: Comparison of fishing nets

[0077] The feasibility of applying the antifouling formulation via the method of the invention to fishing nets ("experimental nets") was compared with nets impregnated with the antifouling formulation of Example 1 alone ("control nets"). The fishnet used for this comparative test was a commonly used nylon fishnet.

[0078] For the test mesh, approximately 30cm x 30cm nylon mesh was cut into small pieces and rolled into a bundle. The bundle was placed in an aluminum pan filled with the antifouling formulation according to Table 2. The disc was then placed into a laboratory scale pressure vessel with fittings to allow both vacuum and pressure to be applied. A vacuum of about 0 kPa was applied for a period of 30 minutes. After 30 minutes, the vacuum was released and the antifouling formulation was removed by decanting. The web was then again subjected to a vacuum of about 0 kPa for 30 minutes to remove any antifouling formul...

Embodiment 3

[0088] Example 3: Penetration Depth of Antifouling Marine Coatings in Fishing Nets

[0089] The penetration depth of marine antifouling formulations into fishing nets was compared for two different application methods and two different antifouling formulations. The two antifouling formulations used were the antifouling formulation of the invention ("experimental antifouling formulation"), ie according to Table 2, and the "competitor's" antifouling formulation ("competition"). "Competitor's antifouling formulation" means a typical commercially available antifouling formulation; it is highly similar to the antifouling formulation of the present invention ("experimental antifouling formulation"); The main difference in antifouling formulations is that the active agent is not in micronized form. The two methods compared are the vacuum process according to the invention (vacuum, experiment) and the conventional impregnation method (impregnation, comparison).

[0090] Table 5: P...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

The present invention provides a process for treating and drying a marine or submarine textile material to inhibit bio-fouling thereof. The invention further provides a marine or submarine textile material with anti-fouling properties obtained by the process of the invention, as well as the use of an anti-fouling formulation according to this invention for inhibiting the bio-fouling of marine and submarine textile materials.

Description

technical field [0001] The present invention relates to a method for inhibiting biofouling of marine aquaculture nets, the use of the method and nets treated with the method. Background technique [0002] Surfaces submerged in seawater can quickly become covered with marine life, known as marine biofouling or generally biofouling. Fish nets used in marine aquaculture are known to become contaminated within a short period of time, leading to low oxygen levels in the nets, which affects fish growth and prevents fish waste from draining out of the nets. For this reason, fishing nets used in marine aquaculture are often coated with an antifouling coating. [0003] In a common antifouling treatment process, the mesh is dipped and dried by hanging in the air or in a hot air stream. These nets are usually large nets, often exceeding 50 meters in diameter, and are therefore usually transported in bundles to an 'anti-fouling treatment facility'. These bundles are then unwound and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01N25/26A01N59/20A01P1/00
CPCA01N59/20A01N59/16A01N43/80A01P15/00A01N25/26A01N25/34A01N43/40C09D5/1618
Inventor 保罗·卡波克布列塔尼·考德威尔彼得·范阿肯杰伊·帕特尔凯文·E·贾纳克金乐红萨克·欣克尔贾斯廷·麦肯德
Owner ARXADA LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap