Spouted Sachet Design for Precise Ketchup Dispensing
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Solution Overview
Problem
Current ketchup sachets face issues such as difficulty in precise dispensing, inconsistent flow rates, leakage due to material reactivity, and manufacturing challenges, including high production costs and equipment strain, especially when adapting to spouted designs.
Innovation Solution
A spouted sachet design featuring a chamber with a neck having a lower funnel portion and an upper spout portion, made from materials like aluminum foil and polymer, with specific dimensions and graphics for controlled tearing, and a method of manufacturing that includes orienting OPP film for vertical or horizontal tearing, and reducing seal areas to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If spouted sachet design is implemented to improve dispensing precision and control flow rate, then consumer satisfaction with dispensing precision improves, but manufacturing complexity and equipment strain increase
Solution Approach 1:
The sachet is divided into distinct functional zones: a chamber for holding product, a neck region with tapered lower funnel portion, and an upper spout portion with controlled opening. This segmentation allows each region to perform its specific function optimally while simplifying the overall manufacturing process by using standard sealing techniques on well-defined zones.
Solution Approach 2:
The spout dimensions are carefully controlled with specific parameters: the upper spout portion has a cross-sectional area of 0.02 to 0.12 in.², and the neck has specific length and diameter ratios. These parameter specifications enable consistent dispensing performance while providing clear manufacturing targets that simplify production control.
2Ease of operation
If spouted sachet design is used to control tearing propagation and improve opening consistency, then dispensing control improves, but manufacturing precision requirements increase
Solution Approach 1:
The neck region features asymmetric geometry with a tapered lower funnel portion that transitions to the upper spout portion. This asymmetric design creates a natural stress concentration zone that guides tear propagation consistently, making the opening process more predictable even with variations in consumer application force.
Solution Approach 2:
The sachet is pre-formed with the spout structure and sealed edges positioned at predetermined locations before the consumer opens it. The neck region is pre-configured with specific dimensional relationships that will naturally guide the tear along the desired path, eliminating the need for precise real-time control during opening.
3Reliability
If seal areas are reduced to prevent leakage and improve hermetic sealing, then product protection improves, but sealing force requirements during manufacturing increase
Solution Approach 1:
The sealing strategy applies local quality by concentrating sealing force at specific critical locations: the bottom seal, side seals, and top seal are positioned to create hermetic barriers at key points. The seal areas are optimized to be sufficient for reliable sealing while minimizing total sealed surface area, and the spout structure is designed so that sealing occurs at well-defined locations rather than across large surfaces.
4Loss of substance
If spouted sachet design is implemented to improve dispensing control and reduce product waste, then flow rate control improves, but packaging material efficiency decreases
Solution Approach 1:
The spout structure extracts only the necessary opening function from the sachet body. By creating a focused upper spout portion with controlled cross-sectional area (0.02 to 0.12 in.²), the design enables precise product dispensing while minimizing the amount of packaging material required at the critical dispensing interface, thereby reducing both material usage and product waste.
Data Source
AI summary
Described herein are a packaged food product and methods of making and using the packaged food product. In some embodiments, the packaged food product comprises a spouted sachet or packet containing one or more flowable food products, such as ketchup or other condiments.