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제품

인공 땀 (Artificial Perspiration): 제품명: 인공 땀 (Artificial Perspiration); 용도: Product Testing & Research; 메이커: Pickering Laboratories; 카달로그:

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소개

인공 땀 (Artificial Persipiration)

1. 부식 테스트(Corrosion Testing)

Accelerated testing methods are a popular way of testing durability, by subjecting products to controlled conditions that are much more aggressive than normal conditions. For wearables that are in prolonged contact with human sweat, the main areas of concern are corrosion and colorfastness. Corrosion can lead to altering of the appearance or leaching of sensitizing chemicals, such as nickel and chromium, that cause allergic reactions. Salt, the main component in human sweat, increases water’s ability to speed up the corrosion process. Other factors that facilitate corrosion are the pH of the solution and presence of certain organic compounds such as lactic acid and sulfur-containing amino acids. Metals and alloys are not the only surfaces to be affected by corrosion. Organic coated surfaces, colored plastics or self-adhesive films in automotive interiors, spectacle frames and shoe leather are just a few of the multitude of surfaces also affected. Tarnishing, loss of gloss, shrinkage, cracking and discoloration could all be attributed to the corrosive effects of sweat on products and materials.

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2. Buffered Sweat

The pH of the solution is an important consideration in product testing, affecting corrosion rate, level of color degradation and leaching of metals and organic components from wearable products. Many procedures require a tight pH range during testing. To accommodate these pH requirements and to improve pH stability over time, Pickering Laboratories is offering buffered versions of industry-specific artificial perspiration formulations. By adding a Phosphate buffer to the original formulation, the pH stability of the solution is greatly improved while its effect on corrosion and colorfastness remains unaffected.

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3. 견뢰도 테스트(Colorfastness Testing)

Colorfastness is one of the most important concerns in the textile industry. Discoloration of fabric can be due to perspiration, light, rubbing or a combination of all three. Salt, urea and lactic acid present in sweat can disrupt the bonding that dyes form with the fabric fibers, causing fading of the color. In addition, amino acids in sweat can attach to fabric to produce “protein stains”. Use of nanotechnology to endow new properties to textiles, such as antibacterial or UV protection, water repellency or flame retardancy, together with incorporating sensors and other digital components, creates the need to consider the effects of sweat on nanoparticles leaching and corrosion of integrated circuits as well.

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