Quality Testing
What is a General Testing?
General testing evaluates potential quality issues in textiles and apparel products during use, enabling effective quality control. Key assessment items include fiber composition, colorfastness, and mechanical performance. Additionally, the suitability of care labels, such as recommended washing methods, is tested and verified to ensure compliance with appropriate labeling requirements.
Test Items
Fiber composition analysis and material types
| Fiber blending ratio/fiber identification | Test to measure the type and ratio of the composition fiber (including the distinction between rayon, flax, and wool) Wool identification: sheep, angora, rabbit, alpaca, llama, mohair, cashmere, camel |
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| Leather/Fur Identification |
Testing and inspection of types of leather and fur (including artificial & natural leather and fur identification) Natural leather: camel, rabbit, water buffalo, snake, lizard, crocodile (by type), eel, deer, ostrich, raccoon, fox, muskrat, horse, chinchilla, weasel, kangaroo, dog, cat, etc. Fur identification: camel, yak, cow, pig, goat, water buffalo, deer, ostrich, raccoon, mink, fox, beaver, marten, coyote, nutria, muskrat, horse, chinchilla, weasel, squirrel, kangaroo, mongoose, elk, lynx, dog, cat, etc. |
| Average diameter of wool | A test to measure the fiber diameter of wool fibers. |
Feather performance evaluation
| Composition mixing ratio | Test to evaluate the content of down, feathers, and other components in filling down materials |
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| Rechargeability | Test to determine the bulkiness of filling down materials |
| Umoh Mixing Ratio | Test to measure the content of duck down, goose down, and other components in filling down materials |
| Filler mass | Test to determine the mass of filling materials used in down products (e.g., jumpers, blankets, etc.) |
| Oxygen, turbidity, moisture content, black point content, oil content, odor | Test to confirm the quality of filling down materials |
| Feather permeability | Test to check for feather leakage in fabrics used for down products |
Dyeing performance evaluation
| Washing fastness | Test to evaluate the degree of color change and staining after washing using standard detergent |
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| Dry cleaning fastness | Test to evaluate the degree of color change and staining after dry cleaning with a solvent |
| Friction fastness | Test to evaluate the degree of staining due to friction |
| Combined fastness to sunlight and sweat | Test to evaluate the degree of color change due to the effect of artificial sweat and artificial light sources |
| Light fastness | Test to evaluate the degree of color change due to the effect of artificial light sources |
| Sweat fastness | Test to evaluate the degree of color change and staining due to the effect of artificial sweat |
| Water fastness | Test to evaluate the degree of color change and staining due to the effect of water |
Mechanical performance evaluation
| Washing Dimension Change Rate | Test to measure dimensional change rate after washing procedure |
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| Dry cleaning dimension change rate | Test to measure dimensional change rate after dry cleaning procedure |
| Ironing dimension change rate | Test to measure dimensional change rate after ironing |
| Density/mass of fabric | Density: number of yarns per unit length / Weight: mass per unit area (length) |
| Tensile strength and elongation |
Tensile strength: esistance to pulling force, maximum load applied until rupture Tensile elongation: the ratio of the length stretched up to that load |
| Tear strength | Test to measure the force required to tear the material in the direction of applied force |
| Bursting strength | Test for resistance to vertical load or pressure |
| Peel strength/Adhesion strength |
Peel strength : for bonding fabrics, the strength that resists separation of the surface/back side Adhesion strength: strength that resists peeling of laminated fabrics |
| Wear resistance | Test for resistance to repetitive friction |
| peeling | Test to evaluate the degree of pilling (fuzzing) caused by friction |
| Snackiness | Test to evaluate the degree of protrusion or snagging caused by external entanglement of fibers |
Test to check labeling (label recommendation)
| Label recommendation test | Test related to laundry recommendation symbols to evaluate the necessary test items for washing, dry cleaning, ironing, and other labeling requirements |
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| Label Verification Test | Test related to laundry recommendation symbols to confirm whether the washing, dry cleaning, ironing, etc., proposed by the client are suitable |
What is Hazardous Substances Testing?
With growing interest in health, it has become essential to measure the presence of hazardous substances in raw materials, textiles, apparel, and various consumer goods. We offer testing and analysis services to comply with domestic regulations, such as Korea's Special Act on Safety of Children's Products and the Electrical Appliances and Household Goods Safety Management Act, as well as international standards and buyer-specific requirements from regions such as the United States and Europe.
Test Items
KC Test
| Arylamine |
Test to extract and quantify azo dyes, a harmful substance that causes cancer, present in textiles, clothing, leather, ink, prints, etc. * Risk: Carcinogenic azo dyes may cause cancer, allergies, itching, etc., when absorbed by the human body. |
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| Formaldehyde |
Test to extract formaldehyde, used in textiles and leather, with distilled water, develop the color, and measure it with a spectrophotometer. * Risk: A class 1 carcinogen, formaldehyde can cause skin inflammation, headaches, chronic fatigue, breathing difficulties, coughing, and lung lesions. |
| pH |
Test to electrically measure the pH of water-soluble extracts (pH) from textile products using a glass electrode at room temperature. * Risk: (No specific risk mentioned in the text). |
| Allergenic dyes |
Test to extract and quantify dispersed dyes, which can cause allergies and be carcinogenic, present in textiles, clothing, leather, ink, prints, etc. * Risk: Can cause allergies upon skin contact. |
| Total nonylphenol content |
Test to extract and quantify NP and NPEO, which may be present in household or industrial detergents. * Risk: Used as surfactants, they can disrupt hormone function, cause endocrine system disorders, erectile dysfunction, and precocious puberty. |
| Phthalate plasticizer |
est to extract and quantify harmful phthalate substances from plasticizers used in the manufacturing process of ink, paint, plastics, etc. * Risk: Can cause reproductive issues, decreased sperm count, infertility, etc. |
| Organotin compounds |
Test to extract and quantify organic tin compounds present in coatings, paints, prints, leather coatings, etc. * Risk: Can cause central nervous system or peripheral nervous system disorders. |
| Chlorinated phenols |
Test to extract and quantify chlorophenols, which are included in insecticides used in leather, natural fibers, etc. * Risk: Used as preservatives, they can cause cancer when absorbed through the skin. |
| Dimethyl fumarate |
Test to extract and quantify dimethyl fumarate, present in leather materials such as leather and fur. * Risk: Can cause skin irritation, pain, itching, inflammation, etc. |
| Heavy metal/toxic element release |
Test to quantify heavy metals present in textiles, paints, prints, and plastic products, or extract and quantify heavy metals from specific environments (e.g., stomach, mouth, skin). * Risk: Exposure can cause headaches, anemia, and central nervous system disorders. |
| hexavalent chromium |
Test to extract and quantify hexavalent chromium, a carcinogenic substance that causes allergies, from leather or products. * Risk: Can cause cancer and dermatitis upon skin contact. |
| Nickel dissolution rate |
Test to measure the release of nickel from metal products that come into direct and prolonged contact with the skin, which can cause allergies. * Risk: Can cause skin allergies. |
Other hazardous substances test
| Perfluorinated compounds (PFOA/PFOS) |
Test to extract and quantify harmful perfluorinated hydrocarbons such as PFOA and PFOS included in waterproofing and coating treatments. * Risk: Can cause reproductive dysfunction, cancer, environmental pollution, etc. |
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| Bisphenol A |
Used in plastic bottles, containers, and receipt coatings, and is a typical endocrine disruptor. * Risk: Endocrine-disrupting substances, decreased sperm count, skin allergies, eye damage, etc. |
What is Functional Testing?
With changes in lifestyle and the increase in leisure activities, clothing has evolved beyond its basic purpose of wearability to meet various functional demands such as comfort, temperature retention, and convenience. To address these needs, we provide comprehensive functional testing and evaluation services, from material development to final product assessment.
Test Items
Comfort
| Moisture permeability/moisture resistance | Test to measure the function of transferring sweat in the form of vapor from the inside of the clothing to the outside. |
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| Moisture absorption and quick drying (drying speed/absorption speed) | Test to evaluate the functionality of fabrics in quickly absorbing sweat and drying quickly, measuring absorption speed and drying speed, and assessing the moisture management property (MMT) of the fabric. |
| Surface wetting resistance (water repellency) | Test to measure the performance of water penetration from the surface of the product to the inside of the yarn. |
| Domestic water (material) | Test to measure the function of preventing water from penetrating into the product from external contact. |
| Inland water (rain tower) | Test to evaluate the waterproof performance of finished products under artificial rain conditions simulating real rain, assessing not only the fabric but also any potential leaks from additional materials and seams (EN 14360). |
| Frictional charge/Half-life | Test to measure the occurrence of static electricity and the time it takes for static electricity to dissipate. |
Temperature maintenance
| Cool contact sensation | Test to measure the sensation of coldness, known as contact cooling, that is immediately felt when the fabric touches the skin. |
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| Hygroscopic heat generation and moisture absorption performance | Test to measure the self-heating property of the fabric when exposed to moisture from the surrounding air, especially when humidity increases compared to a dry state. |
| Pyrogenicity to light exposure | Test to measure the degree of heat generation in fabric after exposure to light irradiation. |
| Insulation | |
| Air permeability | Test to measure the amount of air passing through the fabric's surface to the back. |
| Thermal Mannequin (Finished Product Evaluation) | Test to measure the thermal insulation and evaporation resistance of finished clothing products when worn on a human mannequin. |
Other functions
| UV protection performance (blocking rate/blocking index) | Test to measure the ultraviolet (UV) blocking rate and blocking index of the material in the UV-R, A, B wavelength range. |
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| Appearance smoothness | Visual assessment of the degree of wrinkles (creases) that occur after washing. |
What is an Antibacterial/Deodorizing Testing?
Products such as bedding, which are used for extended periods and are difficult to wash, or innerwear, where hygiene management is critical, can easily promote microbial growth due to sweat and environmental factors. To address these issues, post-treatment processes are applied, including antimicrobial treatments and mold resistance, while also evaluating deodorizing (odor-neutralizing) performance to reduce unpleasant odors like sweat.
We provide a variety of hygiene-related testing and analysis services, including assessments of antimicrobial, deodorizing, and mite-repellent properties, to effectively manage product quality and hygiene standards.
Test Items
| Antibacterial | Test to evaluate whether the material has antimicrobial functionality to inhibit the growth of microorganisms. |
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| Mold test (antimicrobial) | Test to evaluate whether the material has antifungal functionality to inhibit mold growth. |
| Tick repellent | Test to evaluate whether the material has functionality to repel mites. |
| Deodorization performance evaluation | Test to evaluate the deodorizing performance of deodorized products such as fabrics/materials and deodorants. |
What is an Eco-Friendly Testing?
In the textile and consumer goods sectors, sustainability has emerged as a key issue, prompting domestic and international brands to actively adopt eco-friendly materials. In response, we offer a range of eco-friendly testing services, including identification of recycled polyester and analysis of microfiber (microplastic) release.
Test Items
| Identification of Recycled Polyester Fibers | Qualitative and quantitative evaluation of polyester fibers recycled from mechanically processed waste PET bottles. |
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| Microfiber Release Testing | Evaluation of microfiber (microplastic) release from materials and products, addressing a major environmental issue in the textile and fashion industry. *Providing the first TMC (The Microfibre Consortium) testing service in Korea, with microfiber release assessments conducted in accordance with international standards such as ISO 4484. |