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When we make jam and pickle some cooked food, we need to use sealed jars for storage. Sometimes we need to store them for several months before opening them, but once time passes for a long time, our sealed tubes are not easy to open. So what should we do if we encounter a situation where a sealed jar cannot be opened? Next, we will provide some tips and teach you how to open it.   Method 1:   We can pry open along the edge of the bottle cap and use sharp objects such as knives or scissors to maintain atmospheric pressure balance inside and outside the can.     Method 2:   Next, we can wrap paper towels with stainless steel and keys to increase friction, and then pry the bottle cap along the edge of the bottle mouth to allow air to enter the can and open it.   Method 3:   We can find a sharp object or a small knife to poke a hole in the lid, and once the air pressure inside and outside the bottle is released, it can be balanced and easily opened.   Method 4:   We can tilt the sealed jar upside down and tightly grip it, tapping the bottom of the jar and knocking on the lid can also break the intermolecular force between the jars.   Method 5:   We can use our home hair dryer to repeatedly heat the bottle cap from far to near, or we can open the sealed jar.   Method 6:   I can soak the sealed jar in a pot and then heat it with 80 degree hot water for half a minute, but be careful not to heat it for too long. Alternatively, I can water the lid with hot water for a few minutes and then forcefully pull out the lid to open it.   The above is the specific solution for how to operate when the sealed pipe cannot be opened. I believe that through the introduction of the above content, everyone can quickly learn how to operate and handle it in a timely manner.

1. The physical properties of the materials used for plastic bottles are different:   Polyethylene terephthalate (PET) is a colorless transparent substance with a certain gloss (indeterminate), or an opaque milky white substance (crystalline). Difficult to ignite and burn, but once burned, although the flame is separated, it can still continue to burn. When burned, it will melt and burst into fragments, with a yellow flame and early blue edges. There are small droplets falling, black smoke, and a slightly sweet and irritating odor in the mountainous area. The performance of pure PET is very poor, especially in terms of impact strength and heat resistance, but after being reinforced with glass fiber by cosmetic manufacturers, various properties are greatly improved.   Physical properties of polyethylene (PE): Polyethylene is non-toxic, odorless, and milky white in color. A crystalline plastic with a density of 0.91-0.96g/cm3. Polyethylene has a certain mechanical strength, but compared to other plastics, its mechanical strength is low and its surface hardness is poor.     2. Different water resistance:   Polyethylene has excellent insulation properties. At room temperature, polyethylene is insoluble in any known solvent and is resistant to dilute sulfuric acid, dilute nitric acid, and any concentration of other acids, as well as various concentrations of alkali and salt solutions. Polyethylene has high water resistance and its properties can remain unchanged after long-term exposure to water. The polyethylene produced by cosmetics manufacturers has poor water permeability, while it has good permeability to oxygen, carbon dioxide, and many organic matter vapors.   3. Different temperature resistance:   Temperature resistance: Polyethylene will age and become brittle under the action of heat, light, and oxygen. The typical operating temperature for high-pressure polyethylene is around 800C, while for low-pressure polyethylene it is around 1000C. Polyethylene can withstand cold and still has good mechanical properties at -600C, and some flexibility at -700C. PE bottles are relatively soft and have a waxy feel to the touch. Compared to equivalent plastics, they are lighter in weight, semi transparent, and have a blue flame when burned. Common washing products and chemical packaging, such as detergent bottles. The environmental label with a bottom of 2 on the bottle.   PET bottles have high transparency, luster, and a crisp sound when knocked. They are commonly used in beverage bottles, snack food bottles, and peanut oil bottles; The environmental label with a bottom of 1 on the bottle.

Plastic containers have a wide range of applications, including food, medicine, agriculture, and beauty. Today, the editor will take you to understand the application and advantages of plastic containers in the beauty industry.   The beauty industry uses a wide variety of plastic container materials for cosmetics and skincare packaging, which have good plasticity. With their superior performance, low cost, and adaptability to environmental protection, they have rapidly developed in competition with other packaging materials such as glass.     Compared to glass products, plastic bottles have lower density, lighter weight, adjustable transparency, and are less prone to breakage; Plastic bottles have good corrosion resistance, acid and alkali resistance, impact resistance, and high mechanical strength. They are easy to shape and have low production losses. Plastic products are easy to color and can be adjusted according to needs, making it easier to meet packaging design requirements.   Reasons for not filling cosmetics:   Considering the thermal expansion and contraction of the material, it is normal to reserve a section of air. 2. Due to the high air pressure inside the bottle caused by different altitudes in different regions, cosmetics may leak out. 3. The bumps during logistics transportation can easily overflow if filled. 4. There are chemical phenols in perfume, which are very volatile, so half of the capacity of perfume is 75~80%; If filled to the brim, it is easy for the contents to seep out, which can affect the appearance of the product or cause contamination and render it useless. Excessive pressure can cause the bottle to crack during transportation, and if there are special gases present, it can also explode.   This is the characteristic of the production process and raw materials. The product is produced on a standardized assembly line, and the actual weight is the same as the packaging label, not less than one gram.

The sealed jar has a heat-resistant glass preservation box with no bubbles or cold lines, high transparency, and the ability to withstand sudden temperature changes is better than the Glass heat-resistant glass of the Le Kou cup, but the price is much cheaper.   Nowadays, at the price of tempered glass, you can buy high-end high borosilicate heat-resistant glass preservation boxes. The lid is made of high-end PP and imported silicone materials, and uses the principle of vacuum negative pressure to have a more sealing effect. When heating in the microwave, just open the small button on top. The bowl mouth is smooth and flat, making cleaning easier and more convenient.     The appearance of a sealed tank: The sealed tank includes a tank body and a tank cover. The joint surface between the tank cover and the tank body is provided with a circumferential groove, and a sealing ring is provided on the circumferential groove; The upper opening of the sealing ring is equipped with an outward opposite edge, and there are air holes on the opposite edge of the upper opening; The lower opening of the sealing ring is equipped with a hook buckle, which matches the lower opening of the can lid. After adopting the above structure, there are two seals between the tank body and the tank cover. The first seal is sealed by the convex surface of the sealing ring, and the second seal is sealed by the opposite edge of the upper opening. The lower hook can make the sealing ring installed firmly, not deformed, and prevent the hand from being scratched by the cover opening; It has the advantages of simple and reasonable structure, easy processing, high production efficiency, good sealing effect, and strong durability.   Material Science:   Made of materials such as glass, plastic, metal, etc. There are more glasses.   Category:   Glass sealed jar; Plastic sealed cans; Stainless steel sealed tank   Advantages: 1. The sealed tank is made of high-quality stainless steel material, which is corrosion-resistant, odorless, and can prevent various items from mixing flavors. 2. It has an excellent effect on keeping food dry and fresh. 3. Colored transparent sealed jar lid provides a more intuitive storage experience and is more convenient to use. 4. Elegant and exquisite in design, easy to carry, it is your ideal companion for home travel.

There are many types of plastics, and so far there are about 300 types of plastics put into production in the world. There are many classification methods for plastics, and there are two commonly used ones:   1. According to the different properties of plastics after heating, they are divided into thermoplastic and thermosetting plastics:   The molecular structure of thermoplastic is linear, which softens or melts when heated, and can be molded into a certain shape. After cooling, it becomes hard again. After being heated to a certain extent, it softens again, and after cooling, it hardens again. This process can be repeated multiple times. Such as polyvinyl chloride, polyethylene, polystyrene, etc. The molding process of thermoplastic is relatively simple, capable of continuous production, and has a relatively high mechanical strength, so it has developed rapidly.     The molecular structure of thermosetting plastics is a bulk structure, which also softens when heated and can be molded into a certain shape. However, when heated to a certain degree or with the addition of a small amount of curing agent, it hardens and sets, and will not soften or change shape again when heated. Thermosetting plastics, such as phenolic plastics, amino plastics, epoxy resins, etc., cannot be recycled or reused as they no longer soften when heated after processing. The molding process of thermosetting plastics is relatively complex, so continuous production is somewhat difficult. However, it has good heat resistance, is not easily deformed, and is relatively inexpensive.   2. According to their different uses, plastics are divided into general plastics and engineering plastics:   General plastics refer to plastics with high production volume, low price, and wide application range, mainly including polyolefin, polyvinyl chloride, polystyrene, phenolic plastics, and amino plastics. Many products used in people's daily lives are made of these universal plastics.   Engineering plastics are plastics that can be used as engineering structural materials and as substitutes for metal manufacturing of machine components. For example, polyamide, polycarbonate, polyoxymethylene, ABS resin, polytetrafluoroethylene, polyester, polysulfone, polyimide, etc. Engineering plastics have the characteristics of low density, high chemical stability, good mechanical properties, superior electrical insulation, and easy processing and molding. They are widely used in industries such as automobiles, electrical appliances, chemicals, machinery, instruments, and meters, as well as in space navigation, rockets, missiles, and other fields.   There are many types of plastic packaging containers (such as plastic bottles), which can usually be classified according to the following methods:   (1) According to chemical composition, plastic containers can be divided into PE, PP, PS, PVC, PET, NY, PC, PF, UF containers, etc. (2) According to the molding method, plastic containers can be divided into blow molding, injection molding, extrusion molding, compression molding, thermoforming, rotary molding, winding molding containers, etc. (3) Plastic containers can be divided into box type, bottle type, bag type, hose type, etc. according to their shape and purpose.  

All industries require plastic bottle packaging. As consumers, whether it is plastic bottles for food packaging or plastic bottles for daily necessities packaging, their bottle bodies are printed with symbols representing plastic bottle packaging materials such as PVC, PET, PP, and PE. What are the specific meanings of these signs? What are their specific uses? What should consumers pay attention to when they see these signs?   PVC plastic bottle:   The scientific name of PVC is polyvinyl chloride, and the PVC plastic material is in a slightly yellow semi permeable membrane state with a glossy finish. Due to the poor stability of PVC plastic bottles to light and heat, PVC bottles cannot be heated at high temperatures or exposed to sunlight outdoors to ensure the quality of the packaged items and the safety of human use. PVC bottles are suitable for packaging all products except for food packaging. So consumers can identify whether this bottle is made of PVC material through a simple method: fold the bottle and if there is whitening at the fold, it is a PVC bottle.     PET plastic bottle:   The PET chemical name is polyethylene terephthalate plastic, and the PET plastic raw material is in a highly crystalline state of milky white or light yellow. Compared to PVC material, PET has excellent optical properties and weather resistance, good non-toxic stability, but is not resistant to hot water immersion or alkali. PET bottle packaging is suitable for packaging products in the food, pharmaceutical, cosmetics, and other industries. Distinguishing PET bottles is very simple. Use a lighter to light the bottle body. If it emits a comfortable smell, it is a PET bottle. If it emits a pungent smell, it is not a pure PET bottle.   PP plastic bottle:   The name of PP is polypropylene, and PP plastic raw materials are in a semi crystalline state. PP material is a commonly used lightweight plastic with excellent electrical properties. It is used as a high-frequency insulation material resistant to moisture and heat, and is suitable for packaging in the automotive industry and daily necessities. In terms of food packaging, PP bottles cannot be used for barrier packaging of carbonated beverages. So consumers should pay attention!   PE plastic bottle:   PE, also known as polyethylene, is the world's largest synthetic resin and the most consumed plastic packaging material. PE material has advantages such as low water absorption, insolubility in water, resistance to moisture, and insulation properties. Therefore, it can be used not only in food and drug packaging but also in the construction industry.

When discussing the performance characteristics of sealed cans, it's essential to highlight their relevance within the realm of Plastic Household Products, where materials and functionality play a pivotal role. For instance, among the common materials used in sealed cans and fresh-keeping boxes, PC, PE, and PP plastics are widely favored, reflecting the practicality and versatility of Plastic Household Products in daily life. Transparency is a key feature that enhances usability. Many sealed cans and fresh-keeping boxes are crafted from transparent or semi-transparent materials, allowing users to identify contents at a glance. This characteristic is particularly evident in items like a Clear Plastic Tray, which not only serves as a storage solution but also exemplifies how transparency simplifies organization. A Clear Plastic Tray, for example, can be used alongside sealed cans to categorize items, combining visibility with functionality.   In terms of space optimization, the design of sealed cans often aligns with the principles of efficient storage, similar to what one might expect from a Plastic Organizer. Various sizes of sealed cans can be neatly stacked or arranged, complementing a Plastic Organizer’s role in maintaining order. This synergy ensures that kitchens and pantries remain tidy, with each container serving a specific purpose in organizing food items or household essentials.   By integrating these features, sealed cans demonstrate their value within the broader context of Plastic Household Products, while elements like a Clear Plastic Tray and the organizational benefits of a Plastic Organizer further enhance their practical appeal in everyday use.

In the daily task of maintaining a clean and tidy home environment, a set of high-quality and efficient cleaning tools is crucial. The plastic sweeping bed brush, broom, dustpan set that we are going to introduce today is a magical tool that can meet your cleaning needs in multiple scenarios, from the bedroom to the living room, from the desktop to the car, making cleaning work easy and convenient.   1、 Multi functional bed sweeping brush, caring for every inch of the bed The bed sweeping brush in this set is ingeniously designed and specifically designed for bed cleaning. Its soft and fine bristles can penetrate deep into the fiber gaps of the bedding, easily sweeping away the hidden dandruff, dust, and hair. Whether it's pure cotton sheets, plush blankets, or fluffy quilts, the bed sweeping brush can gently treat them, cleaning the bed clean without damaging the fabric, creating a fresh and healthy sleeping environment for you. Simply cleaning the bed with it every day can help you bid farewell to dust and impurities that may cause allergies, and sleep peacefully every night.     2、 Flexible broom, sweeping the floor of the home The design of the broom fully considers various needs for household floor cleaning. Its brush head adopts a reasonable angle and moderate width, which can clean narrow corners, spacious living rooms, and bedroom floors flexibly and freely. The bristles are tough and elastic, which can effectively clean up various types of garbage such as dust, debris, and hair on the ground, and are not easy to shed, avoiding the trouble of secondary cleaning. Paired with an ergonomic long handle design, users can easily operate without excessive bending, greatly reducing fatigue during the cleaning process. Whether it's wooden floors, ceramic tile floors, or short haired carpets, this broom can demonstrate excellent cleaning effects, keeping your home floor spotless.   3、 Convenient dustpan, precise storage of garbage The dustpan, which complements the broom, further embodies the humanized design concept. Its opening is wide and the edges are close to the ground, making it easy to collect the garbage swept over by the broom without leaving any dust at the corners. The internal space design of the dustpan is reasonable, which can accommodate a large amount of garbage and reduce the frequency of frequent dumping. Moreover, it is equipped with a convenient handle, making it more stable and convenient for dumping garbage. The unique windproof design ensures that even when used in windy environments, garbage will not be blown away, making cleaning work more efficient and orderly.   4、 Multi scenario application, cleaning is everywhere This set of plastic bed sweeping brushes, brooms, and dustpans is not limited to indoor use. It is also very suitable for cleaning the interior of cars. A bed sweeping brush can be used to clean dust, snack debris, and hair from car seats, keeping the interior of your beloved car clean at all times. Broom and dustpan can quickly clean the dirt and debris on the car floor mats, creating a clean and comfortable atmosphere for your driving space. In addition, when there is dust that needs to be cleaned on the desktop, sofa, and other places, this tool can also be of great use. Its compact and flexible design allows it to easily handle various small-scale cleaning tasks, truly achieving comprehensive cleaning without blind spots.  

In the small world of the kitchen, every tool carries a unique mission, and the plastic vegetable washing and draining basket is undoubtedly a powerful assistant. It has brought great convenience to daily vegetable washing work with its simple and practical design and excellent functions, becoming an indispensable kitchen item for many families. Clever design, efficient drainage     The design of the plastic vegetable washing and draining basket is unique and usually adopts a double-layer structure. The fine filter on the upper layer can accurately block the sediment and impurities on the surface of vegetables, ensuring that every leaf and root can be cleaned thoroughly. The lower water receiving part is responsible for collecting and draining water, allowing vegetables to quickly transform from a wet state to a refreshing and cooking ready appearance. This layered design not only allows for seamless washing and draining of vegetables, but also avoids water stains on the kitchen countertop, keeping the kitchen clean and dry at all times. Safe material, use with confidence   When choosing a plastic vegetable washing and draining basket, the safety of the material is crucial. The high-quality plastic vegetable washing and draining basket is made of food grade environmentally friendly materials, non-toxic and odorless, and will not release harmful chemicals during use. Even if you have long-term intimate contact with various vegetables and fruits, it will not cause contamination to the ingredients, perfectly protecting the dietary health of you and your family. Its material also has good durability and stability, able to withstand the test of frequent daily use, not easily broken or deformed, accompanying you through long kitchen time. Multi functional use, expanding kitchen boundaries   Its use is not limited to washing vegetables and draining water. When making salads, it can serve as a temporary ingredient container, making it convenient for you to clean, cut, and mix various vegetables and fruits. When you need to thaw meat, place the meat in a drain basket and slowly thaw it under the tap, which not only avoids direct contact with sewage but also speeds up the thawing process. Even at family gatherings, it can be used to hold washed fruits and snacks, adding a neat and beautiful touch to the table. Lightweight and portable, easy to store   The plastic vegetable washing and draining basket is lightweight, making it easy for both the elderly and children to use. Its compact size allows for flexible movement in the kitchen without taking up too much space. When not in use, you can easily hang it on the kitchen wall or place it in a cabinet drawer. The clever storage design keeps the kitchen organized at all times.   Whether busy office workers or food enthusiasts who love cooking, plastic vegetable washing and draining baskets are an ideal choice to improve kitchen efficiency and quality. It adds convenience and comfort to your kitchen life in a simple and practical way, making every dish wash a relaxed and enjoyable experience. Come and have your own plastic vegetable washing and draining basket, and embark on a convenient journey in the kitchen!

According to the "Research Report on the Environmental Impact and Recycling of Plastic Packaging in the Food Delivery Industry (2021)", since 2015, China's food delivery industry has experienced explosive growth, resulting in an increase in plastic packaging consumption (waste) from 57000 tons in 2015 to 574000 tons in 2020. The pressure on the ecological environment caused by this should not be underestimated. The essence of plastic pollution is the leakage of plastic waste into natural environments such as soil and water bodies, which is difficult to degrade and causes environmental hazards such as soil damage and microplastics.   Can plastic pollution be solved from the plastic production end? What is the principle of plastic degradation? How is it achieved that plastic only produces water and carbon dioxide after degradation? Recently, Taizhou Huangyan Jiazheng Mold&Plastic Co., Ltd reveals the secret behind solving plastic pollution from the production end.   Within 180 days in a composting environment, it can completely decompose into water and carbon dioxide The so-called composting environment mainly refers to high temperature and high humidity. Biodegradable plastic bags can be degraded by microorganisms such as bacteria, fungi, and algae that exist in nature. Ideal biodegradable plastics have excellent performance and can be completely decomposed by environmental microorganisms after disposal, becoming a component of the carbon cycle in nature.   In terms of safety, some areas do not have composting capabilities and do not produce toxic substances such as dioxins during incineration treatment; In terms of renewability, its components, PLA and starch, are extracted from corn starch and have sustainability.

Instructions for using the pressure plate   1. Walking, running, and jumping on a finger press board: Use several finger press boards to pave a small path for the child to walk, run, or jump over. If the child is sensitive to touch, they can initially wear socks and wait until they adapt before walking barefoot.   2. Climbing on a finger press board: Use several finger press boards to pave a small path for children to climb from one end of the path to the other. They can crawl on their knees or by hand. After the child adapts to the stimulation of the finger pressure board, they can be asked to speed up their crawling speed or arrange certain competitive games, such as laying two identical paths and competing in crawling and dribbling.     3. Roll on the finger pressure board: Use multiple finger pressure boards to lay out an area and let the child lie on it and roll around freely; You can also roll the child up like sushi, allowing them to roll freely on the ground. It should be noted that this type of training stimulation is relatively strong and intense, and should be selected appropriately according to the child's level of acceptance.   The benefits of acupressure training   Due to its unique tactile stimulation, the acupressure board showed exceptionally significant effects when used as sensory training equipment. After training the skin nerves, there was a significant reduction in tactile sensitivity and dullness; Helps children control their own emotions, significantly reducing symptoms such as lack of concentration and excessive fidgeting. During the rolling process, children receive tactile stimulation throughout their body, which can also avoid sensory dysfunction in the vestibular system.