What is needle detection (over-the-needle detection):
Needle detection or over-detection is a professional term for a special inspection operation that must be carried out on textiles such as clothing/toys. During the sewing process of textiles, the needles will break and fall into the textiles, and these broken needles will cause harm to consumers. Therefore, many countries strictly stipulate that all textiles must be tested for broken needles before they enter the market. Rehow RHD high-sensitivity widened needle detector can meet the needs of fabric broken needle detection.
So which products need needle inspection?
Needle detection is required for all sewing products, textiles/plastic toys/food products that are in close contact with the human body, as well as products expressly stipulated in the "Needle Detection Law" or required by customers. Needle detection is also required for product accessories that require needle detection. Jewelry such as metal buttons/metal zippers of clothing need needle detection! What is the level of needle detection machine: needle detection level 4, level 6, level 8, level 10. These are wrong statements! The reason is that the user of the needle detector does not know the needle detector, and the sensitivity level of the needle detector is usually determined by the scale on the sensitivity knob of the needle detector.When the scale or sensitivity indicator is adjusted to 8, it is called the eighth level. In fact, this level of expression is a very general and unreasonable way of calling! Because the height of the gantry of the needle detector is different, the sensitivity of the needle detector will also be different. The height of the needle detector channel is inversely proportional to the sensitivity! For example: Take the Rehow luxury conveying needle detector as an example, when the sensitivity indicator is adjusted to 8, the nine-point test method of the 12CM channel height can detect Fe diameter 0.8mm standard test Card. The needle detector with 15CM channel height can only detect the standard test card with Fe diameter of 1.0mm, and the needle detector with 20CM channel height can only detect the standard test card with Fe diameter of 1.2mm!
It can be seen that the sensitivity level of the needle detector cannot be generalized! So how constant is the standard sensitivity of the needle detector? Qualified needle detector suppliers will randomly equip with needle detector standard test cards when you buy needle detectors. These test cards are card-shaped, and each card is attached with a small iron bead to measure the sensitivity of the needle detector. a reference standard. These needle detector standard test cards usually range from 0.8mm/1.0mm/1.2mm/1.5mm/2.0mm. Generally, it depends on the height of the needle detector channel you purchased to decide which test card to match.
Needle detection or over-detection is a professional term for a special inspection operation that must be carried out on textiles such as clothing/toys. During the sewing process of textiles, the needles will break and fall into the textiles, and these broken needles will cause harm to consumers. Therefore, many countries strictly stipulate that all textiles must be tested for broken needles before they enter the market. Rehow RHD high-sensitivity widened needle detector can meet the needs of fabric broken needle detection.
So which products need needle inspection?
Needle detection is required for all sewing products, textiles/plastic toys/food products that are in close contact with the human body, as well as products expressly stipulated in the "Needle Detection Law" or required by customers. Needle detection is also required for product accessories that require needle detection. Jewelry such as metal buttons/metal zippers of clothing need needle detection! What is the level of needle detection machine: needle detection level 4, level 6, level 8, level 10. These are wrong statements! The reason is that the user of the needle detector does not know the needle detector, and the sensitivity level of the needle detector is usually determined by the scale on the sensitivity knob of the needle detector.When the scale or sensitivity indicator is adjusted to 8, it is called the eighth level. In fact, this level of expression is a very general and unreasonable way of calling! Because the height of the gantry of the needle detector is different, the sensitivity of the needle detector will also be different. The height of the needle detector channel is inversely proportional to the sensitivity! For example: Take the Rehow luxury conveying needle detector as an example, when the sensitivity indicator is adjusted to 8, the nine-point test method of the 12CM channel height can detect Fe diameter 0.8mm standard test Card. The needle detector with 15CM channel height can only detect the standard test card with Fe diameter of 1.0mm, and the needle detector with 20CM channel height can only detect the standard test card with Fe diameter of 1.2mm!
It can be seen that the sensitivity level of the needle detector cannot be generalized! So how constant is the standard sensitivity of the needle detector? Qualified needle detector suppliers will randomly equip with needle detector standard test cards when you buy needle detectors. These test cards are card-shaped, and each card is attached with a small iron bead to measure the sensitivity of the needle detector. a reference standard. These needle detector standard test cards usually range from 0.8mm/1.0mm/1.2mm/1.5mm/2.0mm. Generally, it depends on the height of the needle detector channel you purchased to decide which test card to match.
