Block bottom valve bag introduction.

Block bottom valve bag is a small size bulk packaging container, Convenient, clean and well sealed, it is currently one of the most popular packaging materials in the world.

The Block bottom valve bag, commonly known as the paste bottom bag, is a packaging bag born under the guidance of the idea of improving packaging efficiency and convenient transportation. The overall appearance of the bag is square, which is very suitable for stacking and transportation; the valve opening at the bottom is convenient for filling materials, and the sealing is simple and easy. New environmentally friendly packaging suitable for canning equipment, It can be divided into: polypropylene coated valve bag, paper-plastic composite valve bag, multi-layer paper valve bag, polyethylene blown film valve bag. For the convenience of filling, holes can be punched on the bag body to facilitate gas discharge and prevent the bag from bursting during filling.

The polypropylene coated woven Block bottom valve bag is based on the coated woven bag. The specifications and dimensions are based on customer requirements. Hot air welding technology is used. It is made into a packaging bag with top and bottom seals, or with bottom seal and top opening.

Valve port type:

Inner valve port and outer valve.

Product Features:

Full eco-friendly products, diversified materials, adapt to different product packaging requirements, meet environmental protection and export packaging requirements, suitable for food packaging requirements, exquisite printing, beautiful package shape, large packaging volume, standing packaging, suitable for automatic filling of packaging machinery .

Scope of application:

It is widely used in the packaging of powder and granular products such as chemical raw materials, new building materials, high-tech materials, pharmaceutical additives, food additives, starch, milk fat, plastics, etc.

How to classify the square bottom valve pocket according to the type of valve port?

It can be divided into inner valve pocket and outer valve pocket (including extended valve pocket and pocket).Anhui Tianda environmental protection new materials Co., Ltd. mainly produces plastic raw materials such as bottom valve bags, internally coated woven bags, externally coated woven bags, color printing woven bags, paper plastic three in one bags, flexible container bags, PE bags, FFS films, mesh bags, plastic woven bags, polypropylene, etc.Contact: Shen Le'an (responsible for domestic and overseas business)QQ:728796526Mobile / wechat: 13956286204Email: sla0901@td -sf.com

Can the pocket valve port of PP square bottom valve use non-woven fabric?

The valve port on the bottom valve pocket of our company can be made of non-woven fabric. Anhui Tianda environmental protection new materials Co., Ltd. mainly produces square bottom valve bags, internally coated woven bags, externally coated woven bags, color printing woven bags, paper plastic three in one bags, flexible container bags, PE bags, FFS films, mesh bags, plastic woven bags, polypropylene raw materials, etc. Contact: Shen Le'an (responsible for domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Email: sla0901@td -sf.com

How to seal the PP square bottom valve pocket?

A filling port with automatic sealing function is designed on one side of the upper bottom of the square bottom valve pocket. The product will use the filling pressure when filling materials to seal the valve port, so as to form a sealed and moisture-proof sealing port. Anhui Tianda environmental new materials Co., Ltd. mainly produces square bottom valve bags, internally coated woven bags, externally coated woven bags, color printing woven bags, paper plastic three in one bags, flexible container bags, PE bags, FFS films, mesh bags, plastic woven bags, polypropylene raw materials, etc.

What is the application scope of PP square bottom valve pocket?

PP square bottom valve pocket is suitable for cement, polyvinyl chloride, fertilizer, epoxy resin, stone powder, starch, calcium chloride, plastic particles, putty powder, formic acid, coating, methyl hydroxypropyl, activated carbon, sintered corundum, interface agent, gypsum powder, barite powder, mica powder, zinc oxide, flame retardant, sodium benzoate, feed, dry powder mortar, building materials and hardware, cement, soybean meal, rice Flour, citric acid, mineral powder, cellulose, nano materials and other packaging industries. Contact: Anhui Tianda Environmental Protection New Material Co., Ltd. mainly produces handbags, insulation bags, square bottom valve bags, inner coated woven bags, outer coated woven bags, color printed woven bags, paper-plastic three-in-one bags, flexible container bags, PE Mainly include bags, FFS film, mesh bags, plastic woven bags, and polypropylene materials. Contact: Lean Shen (responsible for domestic and overseas business) QQ:728796526 Mobile/WeChat: 13956286204 Email: sla0901@td-sf.com (responsible for domestic and overseas business)

What’s the temperature of cement out of warehouse?

Depanding on the cement production process and equipment ,the cement outlet temperature is also different, generally between 50℃-100℃。 Contact: Anhui Tianda Environmental Protection New Material Co., Ltd. mainly produces handbags, insulation bags, square bottom valve bags, inner coated woven bags, outer coated woven bags, color printed woven bags, paper-plastic three-in-one bags, flexible container bags, PE Mainly include bags, FFS film, mesh bags, plastic woven bags, and polypropylene materials. Contact: Lean Shen (responsible for domestic and overseas business)QQ:728796526Mobile/WeChat: 13956286204Email: sla0901@td-sf.com (responsible for domestic and overseas business)

What's the temperature of cement bag out of the warehouse?

The cement bag production process and equipment level are different, and the cement bag outlet temperature is also different, generally between 50 ℃ - 100 ℃.Contact: Anhui Tianda Environmental Protection New Material Co., Ltd. mainly produces handbags, insulation bags, square bottom valve bags, inner coated woven bags, outer coated woven bags, color printed woven bags, paper-plastic three-in-one bags, flexible container bags, PE Mainly include bags, FFS film, mesh bags, plastic woven bags, and polypropylene materials. Contact: Lean Shen (responsible for domestic and overseas business)QQ:728796526Mobile/WeChat: 13956286204Email: sla0901@td-sf.com (responsible for domestic and overseas business)

How does the square bottom valve pocket solve the exhaust problem during cement filling?

Make a needle hole every 6mm in the longitudinal direction of the laminated cloth, and make a needle hole every 8mm in the horizontal direction, the conical needle is used as the punching needle, and the exhaust hole is punched from the inside to the outside. The diameter of the needle is 2mm or 1.5mm. Contact: Anhui Tianda Environmental Protection New Material Co., Ltd. mainly produces handbags, insulation bags, square bottom valve bags, inner coated woven bags, outer coated woven bags, color printed woven bags, paper-plastic three-in-one bags, flexible container bags, PE Mainly include bags, FFS film, mesh bags, plastic woven bags, and polypropylene materials. Contact: Lean Shen (responsible for domestic and overseas business)QQ:728796526Mobile/WeChat: 13956286204Email: sla0901@td-sf.com (responsible for domestic and overseas business)

How to calculate the mass per unit area of square bottom valve pocket?

At the upper and lower corners of any bag, 5-8 cm away from the bag edge, take two circular samples with an area of 0.01 square meters with a sampler, take the arithmetic mean of the two samples, and then divide by 0.01 as the mass per unit area of the square bottom valve pocket. Contact: Anhui Tianda Environmental Protection New Material Co., Ltd. mainly produces handbags, insulation bags, square bottom valve bags, inner coated woven bags, outer coated woven bags, color printed woven bags, paper-plastic three-in-one bags, flexible container bags, PE Mainly include bags, FFS film, mesh bags, plastic woven bags, and polypropylene materials. Contact: Lean Shen (responsible for domestic and overseas business)QQ:728796526Mobile/WeChat: 13956286204Email: sla0901@td-sf.com (responsible for domestic and overseas business)

What are the requirements for transportation and storage of cement bags?

During transportation and storage, the cement packing bag shall not be affected with damp, high temperature and direct sunlight shall be avoided, and hard objects shall be prevented from scratching the bag during loading and unloading. The storage period of cement packaging bag shall not exceed 6 months from the date of production. If it exceeds 6 months, it shall be inspected again. Contact person: Shen Le'an (responsible for domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Mailbox :sla0901@td-sf.com

How to judge the firmness of the plastic woven square bottom valve bag for packing cement?

The plastic woven square bottom valve bag is used to pack the cement, and the dropping times should not be less than 6 times. Contact person: Shen Le'an (responsible for domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Mailbox :sla0901@td-sf.com

How much centigrade is the suitable temperature for packing cement?

For packing cement, the suitable temperature should not be higher than 100 ℃. Contact person: Shen Le'an (responsible for domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Mailbox :sla0901@td-sf.com

What is the tensile strength of the plastic block bottom valve bag?

Tensile strength of the plastic block bottom valve bag not less than 500N / 5cm in warp direction, 450N / 5cm in weft direction and 400N / 5cm in bottom direction. Contact person: Shen Le'an (responsible for domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Mailbox :sla0901@td-sf.com

What are the quality requirements for the appearance of cement square bottom valve bag?

The appearance of the cement square bottom valve pocket should be flat, no crack, no degumming, no sticking, and the printing should be clear and complete. Contact person: Shen Le'an (in charge of domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Mailbox :sla0901@td-sf.com

Can your PP square bottom valve pocket be used for export?

Our company has the right of self import and export, which can be exported directly. Of course, you can also purchase from us and export through your company. Our company exports PP square bottom valve pocket for cement to Africa, Nigeria, Mongolia, Russia and other countries. Contact person: Shen Le'an (in charge of domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Mailbox :sla0901@td-sf.com

What equipment do you use to produce block bottom valve wpp sack?

A new generation of pocket bag making machine with square bottom valve from W & H company, Germany. Contact person: Shen Le'an (in charge of domestic and overseas business) QQ:728796526 Mobile / wechat: 13956286204 Mailbox :sla0901@td-sf.com

Is the valve mouth of your square bottom valve bag a double-sided coated woven fabric or a non-woven fabric?

It can be a double-sided coated woven fabric or a non-woven fabric. Contact: Shen Lean (responsible for domestic and overseas business) QQ:728796526 Mobile/WeChat: 13956286204 Mailbox: sla0901@td-sf.com