XY-PT-⊘15CAMG 15mm Crimp perfume fine mist pump sprayer shorter type

How to avoid residual odor during the production process of 15mm crimp perfume mist pump short nozzle?

As the core component of portable perfume bottles, the residual odor problem of 15mm crimp perfume mist pump short nozzle directly affects product quality and user experience. Odors may come from material residues, chemical reagent contamination or process defects in the production process, which need to be effectively avoided through full process control.

1. Raw material selection and pretreatment: Block the source of odor from the source

The purity of raw materials is the basis for avoiding odor. For the core components of the 15mm crimp nozzle, such as aluminum pump body, plastic snaps and seals, materials that meet food grade or cosmetic grade standards must be strictly screened. Aluminum stamping parts should use high-purity aluminum to avoid impurities releasing odor in subsequent processing; injection molding raw materials should preferably choose medical-grade PP or PE that has been degassed to ensure that the resin itself does not contain volatile organic compounds (VOCs).
Odor detection is required before raw materials are put into storage. Through olfactory evaluation and gas chromatography-mass spectrometry (GC-MS) analysis, the odor risk of the material itself is checked. For aluminum materials, alkaline cleaning can be carried out in advance to remove the surface oxide layer and oil stains; plastic particles need to be dried at 80-120℃ for 4-6 hours before injection molding to completely remove moisture and residual monomer volatiles to avoid odor during high-temperature injection molding.

2. Precise control of production links: Elimination of process odor

Aluminum stamping and forming stage
The selection of lubricants is crucial during aluminum stamping. Food-grade odorless lubricants must be used to avoid the residual mineral oil odor of traditional industrial lubricants. After stamping, ultrasonic cleaning (water temperature 60-70℃, adding neutral detergent) is immediately used to remove surface oil stains, and then rinsed with deionized water for more than 3 times after cleaning to ensure that there is no detergent residue. The cleaned aluminum parts need to be dried in a clean workshop (temperature ≤80℃) to avoid impurities.

Injection molding process
The barrel of the injection molding machine needs to be cleaned regularly. Before each raw material change, it should be flushed with special cleaning materials for 3-5 cycles to remove the residual old materials and coking products. The mold temperature should be controlled within a reasonable range (such as PP material mold temperature 50-60℃) to avoid the decomposition of raw materials and the generation of odor due to local overheating. The plastic parts after injection molding should be transferred to the dust-free area immediately after cooling and finalization to avoid contact with odor sources such as oil smoke and dust in the workshop environment.

Surface treatment process
When oxidizing aluminum materials, use environmentally friendly anodizing liquid and avoid using additives containing heavy metals or volatile components. The sealing treatment after oxidation needs to use the deionized water boiling method (temperature 95-100℃, time 20-30 minutes) to ensure that the pores of the oxide film are completely closed and prevent the residual electrolyte from releasing odor. For parts that need to be plated, the vacuum degree must be guaranteed to be ≥1×10⁻³Pa during the vacuum coating process to avoid impurity gases from mixing into the film layer. After coating, it needs to be cooled to room temperature in a vacuum environment before being taken out to reduce the attachment of pollutants.

Automated assembly process
The assembly workshop needs to maintain a constant temperature (20-25℃) and constant humidity (40%-60%), and use a high-efficiency air filter (HEPA) to purify the air to avoid the intrusion of environmental odors. The lubricants and adhesives used for assembly must be food-grade odorless products, and the amount must be strictly controlled. Excess adhesives must be wiped off with a dust-free cloth dipped in isopropyl alcohol (food grade). After assembly, the buckle sealing is tested by automated equipment (such as air pressure testing, pressure 0.2-0.3MPa, pressure maintenance for 30 seconds) to ensure that there is no residual odor in the gap.

3. Cleaning and testing system: ensure that the end product has no odor

Multi-stage cleaning process
After the product is assembled, it needs to go through three levels of cleaning: the first level is ultrasonic cleaning with deionized water (frequency 40kHz, time 5 minutes) to remove surface dust; the second level is soaking in 75% food-grade alcohol for 3 minutes to kill microorganisms and dissolve organic residues; the third level is rinsed with ultrapure water and then dried with hot air in a Class 100 clean area (temperature 50-60℃, wind speed 1-2m/s) to avoid secondary pollution.
Standards and methods for odor detection
Establish a dual detection mechanism: sensory testing is performed by 3-5 trained professionals to conduct olfactory evaluation of the product in a windless environment (10-15cm away from the product, sniffing time ≤3 seconds) to determine whether there is an odor; instrument testing is performed by headspace-gas chromatography (HS-GC) to analyze volatile components, requiring the total VOCs content to be ≤0.1mg/m³. Products that fail the test need to be returned to the cleaning process for reprocessing until they meet the standards.

4. Full-chain quality traceability: Continuously optimize odor control

During the production process, it is necessary to record the parameters of each link (such as cleaning time, temperature, test results, etc.) and establish a traceable quality file. Regularly maintain the equipment, such as cleaning the ultrasonic tank and replacing the filter element, to ensure that there is no odor residue in the equipment itself. At the same time, through FMEA (failure mode and effect analysis), identify potential odor risk points, such as residual raw materials in the mold gap, aging of cleaning fluid, etc., and formulate preventive measures in advance.
In the production of 15mm series nozzles, Zhangjiagang XinYe Chemical Sprayer Co., Ltd relies on the advantages of a complete industrial chain to achieve full process control from mold development to automated assembly. Its independent mold workshop can ensure mold accuracy and reduce dead corners of raw material residue; advanced automated cleaning and testing equipment, combined with ISO9001-2008 quality system requirements, provides reliable guarantee for odor control, so that the product can always maintain clean and odor-free quality while meeting efficient production.
Through strict selection of raw materials, precise control of production processes, multi-dimensional cleaning testing and full-chain traceability, the 15mm crimp perfume fine mist pump short nozzle can effectively avoid residual odor, providing users with a pure and safe use experience, while laying a solid foundation for the quality upgrade of perfume bottle packaging.