Home Textile Product Inspection

Towels are a kind of fabric products used for wiping and cleaning, which are widely used in personal care, family life and hotel industries. Generally made of cotton, bamboo fiber or microfiber, they have good water absorption and softness, and can be used to wipe the face, body and furniture surface. High-quality towels are soft to the touch, absorb water quickly, are durable and not easy to shed, and can effectively help the skin keep dry and clean. According to different uses, towels can be divided into face towels, bath towels, sports towels, children's towels and other types. Among them, bath towels are larger in size and suitable for full body wrapping, while sports towels emphasize lightness and breathability. With the development of science and technology, functional products such as antibacterial towels, quick-drying towels and beauty towels are gradually favored by consumers. When using towels, they need to be washed and dried regularly to keep them hygienic. Whether at home, in the gym or on the road, towels are essential cleaning products in daily life, bringing comfort and convenience.

Towel Inspection Requirements

The basic safety technical requirements for products should comply with the provisions of GB18401, and infant and children's products should comply with the provisions of GB31701.

The intrinsic quality of the product includes weight deviation rate, breaking strength, water absorption, hair removal rate, fiber content deviation, color fastness (resistance to soap washing, friction and chlorine bleaching) and water extract in towels. The intrinsic quality indicators should comply with the regulations.

The product appearance quality includes specification size deviation rate, defects, sewing quality and ironing quality. The appearance quality indicators should comply with the regulations.

Towel inspection test method

Internal quality inspection

Determination of weight deviation rate: weigh constant weight (weigh 10 square towels or face towels) under the standard atmosphere specified in GB/T6529, and calculate the weight deviation rate.

The determination of breaking strength shall be carried out in accordance with the provisions of GB/T 3923.1.

The determination of water absorption shall be carried out in accordance with the provisions of Method A in GB/T 22799-2019. When sampling, avoid areas with paint, satin, embroidery or other areas that may be affected.

The determination of hair removal rate shall be carried out in accordance with Method A of GB/T 22798-2019.

The determination of fiber content shall be carried out in accordance with the provisions of GB/T 2910 (all parts) and FZ/T 01057 (all parts).

The determination of colour fastness to washing with soap shall be carried out in accordance with Method C (3) of GB/T 3921-2008.

The determination of colour fastness to rubbing shall be carried out in accordance with GB/T 3920.

The determination of color fastness to chlorine bleaching shall be carried out in accordance with the provisions of GB/T7069.

The determination of water extract in the sample shall be carried out in accordance with the provisions of GB/T 27754. For samples with a length exceeding 1800 mm and a width exceeding 1200 mm, take one-fourth of the whole sample and overlock the cut edges with this sewing thread.

Appearance quality inspection

Determination of size deviation rate

Tools: Steel ruler.

Spread the sample flat on the inspection table and gently smooth it with your hands so that the sample is in a naturally expanded and contracted state. Use a steel ruler to measure at one quarter and three quarters of the length and width of the sample with an accuracy of 1 mm. Calculate according to formula (1) and round the calculation result to one decimal place in accordance with GB/T 8170.

Inspection of defects, sewing quality and ironing quality

During inspection, the illumination on the sample surface shall not be less than 600lx, and the inspector's binoculars shall be about 60cm away from the sample surface, and inspection shall be carried out line by line.

Evaluation of color difference and color fringing

Evaluate according to GB/T250.

Towel Defect Regulations

Towel defects are stipulated as follows:

a) Linear defects: defects with a thickness of one yarn or less and a length of ≥1 cm. Each defect is counted as one defect within 3 cm, and the length of defects exceeding 3 cm is calculated cumulatively. The length of one defect shall not exceed 6 cm.

b) Strip defects: defects with a thickness of two yarns or less and a length of ≥0.5 cm. Each defect within 1.5 cm is counted as one defect, and the length of defects exceeding 1.5 cm is calculated cumulatively. The length of one defect shall not exceed 4.5 cm.

c) Block defects: hair loss, exposed bottom, and trapezoidal hair.

d) Scattered defects: including reverse pile on plain cloth, reverse pile loops, unclean pile cutting, loose spirals, uneven pile loops, etc.

e) Printing and dyeing defects: including brushing, plate dragging, color withering, color bleeding, wrong color, inaccurate plate registration, plate falling, reverse printing, incorrect pattern position, color matching, etc.

f) Damage defects: 3 or more yarns are broken in the warp and weft.