阅读说明：本技术 一种芳香物质梯度释放的持久留香针织内裤的制备方法 (Preparation method of lasting fragrance-retaining knitted underpants capable of releasing fragrance substances in gradient manner ) 是由 巩继贤 张红霞 张健飞 李辉芹 齐业雄 姜亚明 李政 李秋瑾 徐磊 周宝明 何崟 于 2021-09-23 设计创作，主要内容包括：本发明公开了一种芳香物质梯度释放的持久留香针织内裤的制备方法,该方法以芳香棉纤维为主要纱线组分,通过组合区域织造,获得具有梯度释放的芳香针织内裤。通过芳香整理对纱线加香,获得芳香棉纱线,再对芳香棉纱线进行封装处理,使纤维表面形成一层膜,减少芳香物质的释放,再加以拒水整理,获得具有疏水效果的芳香纱线,将制得的纱线以不同比例、不同部位进行织造,获得具有阶段性释放的持久留香的芳香织物。本方法制备的芳香纱线工艺简单,便于流水线大规模操作,生产过程中工艺条件容易控制,生产成本低；本发明制备出来的芳香功能性内裤,可以经过多次水洗、具有良好的留香时间、同时芳香物质释放具有梯度性,值得推广。(The invention discloses a preparation method of fragrant-substance gradient-release lasting fragrant knitted underwear. Perfuming the yarn through aromatic finishing to obtain aromatic cotton yarn, then packaging the aromatic cotton yarn to form a film on the surface of the fiber to reduce the release of aromatic substances, then performing water repellent finishing to obtain aromatic yarn with a hydrophobic effect, and weaving the prepared yarn in different proportions and different positions to obtain the aromatic fabric with stage release and lasting fragrance. The aromatic yarn prepared by the method has simple process, is convenient for assembly line large-scale operation, and has easy control of process conditions in the production process and low production cost; the aromatic functional underpants prepared by the invention can be washed for many times, have good fragrance-retaining time, have gradient fragrance release, and are worthy of popularization.)

1. A method for preparing fragrant-retaining knitted underpants with fragrance gradient release, which is characterized by comprising the following steps:

(1) preparation of aromatic yarns: perfuming the pretreated yarn on a sizing machine, adding 10-50 g/L of aromatic microcapsules and 10-50 g/L of low-temperature adhesive into a sizing pool to form A finishing liquid, putting the yarn into the A finishing liquid to enable the aromatic finishing liquid to fully soak the yarn, dehydrating the yarn subjected to aromatic impregnation, and drying at low temperature to obtain an A-type aromatic yarn; the aromatic microcapsule is a conventional commodity, and the low-temperature adhesive is a mixture formed by mixing epoxy condensate with active groups, isocyanate and acrylate copolymer according to different proportions;

(2) packaging the aromatic yarns: soaking the obtained aromatic yarns into the B finishing liquid, processing for 1-3 times on a sizing machine, dehydrating and drying to obtain B-type aromatic yarns; the finishing liquid B is an aqueous polyurethane solution with the concentration of 10-50 g/L;

(3) finishing the aromatic yarns: performing water repellent finishing on the packaged aromatic yarns, configuring a finishing agent with the mass concentration of 10-50 g/L and a cross-linking agent with the mass concentration of 10-20 g/L to obtain C finishing liquid, and finishing the A-type aromatic yarns and the B-type aromatic yarns in the C finishing liquid respectively, wherein the padding mode is one-dipping-one-rolling (the padding rate is 20-50%), the baking temperature is 120-180 ℃, and the baking time is 1-5 min to obtain D-type aromatic yarns and E-type aromatic yarns;

(4) weaving: the A-type aromatic yarns, the B-type aromatic yarns, the D-type aromatic yarns and the E-type aromatic yarns are combined in different proportions and different modes respectively, and the fabric is woven according to the yarn regions in the attached drawings of the specification to obtain the aromatic knitted fabric with lasting fragrance.

Technical Field

The invention relates to a preparation method of lasting fragrance-retaining knitted underpants with gradient release of aromatic substances, belonging to the technical field of functional textiles.

Background

With the improvement of textile technology and living quality of people, the clothing fabric with single function can not meet the requirements of people on clothing, consumers not only require that the textile is comfortable to wear, soft in texture, moisture-absorbing and breathable and the like, but also gradually provide the functions of lasting fragrance, refreshing mind and spleen and the like, and the multifunctional textile fabric is the development trend of the existing textile.

At present, the preparation method of the aromatic yarn mainly comprises 3 methods: the aromatic yarn is prepared by a microcapsule method, the aromatic yarn is prepared by a blend spinning method, and the aromatic yarn is prepared by a composite spinning method. However, the existing aromatic fabrics have the defects of volatile fragrance, easy oxidation of active substances and short fragrance retention time, and the key problem to be solved by the aromatic fabrics is to prolong the fragrance retention time of the fabrics. The prior art preparation of aromatic textiles uses currently used adhesives to fix carriers containing aromatic substances to the fibres, and the products thus prepared have an insufficient persistence of the aroma.

The development of functional yarn is a symbol of the scientific progress of modern yarn. The development of functional, differential and high performance yarns is a technological innovation of the traditional textile industry. The invention aims to provide a method for preparing fragrant textiles by gradient release of aromatic substances, so as to solve the problems of effective release and lasting release of fragrance on the fragrant textiles, and thus, the lasting fragrance-retaining knitted fabric with good effects of gradient release of the aromatic substances and washing resistance is obtained.

Disclosure of Invention

The invention aims to solve the technical problems of poor fragrance durability and low functionality of the fragrant fabric and provides a preparation method of a fragrant-lasting knitted underwear with gradient release of fragrant substances.

The technical scheme adopted by the invention is as follows: a method for preparing fragrant-retaining knitted underpants with fragrance gradient release, which is characterized by comprising the following steps:

(1) preparation of aromatic yarns: perfuming the pretreated yarn on a sizing machine, adding 10-50 g/L of aromatic microcapsules and 10-50 g/L of low-temperature adhesive into a sizing pool to form A finishing liquid, putting the yarn into the A finishing liquid to enable the aromatic finishing liquid to fully soak the yarn, dehydrating the yarn subjected to aromatic impregnation, and drying at low temperature to obtain an A-type aromatic yarn; the aromatic microcapsule is a conventional commodity, and the low-temperature adhesive is a mixture formed by mixing epoxy condensate with active groups, isocyanate and acrylate copolymer according to different proportions;

(3) packaging the aromatic yarns: soaking the obtained aromatic yarns into the B finishing liquid, processing for 1-3 times on a sizing machine, dehydrating and drying to obtain B-type aromatic yarns; the finishing liquid B is an aqueous polyurethane solution with the concentration of 10-50 g/L;

(4) finishing the aromatic yarns: performing water repellent finishing on the packaged aromatic yarns, configuring a finishing agent with the mass concentration of 10-50 g/L and a cross-linking agent with the mass concentration of 10-20 g/L to obtain C finishing liquid, and finishing the A-type aromatic yarns and the B-type aromatic yarns in the C finishing liquid respectively, wherein the padding mode is one-dipping-one-rolling (the padding rate is 20-50%), the baking temperature is 120-180 ℃, and the baking time is 1-5 min to obtain D-type aromatic yarns and E-type aromatic yarns;

(4) weaving: the A-type aromatic yarns, the B-type aromatic yarns, the D-type aromatic yarns and the E-type aromatic yarns are combined in different proportions and different modes respectively, and the fabric is woven according to the yarn regions in the attached drawings of the specification to obtain the aromatic knitted fabric with lasting fragrance.

Due to the adoption of the technical scheme, the method has the following beneficial effects:

(1) by adopting the preparation scheme, the obtained knitted fabric has a gradient release effect, an ultra-long fragrance-retaining time and water-washing resistance of more than 30 times, which are incomparable with the single fragrance finishing fabric in the prior art; the fragrant substances in the area E are released slowly after 20 times of water washing, and certain fragrance still exists after the area E is washed for more than 30 times;

(2) the preparation method is simple and low in cost, and the prepared knitted fabric is soft and comfortable, has moisture absorption, air permeability and strong functionality, and increases the added value; the aromatic yarn prepared by the method is convenient for assembly line large-scale operation, the process condition in the production process is easy to control, and the production cost is low; the aromatic functional underpants prepared by the invention can be washed by water for many times, also has good fragrance retaining effect and gradient release, and is worthy of popularization.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1: in the invention, FIG. 1 is a weaving structure diagram in the specification.

Detailed Description

Example 1

A preparation method of fragrant hydrophobic functional knitted underwear with lasting fragrance comprises the following steps:

(1) preparation of aromatic yarns: perfuming the pretreated yarn on a sizing machine, adding 20g/L of aromatic microcapsules and 30g/L of low-temperature adhesive into a sizing pool to form A finishing liquid, putting the yarn into the A finishing liquid to enable the aromatic finishing liquid to fully soak the yarn, dehydrating the yarn subjected to aromatic impregnation, and drying at low temperature to obtain an A-type aromatic yarn; the aromatic microcapsule is a conventional commodity, and the low-temperature adhesive is a mixture formed by mixing epoxy condensate with active groups, isocyanate and acrylate copolymer according to different proportions;

(2) packaging the aromatic yarns: soaking the obtained aromatic yarn into the finishing liquid B, processing for 2 times on a sizing machine, dehydrating and drying to obtain B-type aromatic yarn; the finishing liquid B is a water-based polyurethane solution with the concentration of 10 g/L;

(3) finishing the aromatic yarns: performing water repellent finishing on the packaged aromatic yarns, wherein the mass concentration of a finishing agent is 10g/L, the mass concentration of a cross-linking agent is 20g/L, preparing C finishing liquid, and finishing the A-type aromatic yarns and the B-type aromatic yarns in the C finishing liquid respectively, wherein the padding mode is one-dipping-one-rolling (the padding rate is 20%), the baking temperature is 130 ℃, and the baking time is 2min, so that D-type aromatic yarns and E-type aromatic yarns are obtained;

(4) weaving: the A-type aromatic yarns, the B-type aromatic yarns, the D-type aromatic yarns and the E-type aromatic yarns are combined in different proportions and different modes respectively, and the fabric is woven according to the yarn regions in the attached drawings of the specification to obtain the aromatic knitted fabric with lasting fragrance.

Example 2

The difference from the embodiment 1 is that: preparing aromatic yarns in the step (1): perfuming the pretreated yarn on a sizing machine, adding 40g/L of aromatic microcapsule and 40g/L of low-temperature adhesive into a sizing pool to form A finishing liquid, putting the yarn into the A finishing liquid to enable the aromatic finishing liquid to fully soak the yarn, dehydrating the yarn subjected to aromatic impregnation, and drying at low temperature to obtain an A-type aromatic yarn; the aromatic microcapsule is a conventional commodity, and the low-temperature adhesive is a mixture formed by mixing epoxy condensate with active groups, isocyanate and acrylate copolymer according to different proportions;

(2) packaging the aromatic yarns: soaking the obtained aromatic yarn into the B finishing liquid, processing for 3 times on a sizing machine, dehydrating and drying to obtain B-type aromatic yarn; the finishing liquid B is an aqueous polyurethane solution with the concentration of 40 g/L;

(3) finishing the aromatic yarns: performing water repellent finishing on the packaged aromatic yarns, preparing C finishing liquid with the mass concentration of the finishing agent being 40g/L and the mass concentration of the cross-linking agent being 15g/L, finishing the A-type aromatic yarns and the B-type aromatic yarns again in the C finishing liquid respectively, wherein the padding mode is one-dipping-one-rolling (the padding rate is 40%), the baking temperature is 150 ℃, and the baking time is 4min, so as to obtain D-type aromatic yarns and E-type aromatic yarns;

(4) weaving: the A-type aromatic yarns, the B-type aromatic yarns, the D-type aromatic yarns and the E-type aromatic yarns are combined in different proportions and different modes respectively, and the fabric is woven according to the yarn regions in the attached drawings of the specification to obtain the aromatic knitted fabric with lasting fragrance.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered in the protection scope of the present invention.