Synthetic Dermatitis
Introduction
Introduction to synthetic resin dermatitis There are many kinds of synthetic resins, and commonly used synthetic resins include epoxy resins, polyester resins, phenol resins, urea resins, acrylic monomers, and the like. Industrial occupational skin diseases account for about 85% of the entire occupation. Especially in the petroleum, tar chemical industry, synthetic resin industry, rubber industry, electroplating industry pharmaceutical industry, glass fiber industry coating industry and other industries are particularly common. basic knowledge The proportion of illness: 0.005%--0.007% Susceptible people: no specific population Mode of infection: non-infectious Complications: herpes-like dermatitis
Cause
Synthetic resin dermatitis etiology
(1) Causes of the disease
There are many kinds of synthetic resins. Commonly used synthetic resins include epoxy resin, polyester resin, phenolic resin, urea-formaldehyde resin, acrylic monomer, etc. The cause of the disease may be irritant or allergenic, and the chemical properties of general synthetic resins. It is more stable, but in the production process, some raw materials, monomers, auxiliary materials (such as plasticizers, stabilizers, colorants, etc.), as well as some free substances, cause different degrees of skin damage and systemic symptoms.
(two) pathogenesis
Irritating to synthetic resins, allergies cause varying degrees of skin damage and systemic symptoms.
Prevention
Synthetic resin dermatitis prevention
1. Improve working conditions, improve operating methods, and strengthen necessary protective systems and measures. Improve production equipment and improve sanitary conditions in production workplaces: install good and effective ventilation, exhaust and vacuum equipment, reduce harmful gases and dust in the workshop, and set up bathrooms and changing rooms.
2. Strengthen personal protection, pay attention to wearing overalls, gloves, masks, hats, masks, protective eyes and other protective clothing, boots and so on. Protective clothing such as eyes, boots, etc.
Complication
Synthetic resin dermatitis complications Complications, herpes-like dermatitis
Redness, papules, blisters, accompanied by intense itching, abnormal hair.
Symptom
Synthetic resin dermatitis symptoms common symptoms papule nausea dizziness hair loss
1. Resin industry workers mainly manifest as acute or chronic dermatitis
(1) Acute dermatitis: more common in the contact with epoxy resin, steam or dust and phenolic resin, urea-formaldehyde resin, formaldehyde vapor in the production process of aminoplasts, as follows:
1 eyelids, face, neck, arms and other exposed parts of redness, papules, blisters, accompanied by intense itching, highly sensitive, can also spread the whole body.
2 After disengagement, give appropriate treatment for about one week, and the dermatitis will resolve, and then contact can be re-issued.
(2) Chronic dermatitis: long-term engaged in epoxy resin, polyvinyl chloride, phenolic resin and aminoplasts, such as dry, keratinized, chapped, papules, acne, etc., and nail thinning, hair loss and pigmentation.
Mucosal symptoms may have pharyngitis, conjunctivitis, bronchitis, systemic symptoms may have headaches, dizziness, unstable walking, nausea, vomiting and so on.
2. Contact epoxy glue, nail polish and PVC tote bag, gloves, contact polyester resin molding agent, polyester fiber (polyester fabric), polyester film, contact acrylic printing ink, printing plate, bone Cement can cause dermatitis-like changes.
Examine
Synthetic resin dermatitis examination
The disease mainly has a history of contact with synthetic resin chemicals, so patients with redness, itching, pain, blisters, erosion, exudation, etc. after skin contact with synthetic resin should consider this disease. Using Vaseline containing 1% synthetic resin as a patch test, it can be positive, combined with clinical features, can diagnose the disease. At the same time, blood routine can be checked, suggesting that eosinophils increase, it can be used as a support diagnosis of this disease.
Diagnosis
Diagnosis and identification of synthetic resin dermatitis
Diagnosis can be made based on the patient's history of exposure, lesions occurring at the site of contact and typical rash manifestations, and positive patch tests. At the same time, it needs to be differentiated from the following diseases.
1. Acute eczema, this is an allergic skin damage, mostly related to exposure to allergens such as pollen, lacquer trees and other reasons.
2. erysipelas, the skin color is bright red, the boundary of the boundary is clear, no contact history, local tenderness is obvious, accompanied by systemic symptoms such as chills, fever, headache, nausea, and peripheral blood tests see white blood cells often increase.
3. Anal acute eczema, generally followed by flushing - papules (potular papules) - blisters (exudation) - erosion - crusting (scaly) - pigment regeneration process, accompanied by itching.
