Search for...
English
Español
Soft Lint-Free Disposable Household Cleaning Wipe
When producing non-woven cleaning cloth, it is crucial to ensure the consistency of its thickness, density and uniformity. This not only affects the performance of the product (such as water absorption, abrasion resistance and feel), but also directly determines the market competitiveness of the product. The following are some key measures and technical means that can help achieve this goal:
1. Selection and control of raw materials
Fiber quality consistency: Select high-quality fiber raw materials and ensure the consistency of fiber diameter, length and strength. Uneven fibers will cause deviations in the thickness and density of the final product.
Mix ratio optimization: If multiple fibers (such as polyester, polypropylene or viscose) are used, the proportion of each fiber needs to be precisely controlled. An automated batching system can be used to reduce human errors.
2. Optimization of production process
(1) Fiber laying technology
In non-woven fabric production, fiber laying is a key step in determining uniformity. Common laying methods include:
Carding: Applicable to short fibers, the speed and pressure of the carding machine need to be adjusted to ensure uniform fiber distribution.
Air-laid: The fibers are spread evenly by air flow, which is suitable for producing high-density and high-uniformity products.
Spunbond/Meltblown: For thermoplastic fibers, the fiber distribution can be adjusted by controlling the spinneret aperture and cooling conditions.
(2) Bonding process
Thermal bonding: The fibers are bonded in a point or full manner by a heated roller. The temperature, pressure and speed need to be strictly controlled to avoid local overheating or insufficient bonding.
Chemical bonding: When using adhesives, it is necessary to ensure the uniformity of spraying or impregnation to avoid local excess or deficiency.
Needle punching: The fibers are interwoven by mechanical puncture, which can enhance the density and uniformity of the fabric, but the depth and frequency of needle punching need to be controlled.
(3) Online monitoring
The key parameters of the production process, such as fiber laying thickness, bonding strength and fabric density, are monitored in real time using sensors and automated equipment. For example:
Laser scanner: used to detect the thickness and uniformity of the fabric surface.
Tension control system: ensure that the tension of the fabric on the production line is consistent to avoid stretching or wrinkles.
3. Control of post-processing process
Forming treatment: The fabric is formed by heating or humidification to stabilize its thickness and density.
Cutting and rolling: During the cutting process, precise cutting equipment and tension control system are used to ensure that the size and performance of each section of fabric are consistent.
4. Quality inspection and feedback
Laboratory test: Use a thickness gauge to measure the thickness of different parts to ensure that the deviation is within the allowable range.
Use a density tester to evaluate the quality per unit area and verify the consistency of density.
Carry out water absorption test and abrasion resistance test to indirectly reflect the uniformity of the fabric.
Statistical process control (SPC): Collect production data, analyze the fluctuation trend of thickness, density and uniformity, and adjust process parameters in time.
Customer feedback mechanism: Continuously improve the production process according to the actual use of customers.
Through the above measures, the consistency of thickness, density and uniformity of nonwoven cleaning cloth can be effectively improved. It should be noted that these measures should be adjusted in combination with specific production processes and product requirements, and a professional technical support team can be invited to optimize and guide if necessary.
