CN211641258U

CN211641258U - Moisture-absorbing and breathable hydrophilic polyurethane superfine fiber

Info

Publication number: CN211641258U
Application number: CN201921332311.2U
Authority: CN
Inventors: 孙灿; 林剑锋; 胡国洪; 聂汉宾; 葛玉君
Original assignee: Fujian Topsun Microfiber Co ltd
Current assignee: Fujian Topsun Microfiber Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-10-09
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a moisture absorption is ventilative hydrophilic polyurethane superfine fiber, including hydrophobic layer, surface course, tie coat and superfine fiber base embryo, the surface of superfine fiber base embryo forms as an organic wholely through tie coat and surface course bonding, and the superfine fiber base embryo is woven by warp and woof three-dimensional solid and is formed, the surface coating of surface course has the hydrophobic layer, the outside parcel of warp and woof has the silk yarn. This ventilative hydrophilic polyurethane superfine fiber of moisture absorption adopts hydrophilic gene polyurethane resin as surface course PU membrane, hydrophilic resin base forms the hydrogen chain because of CH2CH2O easily with the vapor molecule, pass the micropore more easily, thereby reach the ventilative effect of moisture absorption, the tie coat is microporous structure, can let the air pass from the micropore, it is ventilative to strengthen superfine fiber's moisture absorption, under the prerequisite that does not influence moisture absorption ventilation effect, do some water treatment of splashing on the surface, prevent during moisture in the service environment passes through micropore entering material, superfine fiber's functionality has been improved.

Description

Moisture-absorbing and breathable hydrophilic polyurethane superfine fiber

Technical Field

The utility model relates to an ultrafine fiber technical field specifically is a moisture absorption ventilative hydrophilic polyurethane ultrafine fiber.

Background

Along with the continuous development of society, the living standard of people is also continuously improved, the application of the superfine fiber is more and more extensive, however, in the application of shoe materials, consumers have more and more complaints about the poor air permeability of the superfine fiber of the conventional veneering, and it is known that in the production process of the superfine fiber, the air permeability of the products produced by the traditional surface layer and the adhesive layer is poor, generally, the superfine fiber surface layer resin is oily PU resin, the resin has excellent film forming property and good physical strength, but the air permeability is poor, because of the influence of such materials, the original excellent moisture absorption and air permeability of the superfine fiber base material cannot be used to advantage, and the use requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a moisture absorption is ventilative hydrophilic polyurethane superfine fiber to solve the poor problem of current superfine fiber's moisture absorption gas permeability ability that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a ventilative hydrophilic polyurethane superfine fiber of moisture absorption, includes hydrophobic layer, surface course, tie coat and superfine fiber base embryo, the surface of superfine fiber base embryo is formed as an organic whole through tie coat and surface course bonding, and the superfine fiber base embryo is woven by warp and woof three-dimensional solid and is formed, the surface coating of surface course has the hydrophobic layer, the outside parcel of warp and woof has the silk yarn.

Furthermore, the hydrophobic layer is a nano coating and is formed by mixing special hydrophobic molecules of fluorinated polyurethane elastomer and F-POSS.

Further, the surface layer is composed of hydrophilic polyurethane and PU oleoresin, and the proportion of the hydrophilic polyurethane and the PU oleoresin is 20: 80.

Furthermore, the bonding layer is specifically foamed natural latex, and a rosin tackifier is added into the bonding layer.

Further, the silk yarn is prepared by slightly dissolving calcium salt, and the ratio of warp yarn to weft yarn to silk yarn is 50: 50.

Compared with the prior art, the beneficial effects of the utility model are that: the moisture-absorbing breathable hydrophilic polyurethane superfine fiber adopts hydrophilic gene polyurethane resin as a surface layer PU film, the hydrophilic resin base easily forms hydrogen chains with water vapor molecules due to CH2CH2O, the hydrophilic resin soft segment has different molecular mass and can more easily penetrate through micropores, so that the moisture-absorbing breathable effect is achieved, meanwhile, the bonding layer is of a micropore structure, air can penetrate through the micropores, the moisture-absorbing breathability of the superfine fiber can be further enhanced, silk fiber is fused in yarn of the superfine fiber, and after the silk fiber is slightly dissolved by calcium salt, micropores can be formed inside the silk fiber, so that the superfine fiber has better moisture-absorbing breathability, and the superfine fiber is matched with the hydrophilic gene polyurethane to enable the whole superfine fiber to have excellent moisture-absorbing breathability;

the hydrophilic gene polyurethane resin serving as the surface layer is coated with the hydrophobic layer, so that on the premise of not influencing the moisture absorption and ventilation effects, some water splashing treatment is carried out on the surface, water in the use environment is prevented from entering the material through micropores, and the functionality of the superfine fiber is further improved;

this device is through changing traditional wainscot production technology, when guaranteeing the ventilative rerum natura of moisture absorption, fine solution on the market conventional superfine fiber is ventilative for the effect of more pressing close to the genuine leather, the problem that the smelly foot of foot sweat can not appear in the shoes that make superfine fiber like this wearing for a long time, on this basis, can develop more new products that have the genuine leather effect, satisfy the various demands in market.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the ultra-fine fiber base blank of the present invention;

in the figure: 1. hydrophobic layer, 2, surface layer, 3, bonding layer, 4, superfine fiber bottom blank, 5, warp, 6, weft, 7 and silk yarn.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a ventilative hydrophilic polyurethane superfine fiber of moisture absorption, includes hydrophobic layer 1, surface course 2, tie coat 3, superfine fiber base stock 4, warp 5, woof 6 and silk yarn 7, and the surface of superfine fiber base stock 4 is formed integratively through

tie coat

3 and 2 bonding of surface course, and superfine fiber base stock 4 is woven by

warp

5 and 6 three-dimensional solids of woof and is formed, and the surface coating of surface course 2 has hydrophobic layer 1, and

warp

5 and 6 outside parcel of woof have silk yarn 7.

Further, the hydrophobic layer 1 is the nano-coating, and specifically mix by the special hydrophobic molecule of "fluorinated polyurethane elastomer" and "F-POSS" and form, the structural design of hydrophobic layer 1 for it deposits on the bottom embryo 4 surface of superfine fiber, can not live the hole separation of the bottom embryo 4 of superfine fiber, air and aqueous vapor are still permeable, do not influence the moisture absorption ventilation effect of the bottom embryo 4 of superfine fiber, the self elasticity of hydrophobic layer 1 is excellent simultaneously, make people dress comfortable, self durability is strong simultaneously, long service life.

Furthermore, the surface layer 2 is composed of hydrophilic polyurethane and PU oleoresin with the proportion of 20:80, the hydrophilic polyurethane and the PU oleoresin form the surface film with micropores, so that the air permeability is correspondingly improved compared with that of the traditional superfine fiber, and the moisture absorption performance of the superfine fiber can be improved by properly improving the hydrophilicity.

Furthermore, the bonding layer 3 is specifically foamed natural latex, a rosin tackifier is added into the bonding layer 3, the diameter of cells of the bonding layer 3 is 50 micrometers, the average density of the cells is 2 multiplied by 106/cm 3, the rebound resilience is best, the number of the cells is large and dense, the moisture absorption and air permeability of the superfine fiber base blank 4 is enhanced, meanwhile, the elasticity is good, the overall comfort of the superfine fiber base blank 4 is not affected, and the rosin tackifier is added, so that the bonding force between latex fiber layers is ensured, the bonding between the superfine fiber base blank 4 and the surface layer 2 is firm, and the superfine fiber base blank 4 is prevented from being separated from the surface layer 2.

Furthermore, the silk yarn 7 is prepared by slightly dissolving the calcium salt, the ratio of the warp yarn 5 to the weft yarn 6 to the silk yarn 7 is 50:50, after the silk fiber is subjected to slightly dissolving treatment, weak structures among fibrils are damaged, the silk fiber swells and is divided into fibers to form micro-holes, on one hand, the elastic capacity of the silk fiber is improved, on the other hand, the warp yarn 5 and the weft yarn 6 added with the silk yarn 7 have good moisture absorption and ventilation shapes, and the overall elastic performance is excellent, so that the fabric formed by matching the superfine fiber bottom blank 4 with the hydrophobic layer 1, the surface layer 2 and the bonding layer 3 is good in overall elasticity and comfortable to wear.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a ventilative hydrophilic polyurethane superfine fiber of moisture absorption, includes hydrophobic layer (1), surface course (2), tie coat (3) and superfine fiber base stock (4), its characterized in that: the surface of superfine fiber base stock (4) bonds through tie coat (3) and surface course (2) and forms an organic whole, and superfine fiber base stock (4) is woven by warp (5) and woof (6) three-dimensional solid and is formed, the surface coating of surface course (2) has hydrophobic layer (1), the outside parcel of warp (5) and woof (6) has silk yarn (7).

2. The moisture-absorbing breathable hydrophilic polyurethane microfiber according to claim 1, wherein said moisture-absorbing breathable hydrophilic polyurethane microfiber comprises: the bonding layer (3) is specifically foamed natural latex.

3. The moisture-absorbing breathable hydrophilic polyurethane microfiber according to claim 1, wherein said moisture-absorbing breathable hydrophilic polyurethane microfiber comprises: the silk yarn (7) is prepared by slightly dissolving calcium salt.