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[laundry chemicals] cautions for synthetic detergents

Author
화인Tnc
Date
2019-01-18 16:40
Views
545
▒ Synthetic detergents and laundry preparations

There are many kinds of laundry detergents widely used in general households such as powdered soap, laundry soap, and synthetic detergent.
They are suitable for household laundry by using laundry detergents such as alkali agents, bleaching components, enzymes and fluorescent dyes in order to improve the washing effect or the characteristics of the product.
However, unlike the home laundry, the laundry that is handled at the laundry business often leads to a gradual or sudden laundry accident by these laundry preparations, so I describe the relationship between laundry detergent and laundry as follows.

▒ Effect of alkalinity

Alkali in water washing promotes deformation of fibers and desalination of dyes.
Alkali gradually decomposes the protein component of animal fiber and shrinks or lint occurs as washing is repeated.
(wool, silk, synthesis of the previous two)
Nylon is yellowed by alkaline.

▒ Influence of bleaching ingredient

Synthetic detergents contain a certain amount of oxidation-bleaching components such as sodium percarbonate or sodium perborate, which improves the washing effect.
These components mildly bleach, which is not a problem in the ordinary case, but this affects some fibers. When the dyeing fastness is low, washing temperature is high, washing time is long or when it is soaked for a long time, it causes discoloration.

▒ Influence of enzyme components

Synthetic detergents contain a certain amount of protease, which improves the washing effects of skin peelings, blood, protein foods and fungi. These components can safely be used for vegetable fibers and synthetic fibers, but animal fibers may be degraded by the dissolution of protein components or cause discoloration.

▒ Effect of Fluoride or Fluoride

In order to increase the whiteness of white laundry, fluorescent dyes have been widely used in the past.
Fluorescent whitening agents used in weak alkaline synthetic detergents are effective for cellulosic fibers such as cotton, hemp, and rayon, but have little effect on synthetic fibers.
White gets whiter and blue gets bluer. However, when used in soft and light pastel colors, the colors are blurred. When used in a resin-treated garment, there is yellowing.
Repeated washing with a detergent containing a brightener causes a darkening or self-extinction phenomenon in which the whiteness decreases.
Most brighteners cannot be used in combination with fabric softeners.

These laundry detergents have excellent functions, but because of the above effects, it is safe and effective for the laundromats to selectively use these detergents to suit laundry and contamination sources.