41results about How to "Large degree of curl" patented technology

The invention relates to a composite differential shrinkage yarn and a preparation method thereof. The composite differential shrinkage yarn is formed by compositing of a POY (polyester pre-oriented yarn) body and an FDY (fully drawn yarn) body, both the POY body and the FDY body are made of modified polyester by means of spinning, the modified polyester is formed by polyester and amino fatty acid gylcol ester, the amino fatty acid gylcol ester is scattered among molecular chains of the polyester, and a hydrogen-bond interaction among the amino fatty acid gylcol ester and the molecular chains of the polyester enables opposite positions of the amino fatty acid gylcol ester and the molecular chains of the polyester to be fixed; in the condition with temperature ranging from 90 DEG C to 130 DEG C, free volume spaces among molecular chains inside a fiber of the composite differential shrinkage yarn are enlarged by 20-30v/v%. The composite differential shrinkage yarn has the advantages that the free volume of polyester fibers is increased by the aid of fatty acid ester, so that diffusing degree of dye is improved, dyeing property of the polyester fibers is improved, and the composite differential shrinkage yarn is applicable to fashion fabric, decorative fabric and the like formed by means of spinning, knitting and warp knitting.

The invention relates to a differential-shrinkage cotton-like composite filament and preparation method thereof; the differential-shrinkage cotton-like composite filament is a composite filament blended by a modified polyester POY filament and a modified polyester FDY filament; the modified polyester consists of polyester and aminoadipic acid glycol ester; the aminoadipic acid glycol ester is dispersed among the molecular chains of the polyester; and the aminoadipic acid glycol ester takes effect of hydrogen bond among the molecular chains of the polyester, so as to stabilize the positions of the aminoadipic acid glycol ester with respect to the molecular chains of the polyester; in condition of the temperature is 90-130 degrees centigrade, the free volume spaces among the molecular chains inside the fiber of the differential-shrinkage cotton-like composite filament are increased by 20-30v/v%. The aliphatic ester increases the free volume of the polyester fiber in order to increase the diffusion degree of the dye, thereby increasing the dyeing performance of the polyester fiber. The differential-shrinkage cotton-like composite filament is applicable to clothes fabric, bedding article, decoration article, and the like.

The invention relates to a linen-like type differential shrinkage composite filament and a preparation method thereof. The linen-like type differential shrinkage composite filament is a composite filament prepared from modified polyester POY filaments and modified polyester FDY filaments which are subjected to fiber mixing processing; the breakage elongation of the linen-like type differential shrinkage composite filament is 40.0+/-3.0%, the network degree of the linen-like type differential shrinkage composite filament is 95+/-5 piece/m; the modified polyester consists of polyester and amino fatty acid gylcol ester; the amino fatty acid gylcol ester is dispersed among the molecular chains of the polyester and has a hydrogen bonding function with the molecular chains of the polyester, so that the relative positions of the amino fatty acid gylcol ester and the molecular chains of the polyester are fixed; under the condition that the temperature is 90-130 DEG C, the free volume space among the molecular chains of fiber of the linen-like type differential shrinkage composite filament is increased by 20-30v/v%. Due to adoption of the aliphatic ester, the free volume of the polyester fiber is increased, so that the diffusion degree of dye is increased, and the dyeing property of the polyester fiber is improved. The linen-like type differential shrinkage composite filament can be used in the industries such as high-class woof fabrics and clothes.

The invention relates to a wool-like differential shrinkage composite filament and a preparation method thereof. The wool-like differential shrinkage composite filament is a composite filament prepared from modified polyester POY filaments and modified polyester FDY filaments which are subjected to fiber mixing processing; the amino fatty acid gylcol ester is dispersed among the molecular chains of the polyester and has a hydrogen bonding function with the molecular chains of the polyester, so that the relative positions of the amino fatty acid gylcol ester and the molecular chains of the polyester are fixed; under the condition that the temperature is 90-130 DEG C, the free volume space among the molecular chains of fiber of the wool-like differential shrinkage composite filament is increased by 20-30v/v%. Due to adoption of the aliphatic ester, the free volume of the polyester fiber is increased, so that the diffusion degree of dye is increased, and the dyeing property of the polyester fiber is improved. The wool-like differential shrinkage composite filament can be used in the industries such as clothes fabrics, bedding articles and decorative articles.

The invention relates to a high-modulus and low-shrinkage type activated polyester industry yarn and a preparation method thereof. The high-modulus and low-shrinkage type activated polyester industry yarn is prepared from modified polyester, the modified polyester is composed of polyester and aminoadipic acid gylcol ester, the aminoadipic acid gylcol ester is dispersed among molecular chains of the polyester, hydrogen-bond interaction exists between the aminoadipic acid gylcol ester and the molecular chains of the polyester, and the relative position of the aminoadipic acid gylcol ester and the molecular chains of the polyester is fixed; the free volume space among the molecular chains inside the fibers is increased by 10-15v/v% when the high-modulus and low-shrinkage type activated polyester industry yarn is at 70-80 DEG C, a part of activating agent molecules are dispersed into fiber gaps, more -OHs and -NHs with strong activity are introduced, and the reactivity of the polyester fiber is improved; and the high-modulus and low-shrinkage type activated polyester industry yarn can be applied to light trucks, canvas conveyer belts and the like.

The invention relates to a polyester fiber DTY (draw textured yarn) with high dyeing rate and a preparation method thereof. The polyester fiber polyester fiber DTY with high dyeing rate is made from modified polyester, the modified polyester is composed of polyester and aminoadipic acid gylcol ester, the aminoadipic acid gylcol ester is dispersed among molecular chains of the polyester, hydrogen-bond interaction exists between the aminoadipic acid gylcol ester and the molecular chains of the polyester, and the relative position of the aminoadipic acid gylcol ester and the molecular chains of the polyester is fixed; the free volume space among the molecular chains inside the fiber is increased by 20-30v/v% when the polyester fiber DTY with high dyeing rate is at 90-130 DEG C, the dying rate of the polyester fiber DTY with high dyeing rate is higher than that of the common fiber when the polyester fiber DTY with high dyeing rate adopts the same dyes such as disperse red 3B, disperse blue SE-2R, disperse bright blue S-GL and the like, less surface dyeing is formed after dyeing, and the polyester fiber DTY with high dyeing rate can be used for garment materials, bedding article decoration and the like.

The invention relates to porous super-bright polyester fiber and a preparation method of the porous super-bright polyester fiber. According to the porous super-bright polyester fiber, melt spinning, multi-pore forming, section heteromorphosis and the like are conducted to make the polyester fiber have the super-bright flickering effect, and the material is modified polyester; a linear spinneret plate is adopted in the melt spinning process; the modified polyester is composed of polyester and amidogen fatty acid glycol ester, the amidogen fatty acid glycol ester is dispersed among the molecular chains of the polyester, and the free volume space of the porous super-bright polyester fiber polyester among the molecular chains inside the fiber is increased by 20 v/v% to 30 v/v% under the condition that the temperature ranges from 90 DEG C to 130 DEG C; the porous super-bright polyester fiber can be used for silk-like fabric, wool-like fabric, corduroy, other pile fabric, woolen yarn, decorative fabric and the like.

The invention relates to a polyurethane coated fabric and a preparation method thereof. The polyurethane coated fabric comprises a fabric layer and a polyurethane coating, the warps and the wefts of the fabric layer are polyester industry yarns for the polyurethane coated fabric, the polyester industry yarns for the polyurethane coated fabric are made from modified polyester, the modified polyester is composed of polyester and aminoadipic acid gylcol ester, the aminoadipic acid gylcol ester is dispersed among molecular chains of the polyester, hydrogen-bond interaction exists between the aminoadipic acid gylcol ester and the molecular chains of the polyester, and the relative position of the aminoadipic acid gylcol ester and the molecular chains of the polyester is fixed; the free volume space among the molecular chains inside the fiber is increased by 20-40v/v% when the polyester industry yarns for the polyurethane coated fabric are at 100-150 DEG C, the polyurethane coated fabric and the polyurethane have good interface bonding effect, and the polyester industry yarns for the polyurethane coated fabric can be used for improving the appearance of the fabric.

The invention relates to a polyester paralleling composite yarn. The polyester paralleling composite yarn is prepared from PBT (polybutylece terephthalate) and modified polyester PET (polyethylene terephthalate) chips through parallel composite spinning, wherein the modified polyester is composed of polyester and aminoadipic acid gylcol ester, the aminoadipic acid gylcol ester is dispersed among molecular chains of the polyester, hydrogen-bond interaction exists between the aminoadipic acid gylcol ester and the molecular chains of the polyester, and the relative position of the aminoadipic acid gylcol ester and the molecular chains of the polyester is fixed; the free volume space among the molecular chains inside the fibers is increased by 20-30v/v% when the polyester of the polyester paralleling composite yarn is at 90-130 DEG C, the dying rate of the polyester paralleling composite yarn is higher than that of the common fiber when the polyester paralleling composite yarn adopts disperse red 3B and the like, less surface dyeing is formed after dyeing, and the polyester paralleling composite yarn has wide application prospect in the field of garment materials.

The invention relates to a low-shrinkage type activated polyester industrial filament and a preparation method thereof. The low-shrinkage type activated polyester industrial filament is made of modified polyester; the modified polyester consists of polyester and amino fatty acid gylcol ester; the amino fatty acid gylcol ester is dispersed among molecular chains of the polyester and has hydrogen-bond interaction to the polyester, so that the relative positions of the molecular chain of the amino fatty acid gylcol ester and the polyester are fixed; under the condition of 70-80 DEG C, the free volume space of a part of the molecular chains inside the low-shrinkage type activated polyester industrial filament is increased by 10-15v/v%, the breaking strength of the low-shrinkage type activated polyester industrial filament is greater than or equal to 7.6 cN/dtex, and the core absorption height is less than or equal to 5 mm. A part of molecules of an activating agent are diffused and enter fiber gaps, and more -OH and -NH with relatively high activity are introduced into polyester molecules, so that the reactivity of the polyester fiber is improved. The low-shrinkage type activated polyester industrial filament can be used in apron fabrics, radial tire builder fabrics, and the like.

The invention relates to a polyester elastic yarn and a preparation method thereof. The polyester elastic yarn is a double-component parallel composite yarn prepared from PTT (Polytrimethylene Terephthalate) and modified polyester; the elongation at break of the polyester elastic yarn is 30.0+/-3.0%, and the boiling water shrinkage is 10.0+/-0.5%; the modified polyester is prepared from polyester and amino fatty acid gylcol ester, wherein the amino fatty acid gylcol ester is dispersed among molecular chains of polyester and is in hydrogen-bond interaction with the molecular chains of polyester, therefore, the relative positions of the amino fatty acid gylcol ester and the molecular chains of polyester can be fixed. According to the polyester elastic yarn, the free volume space among molecular chains in fibers is expanded by 20-30v/v% under a temperature of 90 to 130 DEG C; the dyeing performance of polyester can be improved and the elastic damage degree of composite yarns can be reduced by adopting the polyester elastic yarn; the polyester elastic yarn is suitable for preparing elastic fibers and elastic decorative products.

The invention relates to high-dye-uptake-rate polyester fiber and a preparation method thereof. The high-dye-uptake-rate polyester fiber is made from modified polyester. The modified polyester is prepared by polyester and amido fatty acid gylcol ester, wherein the amido fatty acid gylcol ester is dispersed among molecular chains of the polyester to produce mutual hydrogen-bond interaction, so that the relative positions of the amido fatty acid gylcol ester and the molecular chains of the polyester are fixed. The free volume spaces among the molecular chains inside the high-dye-uptake-rate polyester fiber is increased by 20-30v/v% under the condition of temperature of 90-130 DEG C. The high-dye-uptake-rate polyester fiber has higher dye uptake rate compared with common fiber under the situation that the same dyes including disperse red 3B, disperse blue SE2R, disperse bright blue S-GL and the like are adopted, and the dyeing cost is reduced. The high-dye-uptake-rate polyester fiber can be used for c garment materials, bedding articles, decoration articles and the like.

The invention relates to a polyester fiber FDY (Fully Drawn Yarn) with high dyeing rate and a preparation method thereof. The polyester fiber FDY with high dyeing rate is prepared from modified polyester, the modified polyester is composed of polyester and aminoadipic acid gylcol ester, the aminoadipic acid gylcol ester is dispersed among molecular chains of the polyester, hydrogen-bond interaction exists between the aminoadipic acid gylcol ester and the molecular chains of the polyester, and the relative position of the aminoadipic acid gylcol ester and the molecular chains of the polyester is fixed; the free volume space among the molecular chains inside the fiber is increased by 20-30v/v% when the polyester fiber FDY with high dyeing rate is at 90-130 DEG C, the dying rate of the polyester fiber FDY with high dyeing rate is higher than that of the common fiber when the polyester fiber FDY with high dyeing rate adopts the same dyes such as disperse red 3B, disperse blue SE-2R, disperse bright blue S-GL and the like, less surface dyeing is formed after dyeing, and the polyester fiber FDY with high dyeing rate can be used for garment materials, bedding article decoration and the like.

The invention relates to a heavy-caliber conveyer belt. The heavy-caliber conveyer belt comprises a fabric layer and a polyurethane coating, the warps and the wefts of the fabric layer are modified polyester industry yarns, the modified polyester industry yarns are prepared from modified polyester, the modified polyester is composed of polyester and aminoadipic acid gylcol ester, the aminoadipic acid gylcol ester is dispersed among molecular chains of the polyester, hydrogen-bond interaction exists between the aminoadipic acid gylcol ester and the molecular chains of the polyester, and the relative position of the aminoadipic acid gylcol ester and the molecular chains of the polyester is fixed; the free volume space among the molecular chains inside the fiber is increased by 20-40v/v% when the modified polyester industry yarns are at 100-150 DEG C, polyurethane can form a firm resinoid coating on the surface of the fabric layer when the modified polyester industry yarn is subjected to heat treatment process, and the polyurethane coated fabric and the polyurethane have good interface bonding effect; and the heavy-caliber conveyer belt is mainly used for delivering high pressure water.

The invention relates to a conductive fabric and a preparation method thereof. The conductive fabric is composed of a modified polyester industrial silk fabric and a copper plating layer coated on the silk fabric. The material of modified polyester industrial yarns is modified polyester, and the modified polyester is composed of polyester and amino fatty acid glycol ester; under a certain temperature condition, the increasing range of free volume of the amino fatty acid glycol ester is much greater than that of polyester macromolecular chain, so that the interfacial combined functions of the metal coating and polyester fibers are improved, and the wash fastness of the metal coating is improved. Meanwhile, the regularity and crystallization of polyester structure are not destroyed, and the good performance of polyester is maintained. The conductive fabric is widely used in the field of clothing, electronic industry, medical science, biological science, aerospace and the like.

The invention relates to water-repellent fabric and a manufacturing method of the water-repellent fabric. The water-repellent fabric is formed by weaving polyester industrial yarn used for the water-repellent fabric, the polyester industrial yarn used for the water-repellant fabric is made of modified polyester, and the water-repellant fabric is formed by arranging after water repellency. The modified polyester is composed of polyester and amino fatty acid glycol ester dispersed among molecular chains of the polyester, a hydrogen-bond interaction is achieved between the amino fatty acid glycol ester and the molecular chains of the polyester, and therefore the relative positions of the amino fatty acid glycol ester and the molecular chains of the polyester are fixed. According to the water-repellent fabric, at the temperature of 70 DEG C-130 DEG C, the free volume space between the molecular chains inside fibers is enlarged by 10 v/v%-30 v/v%, the breaking strength of the polyester industrial yarn used for the water-repellant fabric is larger than or equal to 7.2 cN/dtex, and the elongation at break is 20.0+/-2.0%. The washable performance of the water-repellant fabric is good. The water-repellant fabric can be used for industries such as tents and drapes.

The invention relates to super-bright light trefoil irregular FDY fiber and a preparation method thereof. The super-bright light trefoil irregular FDY fiber is made of modified polyester and is manufactured by spinning the modified polyester by using a trefoil irregular spinneret plate of which the spinneret orifice has a Y-shaped structure; the modified polyester consists of polyester and amino fatty acid gylcol ester; the amino fatty acid gylcol ester is dispersed among molecular chains of the polyester and has hydrogen-bond interaction to the polyester, so that the relative positions of the molecular chains of the amino fatty acid gylcol ester and the polyester are fixed; under the condition of 90-130 DEG C, the free volume space of a part of the molecular chains inside the super-bright light trefoil irregular FDY fiber is increased by 20-30v/v%. Under the condition that identical pigment such as disperse red 3B is used, the super-bright light trefoil irregular FDY fiber has a dyeing rate which is much higher than that of ordinary fiber, and color flooding is reduced after dyeing. The super-bright light trefoil irregular FDY fiber can be used in fields such as woven satin fabrics and imitated silk fabrics.