跳至主要内容

Heat sealing process


Heat sealing is the process of sealing one thermoplastic to another similar thermoplastic using heat and pressure. The direct contact method of heat sealing utilizes a constantly heated die or sealing bar to apply heat to a specific contact area or path to seal or weld the thermoplastics together. Heat sealing is used for many applications, including heat seal connectors, thermally activated adhesives, film media, plastic ports or foil sealing.

Common applications for the heat sealing process:

Heat seal connectors are used to join LCDs to PCBs in many consumer electronics, as well as in medical and telecommunication devices.

Heat sealing of products with thermal adhesives is used to hold clear display screens onto consumer electronic products and for other sealed thermo-plastic assemblies or devices where heat staking or ultrasonic welding are not an option due to part design requirements or other assembly considerations.

Heat sealing also is used in the manufacturing of bloodtest film and filter media for the blood, virus and many other test strip devices used in the medical field today. Laminate foils and films often are heat sealed over the top of thermoplastic medical trays, Microtiter (microwell) plates, bottles and containers to seal and/or prevent contamination for medical test devices, sample collection trays and containers used for food products.

Medical and fluid bags used in the medical, bioengineering and food industries. Fluid bags are made out of a multitude of varying materials such as foils, filter media, thermoplastics and laminates.

评论

发表评论

此博客中的热门博文

Reference Standard For Seal Verification of Sterilization Pouches For Medical Devices

With the increasing demand for  sterilization pouches  of medical devices, quality and safety inspection have become more and more stringent. sterilization pouches of medical devices (blister box +  tyvek roll  material,  sterilization paper bag , etc.) as a form of packaging directly in contact with the device and used to block microorganisms. No matter what form of packaging, it has two characteristics, which can meet the sterilization operation and remain sterile until the transportation conditions are used. Therefore, relevant departments began to focus on the review requirements of sterile packaging and make specific requirements for its performance and quality.   As we all know, GB/ t19633-2005 "packaging of ultimately sterilized medical devices" is one of the authoritative standards in the current sterile packaging standards. It is equivalent to iso11607-2003 "packaging of ultimately sterilized medical devices". Clarify the basic performance req...
10 条评论
阅读全文

Definition And Use Of Sterilization Or Chemical Indicator

  Sterilization indicator  tape and label   Definition: Wrinkle paper or label paper as the base material, coated with color-changing ink as sterilization indicator, back coated with pressure sensitive adhesive.  The indicating tape used for chemical monitoring outside the pressure steam  sterilization package , when reaching certain sterilization conditions 121℃, 20 minutes or 132℃, 3 minutes, the chemical indicating stripe on the back base of wrinkled paper will change from light yellow to black.   USES:   1. Used to mark whether the package has been treated by pressure steam sterilization process.   2. If the discoloration is uneven or incomplete, it may indicate that the package has not been sterilized in accordance with the conditions.   3, wrap the parcel (if no sealing tape is used).   4, sterilization information can be recorded (operator, sterilization period, item name, pot, etc.).   Chemical instruction card for...
1 条评论
阅读全文

Correctly Identify Discoloration of Chemical Indicator Cards

  01   Sterilization pouches   requirements   Why packaging   After a proper sterilization process, the apparatus in the sterilization room should be sterile, but when the apparatus is removed from the sterilization room, the outdoor air contains dust particles and microorganisms   If the device is not packaged, it will soon be contaminated   In addition, sterile items usually need to be stored for a period of time and sent to the department in need, so the equipment must be properly packaged to prevent re-contamination   Sterilization packaging  management requirements   Packaging purpose:   Extend the effect of sterilization to ensure that sterile equipment and articles can remain sterile before use.   Strict packaging requirements:   Surgical instruments use closed packaging method, generally 2 layers of packaging materials.  Closed type packaging application of special tape, tight sealing package.  ...
发表评论
阅读全文