Instant plastic bag inspection technology
Instant noodles are a shining pearl in the world food industry in the 20th century. It was named one of the greatest inventions of the 20th century and has become an international convenience food. In today's frequent food safety problems, instant noodles and instant noodles bags have not escaped this robbery. Recently, a certain brand of instant noodles was found to have exceeded the standard for the product's acid value. Excessive acid value will cause the product to taste deteriorating. An excessively high acid value will cause gastrointestinal discomfort, diarrhea, and damage to the liver. According to expert analysis, the reason for the excessively high acid value of instant noodle products may be due to various factors: The instant noodles are fried foods, and all of them are placed in an aerobic environment. If the quality of the oil used is not good or is not replaced or recycled for a long time, May cause acid value exceeds the standard; In addition, instant noodles generally need to add preservatives, such as citric acid, benzoic acid and so on. If too much preservative is added, the acid value may be too high; the edible oil itself is an animal or vegetable oil, and in the storage process, a long time and high temperature may cause the oil to be oxidized and then produce fatty acids. The difference is more likely to deteriorate. Hair Rejuvenation Laser Helmet,Hair repair device,Anti-hair Loss Laser Hair Growth Cap,Laser Medical Hair Loss Laser Cap Shenzhen Guangyang Zhongkang Technology Co., Ltd , https://www.lighttherapymachine.com
Combining its own technology and testing experience, Labthink has organized a set of quality control solutions for instant noodle bags for instant noodle packaging and storage. It hopes to help instant noodles manufacturing companies conduct inspection and control in packaging and storage to ensure product quality. Reliable and reduce unnecessary economic losses.
First, the quality of instant noodles packaging finishing requirements Facing the packaging and material quality requirements mainly come from the functional requirements, including oxygen, moisture, light, seal, odor (solvent residue) and other security factors, but also to evaluate Printing, machine performance, such as mechanical properties, heat sealing properties, surface slip, printing quality. In order to achieve the above requirements, instant noodle companies must carefully select reasonable packaging materials and perform quality inspection and control of incoming materials, production and processing, and delivery in accordance with relevant standards and standards to ensure product quality and reliability.
Second, the packaging quality of the important control indicators 1, resistance to oxygen, moisture barriers and other indicators of barriers are fried, dry foods, easily oxidized deterioration, moisture softening and mildew, once the oxidation easily produce fatty acids, resulting in acid prices exceeded; and damp will be Affected tastes, resulting in deterioration or even mouldiness, cause quality accidents in the consumption process. Therefore, instant noodles manufacturers must strengthen the detection of oxygen and moisture barrier properties of packaging materials. At present, domestic instant noodle companies have shortcomings in the construction of laboratories and the configuration of testing instruments, which can easily result in the lack of control on important indexes such as barrier properties, and there are hidden risks.
(1) Oxygen barrier performance of packaging materials is particularly important because of the characteristics of easy-to-oxidize and deterioration of the instant noodles. Combining this feature, it can focus on the oxygen-barrier properties of packaging materials for inspection and control. Labthink's OX2/230 Oxygen Permeability Test System adopts the principle of isobaric testing and has high testing accuracy. Oxygen transmission rate can be tested on three different types of packaging materials at the same time, greatly improving the testing efficiency; if the company needs To control the permeation performance of other gases such as carbon dioxide and nitrogen, the VAC series pressure differential gas permeameter can be used to meet the customer's different gas transmission detection requirements.
(2) Moisture-resistance performance detection is moisture-proof and moisture-proof. It is an important means to solve the problem of damp and mold deterioration of instant noodles. Therefore, this indicator needs to be controlled. The convenience of food packaging materials for moisture permeability detection is generally required to use the weighing method principle. Labthink's W3/060 water vapor transmission rate test system implements the GB 1037 cup test method and uses a six-chamber independent test design to fully satisfy customers. The moisture permeability of the packaging material is tested.
2. The safety indicators of safety and odor indicators mainly include the two indicators of sanitation and solvent residue. Hygiene indicators mainly focus on the detection of lead, antimony and other metal elements as well as the total number of bacteria and E. coli in evaporation residues.
Solvent residue is a problem that needs to be solved jointly by packaging suppliers and instant noodle companies. It must be controlled from the packaging process. The main control is from compound adhesives, printing inks, and solvents. Once the solvent residue exceeds the limit, it will affect consumers. Serious health hazards. Solvent purity and solvent residue detection must be carried out using a professional gas chromatograph to completely eliminate safety hazards. Labthink's GC-7800 packaged gas chromatograph can be used for control.
Solvent residue can cause odor, which can directly lead to consumer recognition and purchase of the product. Of course, the odor still exists in the film itself. This problem also needs to attract the attention of packaging suppliers and instant noodle companies, and requires odor analysis of raw materials.
3, instant noodle packaging sealing performance test instant noodles is a kind of easy to absorb moisture, but also easy to oxidative deterioration products, in addition to control of packaging materials, oxygen barrier water vapor performance, we must ensure that the bag's tightness, no leakage, So as not to cause product leakage or even lead to product corruption. Poor sealing performance mainly stems from the sealing area. Therefore, the focus of sealing performance inspection should be whether or not there is a leakage in the sealing section.
(1) Instant noodle packaging sealing performance High-efficiency qualitative detection The current enterprises mostly use qualitative detection methods, that is, in accordance with GB/T 15171 standard for rapid detection, this detection method is the principle of negative pressure, the packaging bag placed in the MFY-01 sealing tester In the vacuum tank filled with water, a negative pressure is generated by vacuuming the vacuum tank. Under the effect of the pressure difference between the inside and outside of the packaging bag, the determination is made through an artificial visual inspection method, and if a continuous bubble is generated, the leak is determined. The advantage of this method is that the test is efficient, but quantitative testing cannot be achieved.
(2) Quantitative detection of sealing performance of instant noodle packaging Sealability testing should simulate the situation where the product is damaged or leaked due to external pressure during circulation and shelf life. Positive pressure method should be used for quantitative detection of sealing performance. The LSSD-01 leakage and seal strength tester adopting the positive pressure method can realize the quantitative detection of the rupture strength of the instant noodle packaging bag and the constant pressure leak detection. In addition, it can also be used for the sealing inspection of unsealed packaging through different additional devices. .
4. The printing appearance of package printing and quality inspection packaging is one of the factors that cause consumers to have a purchase behavior. The relatively high quality of packaging printing requires a large amount of information, fine text, and rich colors. The quality of product packaging and printing directly affects the consumer's trust in the product. If you want to ensure a beautiful appearance, you need to control the print quality.
(1) Color control In color printing, it is necessary to use human to perform color analysis, often resulting in different evaluations due to different lighting conditions or problems due to the same-color different spectrum phenomenon. Printing with a standard light source can effectively avoid the occurrence of such problems. SPS-80T dual light source color matching desk is completely satisfied with printing, paint, ink, plastics, printing and dyeing and other industries involved in color observation and color matching work, can be applied to a variety of print job applications.
(2) Ink layer adhesion and abrasion resistance detection of the printing ink layer of the packaging bag will seriously affect the product image, and even affect the consumer's trust in the product quality, through this test can effectively prevent the product during transportation and other processes The phenomenon that the printed ink layer of the package is peeled off due to friction. Labthink's MCJ-01A friction tester and RT-01 friction tester can be used to test the abrasion resistance of the surface coating, effectively analyze the scratch resistance of the print, the hardness of the coating, etc.; YGJ-02 adhesive tape Rolling machine is used with BLJ-02 disc peeling tester, and it is suitable for the test test of printing ink layer binding fastness of plastic film and cellophane decorating printed matter (including composite film printed matter) produced by gravure printing process. Can also be used for vacuum coating, surface coating, composite and other related processes formed by the surface layer adhesion test test.
The above content was described from the aspects of barrier properties such as barrier property, sealing, (odor) solvent residue and printing quality of instant noodle packaging, and it also needs to perform on the performance of the machine, such as mechanical properties, heat sealing performance, surface smoothness, etc. Test and control to ensure reliable product quality. Labthink hopes to increase exchanges and communication with instant noodle companies and jointly promote the standardization of industry testing standards and popularization of testing applications.