Filter bag structure of fiber tester and fiber tester

Abstract

The utility model provides a filter bag structure of a fiber tester and the fiber tester, and relates to the technical field of filter bags of testers. The filter bag structure of the fiber tester comprises a high-melting-point fiber and a low-melting-point fiber, the high-melting-point fibers and the low-melting-point fibers form non-woven fabrics through a needling process, and the edges of at least two pieces of non-woven fabrics are pressed together to form the filter bag. The fiber tester comprises the fiber tester filter bag structure. The technical effect that the filter bag can meet the measurement work requirement is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instrument filter bags, in particular to a fiber measuring instrument filter bag structure and a fiber measuring instrument. Background Art

[0002] The filter bag method was added to the fiber determination standard in feed in 2022. The specific standard numbers are as follows: GBT6434-2022 Determination of crude fiber content in feed, GBT20806-2022 Determination of neutral detergent fiber (NDF) in feed, NYT1459-2022 Determination of acid detergent fiber in feed.

[0003] The principle of fiber determination by the filter bag method: Acids, alkalis and other reagents freely enter the filter bag through the holes in the filter bag to react with the sample, dissolved fats, proteins and other substances flow out through the holes in the filter bag, and undissolved fibers remain in the filter bag.

[0004] The steps for determining fiber content by the filter bag method are as follows: first, place the sample with a qualified weighing number into the filter bag, seal it with a sealing machine, then place the filter bag into a beaker, add corresponding reagents (sulfuric acid / potassium hydroxide / acidic detergent / neutral detergent) into the beaker, and use a heating condensation device to slightly boil the reagents and filter bag in the beaker, then perform the steps of washing -> degreasing -> drying -> ashing, and finally calculate the fiber content using the calculation formula.

[0005] Filter bag production process: The filter bag raw material is non-woven fabric (non-woven fabric), which is pressed together by a specific machine and then cut according to the shape of the filter bag. Or the shape of the filter bag is cut first, and then the non-woven fabric is pressed together.

[0006] In order to ensure that the filter bag structure is not easily deformed during the digestion and drying process, the filter bag material is required to be resistant to acid, alkali, acidic detergents, acetone and other reagents and high temperature. There are basically two types of non-woven fabric materials for fiber measurement filter bags on the market: one type has a high melting point and is resistant to acid, alkali, acidic detergents, acetone and other reagents, such as polyester fiber (PET) and nylon fiber (PA); the other type has a low melting point and is resistant to acid, alkali, acidic detergents, acetone and other reagents, such as polypropylene fiber (PP) and polyethylene fiber (PE). Both types of filter bags are made of single melting point materials.

[0007] The disadvantage of filter bags made of single melting point materials such as polyester fiber (PET) and nylon fiber (PA) is that due to the high melting point, the thermal bonding effect of the sealing machine is poor, and it is easy for the seal to be loose, resulting in sample leakage and thus sample measurement failure.

[0008] Disadvantages of filter bags made of single melting point materials such as polypropylene fiber (PP) and polyethylene fiber (PE) are that during the boiling and drying process, the filter bag structure is prone to deformation, resulting in changes in the pore size of the filter bag, poor uniformity of the washing effect, and poor measurement uniformity in the same batch. Utility Model Content

[0009] The utility model aims to provide a filter bag structure of a fiber measuring instrument and a fiber measuring instrument, so as to alleviate the technical problem that the filter bag in the prior art cannot meet the requirements of measuring work.

[0010] In a first aspect, an embodiment of the utility model provides a fiber analyzer filter bag structure, including high melting point fiber and low melting point fiber;

[0011] The high-melting-point fiber and the low-melting-point fiber are both formed into a non-woven fabric through a needle punching process, and the edges of at least two sheets of the non-woven fabric are pressed together to form a filter bag.

[0012] In combination with the first aspect, an embodiment of the utility model provides a possible implementation of the first aspect, wherein the high-melting-point fiber and the low-melting-point fiber are formed into a two-component non-woven fabric through a needle punching process, and the edges of the two pieces of the two-component non-woven fabric are pressed together to form a filter bag.

[0013] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the high-melting-point fiber and the low-melting-point fiber both form a core-sheath structure.

[0014] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the low-melting-point fiber is coated on the outer layer of the high-melting-point fiber.

[0015] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the low-melting-point fiber completely covers the outer layer of the high-melting-point fiber.

[0016] In combination with the first aspect, an embodiment of the utility model provides a possible implementation of the first aspect, wherein the high-melting-point fiber and the low-melting-point fiber are mixed and needle-punched into the two-component non-woven fabric, and the edges of the two pieces of the two-component non-woven fabric are crimped together to form a filter bag.

[0017] In combination with the first aspect, an embodiment of the utility model provides a possible implementation of the first aspect, wherein the high-melting-point fibers are formed into a first non-woven fabric through a needle punching process, and the low-melting-point fibers are formed into a second non-woven fabric through a needle punching process, and the edges of the first non-woven fabric and the second non-woven fabric are crimped together to form a filter bag.

[0018] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the first non-woven fabric is provided on both sides of the second non-woven fabric.

[0019] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the second non-woven fabric is ring-shaped.

[0020] In a second aspect, an embodiment of the utility model provides a fiber measuring instrument, including the fiber measuring instrument filter bag structure.

[0021] Beneficial effects:

[0022] The utility model provides a filter bag structure of a fiber measuring instrument, comprising high melting point fiber and low melting point fiber; the high melting point fiber and the low melting point fiber are formed into non-woven fabrics through a needle punching process, and the edges of at least two pieces of non-woven fabrics are pressed together to form a filter bag.

[0023] Specifically, compared with the existing filter bags made of single melting point materials, the high melting point fibers in the fiber analyzer filter bag structure can provide good support, and the low melting point fibers can provide good bonding. The high melting point fibers do not deform during the boiling and drying processes, and the low melting point fibers will not cause sample leakage due to a loose seal during the sealing process of the sealing machine, resulting in sealing failure. As a result, the fiber analyzer filter bag structure can improve the thermal bonding effect when the sealing machine is used to seal, making the seal firm and avoiding sample measurement failure due to sample leakage. Moreover, the filter bag structure is not easily deformed during the boiling and drying processes, avoiding the problem of poor uniformity of the washing effect caused by changes in the pore size of the filter bag, resulting in poor measurement uniformity in the same batch.

[0024] The utility model provides a fiber measuring instrument, including a filter bag structure of the fiber measuring instrument. Compared with the prior art, the fiber measuring instrument has the above advantages, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The first implementation method of the fiber measuring instrument filter bag structure provided by the embodiment of the utility model;

[0027] Figure 2The first described manner of the two-component non-woven fabric structure in the first embodiment of the fiber measuring instrument filter bag structure provided in the embodiment of the utility model;

[0028] Figure 3 The second described manner of the two-component non-woven fabric structure in the first embodiment of the fiber measuring instrument filter bag structure provided in the embodiment of the utility model;

[0029] Figure 4 This is the second implementation of the fiber analyzer filter bag structure provided in the embodiment of the utility model.

[0030] icon:

[0031] 10 - high melting point fiber; 20 - low melting point fiber;

[0032] 100-bicomponent nonwoven fabric;

[0033] 200 - filter bag;

[0034] 310 - first non-woven fabric; 320 - second non-woven fabric. DETAILED DESCRIPTION

[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0040] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment provides a fiber analyzer filter bag structure, including high-melting point fibers 10 and low-melting point fibers 20; the high-melting point fibers 10 and the low-melting point fibers 20 are formed into non-woven fabrics through a needle punching process, and the edges of at least two pieces of non-woven fabrics are crimped together to form a filter bag 200.

[0041] Specifically, compared with the existing filter bag 200 made of a single melting point material, the high melting point fiber 10 of the fiber analyzer filter bag structure can provide good support, and the low melting point fiber 20 can provide good bonding. The high melting point fiber 10 does not deform during the boiling and drying process, and the low melting point fiber 20 does not cause a loose seal and sample leakage during the sealing process of the sealing machine, resulting in sealing failure. As a result, the fiber analyzer filter bag structure can improve the thermal bonding effect when the sealing machine is used to seal, making the seal firm and avoiding sample measurement failure due to sample leakage. In addition, the filter bag 200 structure is not easily deformed during the boiling and drying process, avoiding the problem of poor uniformity of washing effect caused by changes in the pore size of the filter bag 200, which leads to poor measurement uniformity of the same batch.

[0042] See also Figure 1 , Figure 2 and Figure 3 As shown, in an optional solution of this embodiment, the high-melting-point fiber 10 and the low-melting-point fiber 20 are formed into a bicomponent non-woven fabric 100 by a needle punching process, and the edges of two pieces of bicomponent non-woven fabric 100 are pressed together to form a filter bag 200.

[0043] Specifically, the high-melting-point fiber 10 and the low-melting-point fiber 20 can be formed into a two-component non-woven fabric 100 by any means, and then the edges of two or more pieces of the two-component non-woven fabric 100 are crimped together to form a filter bag 200, so that the filter bag 200 can take into account the advantages of both the high-melting-point fiber 10 and the low-melting-point fiber 20.

[0044] See also Figure 1 and Figure 2 As shown, in an optional solution of this embodiment, the high-melting-point fiber 10 and the low-melting-point fiber 20 both form a sheath-core structure.

[0045] The low melting point fiber 20 is coated on the outer layer of the high melting point fiber 10 .

[0046] The low-melting-point fiber 20 completely covers the outer layer of the high-melting-point fiber 10 .

[0047] Specifically, during the spinning process of producing both the high-melting-point fiber 10 and the low-melting-point fiber 20 , the low-melting-point fiber 20 is coated on the outer layer of the high-melting-point fiber 10 .

[0048] See also Figure 1 and Figure 3 As shown, in an optional solution of this embodiment, the high-melting-point fiber 10 and the low-melting-point fiber 20 are mixed and needle-punched into a bi-component non-woven fabric 100 , and the edges of two pieces of bi-component non-woven fabric 100 are pressed together to form a filter bag 200 .

[0049] Specifically, the high-melting-point fiber 10 and the low-melting-point fiber 20 can be blended to form the bicomponent non-woven fabric 100 , and the edges of two pieces of the bicomponent non-woven fabric 100 are pressed together to form the filter bag 200 .

[0050] See also Figure 4 As shown, in an optional scheme of this embodiment, the high-melting-point fiber 10 is formed into a first non-woven fabric 310 through a needle-punching process, and the low-melting-point fiber 20 is formed into a second non-woven fabric 320 through a needle-punching process, and the edges of the first non-woven fabric 310 and the second non-woven fabric 320 are crimped together to form a filter bag 200.

[0051] The first non-woven fabric 310 is disposed on both sides of the second non-woven fabric 320 .

[0052] The second non-woven fabric 320 is in a ring shape.

[0053] Specifically, the filter bag 200 may be formed by crimping two first non-woven fabrics 310 with one second non-woven fabric 320 sandwiched therebetween.

[0054] This embodiment provides a fiber analyzer, including a fiber analyzer filter bag 200 structure.

[0055] Specifically, the fiber analyzer provided in this embodiment has the advantages of the structure of the fiber analyzer filter bag 200 as compared with the prior art, which will not be described in detail here.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A fiber measuring instrument filter bag structure, characterized in that: include: High melting point fiber (10) and low melting point fiber (20); The high-melting-point fiber (10) and the low-melting-point fiber (20) are both formed into a non-woven fabric through a needle punching process, and the edges of at least two pieces of the non-woven fabric are pressed together to form a filter bag (200).

2. The fiber measuring instrument filter bag structure according to claim 1 is characterized in that: The high-melting-point fiber (10) and the low-melting-point fiber (20) are formed into a two-component non-woven fabric (100) through a needle punching process, and the edges of two pieces of the two-component non-woven fabric (100) are pressed together to form a filter bag (200).

3. The fiber measuring instrument filter bag structure according to claim 2 is characterized in that: The high-melting-point fiber (10) and the low-melting-point fiber (20) both form a core-sheath structure.

4. The fiber measuring instrument filter bag structure according to claim 3 is characterized in that: The low-melting-point fiber (20) is coated on the outer layer of the high-melting-point fiber (10).

5. The fiber measuring instrument filter bag structure according to claim 4 is characterized in that: The low-melting-point fiber (20) completely covers the outer layer of the high-melting-point fiber (10).

6. The fiber measuring instrument filter bag structure according to claim 2, characterized in that: The high-melting-point fibers (10) and the low-melting-point fibers (20) are mixed and needle-punched into the bicomponent non-woven fabric (100), and the edges of two pieces of the bicomponent non-woven fabric (100) are pressed together to form a filter bag (200).

7. The fiber measuring instrument filter bag structure according to claim 1, characterized in that: The high-melting-point fiber (10) is formed into a first non-woven fabric (310) through a needle-punching process, and the low-melting-point fiber (20) is formed into a second non-woven fabric (320) through a needle-punching process. The edges of the first non-woven fabric (310) and the second non-woven fabric (320) are pressed together to form a filter bag (200).

8. The fiber measuring instrument filter bag structure according to claim 7, characterized in that: The first non-woven fabric (310) is disposed on both sides of the second non-woven fabric (320).

9. The fiber measuring instrument filter bag structure according to claim 8, characterized in that: The second non-woven fabric (320) is ring-shaped.

10. A fiber measuring instrument, characterized in that: The invention comprises the filter bag structure of a fiber measuring instrument as described in any one of claims 1 to 9.

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