Industry overview and product positioning
In the field of fine chemicals and materials science, emulsified wax is like a “bridge” connecting the oil phase and the aqueous phase, and has always been the core raw material in the research and development of emulsion systems.Among them, anionic emulsified waxes rely on mature technology, excellent emulsifying effect and wide adaptability. After so many years of development, they still occupy the mainstream position in the fields of textiles, daily chemicals, and industrial emulsions.
Basic product definition and physical characteristics
Anionic
Emulsifying wax, simply put, is an emulsified waxy raw material with anionic hydrophilic groups. It is essentially a compound of anionic surfactants with fatty alcohols and fatty acids.Its core function is to combine oil and water well to form a stable emulsion. No matter what kind of emulsion formula it is, it is basically inseparable from it.
From the appearance point of view, most of it is flaky, granular or waxy, and its properties are very stable at room temperature. As long as it is heated, it can be quickly dispersed in water to form a uniform emulsifying system, whether it is conventional industrial production or a variety of different application scenarios, it can be adapted.
Comparison of molecular structure and charge type
From the point of view of molecular structure and charge properties, anionic emulsified wax itself has an anionic charge. Most of its hydrophilic ends contain functional groups such as sulfate group, sulfonic acid group, and carboxylate group. When it touches water, it will form a negative charge system. This also directly determines its performance and the logic of matching with other raw materials.
Emulsified waxes are mainly divided into three categories, and their performance differences are obvious, and they can be distinguished at a glance.：
-Cationic emulsified wax: positively charged, the biggest feature is soft conditioning and strong adsorption capacity. It is often used with cationic conditioners such as
Behentrimonium chloride.
-Non-ionic emulsified wax: uncharged, high temperature, and particularly good compatibility with other raw materials
-Anionic emulsified wax: The core advantage is strong decontamination and good dispersion
These three types of products have their own uses, and together, they can meet the emulsification needs of all fields of industry, daily chemicals, and textiles.
Formula composition and system principle
The formula structure of anionic emulsified wax is relatively fixed, and it is mainly composed of four parts: fatty alcohol, fatty acid, anionic
Emulsifier, and a small amount of co-emulsifier.
-Fatty alcohol: Most of them use long-chain structures such as cetyl alcohol and stearyl alcohol. The main role is to build the “skeleton” of the entire system, provide a waxy substrate, and ensure the stability of emulsification.
-Fatty acids: Mainly to assist in regulating the overall viscosity, so that the emulsification efficiency is higher.
-Anionic emulsifier: This is the core functional ingredient. The common types are sulfate salts, sulfonates, and fatty acid soaps.
-Emulsifier: The amount is not large, but the effect is very critical. It can optimize the compatibility of each component and take the stability of the emulsion to the next level.
The usual classic formula combinations include stearyl alcohol plus stearic acid soap, cetyl alcohol plus sulfate salt, and fatty alcohol polyoxyethylene ether sulfate.Most of the traditional industrial models are made by saponification process, which is a bit weakly alkaline in itself, which is more suitable for specific industrial formula needs.
Core functions and application mechanism
The value of anionic emulsified wax is mainly reflected in the three core functions of emulsification, dispersion and stability, which are also the key reasons why it can be widely used.
Emulsification is its most basic and core ability. It can evenly disperse various types of oil phases such as grease, wax, silicone oil, synthetic esters, and mineral oil in water to stably form O/W (oil-in-water) emulsions, wax emulsions, polishing emulsions and other systems. It is also an important category in
Oil in water emulsifier.
Relying on its own anionic charge characteristics, its dispersion and wetting ability are particularly good. It can effectively avoid powder particles from getting together, and it can also prevent the system from stratification and precipitation, greatly prolong the storage time of the emulsion, and improve the stability during use. It can fully meet the strict requirements of the industrial field for long-term stability.
Practical application scenarios in multiple fields
1. Textile and softener industry
It can be used as the core raw material of wax emulsion, smoothing agent, fabric finishing agent, and industrial softener, which can make the fabric smooth and soft, and also improve the friction and washing resistance of the fabric.However, it should be noted that because it comes with a negative charge, it cannot be used directly with strong cationic systems such as catic fabric softener, otherwise it is prone to precipitation and demulsification. This is also something that must be paid attention to when designing the formula.
2. Daily chemicals and personal care
It is a classic emulsified raw material in traditional cold creams and creams. It has strong emulsifying power and high cost performance. It is easy to formulate high-viscosity creams, whether it is face creams, body creams, or various care and cleaning products. It can be used, especially suitable for popular products.However, with the development of the high-end skin care market, everyone has higher and higher requirements for the mildness, skin feeling, and compatibility with active substances of the product. The irritation of the anionic system is slightly higher than that of the nonionic, and the skin feeling is not so delicate, so the proportion of high-end skin care products is slowly decreasing, and it is more used in people-friendly and affordable care products.
3. Industrial emulsion field
This is its most widely used field, whether it is floor wax, automobile maintenance wax, metal processing emulsion, polishing care system, you can see its figure.The most important thing in this kind of scenario is the emulsification stability, and there is no requirement for skin feeling. Anionic emulsified wax has just become the preferred raw material for industrial emulsions with the advantages of strong emulsification, good stability and controllable cost. After adding it, the film-forming, water resistance and polishing texture of the product can be significantly improved.
Product advantages and existing limitations
Core advantage
1. It has strong emulsifying ability, and no matter what type of oil-phase raw material it is, it is basically compatible.
2. The source of raw materials is very sufficient, the production process is also very mature, the overall cost is relatively advantageous, and the price is high.
3. The dispersion performance is particularly good, which can make the entire system more uniform and improve the stability during storage.
4. It is easy to build a regular emulsion structure, which can reduce the trouble and risks in the production and storage process.
5. The compatibility with various wax raw materials is very good, and it is very suitable for making exclusive systems such as wax emulsions.
There are limitations
1. The compatibility with the cationic system is very poor, and it is easy to demulsify, flocculate, stratify, and precipitate when it is directly mixed together.
2. It is more sensitive to pH value, especially soap-based types, which are prone to roughening and soap analysis in acidic environments, so the pH value control requirements in the formula are relatively high.
3. The fineness and freshness of the skin feeling are not as good as the non-ionic and liquid crystal emulsifying systems, and it is difficult to meet the skin feeling needs of high-end skin care products.
OSMFACT®MY CASD
INCI name: Cetearyl alcohol and Sodium lauryl sulfate
Packing specification: 25kg/bag
Product positioning: oil-in-water (O/W) type high-end anionic emulsified wax, mainly benchmarked against the international Crodex A, is also one of the very few high-end alternative models in China that can achieve mass production.
Its core indicators, such as emulsification efficiency, emulsion stability, and formula compatibility, can be on par with international big brands, while at the same time meeting domestic production technology and cost requirements, it provides cost-effective alternatives to localization in the fields of daily chemicals, textiles, and industrial emulsions.Whether it is face cream lotion, care product, textile finishing agent, industrial wax emulsion, it can be adapted, not only to meet the stability requirements of the traditional system, but also to take into account the needs of high-end products for gentle skin feeling, and it is very practical.
Overall summary
At present, the development of the industry is also facing some challenges. There are three main aspects: international brands have been increasing investment in research and development, and their competitiveness is getting stronger and stronger.
However, on the whole, anionic emulsified wax, as a classic old-fashioned emulsified raw material, with mature production technology and stable performance, still has an irreplaceable position in the fields of daily chemicals, textiles, and industry.The emergence of MY CASD, a domestic high-end product, has also injected new impetus into the upgrading and development of the entire industry.
Hubei Mingya New Material Technology Co., Ltd.
