Spunbond nonwoven fabric, method for producing same, and agricultural material

A polyester-based spunbond nonwoven fabric with controlled fiber orientation and fusion bonding addresses biodegradation and tearing issues, providing enhanced heat retention, moisture retention, and mechanical strength for agricultural use.

JP2026022766APending Publication Date: 2026-02-13TORAY INDUSTRIES INC
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
JP2024124286
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

Existing spunbond nonwoven fabrics used as agricultural materials face issues such as rapid biodegradation, mechanical strength loss over time, and susceptibility to tearing in the cross-direction due to applied tension.

Method used

A spunbond nonwoven fabric composed of polyester-based fibers with specific fiber orientation, tensile strength ratios, and fused portions, produced through controlled spinning, drawing, and fusion bonding processes, ensuring optimal heat retention, moisture retention, breathability, and mechanical strength.

Benefits of technology

The fabric achieves excellent heat retention, moisture retention, breathability, and high mechanical strength, making it suitable for agricultural applications with improved durability and workability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026022766000003
    Figure 2026022766000003
  • Figure 2026022766000004
    Figure 2026022766000004
  • Figure 2026022766000001
    Figure 2026022766000001
Patent Text Reader

Abstract

To provide a spun-bonded nonwoven fabric suitable for use as an agricultural material, concretely, excellent in heat retaining properties, moisture retaining properties and air permeability, further having high strength and excellent in workability.SOLUTION: A spunbonded nonwoven fabric comprising a fiber composed mainly of a polyester-based resin and having a fusion-bonded part, wherein the number ratio of fibers having a fiber orientation degree of 30 ° or more and 55 ° or less in the spunbonded nonwoven fabric among the fibers is 25% or more and 50% or less, the ratio TSMD / TSCD of the tensile strength TSMD (N / 5 cm) in the MD direction of the spunbonded nonwoven fabric to the tensile strength TSCD (N / 5 cm) in the CD direction of the spunbonded nonwoven fabric is 1.90 or more and 2.50 or less, and the area ratio of the fusion-bonded part is 10% or more and 30% or less.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Solid covering sheet for agriculture

    JP1998215706A

  • Agriculture covering material

    JP2017079647A