industry – dawhua

Coating & Resin

A coating is a covering that is applied to the surface of an object, usually referred to as the substrate. The purpose of applying the coating may be decorative, functional, or both. Coatings may be applied as liquids, gases or solids

Paints and lacquers are coatings that mostly have dual uses of protecting the substrate and being decorative, although some artists paints are only for decoration, and the paint on large industrial pipes is for preventing corrosion and identification e.g. blue for process water, red for fire-fighting control etc. Functional coatings may be applied to change the surface properties of the substrate, such as adhesion, wettability, corrosion resistance, or wear resistance.In other cases, e.g. semiconductor device fabrication (where the substrate is a wafer), the coating adds a completely new property, such as a magnetic response or electrical conductivity, and forms an essential part of the finished product.

the coating is to be applied at a controlled thickness, and a number of different processes are in use to achieve this control, ranging from a simple brush for painting a wall, to some very expensive machinery applying coatings in the electronics industry. A further consideration for ‘non-all-over’ coatings is that control is needed as to where the coating is to be applied. A number of these non-all-over coating processes are printing processes. Many industrial coating processes involve the application of a thin film of functional material to a substrate, such as paper, fabric, film, foil, or sheet stock. If the substrate starts and ends the process wound up in a roll, the process may be termed “roll-to-roll” or “web-based” coating. A roll of substrate, when wound through the coating machine, is typically called a web.

Resin is different in that it isn’t a coating applied on top of a product, instead the protective outer layer and coloring are baked into and throughout the entire product. Resin is often confused for a type of plastic, but it’s so much more than that.

Dawhua products are used in coating and resin industry:
Mno Penta 98
Di-Penta93
Di-Penta90
TMP

Adhesive

Adhesives may be found naturally or produced synthetically. The earliest human use of adhesive-like substances was approximately 200,000 years ago,when Neanderthals produced tar from the dry distillation of birch bark for use in binding stone tools to wooden handles.The first references to adhesives in literature appeared in approximately 2000 BC. The Greeks and Romans made great contributions to the development of adhesives. In Europe, glue was not widely used until the period AD 1500–1700. From then until the 1900s increases in adhesive use and discovery were relatively gradual. Only since the last century has the development of synthetic adhesives accelerated rapidly, and innovation in the field continues to the present.
Glue and adhesives derived from both natural and synthetic sources are key inputs for thousands of products used by many markets. As a result, household expenditure and the performance of downstream markets, such as the construction and manufacturing sectors, heavily affect the revenue performance of the Glue and Adhesives Manufacturing industry. Despite being in the mature phase of its life cycle, the industry is dynamic and characterised by innovation. Recently, this has been driven by a shift towards environmentalism and sustainability. An expanding range of adhesive products are offered for several applications, and the industry produces a number of adhesives specifically designed to serve a particular purpose.

Dawhua products are used in Adhesive industry:
Mono Peta 98
Di-Penta 93
Di-Penta90
TMP

Plastic

The plastics industry manufactures polymer materials—commonly called plastics—and offers services in plastics important to a range of industries, including packaging, building and construction, electronics, aerospace, and transportation.

It is part of the chemical industry. In addition, as mineral oil is the major constituent of plastics, it therefore forms part of the petrochemical industry.

Dawhua products are used in Plastic industry:
Mno Penta 98
Di-penta93
Di-Penta90

Paper

The pulp and paper industry comprises companies that use wood as raw material and produce pulp, paper, paperboard and other cellulose-based products.
Papermakers usually use only the parts of the tree that other commercial industries don’t want – such as saw mill waste and forest thinnings.
Some of the pulp properties depend upon the process used to separate the fibres from the timber. The main processes are called mechanical and chemical.

Dawhua products are used in Paper industry:
Mno Penta98
Di-Penta93
Di-Penta90
DAP
MAP
Sodium formate

Testile

The modern textile industry
Both industrialized and developing countries now have modern installations capable of highly efficient fabric production. In addition to mechanical improvements in yarn and fabric manufacture, there have been rapid advances in development of new fibres, processes to improve textile characteristics, and testing methods allowing greater quality control.

The modern textile industry is still closely related to the apparel industry, but production of fabrics for industrial use has gained in importance. The resulting wide range of end uses demands a high degree of specialization. In the most technically advanced communities, the industry employs technicians, engineers, and artists; and a high degree of consumer orientation leads to emphasis on marketing operations. Some manufacturing operations, usually serving specialized or local markets and dependent on a limited number of firms for product consumption, still employ many hand operations, however.

Textile fabrics are judged by many criteria. Flexibility and sufficient strength for the intended use are generally major requirements, and industrial fabrics must meet rigid specifications of width, weight per unit area, weave and yarn structure, strength and elongation, acidity or alkalinity, thickness, and porosity. In apparel fabrics, design and colour are major considerations, and certain physical properties may be of secondary importance. In addition, the various tactile properties of a fabric, described as its “hand,” “handle,” or “feel,” influence consumer acceptance.

fibres are units of matter having length at least 100 times their diameter or width. Fibres suitable for textile use possess adequate length, fineness, strength, and flexibility for yarn formation and fabric construction and for withstanding the intended use of the completed fabric. Other properties affecting textile fibre performance include elasticity, crimp (waviness), moisture absorption, reaction to heat and sunlight, reaction to the various chemicals applied during processing and in the dry cleaning or laundering of the completed fabric, and resistance to insects and microorganisms. The wide variation of such properties among textile fibres determines their suitability for various uses.

Dawhua products are used in Textile industry:
Sodium Formate
Sodium Hydrosulphite

Food and Agriculture

Modern agronomy, plant breeding, agrochemicals such as pesticides and fertilizers, and technological developments have sharply increased crop yields, but cause ecological and environmental damage. Selective breeding and modern practices in animal husbandry have similarly increased the output of meat, but have raised concerns about animal welfare and environmental damage. Environmental issues include contributions to global warming, depletion of aquifers, deforestation, antibiotic resistance, and other agricultural pollution. Agriculture is both a cause of and sensitive to environmental degradation, such as biodiversity loss, desertification, soil degradation, and global warming, all of which can cause decreases in crop yield. Genetically modified organisms are widely used, although some are banned in certain countries.

The Food and Agriculture Sector has critical dependencies with many sectors, but particularly with the following:
Water and Wastewater Systems, for clean irrigation and processed water
Transportation Systems, for movement of products and livestock
Energy, to power the equipment needed for agriculture production and food processing
Chemical, for fertilizers and pesticides used in the production of crops
Dawhua products are used in Textile industry:
Urea
Custic soda
Sodium Hydrosulphite
MAP
DAP

Other industry

Dawhua products in many other industries such as health industries
It is used in leather industry, water and sewage industry, pharmaceutical industry, etc

DAP
MAP
PENTAERYTHRITOL
Sodium formate

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DAWHUA INDUSTRY