ویژگی های کیسه های پشتی / کیسه

کیسه های پشتی (همچنین به عنوان کیسه های بالش شناخته می شود) نوع کیف اصلی تولید شده توسط دستگاه بسته بندی چوب است, with the following significant features:

Simple Structure: There is a single vertical back seal, with horizontal seals at both the top and bottom ends. The overall structure is simple, requiring no complex sealing processes, making production straightforward.

کم هزینه: Due to its simplicity, the former and sealing devices required are relatively simple, resulting in lower replacement and maintenance costs. علاوه بر, this bag type offers high film material utilization, further reducing packaging costs.

High Production Speed: VFFS packing machines can achieve high speeds when producing pillow bags. Taking a common small VFFS machine as an example, production speeds can reach 60-80 bags per minute. Our machine achieves an even higher speed of 240 bags per minute, پاسخگویی به خواسته های تولید در مقیاس بزرگ.

Strong Applicability: This bag type is suitable for various product forms, whether granular or powdered products.

Features and Implementation Methods of Three-Side Sealed Bags/Four-Side Sealed Bags

Three-side sealed bags and four-side sealed bags are more functional bag types produced by automatic sachet packing machines, with the following features and implementation methods:

Features of Three-Side Sealed Bags: In addition to the top opening, the other three sides (back and two sides) are sealed, giving the bag a flatter and more regular appearance compared to the pillow bag.

Features of Four-Side Seal Bags: After forming and filling, all four sides of the four-side seal bag are heat-sealed, resulting in a very flat, block-shaped package suitable for products with high aesthetic requirements.

Good Leakproofness: The sealing method of the four-side seal bag typically provides superior airtightness compared to the pillow bag and three-side seal bag. It is especially suitable for packaging leak-prone products like powders and liquids, effectively preventing leakage during transportation and storage.

Implementation Method:

Special Former and Film Path Design: Achieving three-side and four-side seal structures requires specialized formers and film path designs. به عنوان مثال, the former may incorporate a folding device that creates gussets or pre-folds the film edges during tube formation, facilitating the creation of side seals simultaneously with the back seal or enabling subsequent sealing actions. This design must be customized for specific bag requirements.

Additional Side Sealing Action (for Four-Side Seal): For true four-side seal bags, یک عمل آب بندی جانبی اضافی به طور معمول در یک ایستگاه پس از تشکیل لوله توسط فرآیند بسته بندی کیسه ساکت استاندارد مورد نیاز است. این معمولاً شامل تجهیزات تکمیلی یا دستگاههای ادغام شده در دستگاه برای اطمینان از کیفیت و صحت مهر و موم های جانبی است.

ویژگی ها و روش های اجرای کیسه های شکل

کیسه های شکل نوعی کیسه با مشخصات مقطع ویژه ای است که توسط دستگاه های بسته بندی پودر تولید می شود, با ویژگی های زیر و روش های اجرای:

جذابیت بصری بی نظیر: سطح مقطع کیسه شکل یک شکل مشخص است, مانند گرد, بیضی شکل, قلب, شخصیت کارتونی, و غیره, به جای مستطیل استاندارد یا مربع. این شکل منحصر به فرد تأثیر بصری شدیدی را فراهم می کند, افزایش رقابت در بازار محصول.

شخصی سازی و سفارشی سازی: Shaped bags can be personalized according to different product characteristics and brand images, meeting unique customer packaging needs.

Implementation Method:

Customized Shaped Horizontal Sealing Jaws: The primary method for producing shaped bags is through the use of customized horizontal sealing jaws. These jaws not only perform sealing and cutting but their unique blade profile determines the final contour shape of the bag. Custom jaws must be designed and manufactured based on the specific bag shape requirements.

Matching with Specially Designed Film or Forming Path: In some cases, achieving optimal shaping and appearance may require specially designed film (به عنوان مثال, with specific stretch or shrink properties) or optimized forming path designs. بعلاوه, طراحی مسیر شکل ده. این طراحی تطبیق مستلزم بررسی جامع عواملی مانند خصوصیات مواد فیلم است, شکل و اندازه سابق, و ساختار فک های آب بندی شکل.