Introduction

For liquid products like shampoo and other hair care product lines, sachet packaging in the personal care and cosmetic industry is both convenient and economical. Small, affordable, and lightweight, sachets allow brands to reach more markets at a lower packaging cost. Sophisticated Liquid Packing Machines and Multi-Function Packaging Machines are what modern factories rely on for precise filling, leak-proof closure, flip top caps, and hygienic manufacturing.

These machines are specifically made to pack viscous and semi-viscous liquids, filling every sachet with accurate quantities of shampoo, conditioner, or liquid soap. Large-scale production as well as small-scale batch runs benefit from the right horizontal liquid filling machine and packaging machinery to deliver quality and consistency. Among the leading manufacturers in this sector is King Pack, which supplies high-speed, customized solutions for cosmetic and personal care packing lines with speed, dependability, and cleanliness through every run.

What is a Liquid Shampoo Sachet Packaging Machine?

A liquid shampoo sachet packaging machine is a fully integrated system designed to fill and seal unit-dose shampoo sachets automatically. It combines multiple functions—film forming, liquid dosing, sealing, and cutting—into a single streamlined process. This machine often includes features like a servo control motor, PLC control system, and Control with PLC and HMI, enhancing consistency and minimizing human error. It also have conveyor belt for smooth shampoo filling process.

Because of its affordability and ease of use, sachet packaging has become extremely popular in the cosmetics and personal care sector. Customers can try new products without committing to full-sized plastic bottles thanks to the small shampoo bags or Liquid Shampoo Bag format. Sachets save manufacturers money on shipping and material waste.

Applications

• Liquid shampoos and conditioners (like an 8ml shampoo sachet for travel kits)
• Herbal or medicated hair oils
• Liquid soaps and shower gels
• Other hair care product samples or personal care liquids

Automation in sachet packaging enhances speed, hygiene, and consistency, ensuring every filled sachet maintains the customer satisfaction rate expected in modern production lines.

How Do Liquid Shampoo Sachet Packaging Machines Work?

The precise automated process used by a liquid shampoo sachet packaging machine guarantees that each pack is filled precisely and sealed tightly. Typically, the procedure includes these crucial phases:

Step-by-Step Workflow of Sachet Packaging

1. Film Unwinding The process starts with a film roll (often PET/PE laminate or foil material) mounted on a reel holder. The film is unwound and guided through tension rollers to ensure smooth feeding.
2. Sachet Forming The film passes through a forming collar that shapes it into the desired sachet configuration (pillow, 3-side, or 4-side seal) with a mouth size of 50mm to ensure precise liquid filling.
3. Liquid Dosing A precision dosing pump injects a measured amount of shampoo into each formed sachet. This stage is critical for maintaining consistent volume and avoiding product wastage.
4. Sealing Heat-sealing bars or ultrasonic sealers close the sachet edges. The sealing temperature, time, and pressure are precisely controlled to create a leak-proof seal, even for viscous liquids.
5. Cutting and Stacking

The sachets are then cut into single packs or strips of three or more after being sealed. Sachets can also be counted, stacked, or batched with the system automatically to be easily sociable to collect.

In the process, hygienic stainless steel construction is used to make sure that the shampoo is not affected. Operation under PLC control can be easily manipulated via digital interface, with operators easily changing parameters such as fill volume, temperature, and speed.

Semi-Automatic vs Fully Automatic Machines

For growing brands aiming to increase productivity, a fully automatic shampoo sachet liquid packing machine for liquid products from King Pack offers long-term efficiency, speed, and quality assurance.

Types of Liquid Shampoo Sachet Packaging Machines

Choosing the right machine depends on your production capacity, sachet design, and budget. The most common types of shampoo sachet packaging machines include:

1. Vertical Form Fill Seal (VFFS) Machines

A shampoo sachet is a common application of the VFFS liquid packing machines. They are used in a vertical arrangement whereby the film forming process, filling, labeling stickers and sealing happen one after the other. Such machines are small, quick, and can work out viscous liquids accurately.

Perfect fit: medium and large cosmetic producers that need flexibility and large production.

2. Horizontal Sachet Machines

Horizontal models make sachets, and the film runs horizontally, allowing it more flexibility in designing. Such machines are applicable in manufacturing special packaging designs and individual pouch designs.

Best suited to: brands that need to have innovative sachet shapes or high-end cosmetic packaging.

3. Multi-Lane Sachet Machines

A multi-lane sachet liquid packing machine allows a production in multiple lanes at the same time, increasing the production rates. The lanes operate in isolation with several sachets being filled and wrapped at the same time.

Applicable in: large-scale personal care product manufacturers that require bulk production at a high rate.

 Comparison:

King Pack provides both single- and multi-lane sachet machines, customizable according to film type, sachet width, and advance gel filling system to prevent dripping.

Construction and Components of Sachet Packaging Machines

A modern shampoo sachet packaging system is a combination of advanced mechanical and electronic modules designed for reliability, hygiene, and precision. The key components include:

• Film Roll Holder – Feeds the packaging film smoothly into the forming unit.
  
• Sachet Former – Shapes the film into sachets, maintaining uniform dimensions.
• Liquid Dosing Pump—Depending on the viscosity of the product, the liquid dosing pump can be either piston, peristaltic, or gear-based. It measures shampoo amounts accurately.
  
• Sealing Unit – Applies heat or pressure to seal sachet edges securely.
  
• Cutting System – Slices the film into individual sachets or strips.
  
• PLC Control Panel – Digital interface for adjusting parameters, speed, and production count.

Packaging Materials: 

PET/PE laminates, aluminum foil laminates, and eco-friendly biodegradable films.

Optional Add-ons: 

Batch coding systems, tear notches, perforation, date printing, and nitrogen flushing for extended shelf life.

King Pack’s shampoo sachet packaging machines are built using food-grade stainless steel, ensuring compliance with GMP and CE standards while maintaining aesthetic, hygienic, and durable operation.

Benefits of Using Liquid Shampoo Sachet Packaging Machines

Adopting a liquid shampoo sachet packaging machine offers numerous benefits for modern production lines:

1. Precision and Consistency

By eliminating variations and ensuring consistent sachet fill levels, automated dosing improves customer satisfaction while cutting down on product waste.

2. Improved Safety and Hygiene

Closed systems prevent external contamination. King Pack’s machines are easily cleaned in between production runs and use sanitary contact parts.

3. High-Speed and Cost Efficiency

Automatic sachet packaging minimizes labor costs while achieving faster cycle times. A multi-lane sachet machine can produce thousands of sachets per hour, helping companies scale without proportional increases in manpower.

4. Versatile Applications

These devices are appropriate for shampoos, conditioners, lotions, and other comparable cosmetic products because they can handle a variety of liquid viscosities and packaging materials.

5. Professional branding image

Neat, well-sealed sachets with batch codes and tear notches improve visual appeal and consumer trust—key elements for competitive cosmetic markets.

What to Consider Before Buying a Liquid Shampoo Sachet Packaging Machine

Before purchasing a shampoo sachet packaging machine, it’s essential to evaluate the following factors to ensure you select equipment that meets your business needs:

1. Production Capacity: Determine your required output (sachets per hour) to choose between single-lane or multi-lane configurations.
   
2. Product Compatibility: Consider viscosity and formulation. Some shampoos may require heated filling or piston-type pumps.
   
3. Packaging Material: Choose compatible film types—laminated PET/PE, foil, or biodegradable film—for durability and seal strength.
   
4. Machine Automation Level: You can select between semi-automatic or fully automatic models depending on your production scale.
5. Cost and ROI: Balance initial investment with long-term operational savings.
6. After-Sales Support: Reliable technical support and spare part availability are vital. King Pack offers global after-sales service and customization support.
7. Energy Efficiency: PLC controls and servo-driven motors are used in modern machinery to reduce power consumption. A well-planned purchase ensures smooth integration into your production line and consistent output quality.
   

Mintenance and Troubleshooting Tips

Proper maintenance extends the machine’s lifespan and minimizes downtime. Here are essential maintenance and troubleshooting practices:

Routine Maintenance

• Clean all liquid contact parts daily to avoid residue buildup.
• Lubricate mechanical joints regularly.
• Inspect sealing bars, servo motor for wear or uneven heat distribution.
• Replace filters and check dosing pumps periodically.

King Pack’s equipment is engineered with user-friendly diagnostics and alarm systems, helping operators identify and correct issues quickly.

Conclusion

Investing in the right Liquid Packing Machine or shampoo packaging equipment is key for brands wanting consistency, hygiene, and efficiency. Whether you need Horizontal Liquid Filling and Sealing Machine, Multi-Lane Liquid Packing Machines, or smaller systems for small spout pouches and pump head bottles, there are scalable solutions for every need.

With advanced control systems (servo, PLC), accurate filling heads, photoelectric tracking system and high-quality construction, liquid packing machine can deliver reliable results. Choose equipment that aligns with your production volumes, brand image, and sustainability goals—and your operation can reach higher productivity with fewer errors and better customer satisfaction.