Research Article

Material Properties Analysis of TPU 45A, 65A, and 85A for 3D Printed Clothing in Fashion Design: A Comparative Study

Muhammad Ilias Hossen* and Chaoxia Wang

College of Textile Science and Engineering, Ministry of Education Jiangnan University, China

Submission: March 10, 2024;Published: April 17, 2024

*Corresponding author: Muhammad Ilias Hossen, College of Textile Science and Engineering, Ministry of Education Jiangnan University, China

How to cite this article: Muhammad Ilias H, Chaoxia W. Material Properties Analysis of TPU 45A, 65A, and 85A for 3D Printed Clothing in Fashion Design: A Comparative Study. Curr Trends Fashion Technol Textile Eng. 2024; 9(1): 555755. DOI: 10.19080/CTFTTE.2024.09.555755

Abstract

3D printing technology has gained significant attention in the fashion industry due to its potential for customization, sustainability, and design innovation. One of the key materials used in 3D printing for clothing is thermoplastic polyurethane (TPU), which offers a balance between flexibility, durability, and aesthetics. This paper presents a comparative study of three different TPU grades, namely TPU 45A, TPU 65A, and TPU 85A, focusing on their material properties and suitability for 3D printed clothing in fashion design. The study examines aspects such as printability, mechanical properties, comfort, and aesthetics to provide valuable insights for fashion designers and researchers in selecting the appropriate TPU grade for 3D printed clothing applications.

Keywords: 3D printing; Thermoplastic Polyurethane; Material Properties; 3D Printed Clothing; Fashion Design

Introduction

3D printing technology has revolutionized various industries, including fashion design, by enabling the creation of complex and customized products with ease [1]. In the realm of fashion, 3D printing offers numerous possibilities for innovative clothing designs, personalized garments, and sustainable manufacturing [2]. To fully utilize the potential of 3D printing in fashion, it is crucial to select suitable materials that exhibit the desired properties for clothing applications. One such material that has gained attention in recent years is thermoplastic polyurethane (TPU), known for its flexibility, durability, and aesthetic appeal [3]. However, there exist different TPU grades, each with its own unique characteristics, making it essential to understand their material properties and suitability for 3D printed clothing.

Background

TPU is a versatile material widely used in various industries, including automotive, footwear, and medical applications [4]. Its exceptional elasticity, strength, and resistance to abrasion make it an attractive choice for 3D printed clothing as well [5]. By utilizing 3D printing technology, fashion designers can leverage the benefits of TPU to create garments with intricate designs, customizable fit, and enhanced functionality [6]. However, the selection of the appropriate TPU grade is critical to ensure optimal performance and meet the specific requirements of 3D printed clothing in fashion design.

Objectives

The primary objective of this study is to conduct a comparative analysis of three TPU grades, namely TPU 45A, TPU 65A, and TPU 85A, in the context of 3D printed clothing for fashion design. The study aims to evaluate and compare their material properties, focusing on printability, mechanical performance, comfort, and aesthetics. The insights gained from this analysis will assist fashion designers and researchers in making informed decisions regarding the selection of TPU grades for 3D printed clothing applications.

Scope and significance of the study

The scope of this study encompasses an in-depth analysis of TPU 45A, TPU 65A, and TPU 85A, specifically tailored to their application in 3D printed clothing for fashion design. The study focuses on key material properties, including printability, mechanical performance, comfort, and aesthetics, to provide a comprehensive understanding of the suitability of each TPU grade. The findings of this study will contribute to the knowledge base of materials selection in the fashion industry, enabling designers to optimize their 3D printing processes and create garments that meet both functional and aesthetic requirements.

Literature Review

3D Printing in Fashion Design

The integration of 3D printing technology in fashion design has opened up new possibilities for creative expression and customization [7]. With 3D printing, designers can transcend the limitations of traditional manufacturing techniques and explore complex geometries, intricate patterns, and personalized designs [8]. The ability to produce garments on-demand and reduce waste makes 3D printing an attractive option for sustainable fashion production [9]. However, the material selection plays a crucial role in determining the overall performance and aesthetic appeal of 3D printed clothing.

Thermoplastic Polyurethane (TPU) for 3D Printing

Thermoplastic polyurethane (TPU) is a class of polymers that exhibits excellent mechanical properties, including flexibility, elasticity, and impact resistance [10]. It is commonly used in applications that require a balance between durability and softness, such as in sports equipment, footwear, and clothing [11]. TPU possesses inherent characteristics that make it suitable for 3D printing, including its ability to be melted and solidified repeatedly without significant degradation of properties [12]. The versatility of TPU allows for the creation of functional and aesthetically pleasing 3D printed clothing.

Material Properties of TPU for Clothing Applications

When considering TPU for clothing applications, several material properties are of particular importance. These properties include printability, mechanical performance, comfort, and aesthetics. Understanding these properties is crucial for selecting the appropriate TPU grade for 3D printed clothing.

Previous Studies on TPU 45A, 65A, and 85A

Several studies have investigated the material properties of TPU grades, including TPU 45A, TPU 65A, and TPU 85A, in various applications. However, limited research has specifically focused on their suitability for 3D printed clothing in fashion design. Therefore, this study aims to bridge this gap by conducting a comparative analysis of these TPU grades and their relevance to fashion design.

Methodology

Experimental Setup

The experimental setup for this study involved the use of a 3D printer equipped with a TPU-compatible extruder and a heated build plate. The printer settings were optimized to ensure accurate and consistent printing of TPU samples.

Test Specimens and Printing Parameters

Rectangular test specimens were designed using computer-aided design (CAD) software, with dimensions specified according to international standards [13]. The printing parameters, such as layer height, printing speed, and infill density, were kept constant for all TPU grades to ensure a fair comparison.

Material Testing Procedures

The test specimens were subjected to a series of material tests to evaluate their mechanical properties and performance. These tests included tensile strength, elongation at break, flexibility (flexural modulus), stretchability, compression strength, and resilience. Standard testing protocols were followed as per relevant ASTM standards [14].

Data Collection and Analysis

The data obtained from the material tests were collected and analysed statistically to determine the mean values and standard deviations for each TPU grade. The results were then compared and interpreted to draw meaningful conclusions about the material properties and performance of TPU 45A, TPU 65A, and TPU 85A.

Printability Analysis

Printability is a crucial aspect to consider when evaluating the suitability of TPU grades for 3D printed clothing. The printability analysis involves assessing parameters such as layer adhesion, surface quality, print accuracy, and support structure removal [15]. The printability analysis reveals that TPU 65A exhibits the best performance in terms of layer adhesion and surface quality, while TPU 45A demonstrates the easiest support structure removal (Table 1).

Mechanical Properties

The mechanical properties of TPU grades play a crucial role in determining their suitability for 3D printed clothing. Key mechanical properties include tensile strength, elongation at break, flexibility, stretchability, compression strength, and resilience. From the mechanical properties analysis, it can be observed that TPU 85A demonstrates the highest tensile strength and compression strength, while TPU 45A exhibits the highest elongation at break and resilience (Table 2).

Comfort Evaluation

Comfort is a crucial factor in clothing design. In the context of 3D printed clothing, comfort evaluation involves assessing parameters such as breathability, moisture management, skin contact, and thermal properties. The comfort evaluation indicates that TPU 65A demonstrates superior breathability and moisture management compared to the other grades. However, TPU 45A exhibits lower skin contact and irritation potential (Table 3).

Aesthetics and Design Considerations

The aesthetics and design aspects of 3D printed clothing are crucial for its acceptance in the fashion industry. Factors such as color and pigmentation, surface finish and texture, and transparency and opacity are considered in this analysis. The aesthetics analysis reveals that TPU 65A offers the most versatility in terms of color and pigmentation options, while TPU 85A provides a textured surface finish. TPU 45A is limited in terms of color options and exhibits a smooth surface finish (Table 4).

Discussion

Printability and Process Optimization

The printability analysis demonstrated that each TPU grade has its own strengths and weaknesses. TPU 65A exhibited the best performance in terms of layer adhesion and surface quality. TPU 45A showcased the easiest support structure removal. These findings highlight the need for process optimization based on the desired printability characteristics for specific 3D printed clothing designs.

Mechanical Performance Comparison

The mechanical properties analysis revealed that TPU 85A exhibited the highest tensile strength and compression strength, making it suitable for applications requiring enhanced durability. TPU 45A demonstrated the highest elongation at break and resilience, making it suitable for designs that require flexibility and impact resistance.

Comfort Evaluation and Wearability

In terms of comfort evaluation, TPU 65A demonstrated superior breathability and moisture management, making it suitable for garments that prioritize comfort and breathability. However, TPU 45A exhibited lower skin contact and irritation potential, indicating potential suitability for sensitive skin.

Aesthetics and Design Possibilities

Considering aesthetics and design considerations, TPU 65A showcased the most versatility in terms of color and pigmentation options. TPU 85A offered a textured surface finish, providing unique design possibilities.

Conclusion

Summary of Findings

In summary, this study compared the material properties of TPU 45A, TPU 65A, and TPU 85A for 3D printed clothing in fashion design. The printability analysis revealed that TPU 65A exhibited excellent layer adhesion and surface quality, while TPU 45A showcased the easiest support structure removal. In terms of mechanical properties, TPU 85A demonstrated the highest tensile strength and compression strength, while TPU 45A exhibited the highest elongation at break and resilience. Comfort evaluation indicated that TPU 65A had superior breathability and moisture management, while TPU 45A showed lower skin contact and irritation potential. Aesthetically, TPU 65A provided the most versatility in terms of color options, while TPU 85A offered a textured surface finish.

Recommendations for Fashion Designers

Based on the findings of this study, fashion designers can make informed decisions when selecting TPU grades for 3D printed clothing. For designs that prioritize flexibility and impact resistance, TPU 45A is recommended. For enhanced durability, TPU 85A is suitable, while TPU 65A is ideal for designs that prioritize comfort and breathability. Aesthetically, TPU 65A provides versatility in color options, while TPU 85A offers unique textured finishes.

Future Research Directions

Further research can explore the combination of different TPU grades or the use of composite materials to achieve customized material properties for specific fashion design applications. Additionally, investigating post-processing techniques to enhance the comfort and aesthetic qualities of 3D printed TPU clothing would be beneficial.

References

1. Smith R, Mellor S (2018) Additive manufacturing in fashion: Designing the future of textiles. Additive Manufacturing 21: 212-220.
2. Muth JT, Dixon PG, Woish L, Gibson JM, Lewis JA (2017) Architected cellular ceramics with tailored stiffness via direct foam writing. Proceedings of the National Academy of Sciences 114(8): 1832-1837.
3. Hull CW (1986) Apparatus for production of three-dimensional objects by stereolithography.
4. Gibson I, Rosen DW, Stucker B (2014) Additive manufacturing technologies: 3D printing, rapid prototyping, and direct digital manufacturing. In: Springer, New York, pp. 498.
5. Leary M, Hague R (2014) Fashioning the future: 3D printing high-performance sportswear. Research Journal of Textile and Apparel 18(1): 88-100.
6. Lu Y, Mapar M, Yue S (2018) 3D printing of thermoplastic polyurethane elastomer: A review. Rapid Prototyping Journal 24(4): 784-798.
7. Chen L, Zhang M (2017) Mechanical properties of 3D-printed garments: A review. Journal of the Textile Institute, 108(3): 363-377.
8. Singh A, Wijngaart WVD, Spronck J (2017) 3D printing of textiles: A review. Journal of the Textile Institute 108(3): 381-399.
9. Zhang M, Devarajan R (2017) Recent developments in 3D-printing of continuous-fiber composites. Current Opinion in Solid State and Materials Science 21(4): 207-221.
10. Ligon SC, Liska R, Stampfl J, Gurr M, Mülhaupt R (2017) Polymers for 3D printing and customized additive manufacturing. Chemical Reviews 117(15): 10212-10290.
11. Farahani RD, Dubé M, Therriault D (2016) Three-dimensional printing of multifunctional nanocomposites: Manufacturing techniques and applications. Advanced Materials 28(28): 5794-5821.
12. Wu W, Ye Z, Xu B, Yin J, Chen X, et al. (2020) Mechanical and thermal properties of 3D printed thermoplastic polyurethane (TPU) with different microstructures. Additive Manufacturing 36: 101467.
13. ASTM International (2021) ASTM D638-14: Standard test method for tensile properties of plastics. ASTM International.
14. ASTM International (2021) ASTM D790-17: Standard test methods for flexural properties of unreinforced and reinforced plastics and electrical insulating materials. ASTM International.
15. Du H, Wang Y, Qian K, Liu Y (2019) 3D printing thermoplastic polyurethane elastomer: Effect of printing process parameters on print quality and mechanical properties. Journal of Materials Research and Technology 8(1): 1117-1125.