La description
The so-called glass water is also called wiper. It is a name for
car windshield cleaning fluid. Glass water is mainly composed of
water, alcohol, ethylene glycol, corrosion inhibitor and various
surfactants. It has the functions of antifreeze, wetting,
penetration, solubilization and decomposition of dirt. According to
different antifreeze temperatures, glass water is generally divided
into summer type, four seasons universal type and antifreeze type.
According to different concentrations, glass water is concentrated
type and non concentrated type. No matter which type of glass
water, the production process is similar, but the difference is the
production formula.
The glass water self-supporting suction nozzle bag is composed of a
suction nozzle and a self-supporting bag. The self-supporting bag
is composed of packaging materials, and the suction nozzle is a
bottle mouth made of plastic.
Generally, it is used to package liquids, such as soybean milk, soy
sauce, vinegar, fruit juice, beverage, laundry liquid, milk, etc.
As the suction nozzle of the suction nozzle bag has various forms,
there are long nozzles for jelly, fruit juice and beverage, as well
as suction nozzles for washing products. With the continuous
improvement, development and application of nozzle bags, most
washing liquids and softeners in Japan and South Korea are packaged
in nozzle bags, which are loved by foreign friends. This is the
rhythm of the gradual transfer of plastic packaging bags to
self-supporting suction nozzle bags. Northern winter is cold,
Baijiu is loved by the northern people, and it's a little bit
stronger and stronger. If people use the soft package with long
mouth to make the package, it is convenient for people working in
the field to sprinkle with body temperature or warm with hot water,
which is convenient for drinking. Nowadays, the advertising
industry is developing rapidly. If we make full use of the
advantages of convenient printing and good printing quality of
flexible packaging, we can print advertisements on the
self-supporting suction nozzle bag, which is easy to carry, widely
spread and has the benefit of killing two birds with one stone.
So how is the self-supporting nozzle bag made?
The suction nozzle bag is composed of suction nozzle and
self-supporting bag. Each link has high requirements for the
process. If it is not mastered well, unqualified products will
appear, and problems such as bag expansion, bag breakage and
leakage will appear in the process of use. In order to avoid this
situation, in the production of self-supporting bags, attention
must be paid to the links such as punching, placing the bottom of
the bag and heat sealing at the bottom. In particular, the joint
part of the fourth layer and the second layer of the
self-supporting bag is particularly prone to bag breakage. The
horizontal sealing knife is not enough. Heat sealing knives should
be added, and heat sealing should be strengthened in some parts. In
addition, the self-supporting bag with mouth shall have good
opening performance. When making the bag, the static electricity on
the surface shall be removed to avoid adsorption between the bag
and the bag, which is not conducive to the bag taking by the mouth
sealing machine.
At present, there are two methods of self-supporting bag suction
nozzle in China: manual suction nozzle and thermal packaging
suction nozzle. The temperature is transmitted to the mouth through
heat conduction to melt the mouth and weld it with the PE sealing
layer of the bag.
Requirements for bag making process of suction nozzle bag
1. Heat sealing temperature
The factors to be considered when setting the heat sealing
temperature are: first, the characteristics of the heat sealing
material; Second, film thickness; The third is the number of hot
sealing and pressing and the size of heat sealing area. Generally,
when the number of hot pressing times of the same part is more, the
heat sealing temperature can be set lower appropriately.
2. Heat seal pressure
The manufacturer of nozzle bag must apply appropriate pressure
during heat sealing to promote the adhesion of heat cover
materials. However, if the pressure is too high, the molten
material will be extruded, which will not only affect the flatness
of the bag, fault analysis and troubleshooting, but also affect the
heat sealing effect of the bag and reduce the heat sealing
strength.
3. Heat sealing time
Heat sealing time is not only related to heat sealing temperature
and pressure, but also related to the performance of heat sealing
materials, heating methods and other factors. The specific
operation shall be adjusted during actual commissioning according
to different equipment and materials.
4. Heating mode
The heating methods of heat sealing knife during bag making heat
sealing can be divided into two categories: unilateral heating and
bilateral heating. Obviously, the heating mode on both sides is
more efficient and practical than that on one side.
There are many problems in the actual production of packaging bags,
but there are mainly two prominent problems: one is liquid leakage
or air leakage when holding goods; Second, the bag shape is uneven
and the bottom seal is asymmetric in the process of bag making.
Therefore, how to select materials and adopt better process
operation mode plays a decisive role in improving the overall
quality of vertical bags.
| Pays: |
China |
| N ° de modèle: |
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| Prix FOB: |
( Negotiable ) (Negotiable)
Obtenir le dernier prix
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| Localité: |
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| Prix de commande minimale: |
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| Commande minimale: |
500 Kilogram |
| Packaging Detail: |
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| Heure de livraison: |
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| Capacité de Fournir: |
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| Payment Type: |
PayPal |
| Groupe de produits : |
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