Forensic appraisal of meltblown cloth machine quality

Melt-blown cloth is the most basic raw material for masks. Melt-blown cloth mainly uses pp polypropylene as the basic raw material. Due to environmental reasons such as the epidemic, the production of high-quality melt-blown fabrics is in short supply. Many businesses have purchased production equipment, but have produced substandard melt-blown fabric products. The quality of melt-blown fabric production lines is one of the most important problems. Zhongke Testing, a professional forensic product quality appraisal organization under the Chinese Academy of Sciences, provides meltblown cloth production line appraisal services.

《Order Form》
GB/T 30923-2014 "Plastic polypropylene (PP) melt-blown special materials"
FZ/T 93074-2011 "Melt-blown nonwoven production combined machine"
FZ/T 64078-2019 "Melt-blown nonwovens"

quality product dispute situation:
According to the situation reported by the entrusting party and the information provided, the entrusting party signed an "Order Order" with a mold company (hereinafter referred to as the supplier) and purchased two sets of the same model of "melt-blown cloth production equipment" involved for the production of melt-blown cloth. During the production process, the client discovered that no matter how the process parameters were changed, the two sets of "melt-blown cloth production equipment" involved could not produce normal melt-blown cloth products.
In order to further clarify the reasons why the equipment cannot produce normally, the client hopes to conduct a quality analysis on whether the "melt-blown cloth production equipment" involved has quality problems that prevent the normal production of melt-blown cloth products.

quality analysis results:
The quality analysis expert group conducted a discussion and comprehensive quality technical analysis on the relevant information and on-site investigation and inspection of the "melt-blown cloth production equipment" involved, and made the following suggestions and conclusions:
The "melt-blown cloth production equipment" involved had quality problems such as uneven air gaps in the spinneret die and the inability of the spinneret die temperature control system to effectively control the uniformity of the spinneret die temperature. As a result, the equipment involved was unable to produce qualified meltblown cloth products. 012Product quality appraisalForensic appraisal3For related business inquiries, please contact customer service