Thermally stable absorbable fiber populations, i.e. fiber populations that do not undergo thermally induced crystallization, can be intermixed with thermally unstable fibers to yield a stabilizing effect without altering morphological properties of a fiber system. Via this, one may minimize thermally induced shrinkage and maintain physical properties of electrospun materials in the as-formed state.

Thermally stable absorbable fiber populations, i.e. fiber populations that do not undergo thermally induced crystallization, can be intermixed with thermally unstable fibers to yield a stabilizing effect without altering morphological properties of a fiber system. Via this, one may minimize thermally induced shrinkage and maintain physical properties of electrospun materials in the as-formed state.

A fiber can include 50 mass % or more of a component A below and 10 mass % or more of a component B below with respect to a mass of a whole fiber. The fiber can include the component A and the component B inside the fiber. The component A is an aliphatic polyester. The component B can be a compound that is an ester compound of a polyhydric alcohol and a fatty acid, can be water-insoluble, can have a solidification point of 30 C. or more, and/or can include a fatty acid group having 14 or more and less than 24 carbon atoms.

A fiber can include 50 mass % or more of a component A below and 10 mass % or more of a component B below with respect to a mass of a whole fiber. The fiber can include the component A and the component B inside the fiber. The component A is an aliphatic polyester. The component B can be a compound that is an ester compound of a polyhydric alcohol and a fatty acid, can be water-insoluble, can have a solidification point of 30 C. or more, and/or can include a fatty acid group having 14 or more and less than 24 carbon atoms.

A nonwoven fabric including fibers, containing a component A below, a component B below, inside the fibers, wherein the nonwoven fabric includes 50 mass % or more and 95 mass % or less of the component A and 5 mass % or more and 50 mass % or less of the component B with respect to a mass of the whole nonwoven fabric, the fibers included in the nonwoven fabric have a number average fiber diameter of 4 m or less, the nonwoven fabric has a sheet width of 50 mm or more, the component A is a thermoplastic resin having a solidification point of 100 C. or less, and the component B is a compound having a solidification point higher than a solidification point of the thermoplastic resin having the highest solidification point among the thermoplastic resins and a melting point lower than 150 C.

A nonwoven fabric including fibers, containing a component A below, a component B below, inside the fibers, wherein the nonwoven fabric includes 50 mass % or more and 95 mass % or less of the component A and 5 mass % or more and 50 mass % or less of the component B with respect to a mass of the whole nonwoven fabric, the fibers included in the nonwoven fabric have a number average fiber diameter of 4 m or less, the nonwoven fabric has a sheet width of 50 mm or more, the component A is a thermoplastic resin having a solidification point of 100 C. or less, and the component B is a compound having a solidification point higher than a solidification point of the thermoplastic resin having the highest solidification point among the thermoplastic resins and a melting point lower than 150 C.

The invention relates to a biologically degradable multi-component polymer fibre, in particular bi-component fibres, with advantageous physical properties, to a process for its production, as well as to its use.

The invention relates to a biologically degradable multi-component polymer fibre, in particular bi-component fibres, with advantageous physical properties, to a process for its production, as well as to its use.

A nonwoven permeable structure fabric for use in the construction of automotive seats. The permeable structure fabric includes 60%-99% by weight of a first fiber and the first fiber has a first mass and a first melting point. The permeable structure includes 1-40% by weight of a second fiber and the second fiber has a second melting point that is lower than the first melting point. The first fiber and the second fiber are mechanically entangled in a first dimension and the first fiber and second fiber are mechanically entangled in a second dimension that is generally perpendicular to the first dimension. The first mass is between about 10 denier and about 30 denier.

A nonwoven permeable structure fabric for use in the construction of automotive seats. The permeable structure fabric includes 60%-99% by weight of a first fiber and the first fiber has a first mass and a first melting point. The permeable structure includes 1-40% by weight of a second fiber and the second fiber has a second melting point that is lower than the first melting point. The first fiber and the second fiber are mechanically entangled in a first dimension and the first fiber and second fiber are mechanically entangled in a second dimension that is generally perpendicular to the first dimension. The first mass is between about 10 denier and about 30 denier.