CN211764362U

CN211764362U - High-temperature-resistant thermal transfer printed cloth

Info

Publication number: CN211764362U
Application number: CN201922485513.7U
Authority: CN
Inventors: 谢秀萍
Original assignee: Jiaxing Huali Nonwovens Products Co ltd
Current assignee: Jiaxing Huali Nonwovens Products Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-27
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a high temperature resistant thermal transfer printing cloth, which comprises a polyester fiber layer and a transfer printing layer; the polyester fiber layer is formed by carding conventional polyester fibers, and a plurality of bonding points are arranged inside the polyester fiber layer; the bonding point is bi-component polyester fiber comprising low-melting-point PET and conventional PET; the melting point of the melting point PET is 180 ℃; the melting point of conventional PET is 250-255 degrees. The utility model relates to a high temperature resistant thermal transfer calico adopts two ingredient polyester fiber for this fibrous sandwich layer can not be by the melting when thermal transfer stamp, and can also make the cortex melting can bond adjacent fibre with it together, makes the smooth not fluff in surface of calico. And the polyester fiber layer is prepared by combining cross lapping and parallel lapping, the cross lapping can improve the longitudinal and transverse strength ratio of the printed cloth, the parallel lapping can improve the preparation speed of the polyester fiber layer, and the production speed can be improved on the premise of ensuring the physical properties of the product.

Description

High-temperature-resistant thermal transfer printed cloth

Technical Field

The utility model belongs to the technical field of the non-woven fabrics technique and specifically relates to a high temperature resistant thermal transfer calico.

Background

Non-woven fabrics are also called non-woven fabrics, and are called non-woven fabrics for short. Is defined as: oriented or randomly arranged fibers are formed into a sheet, web or batt by abrading, cohesion or bonding or a combination of these methods. The modern industrial production of non-woven fabrics originated in the 50 s of the 20 th century and has been developed rapidly so far. At present, the nonwoven fabric is still a sanitary absorbent product in the largest field of application, and in addition, geotextiles, electronic and electrical products, filter materials, materials for furniture and the like are rapidly developed. The non-woven fabric has wider and wider application and still has optimistic development prospect.

Transfer printing is a printing process that relies on sublimation of the dye and the diffusion and affinity of the dye vapor to the fiber to achieve a coloring effect. The process has the characteristics of less equipment investment, simple process, low cost, no need of evaporation and water washing after printing and the like.

The non-woven fabrics that transfer printing non-woven fabrics often used are water thorn non-woven fabrics, because this kind of non-woven fabrics surface cloth has more fine hair, can cause the pattern edge unclear when the stamp. If the printing effect of the non-woven fabric is improved, the non-woven fabric needs to be pretreated. And the product of the spunlace non-woven fabric is subjected to spunlace and drying, so that the energy consumption of the whole product is higher. How to develop a product which is high and can make the printed pattern better clear when printing. So that the product is more suitable for food packaging bags, home decoration and automotive interior decoration.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high temperature resistant thermal transfer calico can make the stamp flower type on this calico more clear to the smooth not fluff in calico surface.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

the utility model relates to a high temperature resistant thermal transfer printing cloth, which comprises a polyester fiber layer and a transfer printing layer; the polyester fiber layer is formed by carding conventional polyester fibers, and a plurality of bonding points are arranged inside the polyester fiber layer; the bonding points are two-component polyester fibers; the cross section of the bicomponent polyester fiber is of a sheath-core structure or a parallel structure; the bicomponent polyester fiber of the sheath-core structure comprises a sheath layer and a core layer, wherein the sheath layer is low-melting-point PET, and the core layer is conventional PET; the bicomponent polyester fiber with the parallel structure comprises a part A and a part B, wherein the part A is low-melting-point PET, and the part B is conventional PET; the melting point of the low-melting-point PET is 180 ℃; the melting point of the conventional PET is 250-255 ℃.

As a further explanation of the above scheme, the polyester fiber layer comprises a cross lapping layer and a parallel lapping layer; the gram weight ratio of the cross lapping layer to the parallel lapping layer is 7:3-5: 5.

As a further explanation of the above scheme, the fineness of the bicomponent polyester fiber is 4D, and the length is 51-60 mm; the fineness of the conventional polyester fiber is 1.56dtex, and the length of the conventional polyester fiber is 51-64 mm.

As a further illustration of the above, the transfer printed layer is adjacent to a parallel lapping layer.

As a further explanation of the above scheme, the other side of the polyester fiber layer is compounded with a microporous membrane; the microporous membrane has micropores, and the pore size of the micropores is between the diameter of water molecules and the diameter of air molecules.

As a further explanation of the scheme, the cross section of the bicomponent polyester fiber with the parallel structure is circular, racetrack-shaped, dumbbell-shaped or peanut-shaped.

The utility model has the advantages that: the utility model relates to a high temperature resistant thermal transfer calico adopts two ingredient polyester fiber for this fibrous sandwich layer can not be by the melting when thermal transfer stamp, and can also make the cortex melting can bond adjacent fibre with it together, makes the smooth not fluff in surface of calico. And the polyester fiber layer is prepared by combining cross lapping and parallel lapping, the cross lapping can improve the longitudinal and transverse strength ratio of the printed cloth, the parallel lapping can improve the preparation speed of the polyester fiber layer, and the production speed can be improved on the premise of ensuring the physical properties of the product.

Drawings

FIG. 1 is a schematic structural view of a printed fabric according to the first and second embodiments;

FIG. 2 is a cross-sectional view of a sheath-core structured bicomponent polyester fiber;

FIG. 3 is a schematic cross-sectional view of a bicomponent polyester fiber in a side-by-side configuration;

FIG. 3a is a schematic cross-sectional view of a bicomponent polyester fiber with a circular cross-section and a side-by-side structure;

FIG. 3b is a schematic cross-sectional view of the bicomponent polyester fiber with a racetrack-shaped cross-section parallel structure;

FIG. 3c is a schematic cross-sectional view of the two-component polyester fiber with dumbbell-shaped cross-section parallel structure;

FIG. 3d is a schematic cross-sectional view of the bicomponent polyester fiber with a parallel structure of peanut-shaped cross-sections;

FIG. 4 is a schematic structural view of a printed calico in accordance with a third embodiment;

fig. 5 is a schematic cross-sectional view of the bicomponent polyester fiber with a side-by-side structure used in the third embodiment.

The designations in the figures illustrate the following: 1-a polyester fiber layer; 2-printing layer; 11-cross lapping layers; 12-laying a net layer evenly; 13-cortex; 14-a core layer; 3-microporous membrane.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example one

The present embodiment will be described in detail with reference to fig. 1 and 2. The high-temperature-resistant thermal transfer printing cloth comprises a polyester fiber layer 1 and a transfer printing layer 2.

The polyester fiber layer 1 is formed by carding conventional polyester fibers, and a plurality of bonding points are arranged inside the polyester fiber layer. The bonding points are bi-component polyester fibers. The polyester fiber layer 1 comprises a cross lapping layer 11 and a parallel lapping layer 12; the gram weight ratio of the cross lapping layer 11 to the parallel lapping layer 12 is 7:3-5:5, and in the embodiment, 7: 3. the transfer printed layer 2 is adjacent to the parallel ply layer 12.

In this embodiment, conventional polyester fibers and bicomponent polyester fibers are mixed according to a predetermined ratio, and then subjected to opening, cotton mixing and carding, and then a cross lapping layer 11 and a parallel lapping layer 12 are formed in a cross lapping and parallel lapping manner. In the process of forming the fiber web, the forming speed of the fiber web in the parallel lapping mode is higher than that of the fiber web in the cross lapping mode. When the cross lapping mode is used for forming the net, the fiber net has small ration, the carding speed of the carding machine can be improved, and the forming speed of the cross lapping layer 11 can be improved. It can be seen that the use of two layers of cross-plied 11 and parallel-plied 12 arrangement increases the speed of web formation.

In this embodiment, the cross section of the bicomponent polyester fiber used can be a sheath-core structure or a side-by-side structure. The bicomponent polyester fiber of the sheath-core structure comprises a sheath layer and a core layer, wherein the sheath layer is low-melting-point PET, and the core layer is conventional PET. The bicomponent polyester fiber in the parallel structure comprises an A part and a B part. Part A is low melting PET and part B is conventional PET. So that the melting point of the low-melting PET is 180 ℃; the melting point of the conventional PET is 250-255 ℃. Specifically, the sheath-core bicomponent polyester fiber is selected in the embodiment, and the area ratio of the sheath-core bicomponent polyester fiber to the core-core bicomponent polyester fiber on the cross section is 1: 1. firstly, hot-roller hot pressing is carried out on the polyester fiber layer 1, so that the low-melting-point PET on the surface can be melted, and the surface is smooth.

The temperature range during the thermal transfer printing is about 200 ℃, so that the low-melting-point PET can be melted at the treatment temperature, the conventional PET as the core layer can not be melted, the two-component polyester fiber can not be completely melted, and the strength of the two-component polyester fiber can be kept to a certain extent. In the conventional hot-melt type fiber, the PE/PP double-component fiber with a sheath-core structure is also adopted, so that the fiber is not selected, and the strength of the whole polyester fiber layer is greatly lost due to the fact that the PE and the PP which are two raw materials are completely molten at the heat transfer temperature.

The fineness of the bicomponent polyester fiber used in the embodiment is 4D, and the length is 51-64 mm; the fineness of the conventional polyester fiber is 1.56dtex, and the length of the conventional polyester fiber is 51-64 mm. Specifically, the length of the wool-type fibers is 51 mm.

Example two

The present embodiment will be described in detail with reference to fig. 1 and 3. The difference between the high-temperature-resistant thermal transfer printed cloth related to the embodiment and the embodiment I is that the selected bicomponent polyester fibers are in a parallel structure. The cross section of the bicomponent polyester fiber is round, runway-shaped, dumbbell-shaped or peanut-shaped. The area weave ratio of the part A and the part B is 1: 1. the shapes of the various cross-sections are shown in fig. 3a, 3b, 3c, 3d, respectively.

EXAMPLE III

The high temperature resistant thermal transfer printed cloth according to this embodiment will be described in detail with reference to fig. 4 and 5. The present embodiment is different from the second embodiment in that a microporous membrane 3 is combined on one side of a cross-laid web layer 12 of a polyester fiber layer 1. The microporous membrane 3 of (2) has micropores having a pore size between the diameter of a water molecule and the diameter of an air molecule. The microporous membrane 3 is one or the combination of any two layers of TPU film, PVC film, PE film or foaming PVC film. In the present embodiment, a TPU film is selected

In the embodiment, the selected bicomponent polyester fibers are in a side-by-side structure. The cross section of the bicomponent polyester fiber is circular, and the bicomponent polyester fiber sequentially comprises a part A, a part B and a part A.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A high-temperature-resistant thermal transfer printed cloth is characterized by comprising a polyester fiber layer (1) and a transfer printed layer (2); the polyester fiber layer (1) is formed by carding conventional polyester fibers, and a plurality of bonding points are arranged inside the polyester fiber layer; the bonding points are two-component polyester fibers; the cross section of the bicomponent polyester fiber is of a sheath-core structure or a parallel structure; the bicomponent polyester fiber of the sheath-core structure comprises a sheath layer (13) and a core layer (14), wherein the sheath layer (13) is low-melting-point PET, and the core layer (14) is conventional PET; the bicomponent polyester fiber with the parallel structure comprises a part A and a part B, wherein the part A is low-melting-point PET, and the part B is conventional PET; the melting point of the low-melting-point PET is 180 ℃; the melting point of the conventional PET is 250-255 ℃.

2. The high-temperature-resistant thermal transfer printed cloth according to claim 1, wherein the polyester fiber layer (1) comprises a cross-lapping layer (11) and a parallel-lapping layer (12); the gram weight ratio of the cross lapping layer (11) to the parallel lapping layer (12) is 7:3-5: 5.

3. The high-temperature-resistant thermal transfer printed cloth according to claim 1, wherein the bicomponent polyester fibers have fineness of 4D and length of 51-64 mm; the fineness of the conventional polyester fiber is 1.56dtex, and the length of the conventional polyester fiber is 51-64 mm.

4. The high-temperature-resistant thermal transfer print according to claim 2, characterized in that the transfer print layer (2) is adjacent to a parallel ply (12).

5. The high-temperature-resistant thermal transfer printed cloth according to claim 1, wherein the other side of the polyester fiber layer (1) is compounded with a microporous membrane (3); the microporous membrane (3) has micropores, and the pore size of the micropores is between the diameter of water molecules and the diameter of air molecules.

6. The high-temperature-resistant thermal transfer printed cloth according to claim 1, wherein the cross section of the bicomponent polyester fibers in the side-by-side structure is circular, racetrack-shaped, dumbbell-shaped or peanut-shaped.