skin diseases caused by fiberglass
Introduction
Introduction to skin diseases caused by glass fiber The fiberglass industry is one of the emerging industries that has developed over the past 40 years. Because of its excellent properties such as heat resistance, insulation, moisture resistance, fire resistance and acid and alkali resistance, its products have important applications in electrical appliances, building materials, machinery industry and national defense industry. The glass fiber is melted in a platinum-bismuth alloy vertical furnace (some of which is made of clay) in a de-alkali glass, and is drawn through a very fine mesh (diameter <10 m). Lubricants are still required in the drawing to enhance the toughness and softness of the glass filament. Adhesives (ie, clear paint) are required in weaving and weaving. Phenolic resins, epoxy resins, polyester resins, and the like are still required in the production of various glass fiber products. The glass fiber is light and light, and its debris flies in the workshop. It is easy to stick on the work clothes and exposed parts such as the head and hands, and even penetrate into the underwear to adhere to the waist and abdomen. The lubricant used is mainly an emulsifier composed of dicyandiamide formaldehyde resin (fixing agent), stearic acid, transformer oil, flat rubber and the like. During operation, the lubricant often sticks to the hands and forearms, even the face and the back of the foot. basic knowledge Sickness ratio: 0.05% Susceptible people: no specific people Mode of infection: non-infectious Complications: pruritus
Cause
Causes of skin diseases caused by glass fibers
(1) Causes of the disease
The wire drawing industry, wire drawing, weaving, weaving and production of fiberglass products workers, the number of wire drawing workers with more lubricants are more common, and the line, the weaver and the workers who produce glass fiber products are also seen. There is no obvious relationship between the onset and the length of service. The contact time before the onset is mostly in the case of wire drawing workers exposed to lubricants. Most of them are affected after 1 to 2 months of work, and some cases occur after 1 to 2 days of initial contact. The most important relationship is dicyandiamide formaldehyde resin, which may be a causative factor because it contains about 2% free formaldehyde. The dermatitis which occurs in various glass fiber products is related to various synthetic resins as adhesives.
(two) pathogenesis
The glass fiber is light and light, and its debris flies in the workshop. It is easy to stick on the work clothes and the head, the exposed parts such as hands, and even the underwear is attached to the waist and abdomen. The lubricant used is mainly dicyandiamide resin. (fixing agent), stearic acid, transformer oil, flattening and other emulsifiers. In operation, the lubricant often sticks to the hands and forearms, even the face and the back of the foot. The cause of the disease is the original lubricant. Sexual stimulation, a few people can have an allergic reaction to the lubricant on the basis of the disease, and the most important relationship with the disease is dicyandiamide formaldehyde resin, which may be a causative factor because it contains about 2% free formaldehyde. The dermatitis that occurs in the production of various glass fiber products is related to various synthetic resins as adhesives.
Prevention
Skin disease prevention caused by glass fiber
1. Improve equipment such as improving the mechanization of drawing, installing a protective cover on the lubricant nozzle, installing cleaning equipment and equipment ventilation, cooling and vacuuming equipment.
2. Improve the quality of the lubricant when fully formulated, improve its stability, and carry out research on the fixing agent.
Complication
Skin disease complications caused by fiberglass Complications pruritus
Eczema-like dermatitis type, fingertip localized dermatitis, exfoliation of the forefoot of the nail bed, scattered papules, itchy skin, burns, facial heat shock erythema.
Symptom
Symptoms of skin diseases caused by fiberglass Common symptoms Eczema edema Skin itching pimples
1. Eczema-like dermatitis type is most commonly found in wire drawing, the skin lesions are mainly distributed on the back of the hands, the back of the knuckles, the wrist, the forearm, followed by the face, neck, upper arm, lower limbs and the back of the foot, for scattered or densely integrated pieces. Inflammatory papules and edematous erythema, some are erosive or even shallow ulcers, long-term eczema-like changes or chapped, the length of the disease varies, if you stop contact with the lubricant, you can heal in about 1 week, the disease of this type The reason is the primary stimulating effect of the lubricant. A few people can have an allergic reaction to the lubricant on the basis of the disease. The most important relationship with the disease is dicyandiamide formaldehyde resin, which contains about 2% free formaldehyde. It may be a cause of illness, and dermatitis occurring in the production of various glass fiber products is related to various synthetic resins as an adhesive.
2. Fingertip localized dermatitis occurs in the line and weavers, the skin lesions are limited to the right thumb, indicating the flexion and its sides, mainly characterized by redness of the skin, desquamation, dry and dry, long-term, every winter, The incidence is particularly common, and this type is associated with direct stimulation of the adhesive.
3. The front edge peeling of the nail bed is seen in the wire drawing worker who is exposed to the lubricant. The 2nd, 3rd and 4th fingers of the left hand with the most contact with the lubricant are common, which is characterized by the separation of the free edge of the front end of the nail, the eclipse, and the main pain. There is local redness due to the penetration of the glass wire into the forefoot of the nail bed.
4. Scattered pimples are mainly found in drawing workers, which occur in the back of both hands, the wrist and the palm of the hand, and the needle to the corn-sized papules. The top can have a black point-like depression. Generally, there is no inflammation and tenderness. This type is thicker. The glass filaments are caused by the mechanical action of stabbing the skin.
5. Itchy skin is mainly seen in workers who do not use lubricants for drawing and cotton-cutting work. It is characterized by simple itching, which occurs in the neck, limbs and lower back. It is more common in summer and often disappears after bathing, mainly due to glass filament debris. Caused by stimulation.
6. Burns are occasionally seen on the back of the hand and the flexion of the forearm of the wire drawing worker. They are small and shallow ulcers or linear scars, mainly caused by hot glass filament debris falling on the leather surface.
7. Facial heat shock erythema is rare, mainly due to long-term exposure to high temperature radiation from the furnace.
Examine
Examination of skin diseases caused by glass fibers
Laboratory inspection
(1) Skin histopathological examination: Some skin diseases have their own pathological changes, which can be diagnosed and differentially diagnosed accordingly.
(2) Skin test:
1 spot towel test. Used to check for contact allergens.
2 scratch test or piton test. Used to determine if a substance has an allergic reaction (type I).
3 leprosy test. It is used to judge the immune status of leprosy patients.
4 sputum test. Helps diagnose the bacillary rash.
(3) Microbiological examination: Examination of dermatophytes, leprosy, and plague helps to diagnose the corresponding skin diseases.
Diagnosis
Diagnosis and identification of skin diseases caused by glass fiber
The fiberglass industry's wire drawing workers, wire-cutting, weavers and fiberglass products workers, the types of skin lesions are eczema-like dermatitis, fingertip localized dermatitis, nail bed leading edge peeling, scattered papules, itchy skin, burns , facial heat shock erythema, etc., you can diagnose.
Generally not confused with other diseases.
